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36 * Note: this file was generated by the GROMACS sse4_1_single kernel generator.
42 #include "../nb_kernel.h"
43 #include "gromacs/legacyheaders/types/simple.h"
44 #include "gromacs/math/vec.h"
45 #include "gromacs/legacyheaders/nrnb.h"
47 #include "gromacs/simd/math_x86_sse4_1_single.h"
48 #include "kernelutil_x86_sse4_1_single.h"
51 * Gromacs nonbonded kernel: nb_kernel_ElecEw_VdwNone_GeomW3W3_VF_sse4_1_single
52 * Electrostatics interaction: Ewald
53 * VdW interaction: None
54 * Geometry: Water3-Water3
55 * Calculate force/pot: PotentialAndForce
58 nb_kernel_ElecEw_VdwNone_GeomW3W3_VF_sse4_1_single
59 (t_nblist * gmx_restrict nlist,
60 rvec * gmx_restrict xx,
61 rvec * gmx_restrict ff,
62 t_forcerec * gmx_restrict fr,
63 t_mdatoms * gmx_restrict mdatoms,
64 nb_kernel_data_t gmx_unused * gmx_restrict kernel_data,
65 t_nrnb * gmx_restrict nrnb)
67 /* Suffixes 0,1,2,3 refer to particle indices for waters in the inner or outer loop, or
68 * just 0 for non-waters.
69 * Suffixes A,B,C,D refer to j loop unrolling done with SSE, e.g. for the four different
70 * jnr indices corresponding to data put in the four positions in the SIMD register.
72 int i_shift_offset,i_coord_offset,outeriter,inneriter;
73 int j_index_start,j_index_end,jidx,nri,inr,ggid,iidx;
74 int jnrA,jnrB,jnrC,jnrD;
75 int jnrlistA,jnrlistB,jnrlistC,jnrlistD;
76 int j_coord_offsetA,j_coord_offsetB,j_coord_offsetC,j_coord_offsetD;
77 int *iinr,*jindex,*jjnr,*shiftidx,*gid;
79 real *shiftvec,*fshift,*x,*f;
80 real *fjptrA,*fjptrB,*fjptrC,*fjptrD;
82 __m128 tx,ty,tz,fscal,rcutoff,rcutoff2,jidxall;
84 __m128 ix0,iy0,iz0,fix0,fiy0,fiz0,iq0,isai0;
86 __m128 ix1,iy1,iz1,fix1,fiy1,fiz1,iq1,isai1;
88 __m128 ix2,iy2,iz2,fix2,fiy2,fiz2,iq2,isai2;
89 int vdwjidx0A,vdwjidx0B,vdwjidx0C,vdwjidx0D;
90 __m128 jx0,jy0,jz0,fjx0,fjy0,fjz0,jq0,isaj0;
91 int vdwjidx1A,vdwjidx1B,vdwjidx1C,vdwjidx1D;
92 __m128 jx1,jy1,jz1,fjx1,fjy1,fjz1,jq1,isaj1;
93 int vdwjidx2A,vdwjidx2B,vdwjidx2C,vdwjidx2D;
94 __m128 jx2,jy2,jz2,fjx2,fjy2,fjz2,jq2,isaj2;
95 __m128 dx00,dy00,dz00,rsq00,rinv00,rinvsq00,r00,qq00,c6_00,c12_00;
96 __m128 dx01,dy01,dz01,rsq01,rinv01,rinvsq01,r01,qq01,c6_01,c12_01;
97 __m128 dx02,dy02,dz02,rsq02,rinv02,rinvsq02,r02,qq02,c6_02,c12_02;
98 __m128 dx10,dy10,dz10,rsq10,rinv10,rinvsq10,r10,qq10,c6_10,c12_10;
99 __m128 dx11,dy11,dz11,rsq11,rinv11,rinvsq11,r11,qq11,c6_11,c12_11;
100 __m128 dx12,dy12,dz12,rsq12,rinv12,rinvsq12,r12,qq12,c6_12,c12_12;
101 __m128 dx20,dy20,dz20,rsq20,rinv20,rinvsq20,r20,qq20,c6_20,c12_20;
102 __m128 dx21,dy21,dz21,rsq21,rinv21,rinvsq21,r21,qq21,c6_21,c12_21;
103 __m128 dx22,dy22,dz22,rsq22,rinv22,rinvsq22,r22,qq22,c6_22,c12_22;
104 __m128 velec,felec,velecsum,facel,crf,krf,krf2;
107 __m128 ewtabscale,eweps,sh_ewald,ewrt,ewtabhalfspace,ewtabF,ewtabFn,ewtabD,ewtabV;
109 __m128 dummy_mask,cutoff_mask;
110 __m128 signbit = _mm_castsi128_ps( _mm_set1_epi32(0x80000000) );
111 __m128 one = _mm_set1_ps(1.0);
112 __m128 two = _mm_set1_ps(2.0);
118 jindex = nlist->jindex;
120 shiftidx = nlist->shift;
122 shiftvec = fr->shift_vec[0];
123 fshift = fr->fshift[0];
124 facel = _mm_set1_ps(fr->epsfac);
125 charge = mdatoms->chargeA;
127 sh_ewald = _mm_set1_ps(fr->ic->sh_ewald);
128 ewtab = fr->ic->tabq_coul_FDV0;
129 ewtabscale = _mm_set1_ps(fr->ic->tabq_scale);
130 ewtabhalfspace = _mm_set1_ps(0.5/fr->ic->tabq_scale);
132 /* Setup water-specific parameters */
133 inr = nlist->iinr[0];
134 iq0 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+0]));
135 iq1 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+1]));
136 iq2 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+2]));
138 jq0 = _mm_set1_ps(charge[inr+0]);
139 jq1 = _mm_set1_ps(charge[inr+1]);
140 jq2 = _mm_set1_ps(charge[inr+2]);
141 qq00 = _mm_mul_ps(iq0,jq0);
142 qq01 = _mm_mul_ps(iq0,jq1);
143 qq02 = _mm_mul_ps(iq0,jq2);
144 qq10 = _mm_mul_ps(iq1,jq0);
145 qq11 = _mm_mul_ps(iq1,jq1);
146 qq12 = _mm_mul_ps(iq1,jq2);
147 qq20 = _mm_mul_ps(iq2,jq0);
148 qq21 = _mm_mul_ps(iq2,jq1);
149 qq22 = _mm_mul_ps(iq2,jq2);
151 /* Avoid stupid compiler warnings */
152 jnrA = jnrB = jnrC = jnrD = 0;
161 for(iidx=0;iidx<4*DIM;iidx++)
166 /* Start outer loop over neighborlists */
167 for(iidx=0; iidx<nri; iidx++)
169 /* Load shift vector for this list */
170 i_shift_offset = DIM*shiftidx[iidx];
172 /* Load limits for loop over neighbors */
173 j_index_start = jindex[iidx];
174 j_index_end = jindex[iidx+1];
176 /* Get outer coordinate index */
178 i_coord_offset = DIM*inr;
180 /* Load i particle coords and add shift vector */
181 gmx_mm_load_shift_and_3rvec_broadcast_ps(shiftvec+i_shift_offset,x+i_coord_offset,
182 &ix0,&iy0,&iz0,&ix1,&iy1,&iz1,&ix2,&iy2,&iz2);
184 fix0 = _mm_setzero_ps();
185 fiy0 = _mm_setzero_ps();
186 fiz0 = _mm_setzero_ps();
187 fix1 = _mm_setzero_ps();
188 fiy1 = _mm_setzero_ps();
189 fiz1 = _mm_setzero_ps();
190 fix2 = _mm_setzero_ps();
191 fiy2 = _mm_setzero_ps();
192 fiz2 = _mm_setzero_ps();
194 /* Reset potential sums */
195 velecsum = _mm_setzero_ps();
197 /* Start inner kernel loop */
198 for(jidx=j_index_start; jidx<j_index_end && jjnr[jidx+3]>=0; jidx+=4)
201 /* Get j neighbor index, and coordinate index */
206 j_coord_offsetA = DIM*jnrA;
207 j_coord_offsetB = DIM*jnrB;
208 j_coord_offsetC = DIM*jnrC;
209 j_coord_offsetD = DIM*jnrD;
211 /* load j atom coordinates */
212 gmx_mm_load_3rvec_4ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB,
213 x+j_coord_offsetC,x+j_coord_offsetD,
214 &jx0,&jy0,&jz0,&jx1,&jy1,&jz1,&jx2,&jy2,&jz2);
216 /* Calculate displacement vector */
217 dx00 = _mm_sub_ps(ix0,jx0);
218 dy00 = _mm_sub_ps(iy0,jy0);
219 dz00 = _mm_sub_ps(iz0,jz0);
220 dx01 = _mm_sub_ps(ix0,jx1);
221 dy01 = _mm_sub_ps(iy0,jy1);
222 dz01 = _mm_sub_ps(iz0,jz1);
223 dx02 = _mm_sub_ps(ix0,jx2);
224 dy02 = _mm_sub_ps(iy0,jy2);
225 dz02 = _mm_sub_ps(iz0,jz2);
226 dx10 = _mm_sub_ps(ix1,jx0);
227 dy10 = _mm_sub_ps(iy1,jy0);
228 dz10 = _mm_sub_ps(iz1,jz0);
229 dx11 = _mm_sub_ps(ix1,jx1);
230 dy11 = _mm_sub_ps(iy1,jy1);
231 dz11 = _mm_sub_ps(iz1,jz1);
232 dx12 = _mm_sub_ps(ix1,jx2);
233 dy12 = _mm_sub_ps(iy1,jy2);
234 dz12 = _mm_sub_ps(iz1,jz2);
235 dx20 = _mm_sub_ps(ix2,jx0);
236 dy20 = _mm_sub_ps(iy2,jy0);
237 dz20 = _mm_sub_ps(iz2,jz0);
238 dx21 = _mm_sub_ps(ix2,jx1);
239 dy21 = _mm_sub_ps(iy2,jy1);
240 dz21 = _mm_sub_ps(iz2,jz1);
241 dx22 = _mm_sub_ps(ix2,jx2);
242 dy22 = _mm_sub_ps(iy2,jy2);
243 dz22 = _mm_sub_ps(iz2,jz2);
245 /* Calculate squared distance and things based on it */
246 rsq00 = gmx_mm_calc_rsq_ps(dx00,dy00,dz00);
247 rsq01 = gmx_mm_calc_rsq_ps(dx01,dy01,dz01);
248 rsq02 = gmx_mm_calc_rsq_ps(dx02,dy02,dz02);
249 rsq10 = gmx_mm_calc_rsq_ps(dx10,dy10,dz10);
250 rsq11 = gmx_mm_calc_rsq_ps(dx11,dy11,dz11);
251 rsq12 = gmx_mm_calc_rsq_ps(dx12,dy12,dz12);
252 rsq20 = gmx_mm_calc_rsq_ps(dx20,dy20,dz20);
253 rsq21 = gmx_mm_calc_rsq_ps(dx21,dy21,dz21);
254 rsq22 = gmx_mm_calc_rsq_ps(dx22,dy22,dz22);
256 rinv00 = gmx_mm_invsqrt_ps(rsq00);
257 rinv01 = gmx_mm_invsqrt_ps(rsq01);
258 rinv02 = gmx_mm_invsqrt_ps(rsq02);
259 rinv10 = gmx_mm_invsqrt_ps(rsq10);
260 rinv11 = gmx_mm_invsqrt_ps(rsq11);
261 rinv12 = gmx_mm_invsqrt_ps(rsq12);
262 rinv20 = gmx_mm_invsqrt_ps(rsq20);
263 rinv21 = gmx_mm_invsqrt_ps(rsq21);
264 rinv22 = gmx_mm_invsqrt_ps(rsq22);
266 rinvsq00 = _mm_mul_ps(rinv00,rinv00);
267 rinvsq01 = _mm_mul_ps(rinv01,rinv01);
268 rinvsq02 = _mm_mul_ps(rinv02,rinv02);
269 rinvsq10 = _mm_mul_ps(rinv10,rinv10);
270 rinvsq11 = _mm_mul_ps(rinv11,rinv11);
271 rinvsq12 = _mm_mul_ps(rinv12,rinv12);
272 rinvsq20 = _mm_mul_ps(rinv20,rinv20);
273 rinvsq21 = _mm_mul_ps(rinv21,rinv21);
274 rinvsq22 = _mm_mul_ps(rinv22,rinv22);
276 fjx0 = _mm_setzero_ps();
277 fjy0 = _mm_setzero_ps();
278 fjz0 = _mm_setzero_ps();
279 fjx1 = _mm_setzero_ps();
280 fjy1 = _mm_setzero_ps();
281 fjz1 = _mm_setzero_ps();
282 fjx2 = _mm_setzero_ps();
283 fjy2 = _mm_setzero_ps();
284 fjz2 = _mm_setzero_ps();
286 /**************************
287 * CALCULATE INTERACTIONS *
288 **************************/
290 r00 = _mm_mul_ps(rsq00,rinv00);
292 /* EWALD ELECTROSTATICS */
294 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
295 ewrt = _mm_mul_ps(r00,ewtabscale);
296 ewitab = _mm_cvttps_epi32(ewrt);
297 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
298 ewitab = _mm_slli_epi32(ewitab,2);
299 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
300 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
301 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
302 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
303 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
304 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
305 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
306 velec = _mm_mul_ps(qq00,_mm_sub_ps(rinv00,velec));
307 felec = _mm_mul_ps(_mm_mul_ps(qq00,rinv00),_mm_sub_ps(rinvsq00,felec));
309 /* Update potential sum for this i atom from the interaction with this j atom. */
310 velecsum = _mm_add_ps(velecsum,velec);
314 /* Calculate temporary vectorial force */
315 tx = _mm_mul_ps(fscal,dx00);
316 ty = _mm_mul_ps(fscal,dy00);
317 tz = _mm_mul_ps(fscal,dz00);
319 /* Update vectorial force */
320 fix0 = _mm_add_ps(fix0,tx);
321 fiy0 = _mm_add_ps(fiy0,ty);
322 fiz0 = _mm_add_ps(fiz0,tz);
324 fjx0 = _mm_add_ps(fjx0,tx);
325 fjy0 = _mm_add_ps(fjy0,ty);
326 fjz0 = _mm_add_ps(fjz0,tz);
328 /**************************
329 * CALCULATE INTERACTIONS *
330 **************************/
332 r01 = _mm_mul_ps(rsq01,rinv01);
334 /* EWALD ELECTROSTATICS */
336 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
337 ewrt = _mm_mul_ps(r01,ewtabscale);
338 ewitab = _mm_cvttps_epi32(ewrt);
339 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
340 ewitab = _mm_slli_epi32(ewitab,2);
341 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
342 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
343 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
344 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
345 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
346 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
347 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
348 velec = _mm_mul_ps(qq01,_mm_sub_ps(rinv01,velec));
349 felec = _mm_mul_ps(_mm_mul_ps(qq01,rinv01),_mm_sub_ps(rinvsq01,felec));
351 /* Update potential sum for this i atom from the interaction with this j atom. */
352 velecsum = _mm_add_ps(velecsum,velec);
356 /* Calculate temporary vectorial force */
357 tx = _mm_mul_ps(fscal,dx01);
358 ty = _mm_mul_ps(fscal,dy01);
359 tz = _mm_mul_ps(fscal,dz01);
361 /* Update vectorial force */
362 fix0 = _mm_add_ps(fix0,tx);
363 fiy0 = _mm_add_ps(fiy0,ty);
364 fiz0 = _mm_add_ps(fiz0,tz);
366 fjx1 = _mm_add_ps(fjx1,tx);
367 fjy1 = _mm_add_ps(fjy1,ty);
368 fjz1 = _mm_add_ps(fjz1,tz);
370 /**************************
371 * CALCULATE INTERACTIONS *
372 **************************/
374 r02 = _mm_mul_ps(rsq02,rinv02);
376 /* EWALD ELECTROSTATICS */
378 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
379 ewrt = _mm_mul_ps(r02,ewtabscale);
380 ewitab = _mm_cvttps_epi32(ewrt);
381 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
382 ewitab = _mm_slli_epi32(ewitab,2);
383 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
384 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
385 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
386 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
387 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
388 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
389 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
390 velec = _mm_mul_ps(qq02,_mm_sub_ps(rinv02,velec));
391 felec = _mm_mul_ps(_mm_mul_ps(qq02,rinv02),_mm_sub_ps(rinvsq02,felec));
393 /* Update potential sum for this i atom from the interaction with this j atom. */
394 velecsum = _mm_add_ps(velecsum,velec);
398 /* Calculate temporary vectorial force */
399 tx = _mm_mul_ps(fscal,dx02);
400 ty = _mm_mul_ps(fscal,dy02);
401 tz = _mm_mul_ps(fscal,dz02);
403 /* Update vectorial force */
404 fix0 = _mm_add_ps(fix0,tx);
405 fiy0 = _mm_add_ps(fiy0,ty);
406 fiz0 = _mm_add_ps(fiz0,tz);
408 fjx2 = _mm_add_ps(fjx2,tx);
409 fjy2 = _mm_add_ps(fjy2,ty);
410 fjz2 = _mm_add_ps(fjz2,tz);
412 /**************************
413 * CALCULATE INTERACTIONS *
414 **************************/
416 r10 = _mm_mul_ps(rsq10,rinv10);
418 /* EWALD ELECTROSTATICS */
420 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
421 ewrt = _mm_mul_ps(r10,ewtabscale);
422 ewitab = _mm_cvttps_epi32(ewrt);
423 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
424 ewitab = _mm_slli_epi32(ewitab,2);
425 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
426 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
427 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
428 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
429 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
430 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
431 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
432 velec = _mm_mul_ps(qq10,_mm_sub_ps(rinv10,velec));
433 felec = _mm_mul_ps(_mm_mul_ps(qq10,rinv10),_mm_sub_ps(rinvsq10,felec));
435 /* Update potential sum for this i atom from the interaction with this j atom. */
436 velecsum = _mm_add_ps(velecsum,velec);
440 /* Calculate temporary vectorial force */
441 tx = _mm_mul_ps(fscal,dx10);
442 ty = _mm_mul_ps(fscal,dy10);
443 tz = _mm_mul_ps(fscal,dz10);
445 /* Update vectorial force */
446 fix1 = _mm_add_ps(fix1,tx);
447 fiy1 = _mm_add_ps(fiy1,ty);
448 fiz1 = _mm_add_ps(fiz1,tz);
450 fjx0 = _mm_add_ps(fjx0,tx);
451 fjy0 = _mm_add_ps(fjy0,ty);
452 fjz0 = _mm_add_ps(fjz0,tz);
454 /**************************
455 * CALCULATE INTERACTIONS *
456 **************************/
458 r11 = _mm_mul_ps(rsq11,rinv11);
460 /* EWALD ELECTROSTATICS */
462 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
463 ewrt = _mm_mul_ps(r11,ewtabscale);
464 ewitab = _mm_cvttps_epi32(ewrt);
465 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
466 ewitab = _mm_slli_epi32(ewitab,2);
467 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
468 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
469 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
470 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
471 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
472 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
473 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
474 velec = _mm_mul_ps(qq11,_mm_sub_ps(rinv11,velec));
475 felec = _mm_mul_ps(_mm_mul_ps(qq11,rinv11),_mm_sub_ps(rinvsq11,felec));
477 /* Update potential sum for this i atom from the interaction with this j atom. */
478 velecsum = _mm_add_ps(velecsum,velec);
482 /* Calculate temporary vectorial force */
483 tx = _mm_mul_ps(fscal,dx11);
484 ty = _mm_mul_ps(fscal,dy11);
485 tz = _mm_mul_ps(fscal,dz11);
487 /* Update vectorial force */
488 fix1 = _mm_add_ps(fix1,tx);
489 fiy1 = _mm_add_ps(fiy1,ty);
490 fiz1 = _mm_add_ps(fiz1,tz);
492 fjx1 = _mm_add_ps(fjx1,tx);
493 fjy1 = _mm_add_ps(fjy1,ty);
494 fjz1 = _mm_add_ps(fjz1,tz);
496 /**************************
497 * CALCULATE INTERACTIONS *
498 **************************/
500 r12 = _mm_mul_ps(rsq12,rinv12);
502 /* EWALD ELECTROSTATICS */
504 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
505 ewrt = _mm_mul_ps(r12,ewtabscale);
506 ewitab = _mm_cvttps_epi32(ewrt);
507 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
508 ewitab = _mm_slli_epi32(ewitab,2);
509 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
510 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
511 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
512 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
513 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
514 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
515 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
516 velec = _mm_mul_ps(qq12,_mm_sub_ps(rinv12,velec));
517 felec = _mm_mul_ps(_mm_mul_ps(qq12,rinv12),_mm_sub_ps(rinvsq12,felec));
519 /* Update potential sum for this i atom from the interaction with this j atom. */
520 velecsum = _mm_add_ps(velecsum,velec);
524 /* Calculate temporary vectorial force */
525 tx = _mm_mul_ps(fscal,dx12);
526 ty = _mm_mul_ps(fscal,dy12);
527 tz = _mm_mul_ps(fscal,dz12);
529 /* Update vectorial force */
530 fix1 = _mm_add_ps(fix1,tx);
531 fiy1 = _mm_add_ps(fiy1,ty);
532 fiz1 = _mm_add_ps(fiz1,tz);
534 fjx2 = _mm_add_ps(fjx2,tx);
535 fjy2 = _mm_add_ps(fjy2,ty);
536 fjz2 = _mm_add_ps(fjz2,tz);
538 /**************************
539 * CALCULATE INTERACTIONS *
540 **************************/
542 r20 = _mm_mul_ps(rsq20,rinv20);
544 /* EWALD ELECTROSTATICS */
546 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
547 ewrt = _mm_mul_ps(r20,ewtabscale);
548 ewitab = _mm_cvttps_epi32(ewrt);
549 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
550 ewitab = _mm_slli_epi32(ewitab,2);
551 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
552 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
553 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
554 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
555 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
556 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
557 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
558 velec = _mm_mul_ps(qq20,_mm_sub_ps(rinv20,velec));
559 felec = _mm_mul_ps(_mm_mul_ps(qq20,rinv20),_mm_sub_ps(rinvsq20,felec));
561 /* Update potential sum for this i atom from the interaction with this j atom. */
562 velecsum = _mm_add_ps(velecsum,velec);
566 /* Calculate temporary vectorial force */
567 tx = _mm_mul_ps(fscal,dx20);
568 ty = _mm_mul_ps(fscal,dy20);
569 tz = _mm_mul_ps(fscal,dz20);
571 /* Update vectorial force */
572 fix2 = _mm_add_ps(fix2,tx);
573 fiy2 = _mm_add_ps(fiy2,ty);
574 fiz2 = _mm_add_ps(fiz2,tz);
576 fjx0 = _mm_add_ps(fjx0,tx);
577 fjy0 = _mm_add_ps(fjy0,ty);
578 fjz0 = _mm_add_ps(fjz0,tz);
580 /**************************
581 * CALCULATE INTERACTIONS *
582 **************************/
584 r21 = _mm_mul_ps(rsq21,rinv21);
586 /* EWALD ELECTROSTATICS */
588 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
589 ewrt = _mm_mul_ps(r21,ewtabscale);
590 ewitab = _mm_cvttps_epi32(ewrt);
591 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
592 ewitab = _mm_slli_epi32(ewitab,2);
593 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
594 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
595 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
596 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
597 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
598 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
599 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
600 velec = _mm_mul_ps(qq21,_mm_sub_ps(rinv21,velec));
601 felec = _mm_mul_ps(_mm_mul_ps(qq21,rinv21),_mm_sub_ps(rinvsq21,felec));
603 /* Update potential sum for this i atom from the interaction with this j atom. */
604 velecsum = _mm_add_ps(velecsum,velec);
608 /* Calculate temporary vectorial force */
609 tx = _mm_mul_ps(fscal,dx21);
610 ty = _mm_mul_ps(fscal,dy21);
611 tz = _mm_mul_ps(fscal,dz21);
613 /* Update vectorial force */
614 fix2 = _mm_add_ps(fix2,tx);
615 fiy2 = _mm_add_ps(fiy2,ty);
616 fiz2 = _mm_add_ps(fiz2,tz);
618 fjx1 = _mm_add_ps(fjx1,tx);
619 fjy1 = _mm_add_ps(fjy1,ty);
620 fjz1 = _mm_add_ps(fjz1,tz);
622 /**************************
623 * CALCULATE INTERACTIONS *
624 **************************/
626 r22 = _mm_mul_ps(rsq22,rinv22);
628 /* EWALD ELECTROSTATICS */
630 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
631 ewrt = _mm_mul_ps(r22,ewtabscale);
632 ewitab = _mm_cvttps_epi32(ewrt);
633 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
634 ewitab = _mm_slli_epi32(ewitab,2);
635 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
636 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
637 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
638 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
639 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
640 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
641 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
642 velec = _mm_mul_ps(qq22,_mm_sub_ps(rinv22,velec));
643 felec = _mm_mul_ps(_mm_mul_ps(qq22,rinv22),_mm_sub_ps(rinvsq22,felec));
645 /* Update potential sum for this i atom from the interaction with this j atom. */
646 velecsum = _mm_add_ps(velecsum,velec);
650 /* Calculate temporary vectorial force */
651 tx = _mm_mul_ps(fscal,dx22);
652 ty = _mm_mul_ps(fscal,dy22);
653 tz = _mm_mul_ps(fscal,dz22);
655 /* Update vectorial force */
656 fix2 = _mm_add_ps(fix2,tx);
657 fiy2 = _mm_add_ps(fiy2,ty);
658 fiz2 = _mm_add_ps(fiz2,tz);
660 fjx2 = _mm_add_ps(fjx2,tx);
661 fjy2 = _mm_add_ps(fjy2,ty);
662 fjz2 = _mm_add_ps(fjz2,tz);
664 fjptrA = f+j_coord_offsetA;
665 fjptrB = f+j_coord_offsetB;
666 fjptrC = f+j_coord_offsetC;
667 fjptrD = f+j_coord_offsetD;
669 gmx_mm_decrement_3rvec_4ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,
670 fjx0,fjy0,fjz0,fjx1,fjy1,fjz1,fjx2,fjy2,fjz2);
672 /* Inner loop uses 369 flops */
678 /* Get j neighbor index, and coordinate index */
679 jnrlistA = jjnr[jidx];
680 jnrlistB = jjnr[jidx+1];
681 jnrlistC = jjnr[jidx+2];
682 jnrlistD = jjnr[jidx+3];
683 /* Sign of each element will be negative for non-real atoms.
684 * This mask will be 0xFFFFFFFF for dummy entries and 0x0 for real ones,
685 * so use it as val = _mm_andnot_ps(mask,val) to clear dummy entries.
687 dummy_mask = gmx_mm_castsi128_ps(_mm_cmplt_epi32(_mm_loadu_si128((const __m128i *)(jjnr+jidx)),_mm_setzero_si128()));
688 jnrA = (jnrlistA>=0) ? jnrlistA : 0;
689 jnrB = (jnrlistB>=0) ? jnrlistB : 0;
690 jnrC = (jnrlistC>=0) ? jnrlistC : 0;
691 jnrD = (jnrlistD>=0) ? jnrlistD : 0;
692 j_coord_offsetA = DIM*jnrA;
693 j_coord_offsetB = DIM*jnrB;
694 j_coord_offsetC = DIM*jnrC;
695 j_coord_offsetD = DIM*jnrD;
697 /* load j atom coordinates */
698 gmx_mm_load_3rvec_4ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB,
699 x+j_coord_offsetC,x+j_coord_offsetD,
700 &jx0,&jy0,&jz0,&jx1,&jy1,&jz1,&jx2,&jy2,&jz2);
702 /* Calculate displacement vector */
703 dx00 = _mm_sub_ps(ix0,jx0);
704 dy00 = _mm_sub_ps(iy0,jy0);
705 dz00 = _mm_sub_ps(iz0,jz0);
706 dx01 = _mm_sub_ps(ix0,jx1);
707 dy01 = _mm_sub_ps(iy0,jy1);
708 dz01 = _mm_sub_ps(iz0,jz1);
709 dx02 = _mm_sub_ps(ix0,jx2);
710 dy02 = _mm_sub_ps(iy0,jy2);
711 dz02 = _mm_sub_ps(iz0,jz2);
712 dx10 = _mm_sub_ps(ix1,jx0);
713 dy10 = _mm_sub_ps(iy1,jy0);
714 dz10 = _mm_sub_ps(iz1,jz0);
715 dx11 = _mm_sub_ps(ix1,jx1);
716 dy11 = _mm_sub_ps(iy1,jy1);
717 dz11 = _mm_sub_ps(iz1,jz1);
718 dx12 = _mm_sub_ps(ix1,jx2);
719 dy12 = _mm_sub_ps(iy1,jy2);
720 dz12 = _mm_sub_ps(iz1,jz2);
721 dx20 = _mm_sub_ps(ix2,jx0);
722 dy20 = _mm_sub_ps(iy2,jy0);
723 dz20 = _mm_sub_ps(iz2,jz0);
724 dx21 = _mm_sub_ps(ix2,jx1);
725 dy21 = _mm_sub_ps(iy2,jy1);
726 dz21 = _mm_sub_ps(iz2,jz1);
727 dx22 = _mm_sub_ps(ix2,jx2);
728 dy22 = _mm_sub_ps(iy2,jy2);
729 dz22 = _mm_sub_ps(iz2,jz2);
731 /* Calculate squared distance and things based on it */
732 rsq00 = gmx_mm_calc_rsq_ps(dx00,dy00,dz00);
733 rsq01 = gmx_mm_calc_rsq_ps(dx01,dy01,dz01);
734 rsq02 = gmx_mm_calc_rsq_ps(dx02,dy02,dz02);
735 rsq10 = gmx_mm_calc_rsq_ps(dx10,dy10,dz10);
736 rsq11 = gmx_mm_calc_rsq_ps(dx11,dy11,dz11);
737 rsq12 = gmx_mm_calc_rsq_ps(dx12,dy12,dz12);
738 rsq20 = gmx_mm_calc_rsq_ps(dx20,dy20,dz20);
739 rsq21 = gmx_mm_calc_rsq_ps(dx21,dy21,dz21);
740 rsq22 = gmx_mm_calc_rsq_ps(dx22,dy22,dz22);
742 rinv00 = gmx_mm_invsqrt_ps(rsq00);
743 rinv01 = gmx_mm_invsqrt_ps(rsq01);
744 rinv02 = gmx_mm_invsqrt_ps(rsq02);
745 rinv10 = gmx_mm_invsqrt_ps(rsq10);
746 rinv11 = gmx_mm_invsqrt_ps(rsq11);
747 rinv12 = gmx_mm_invsqrt_ps(rsq12);
748 rinv20 = gmx_mm_invsqrt_ps(rsq20);
749 rinv21 = gmx_mm_invsqrt_ps(rsq21);
750 rinv22 = gmx_mm_invsqrt_ps(rsq22);
752 rinvsq00 = _mm_mul_ps(rinv00,rinv00);
753 rinvsq01 = _mm_mul_ps(rinv01,rinv01);
754 rinvsq02 = _mm_mul_ps(rinv02,rinv02);
755 rinvsq10 = _mm_mul_ps(rinv10,rinv10);
756 rinvsq11 = _mm_mul_ps(rinv11,rinv11);
757 rinvsq12 = _mm_mul_ps(rinv12,rinv12);
758 rinvsq20 = _mm_mul_ps(rinv20,rinv20);
759 rinvsq21 = _mm_mul_ps(rinv21,rinv21);
760 rinvsq22 = _mm_mul_ps(rinv22,rinv22);
762 fjx0 = _mm_setzero_ps();
763 fjy0 = _mm_setzero_ps();
764 fjz0 = _mm_setzero_ps();
765 fjx1 = _mm_setzero_ps();
766 fjy1 = _mm_setzero_ps();
767 fjz1 = _mm_setzero_ps();
768 fjx2 = _mm_setzero_ps();
769 fjy2 = _mm_setzero_ps();
770 fjz2 = _mm_setzero_ps();
772 /**************************
773 * CALCULATE INTERACTIONS *
774 **************************/
776 r00 = _mm_mul_ps(rsq00,rinv00);
777 r00 = _mm_andnot_ps(dummy_mask,r00);
779 /* EWALD ELECTROSTATICS */
781 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
782 ewrt = _mm_mul_ps(r00,ewtabscale);
783 ewitab = _mm_cvttps_epi32(ewrt);
784 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
785 ewitab = _mm_slli_epi32(ewitab,2);
786 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
787 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
788 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
789 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
790 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
791 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
792 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
793 velec = _mm_mul_ps(qq00,_mm_sub_ps(rinv00,velec));
794 felec = _mm_mul_ps(_mm_mul_ps(qq00,rinv00),_mm_sub_ps(rinvsq00,felec));
796 /* Update potential sum for this i atom from the interaction with this j atom. */
797 velec = _mm_andnot_ps(dummy_mask,velec);
798 velecsum = _mm_add_ps(velecsum,velec);
802 fscal = _mm_andnot_ps(dummy_mask,fscal);
804 /* Calculate temporary vectorial force */
805 tx = _mm_mul_ps(fscal,dx00);
806 ty = _mm_mul_ps(fscal,dy00);
807 tz = _mm_mul_ps(fscal,dz00);
809 /* Update vectorial force */
810 fix0 = _mm_add_ps(fix0,tx);
811 fiy0 = _mm_add_ps(fiy0,ty);
812 fiz0 = _mm_add_ps(fiz0,tz);
814 fjx0 = _mm_add_ps(fjx0,tx);
815 fjy0 = _mm_add_ps(fjy0,ty);
816 fjz0 = _mm_add_ps(fjz0,tz);
818 /**************************
819 * CALCULATE INTERACTIONS *
820 **************************/
822 r01 = _mm_mul_ps(rsq01,rinv01);
823 r01 = _mm_andnot_ps(dummy_mask,r01);
825 /* EWALD ELECTROSTATICS */
827 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
828 ewrt = _mm_mul_ps(r01,ewtabscale);
829 ewitab = _mm_cvttps_epi32(ewrt);
830 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
831 ewitab = _mm_slli_epi32(ewitab,2);
832 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
833 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
834 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
835 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
836 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
837 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
838 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
839 velec = _mm_mul_ps(qq01,_mm_sub_ps(rinv01,velec));
840 felec = _mm_mul_ps(_mm_mul_ps(qq01,rinv01),_mm_sub_ps(rinvsq01,felec));
842 /* Update potential sum for this i atom from the interaction with this j atom. */
843 velec = _mm_andnot_ps(dummy_mask,velec);
844 velecsum = _mm_add_ps(velecsum,velec);
848 fscal = _mm_andnot_ps(dummy_mask,fscal);
850 /* Calculate temporary vectorial force */
851 tx = _mm_mul_ps(fscal,dx01);
852 ty = _mm_mul_ps(fscal,dy01);
853 tz = _mm_mul_ps(fscal,dz01);
855 /* Update vectorial force */
856 fix0 = _mm_add_ps(fix0,tx);
857 fiy0 = _mm_add_ps(fiy0,ty);
858 fiz0 = _mm_add_ps(fiz0,tz);
860 fjx1 = _mm_add_ps(fjx1,tx);
861 fjy1 = _mm_add_ps(fjy1,ty);
862 fjz1 = _mm_add_ps(fjz1,tz);
864 /**************************
865 * CALCULATE INTERACTIONS *
866 **************************/
868 r02 = _mm_mul_ps(rsq02,rinv02);
869 r02 = _mm_andnot_ps(dummy_mask,r02);
871 /* EWALD ELECTROSTATICS */
873 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
874 ewrt = _mm_mul_ps(r02,ewtabscale);
875 ewitab = _mm_cvttps_epi32(ewrt);
876 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
877 ewitab = _mm_slli_epi32(ewitab,2);
878 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
879 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
880 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
881 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
882 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
883 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
884 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
885 velec = _mm_mul_ps(qq02,_mm_sub_ps(rinv02,velec));
886 felec = _mm_mul_ps(_mm_mul_ps(qq02,rinv02),_mm_sub_ps(rinvsq02,felec));
888 /* Update potential sum for this i atom from the interaction with this j atom. */
889 velec = _mm_andnot_ps(dummy_mask,velec);
890 velecsum = _mm_add_ps(velecsum,velec);
894 fscal = _mm_andnot_ps(dummy_mask,fscal);
896 /* Calculate temporary vectorial force */
897 tx = _mm_mul_ps(fscal,dx02);
898 ty = _mm_mul_ps(fscal,dy02);
899 tz = _mm_mul_ps(fscal,dz02);
901 /* Update vectorial force */
902 fix0 = _mm_add_ps(fix0,tx);
903 fiy0 = _mm_add_ps(fiy0,ty);
904 fiz0 = _mm_add_ps(fiz0,tz);
906 fjx2 = _mm_add_ps(fjx2,tx);
907 fjy2 = _mm_add_ps(fjy2,ty);
908 fjz2 = _mm_add_ps(fjz2,tz);
910 /**************************
911 * CALCULATE INTERACTIONS *
912 **************************/
914 r10 = _mm_mul_ps(rsq10,rinv10);
915 r10 = _mm_andnot_ps(dummy_mask,r10);
917 /* EWALD ELECTROSTATICS */
919 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
920 ewrt = _mm_mul_ps(r10,ewtabscale);
921 ewitab = _mm_cvttps_epi32(ewrt);
922 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
923 ewitab = _mm_slli_epi32(ewitab,2);
924 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
925 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
926 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
927 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
928 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
929 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
930 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
931 velec = _mm_mul_ps(qq10,_mm_sub_ps(rinv10,velec));
932 felec = _mm_mul_ps(_mm_mul_ps(qq10,rinv10),_mm_sub_ps(rinvsq10,felec));
934 /* Update potential sum for this i atom from the interaction with this j atom. */
935 velec = _mm_andnot_ps(dummy_mask,velec);
936 velecsum = _mm_add_ps(velecsum,velec);
940 fscal = _mm_andnot_ps(dummy_mask,fscal);
942 /* Calculate temporary vectorial force */
943 tx = _mm_mul_ps(fscal,dx10);
944 ty = _mm_mul_ps(fscal,dy10);
945 tz = _mm_mul_ps(fscal,dz10);
947 /* Update vectorial force */
948 fix1 = _mm_add_ps(fix1,tx);
949 fiy1 = _mm_add_ps(fiy1,ty);
950 fiz1 = _mm_add_ps(fiz1,tz);
952 fjx0 = _mm_add_ps(fjx0,tx);
953 fjy0 = _mm_add_ps(fjy0,ty);
954 fjz0 = _mm_add_ps(fjz0,tz);
956 /**************************
957 * CALCULATE INTERACTIONS *
958 **************************/
960 r11 = _mm_mul_ps(rsq11,rinv11);
961 r11 = _mm_andnot_ps(dummy_mask,r11);
963 /* EWALD ELECTROSTATICS */
965 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
966 ewrt = _mm_mul_ps(r11,ewtabscale);
967 ewitab = _mm_cvttps_epi32(ewrt);
968 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
969 ewitab = _mm_slli_epi32(ewitab,2);
970 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
971 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
972 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
973 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
974 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
975 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
976 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
977 velec = _mm_mul_ps(qq11,_mm_sub_ps(rinv11,velec));
978 felec = _mm_mul_ps(_mm_mul_ps(qq11,rinv11),_mm_sub_ps(rinvsq11,felec));
980 /* Update potential sum for this i atom from the interaction with this j atom. */
981 velec = _mm_andnot_ps(dummy_mask,velec);
982 velecsum = _mm_add_ps(velecsum,velec);
986 fscal = _mm_andnot_ps(dummy_mask,fscal);
988 /* Calculate temporary vectorial force */
989 tx = _mm_mul_ps(fscal,dx11);
990 ty = _mm_mul_ps(fscal,dy11);
991 tz = _mm_mul_ps(fscal,dz11);
993 /* Update vectorial force */
994 fix1 = _mm_add_ps(fix1,tx);
995 fiy1 = _mm_add_ps(fiy1,ty);
996 fiz1 = _mm_add_ps(fiz1,tz);
998 fjx1 = _mm_add_ps(fjx1,tx);
999 fjy1 = _mm_add_ps(fjy1,ty);
1000 fjz1 = _mm_add_ps(fjz1,tz);
1002 /**************************
1003 * CALCULATE INTERACTIONS *
1004 **************************/
1006 r12 = _mm_mul_ps(rsq12,rinv12);
1007 r12 = _mm_andnot_ps(dummy_mask,r12);
1009 /* EWALD ELECTROSTATICS */
1011 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1012 ewrt = _mm_mul_ps(r12,ewtabscale);
1013 ewitab = _mm_cvttps_epi32(ewrt);
1014 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1015 ewitab = _mm_slli_epi32(ewitab,2);
1016 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
1017 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
1018 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
1019 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
1020 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
1021 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
1022 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
1023 velec = _mm_mul_ps(qq12,_mm_sub_ps(rinv12,velec));
1024 felec = _mm_mul_ps(_mm_mul_ps(qq12,rinv12),_mm_sub_ps(rinvsq12,felec));
1026 /* Update potential sum for this i atom from the interaction with this j atom. */
1027 velec = _mm_andnot_ps(dummy_mask,velec);
1028 velecsum = _mm_add_ps(velecsum,velec);
1032 fscal = _mm_andnot_ps(dummy_mask,fscal);
1034 /* Calculate temporary vectorial force */
1035 tx = _mm_mul_ps(fscal,dx12);
1036 ty = _mm_mul_ps(fscal,dy12);
1037 tz = _mm_mul_ps(fscal,dz12);
1039 /* Update vectorial force */
1040 fix1 = _mm_add_ps(fix1,tx);
1041 fiy1 = _mm_add_ps(fiy1,ty);
1042 fiz1 = _mm_add_ps(fiz1,tz);
1044 fjx2 = _mm_add_ps(fjx2,tx);
1045 fjy2 = _mm_add_ps(fjy2,ty);
1046 fjz2 = _mm_add_ps(fjz2,tz);
1048 /**************************
1049 * CALCULATE INTERACTIONS *
1050 **************************/
1052 r20 = _mm_mul_ps(rsq20,rinv20);
1053 r20 = _mm_andnot_ps(dummy_mask,r20);
1055 /* EWALD ELECTROSTATICS */
1057 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1058 ewrt = _mm_mul_ps(r20,ewtabscale);
1059 ewitab = _mm_cvttps_epi32(ewrt);
1060 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1061 ewitab = _mm_slli_epi32(ewitab,2);
1062 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
1063 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
1064 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
1065 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
1066 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
1067 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
1068 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
1069 velec = _mm_mul_ps(qq20,_mm_sub_ps(rinv20,velec));
1070 felec = _mm_mul_ps(_mm_mul_ps(qq20,rinv20),_mm_sub_ps(rinvsq20,felec));
1072 /* Update potential sum for this i atom from the interaction with this j atom. */
1073 velec = _mm_andnot_ps(dummy_mask,velec);
1074 velecsum = _mm_add_ps(velecsum,velec);
1078 fscal = _mm_andnot_ps(dummy_mask,fscal);
1080 /* Calculate temporary vectorial force */
1081 tx = _mm_mul_ps(fscal,dx20);
1082 ty = _mm_mul_ps(fscal,dy20);
1083 tz = _mm_mul_ps(fscal,dz20);
1085 /* Update vectorial force */
1086 fix2 = _mm_add_ps(fix2,tx);
1087 fiy2 = _mm_add_ps(fiy2,ty);
1088 fiz2 = _mm_add_ps(fiz2,tz);
1090 fjx0 = _mm_add_ps(fjx0,tx);
1091 fjy0 = _mm_add_ps(fjy0,ty);
1092 fjz0 = _mm_add_ps(fjz0,tz);
1094 /**************************
1095 * CALCULATE INTERACTIONS *
1096 **************************/
1098 r21 = _mm_mul_ps(rsq21,rinv21);
1099 r21 = _mm_andnot_ps(dummy_mask,r21);
1101 /* EWALD ELECTROSTATICS */
1103 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1104 ewrt = _mm_mul_ps(r21,ewtabscale);
1105 ewitab = _mm_cvttps_epi32(ewrt);
1106 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1107 ewitab = _mm_slli_epi32(ewitab,2);
1108 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
1109 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
1110 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
1111 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
1112 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
1113 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
1114 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
1115 velec = _mm_mul_ps(qq21,_mm_sub_ps(rinv21,velec));
1116 felec = _mm_mul_ps(_mm_mul_ps(qq21,rinv21),_mm_sub_ps(rinvsq21,felec));
1118 /* Update potential sum for this i atom from the interaction with this j atom. */
1119 velec = _mm_andnot_ps(dummy_mask,velec);
1120 velecsum = _mm_add_ps(velecsum,velec);
1124 fscal = _mm_andnot_ps(dummy_mask,fscal);
1126 /* Calculate temporary vectorial force */
1127 tx = _mm_mul_ps(fscal,dx21);
1128 ty = _mm_mul_ps(fscal,dy21);
1129 tz = _mm_mul_ps(fscal,dz21);
1131 /* Update vectorial force */
1132 fix2 = _mm_add_ps(fix2,tx);
1133 fiy2 = _mm_add_ps(fiy2,ty);
1134 fiz2 = _mm_add_ps(fiz2,tz);
1136 fjx1 = _mm_add_ps(fjx1,tx);
1137 fjy1 = _mm_add_ps(fjy1,ty);
1138 fjz1 = _mm_add_ps(fjz1,tz);
1140 /**************************
1141 * CALCULATE INTERACTIONS *
1142 **************************/
1144 r22 = _mm_mul_ps(rsq22,rinv22);
1145 r22 = _mm_andnot_ps(dummy_mask,r22);
1147 /* EWALD ELECTROSTATICS */
1149 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1150 ewrt = _mm_mul_ps(r22,ewtabscale);
1151 ewitab = _mm_cvttps_epi32(ewrt);
1152 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1153 ewitab = _mm_slli_epi32(ewitab,2);
1154 ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0) );
1155 ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1) );
1156 ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2) );
1157 ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3) );
1158 _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn);
1159 felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD));
1160 velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec)));
1161 velec = _mm_mul_ps(qq22,_mm_sub_ps(rinv22,velec));
1162 felec = _mm_mul_ps(_mm_mul_ps(qq22,rinv22),_mm_sub_ps(rinvsq22,felec));
1164 /* Update potential sum for this i atom from the interaction with this j atom. */
1165 velec = _mm_andnot_ps(dummy_mask,velec);
1166 velecsum = _mm_add_ps(velecsum,velec);
1170 fscal = _mm_andnot_ps(dummy_mask,fscal);
1172 /* Calculate temporary vectorial force */
1173 tx = _mm_mul_ps(fscal,dx22);
1174 ty = _mm_mul_ps(fscal,dy22);
1175 tz = _mm_mul_ps(fscal,dz22);
1177 /* Update vectorial force */
1178 fix2 = _mm_add_ps(fix2,tx);
1179 fiy2 = _mm_add_ps(fiy2,ty);
1180 fiz2 = _mm_add_ps(fiz2,tz);
1182 fjx2 = _mm_add_ps(fjx2,tx);
1183 fjy2 = _mm_add_ps(fjy2,ty);
1184 fjz2 = _mm_add_ps(fjz2,tz);
1186 fjptrA = (jnrlistA>=0) ? f+j_coord_offsetA : scratch;
1187 fjptrB = (jnrlistB>=0) ? f+j_coord_offsetB : scratch;
1188 fjptrC = (jnrlistC>=0) ? f+j_coord_offsetC : scratch;
1189 fjptrD = (jnrlistD>=0) ? f+j_coord_offsetD : scratch;
1191 gmx_mm_decrement_3rvec_4ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,
1192 fjx0,fjy0,fjz0,fjx1,fjy1,fjz1,fjx2,fjy2,fjz2);
1194 /* Inner loop uses 378 flops */
1197 /* End of innermost loop */
1199 gmx_mm_update_iforce_3atom_swizzle_ps(fix0,fiy0,fiz0,fix1,fiy1,fiz1,fix2,fiy2,fiz2,
1200 f+i_coord_offset,fshift+i_shift_offset);
1203 /* Update potential energies */
1204 gmx_mm_update_1pot_ps(velecsum,kernel_data->energygrp_elec+ggid);
1206 /* Increment number of inner iterations */
1207 inneriter += j_index_end - j_index_start;
1209 /* Outer loop uses 19 flops */
1212 /* Increment number of outer iterations */
1215 /* Update outer/inner flops */
1217 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_W3W3_VF,outeriter*19 + inneriter*378);
1220 * Gromacs nonbonded kernel: nb_kernel_ElecEw_VdwNone_GeomW3W3_F_sse4_1_single
1221 * Electrostatics interaction: Ewald
1222 * VdW interaction: None
1223 * Geometry: Water3-Water3
1224 * Calculate force/pot: Force
1227 nb_kernel_ElecEw_VdwNone_GeomW3W3_F_sse4_1_single
1228 (t_nblist * gmx_restrict nlist,
1229 rvec * gmx_restrict xx,
1230 rvec * gmx_restrict ff,
1231 t_forcerec * gmx_restrict fr,
1232 t_mdatoms * gmx_restrict mdatoms,
1233 nb_kernel_data_t gmx_unused * gmx_restrict kernel_data,
1234 t_nrnb * gmx_restrict nrnb)
1236 /* Suffixes 0,1,2,3 refer to particle indices for waters in the inner or outer loop, or
1237 * just 0 for non-waters.
1238 * Suffixes A,B,C,D refer to j loop unrolling done with SSE, e.g. for the four different
1239 * jnr indices corresponding to data put in the four positions in the SIMD register.
1241 int i_shift_offset,i_coord_offset,outeriter,inneriter;
1242 int j_index_start,j_index_end,jidx,nri,inr,ggid,iidx;
1243 int jnrA,jnrB,jnrC,jnrD;
1244 int jnrlistA,jnrlistB,jnrlistC,jnrlistD;
1245 int j_coord_offsetA,j_coord_offsetB,j_coord_offsetC,j_coord_offsetD;
1246 int *iinr,*jindex,*jjnr,*shiftidx,*gid;
1247 real rcutoff_scalar;
1248 real *shiftvec,*fshift,*x,*f;
1249 real *fjptrA,*fjptrB,*fjptrC,*fjptrD;
1250 real scratch[4*DIM];
1251 __m128 tx,ty,tz,fscal,rcutoff,rcutoff2,jidxall;
1253 __m128 ix0,iy0,iz0,fix0,fiy0,fiz0,iq0,isai0;
1255 __m128 ix1,iy1,iz1,fix1,fiy1,fiz1,iq1,isai1;
1257 __m128 ix2,iy2,iz2,fix2,fiy2,fiz2,iq2,isai2;
1258 int vdwjidx0A,vdwjidx0B,vdwjidx0C,vdwjidx0D;
1259 __m128 jx0,jy0,jz0,fjx0,fjy0,fjz0,jq0,isaj0;
1260 int vdwjidx1A,vdwjidx1B,vdwjidx1C,vdwjidx1D;
1261 __m128 jx1,jy1,jz1,fjx1,fjy1,fjz1,jq1,isaj1;
1262 int vdwjidx2A,vdwjidx2B,vdwjidx2C,vdwjidx2D;
1263 __m128 jx2,jy2,jz2,fjx2,fjy2,fjz2,jq2,isaj2;
1264 __m128 dx00,dy00,dz00,rsq00,rinv00,rinvsq00,r00,qq00,c6_00,c12_00;
1265 __m128 dx01,dy01,dz01,rsq01,rinv01,rinvsq01,r01,qq01,c6_01,c12_01;
1266 __m128 dx02,dy02,dz02,rsq02,rinv02,rinvsq02,r02,qq02,c6_02,c12_02;
1267 __m128 dx10,dy10,dz10,rsq10,rinv10,rinvsq10,r10,qq10,c6_10,c12_10;
1268 __m128 dx11,dy11,dz11,rsq11,rinv11,rinvsq11,r11,qq11,c6_11,c12_11;
1269 __m128 dx12,dy12,dz12,rsq12,rinv12,rinvsq12,r12,qq12,c6_12,c12_12;
1270 __m128 dx20,dy20,dz20,rsq20,rinv20,rinvsq20,r20,qq20,c6_20,c12_20;
1271 __m128 dx21,dy21,dz21,rsq21,rinv21,rinvsq21,r21,qq21,c6_21,c12_21;
1272 __m128 dx22,dy22,dz22,rsq22,rinv22,rinvsq22,r22,qq22,c6_22,c12_22;
1273 __m128 velec,felec,velecsum,facel,crf,krf,krf2;
1276 __m128 ewtabscale,eweps,sh_ewald,ewrt,ewtabhalfspace,ewtabF,ewtabFn,ewtabD,ewtabV;
1278 __m128 dummy_mask,cutoff_mask;
1279 __m128 signbit = _mm_castsi128_ps( _mm_set1_epi32(0x80000000) );
1280 __m128 one = _mm_set1_ps(1.0);
1281 __m128 two = _mm_set1_ps(2.0);
1287 jindex = nlist->jindex;
1289 shiftidx = nlist->shift;
1291 shiftvec = fr->shift_vec[0];
1292 fshift = fr->fshift[0];
1293 facel = _mm_set1_ps(fr->epsfac);
1294 charge = mdatoms->chargeA;
1296 sh_ewald = _mm_set1_ps(fr->ic->sh_ewald);
1297 ewtab = fr->ic->tabq_coul_F;
1298 ewtabscale = _mm_set1_ps(fr->ic->tabq_scale);
1299 ewtabhalfspace = _mm_set1_ps(0.5/fr->ic->tabq_scale);
1301 /* Setup water-specific parameters */
1302 inr = nlist->iinr[0];
1303 iq0 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+0]));
1304 iq1 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+1]));
1305 iq2 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+2]));
1307 jq0 = _mm_set1_ps(charge[inr+0]);
1308 jq1 = _mm_set1_ps(charge[inr+1]);
1309 jq2 = _mm_set1_ps(charge[inr+2]);
1310 qq00 = _mm_mul_ps(iq0,jq0);
1311 qq01 = _mm_mul_ps(iq0,jq1);
1312 qq02 = _mm_mul_ps(iq0,jq2);
1313 qq10 = _mm_mul_ps(iq1,jq0);
1314 qq11 = _mm_mul_ps(iq1,jq1);
1315 qq12 = _mm_mul_ps(iq1,jq2);
1316 qq20 = _mm_mul_ps(iq2,jq0);
1317 qq21 = _mm_mul_ps(iq2,jq1);
1318 qq22 = _mm_mul_ps(iq2,jq2);
1320 /* Avoid stupid compiler warnings */
1321 jnrA = jnrB = jnrC = jnrD = 0;
1322 j_coord_offsetA = 0;
1323 j_coord_offsetB = 0;
1324 j_coord_offsetC = 0;
1325 j_coord_offsetD = 0;
1330 for(iidx=0;iidx<4*DIM;iidx++)
1332 scratch[iidx] = 0.0;
1335 /* Start outer loop over neighborlists */
1336 for(iidx=0; iidx<nri; iidx++)
1338 /* Load shift vector for this list */
1339 i_shift_offset = DIM*shiftidx[iidx];
1341 /* Load limits for loop over neighbors */
1342 j_index_start = jindex[iidx];
1343 j_index_end = jindex[iidx+1];
1345 /* Get outer coordinate index */
1347 i_coord_offset = DIM*inr;
1349 /* Load i particle coords and add shift vector */
1350 gmx_mm_load_shift_and_3rvec_broadcast_ps(shiftvec+i_shift_offset,x+i_coord_offset,
1351 &ix0,&iy0,&iz0,&ix1,&iy1,&iz1,&ix2,&iy2,&iz2);
1353 fix0 = _mm_setzero_ps();
1354 fiy0 = _mm_setzero_ps();
1355 fiz0 = _mm_setzero_ps();
1356 fix1 = _mm_setzero_ps();
1357 fiy1 = _mm_setzero_ps();
1358 fiz1 = _mm_setzero_ps();
1359 fix2 = _mm_setzero_ps();
1360 fiy2 = _mm_setzero_ps();
1361 fiz2 = _mm_setzero_ps();
1363 /* Start inner kernel loop */
1364 for(jidx=j_index_start; jidx<j_index_end && jjnr[jidx+3]>=0; jidx+=4)
1367 /* Get j neighbor index, and coordinate index */
1369 jnrB = jjnr[jidx+1];
1370 jnrC = jjnr[jidx+2];
1371 jnrD = jjnr[jidx+3];
1372 j_coord_offsetA = DIM*jnrA;
1373 j_coord_offsetB = DIM*jnrB;
1374 j_coord_offsetC = DIM*jnrC;
1375 j_coord_offsetD = DIM*jnrD;
1377 /* load j atom coordinates */
1378 gmx_mm_load_3rvec_4ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB,
1379 x+j_coord_offsetC,x+j_coord_offsetD,
1380 &jx0,&jy0,&jz0,&jx1,&jy1,&jz1,&jx2,&jy2,&jz2);
1382 /* Calculate displacement vector */
1383 dx00 = _mm_sub_ps(ix0,jx0);
1384 dy00 = _mm_sub_ps(iy0,jy0);
1385 dz00 = _mm_sub_ps(iz0,jz0);
1386 dx01 = _mm_sub_ps(ix0,jx1);
1387 dy01 = _mm_sub_ps(iy0,jy1);
1388 dz01 = _mm_sub_ps(iz0,jz1);
1389 dx02 = _mm_sub_ps(ix0,jx2);
1390 dy02 = _mm_sub_ps(iy0,jy2);
1391 dz02 = _mm_sub_ps(iz0,jz2);
1392 dx10 = _mm_sub_ps(ix1,jx0);
1393 dy10 = _mm_sub_ps(iy1,jy0);
1394 dz10 = _mm_sub_ps(iz1,jz0);
1395 dx11 = _mm_sub_ps(ix1,jx1);
1396 dy11 = _mm_sub_ps(iy1,jy1);
1397 dz11 = _mm_sub_ps(iz1,jz1);
1398 dx12 = _mm_sub_ps(ix1,jx2);
1399 dy12 = _mm_sub_ps(iy1,jy2);
1400 dz12 = _mm_sub_ps(iz1,jz2);
1401 dx20 = _mm_sub_ps(ix2,jx0);
1402 dy20 = _mm_sub_ps(iy2,jy0);
1403 dz20 = _mm_sub_ps(iz2,jz0);
1404 dx21 = _mm_sub_ps(ix2,jx1);
1405 dy21 = _mm_sub_ps(iy2,jy1);
1406 dz21 = _mm_sub_ps(iz2,jz1);
1407 dx22 = _mm_sub_ps(ix2,jx2);
1408 dy22 = _mm_sub_ps(iy2,jy2);
1409 dz22 = _mm_sub_ps(iz2,jz2);
1411 /* Calculate squared distance and things based on it */
1412 rsq00 = gmx_mm_calc_rsq_ps(dx00,dy00,dz00);
1413 rsq01 = gmx_mm_calc_rsq_ps(dx01,dy01,dz01);
1414 rsq02 = gmx_mm_calc_rsq_ps(dx02,dy02,dz02);
1415 rsq10 = gmx_mm_calc_rsq_ps(dx10,dy10,dz10);
1416 rsq11 = gmx_mm_calc_rsq_ps(dx11,dy11,dz11);
1417 rsq12 = gmx_mm_calc_rsq_ps(dx12,dy12,dz12);
1418 rsq20 = gmx_mm_calc_rsq_ps(dx20,dy20,dz20);
1419 rsq21 = gmx_mm_calc_rsq_ps(dx21,dy21,dz21);
1420 rsq22 = gmx_mm_calc_rsq_ps(dx22,dy22,dz22);
1422 rinv00 = gmx_mm_invsqrt_ps(rsq00);
1423 rinv01 = gmx_mm_invsqrt_ps(rsq01);
1424 rinv02 = gmx_mm_invsqrt_ps(rsq02);
1425 rinv10 = gmx_mm_invsqrt_ps(rsq10);
1426 rinv11 = gmx_mm_invsqrt_ps(rsq11);
1427 rinv12 = gmx_mm_invsqrt_ps(rsq12);
1428 rinv20 = gmx_mm_invsqrt_ps(rsq20);
1429 rinv21 = gmx_mm_invsqrt_ps(rsq21);
1430 rinv22 = gmx_mm_invsqrt_ps(rsq22);
1432 rinvsq00 = _mm_mul_ps(rinv00,rinv00);
1433 rinvsq01 = _mm_mul_ps(rinv01,rinv01);
1434 rinvsq02 = _mm_mul_ps(rinv02,rinv02);
1435 rinvsq10 = _mm_mul_ps(rinv10,rinv10);
1436 rinvsq11 = _mm_mul_ps(rinv11,rinv11);
1437 rinvsq12 = _mm_mul_ps(rinv12,rinv12);
1438 rinvsq20 = _mm_mul_ps(rinv20,rinv20);
1439 rinvsq21 = _mm_mul_ps(rinv21,rinv21);
1440 rinvsq22 = _mm_mul_ps(rinv22,rinv22);
1442 fjx0 = _mm_setzero_ps();
1443 fjy0 = _mm_setzero_ps();
1444 fjz0 = _mm_setzero_ps();
1445 fjx1 = _mm_setzero_ps();
1446 fjy1 = _mm_setzero_ps();
1447 fjz1 = _mm_setzero_ps();
1448 fjx2 = _mm_setzero_ps();
1449 fjy2 = _mm_setzero_ps();
1450 fjz2 = _mm_setzero_ps();
1452 /**************************
1453 * CALCULATE INTERACTIONS *
1454 **************************/
1456 r00 = _mm_mul_ps(rsq00,rinv00);
1458 /* EWALD ELECTROSTATICS */
1460 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1461 ewrt = _mm_mul_ps(r00,ewtabscale);
1462 ewitab = _mm_cvttps_epi32(ewrt);
1463 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1464 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
1465 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
1467 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
1468 felec = _mm_mul_ps(_mm_mul_ps(qq00,rinv00),_mm_sub_ps(rinvsq00,felec));
1472 /* Calculate temporary vectorial force */
1473 tx = _mm_mul_ps(fscal,dx00);
1474 ty = _mm_mul_ps(fscal,dy00);
1475 tz = _mm_mul_ps(fscal,dz00);
1477 /* Update vectorial force */
1478 fix0 = _mm_add_ps(fix0,tx);
1479 fiy0 = _mm_add_ps(fiy0,ty);
1480 fiz0 = _mm_add_ps(fiz0,tz);
1482 fjx0 = _mm_add_ps(fjx0,tx);
1483 fjy0 = _mm_add_ps(fjy0,ty);
1484 fjz0 = _mm_add_ps(fjz0,tz);
1486 /**************************
1487 * CALCULATE INTERACTIONS *
1488 **************************/
1490 r01 = _mm_mul_ps(rsq01,rinv01);
1492 /* EWALD ELECTROSTATICS */
1494 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1495 ewrt = _mm_mul_ps(r01,ewtabscale);
1496 ewitab = _mm_cvttps_epi32(ewrt);
1497 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1498 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
1499 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
1501 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
1502 felec = _mm_mul_ps(_mm_mul_ps(qq01,rinv01),_mm_sub_ps(rinvsq01,felec));
1506 /* Calculate temporary vectorial force */
1507 tx = _mm_mul_ps(fscal,dx01);
1508 ty = _mm_mul_ps(fscal,dy01);
1509 tz = _mm_mul_ps(fscal,dz01);
1511 /* Update vectorial force */
1512 fix0 = _mm_add_ps(fix0,tx);
1513 fiy0 = _mm_add_ps(fiy0,ty);
1514 fiz0 = _mm_add_ps(fiz0,tz);
1516 fjx1 = _mm_add_ps(fjx1,tx);
1517 fjy1 = _mm_add_ps(fjy1,ty);
1518 fjz1 = _mm_add_ps(fjz1,tz);
1520 /**************************
1521 * CALCULATE INTERACTIONS *
1522 **************************/
1524 r02 = _mm_mul_ps(rsq02,rinv02);
1526 /* EWALD ELECTROSTATICS */
1528 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1529 ewrt = _mm_mul_ps(r02,ewtabscale);
1530 ewitab = _mm_cvttps_epi32(ewrt);
1531 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1532 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
1533 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
1535 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
1536 felec = _mm_mul_ps(_mm_mul_ps(qq02,rinv02),_mm_sub_ps(rinvsq02,felec));
1540 /* Calculate temporary vectorial force */
1541 tx = _mm_mul_ps(fscal,dx02);
1542 ty = _mm_mul_ps(fscal,dy02);
1543 tz = _mm_mul_ps(fscal,dz02);
1545 /* Update vectorial force */
1546 fix0 = _mm_add_ps(fix0,tx);
1547 fiy0 = _mm_add_ps(fiy0,ty);
1548 fiz0 = _mm_add_ps(fiz0,tz);
1550 fjx2 = _mm_add_ps(fjx2,tx);
1551 fjy2 = _mm_add_ps(fjy2,ty);
1552 fjz2 = _mm_add_ps(fjz2,tz);
1554 /**************************
1555 * CALCULATE INTERACTIONS *
1556 **************************/
1558 r10 = _mm_mul_ps(rsq10,rinv10);
1560 /* EWALD ELECTROSTATICS */
1562 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1563 ewrt = _mm_mul_ps(r10,ewtabscale);
1564 ewitab = _mm_cvttps_epi32(ewrt);
1565 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1566 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
1567 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
1569 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
1570 felec = _mm_mul_ps(_mm_mul_ps(qq10,rinv10),_mm_sub_ps(rinvsq10,felec));
1574 /* Calculate temporary vectorial force */
1575 tx = _mm_mul_ps(fscal,dx10);
1576 ty = _mm_mul_ps(fscal,dy10);
1577 tz = _mm_mul_ps(fscal,dz10);
1579 /* Update vectorial force */
1580 fix1 = _mm_add_ps(fix1,tx);
1581 fiy1 = _mm_add_ps(fiy1,ty);
1582 fiz1 = _mm_add_ps(fiz1,tz);
1584 fjx0 = _mm_add_ps(fjx0,tx);
1585 fjy0 = _mm_add_ps(fjy0,ty);
1586 fjz0 = _mm_add_ps(fjz0,tz);
1588 /**************************
1589 * CALCULATE INTERACTIONS *
1590 **************************/
1592 r11 = _mm_mul_ps(rsq11,rinv11);
1594 /* EWALD ELECTROSTATICS */
1596 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1597 ewrt = _mm_mul_ps(r11,ewtabscale);
1598 ewitab = _mm_cvttps_epi32(ewrt);
1599 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1600 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
1601 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
1603 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
1604 felec = _mm_mul_ps(_mm_mul_ps(qq11,rinv11),_mm_sub_ps(rinvsq11,felec));
1608 /* Calculate temporary vectorial force */
1609 tx = _mm_mul_ps(fscal,dx11);
1610 ty = _mm_mul_ps(fscal,dy11);
1611 tz = _mm_mul_ps(fscal,dz11);
1613 /* Update vectorial force */
1614 fix1 = _mm_add_ps(fix1,tx);
1615 fiy1 = _mm_add_ps(fiy1,ty);
1616 fiz1 = _mm_add_ps(fiz1,tz);
1618 fjx1 = _mm_add_ps(fjx1,tx);
1619 fjy1 = _mm_add_ps(fjy1,ty);
1620 fjz1 = _mm_add_ps(fjz1,tz);
1622 /**************************
1623 * CALCULATE INTERACTIONS *
1624 **************************/
1626 r12 = _mm_mul_ps(rsq12,rinv12);
1628 /* EWALD ELECTROSTATICS */
1630 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1631 ewrt = _mm_mul_ps(r12,ewtabscale);
1632 ewitab = _mm_cvttps_epi32(ewrt);
1633 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1634 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
1635 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
1637 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
1638 felec = _mm_mul_ps(_mm_mul_ps(qq12,rinv12),_mm_sub_ps(rinvsq12,felec));
1642 /* Calculate temporary vectorial force */
1643 tx = _mm_mul_ps(fscal,dx12);
1644 ty = _mm_mul_ps(fscal,dy12);
1645 tz = _mm_mul_ps(fscal,dz12);
1647 /* Update vectorial force */
1648 fix1 = _mm_add_ps(fix1,tx);
1649 fiy1 = _mm_add_ps(fiy1,ty);
1650 fiz1 = _mm_add_ps(fiz1,tz);
1652 fjx2 = _mm_add_ps(fjx2,tx);
1653 fjy2 = _mm_add_ps(fjy2,ty);
1654 fjz2 = _mm_add_ps(fjz2,tz);
1656 /**************************
1657 * CALCULATE INTERACTIONS *
1658 **************************/
1660 r20 = _mm_mul_ps(rsq20,rinv20);
1662 /* EWALD ELECTROSTATICS */
1664 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1665 ewrt = _mm_mul_ps(r20,ewtabscale);
1666 ewitab = _mm_cvttps_epi32(ewrt);
1667 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1668 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
1669 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
1671 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
1672 felec = _mm_mul_ps(_mm_mul_ps(qq20,rinv20),_mm_sub_ps(rinvsq20,felec));
1676 /* Calculate temporary vectorial force */
1677 tx = _mm_mul_ps(fscal,dx20);
1678 ty = _mm_mul_ps(fscal,dy20);
1679 tz = _mm_mul_ps(fscal,dz20);
1681 /* Update vectorial force */
1682 fix2 = _mm_add_ps(fix2,tx);
1683 fiy2 = _mm_add_ps(fiy2,ty);
1684 fiz2 = _mm_add_ps(fiz2,tz);
1686 fjx0 = _mm_add_ps(fjx0,tx);
1687 fjy0 = _mm_add_ps(fjy0,ty);
1688 fjz0 = _mm_add_ps(fjz0,tz);
1690 /**************************
1691 * CALCULATE INTERACTIONS *
1692 **************************/
1694 r21 = _mm_mul_ps(rsq21,rinv21);
1696 /* EWALD ELECTROSTATICS */
1698 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1699 ewrt = _mm_mul_ps(r21,ewtabscale);
1700 ewitab = _mm_cvttps_epi32(ewrt);
1701 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1702 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
1703 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
1705 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
1706 felec = _mm_mul_ps(_mm_mul_ps(qq21,rinv21),_mm_sub_ps(rinvsq21,felec));
1710 /* Calculate temporary vectorial force */
1711 tx = _mm_mul_ps(fscal,dx21);
1712 ty = _mm_mul_ps(fscal,dy21);
1713 tz = _mm_mul_ps(fscal,dz21);
1715 /* Update vectorial force */
1716 fix2 = _mm_add_ps(fix2,tx);
1717 fiy2 = _mm_add_ps(fiy2,ty);
1718 fiz2 = _mm_add_ps(fiz2,tz);
1720 fjx1 = _mm_add_ps(fjx1,tx);
1721 fjy1 = _mm_add_ps(fjy1,ty);
1722 fjz1 = _mm_add_ps(fjz1,tz);
1724 /**************************
1725 * CALCULATE INTERACTIONS *
1726 **************************/
1728 r22 = _mm_mul_ps(rsq22,rinv22);
1730 /* EWALD ELECTROSTATICS */
1732 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1733 ewrt = _mm_mul_ps(r22,ewtabscale);
1734 ewitab = _mm_cvttps_epi32(ewrt);
1735 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1736 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
1737 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
1739 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
1740 felec = _mm_mul_ps(_mm_mul_ps(qq22,rinv22),_mm_sub_ps(rinvsq22,felec));
1744 /* Calculate temporary vectorial force */
1745 tx = _mm_mul_ps(fscal,dx22);
1746 ty = _mm_mul_ps(fscal,dy22);
1747 tz = _mm_mul_ps(fscal,dz22);
1749 /* Update vectorial force */
1750 fix2 = _mm_add_ps(fix2,tx);
1751 fiy2 = _mm_add_ps(fiy2,ty);
1752 fiz2 = _mm_add_ps(fiz2,tz);
1754 fjx2 = _mm_add_ps(fjx2,tx);
1755 fjy2 = _mm_add_ps(fjy2,ty);
1756 fjz2 = _mm_add_ps(fjz2,tz);
1758 fjptrA = f+j_coord_offsetA;
1759 fjptrB = f+j_coord_offsetB;
1760 fjptrC = f+j_coord_offsetC;
1761 fjptrD = f+j_coord_offsetD;
1763 gmx_mm_decrement_3rvec_4ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,
1764 fjx0,fjy0,fjz0,fjx1,fjy1,fjz1,fjx2,fjy2,fjz2);
1766 /* Inner loop uses 324 flops */
1769 if(jidx<j_index_end)
1772 /* Get j neighbor index, and coordinate index */
1773 jnrlistA = jjnr[jidx];
1774 jnrlistB = jjnr[jidx+1];
1775 jnrlistC = jjnr[jidx+2];
1776 jnrlistD = jjnr[jidx+3];
1777 /* Sign of each element will be negative for non-real atoms.
1778 * This mask will be 0xFFFFFFFF for dummy entries and 0x0 for real ones,
1779 * so use it as val = _mm_andnot_ps(mask,val) to clear dummy entries.
1781 dummy_mask = gmx_mm_castsi128_ps(_mm_cmplt_epi32(_mm_loadu_si128((const __m128i *)(jjnr+jidx)),_mm_setzero_si128()));
1782 jnrA = (jnrlistA>=0) ? jnrlistA : 0;
1783 jnrB = (jnrlistB>=0) ? jnrlistB : 0;
1784 jnrC = (jnrlistC>=0) ? jnrlistC : 0;
1785 jnrD = (jnrlistD>=0) ? jnrlistD : 0;
1786 j_coord_offsetA = DIM*jnrA;
1787 j_coord_offsetB = DIM*jnrB;
1788 j_coord_offsetC = DIM*jnrC;
1789 j_coord_offsetD = DIM*jnrD;
1791 /* load j atom coordinates */
1792 gmx_mm_load_3rvec_4ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB,
1793 x+j_coord_offsetC,x+j_coord_offsetD,
1794 &jx0,&jy0,&jz0,&jx1,&jy1,&jz1,&jx2,&jy2,&jz2);
1796 /* Calculate displacement vector */
1797 dx00 = _mm_sub_ps(ix0,jx0);
1798 dy00 = _mm_sub_ps(iy0,jy0);
1799 dz00 = _mm_sub_ps(iz0,jz0);
1800 dx01 = _mm_sub_ps(ix0,jx1);
1801 dy01 = _mm_sub_ps(iy0,jy1);
1802 dz01 = _mm_sub_ps(iz0,jz1);
1803 dx02 = _mm_sub_ps(ix0,jx2);
1804 dy02 = _mm_sub_ps(iy0,jy2);
1805 dz02 = _mm_sub_ps(iz0,jz2);
1806 dx10 = _mm_sub_ps(ix1,jx0);
1807 dy10 = _mm_sub_ps(iy1,jy0);
1808 dz10 = _mm_sub_ps(iz1,jz0);
1809 dx11 = _mm_sub_ps(ix1,jx1);
1810 dy11 = _mm_sub_ps(iy1,jy1);
1811 dz11 = _mm_sub_ps(iz1,jz1);
1812 dx12 = _mm_sub_ps(ix1,jx2);
1813 dy12 = _mm_sub_ps(iy1,jy2);
1814 dz12 = _mm_sub_ps(iz1,jz2);
1815 dx20 = _mm_sub_ps(ix2,jx0);
1816 dy20 = _mm_sub_ps(iy2,jy0);
1817 dz20 = _mm_sub_ps(iz2,jz0);
1818 dx21 = _mm_sub_ps(ix2,jx1);
1819 dy21 = _mm_sub_ps(iy2,jy1);
1820 dz21 = _mm_sub_ps(iz2,jz1);
1821 dx22 = _mm_sub_ps(ix2,jx2);
1822 dy22 = _mm_sub_ps(iy2,jy2);
1823 dz22 = _mm_sub_ps(iz2,jz2);
1825 /* Calculate squared distance and things based on it */
1826 rsq00 = gmx_mm_calc_rsq_ps(dx00,dy00,dz00);
1827 rsq01 = gmx_mm_calc_rsq_ps(dx01,dy01,dz01);
1828 rsq02 = gmx_mm_calc_rsq_ps(dx02,dy02,dz02);
1829 rsq10 = gmx_mm_calc_rsq_ps(dx10,dy10,dz10);
1830 rsq11 = gmx_mm_calc_rsq_ps(dx11,dy11,dz11);
1831 rsq12 = gmx_mm_calc_rsq_ps(dx12,dy12,dz12);
1832 rsq20 = gmx_mm_calc_rsq_ps(dx20,dy20,dz20);
1833 rsq21 = gmx_mm_calc_rsq_ps(dx21,dy21,dz21);
1834 rsq22 = gmx_mm_calc_rsq_ps(dx22,dy22,dz22);
1836 rinv00 = gmx_mm_invsqrt_ps(rsq00);
1837 rinv01 = gmx_mm_invsqrt_ps(rsq01);
1838 rinv02 = gmx_mm_invsqrt_ps(rsq02);
1839 rinv10 = gmx_mm_invsqrt_ps(rsq10);
1840 rinv11 = gmx_mm_invsqrt_ps(rsq11);
1841 rinv12 = gmx_mm_invsqrt_ps(rsq12);
1842 rinv20 = gmx_mm_invsqrt_ps(rsq20);
1843 rinv21 = gmx_mm_invsqrt_ps(rsq21);
1844 rinv22 = gmx_mm_invsqrt_ps(rsq22);
1846 rinvsq00 = _mm_mul_ps(rinv00,rinv00);
1847 rinvsq01 = _mm_mul_ps(rinv01,rinv01);
1848 rinvsq02 = _mm_mul_ps(rinv02,rinv02);
1849 rinvsq10 = _mm_mul_ps(rinv10,rinv10);
1850 rinvsq11 = _mm_mul_ps(rinv11,rinv11);
1851 rinvsq12 = _mm_mul_ps(rinv12,rinv12);
1852 rinvsq20 = _mm_mul_ps(rinv20,rinv20);
1853 rinvsq21 = _mm_mul_ps(rinv21,rinv21);
1854 rinvsq22 = _mm_mul_ps(rinv22,rinv22);
1856 fjx0 = _mm_setzero_ps();
1857 fjy0 = _mm_setzero_ps();
1858 fjz0 = _mm_setzero_ps();
1859 fjx1 = _mm_setzero_ps();
1860 fjy1 = _mm_setzero_ps();
1861 fjz1 = _mm_setzero_ps();
1862 fjx2 = _mm_setzero_ps();
1863 fjy2 = _mm_setzero_ps();
1864 fjz2 = _mm_setzero_ps();
1866 /**************************
1867 * CALCULATE INTERACTIONS *
1868 **************************/
1870 r00 = _mm_mul_ps(rsq00,rinv00);
1871 r00 = _mm_andnot_ps(dummy_mask,r00);
1873 /* EWALD ELECTROSTATICS */
1875 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1876 ewrt = _mm_mul_ps(r00,ewtabscale);
1877 ewitab = _mm_cvttps_epi32(ewrt);
1878 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1879 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
1880 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
1882 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
1883 felec = _mm_mul_ps(_mm_mul_ps(qq00,rinv00),_mm_sub_ps(rinvsq00,felec));
1887 fscal = _mm_andnot_ps(dummy_mask,fscal);
1889 /* Calculate temporary vectorial force */
1890 tx = _mm_mul_ps(fscal,dx00);
1891 ty = _mm_mul_ps(fscal,dy00);
1892 tz = _mm_mul_ps(fscal,dz00);
1894 /* Update vectorial force */
1895 fix0 = _mm_add_ps(fix0,tx);
1896 fiy0 = _mm_add_ps(fiy0,ty);
1897 fiz0 = _mm_add_ps(fiz0,tz);
1899 fjx0 = _mm_add_ps(fjx0,tx);
1900 fjy0 = _mm_add_ps(fjy0,ty);
1901 fjz0 = _mm_add_ps(fjz0,tz);
1903 /**************************
1904 * CALCULATE INTERACTIONS *
1905 **************************/
1907 r01 = _mm_mul_ps(rsq01,rinv01);
1908 r01 = _mm_andnot_ps(dummy_mask,r01);
1910 /* EWALD ELECTROSTATICS */
1912 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1913 ewrt = _mm_mul_ps(r01,ewtabscale);
1914 ewitab = _mm_cvttps_epi32(ewrt);
1915 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1916 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
1917 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
1919 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
1920 felec = _mm_mul_ps(_mm_mul_ps(qq01,rinv01),_mm_sub_ps(rinvsq01,felec));
1924 fscal = _mm_andnot_ps(dummy_mask,fscal);
1926 /* Calculate temporary vectorial force */
1927 tx = _mm_mul_ps(fscal,dx01);
1928 ty = _mm_mul_ps(fscal,dy01);
1929 tz = _mm_mul_ps(fscal,dz01);
1931 /* Update vectorial force */
1932 fix0 = _mm_add_ps(fix0,tx);
1933 fiy0 = _mm_add_ps(fiy0,ty);
1934 fiz0 = _mm_add_ps(fiz0,tz);
1936 fjx1 = _mm_add_ps(fjx1,tx);
1937 fjy1 = _mm_add_ps(fjy1,ty);
1938 fjz1 = _mm_add_ps(fjz1,tz);
1940 /**************************
1941 * CALCULATE INTERACTIONS *
1942 **************************/
1944 r02 = _mm_mul_ps(rsq02,rinv02);
1945 r02 = _mm_andnot_ps(dummy_mask,r02);
1947 /* EWALD ELECTROSTATICS */
1949 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1950 ewrt = _mm_mul_ps(r02,ewtabscale);
1951 ewitab = _mm_cvttps_epi32(ewrt);
1952 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1953 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
1954 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
1956 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
1957 felec = _mm_mul_ps(_mm_mul_ps(qq02,rinv02),_mm_sub_ps(rinvsq02,felec));
1961 fscal = _mm_andnot_ps(dummy_mask,fscal);
1963 /* Calculate temporary vectorial force */
1964 tx = _mm_mul_ps(fscal,dx02);
1965 ty = _mm_mul_ps(fscal,dy02);
1966 tz = _mm_mul_ps(fscal,dz02);
1968 /* Update vectorial force */
1969 fix0 = _mm_add_ps(fix0,tx);
1970 fiy0 = _mm_add_ps(fiy0,ty);
1971 fiz0 = _mm_add_ps(fiz0,tz);
1973 fjx2 = _mm_add_ps(fjx2,tx);
1974 fjy2 = _mm_add_ps(fjy2,ty);
1975 fjz2 = _mm_add_ps(fjz2,tz);
1977 /**************************
1978 * CALCULATE INTERACTIONS *
1979 **************************/
1981 r10 = _mm_mul_ps(rsq10,rinv10);
1982 r10 = _mm_andnot_ps(dummy_mask,r10);
1984 /* EWALD ELECTROSTATICS */
1986 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
1987 ewrt = _mm_mul_ps(r10,ewtabscale);
1988 ewitab = _mm_cvttps_epi32(ewrt);
1989 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
1990 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
1991 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
1993 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
1994 felec = _mm_mul_ps(_mm_mul_ps(qq10,rinv10),_mm_sub_ps(rinvsq10,felec));
1998 fscal = _mm_andnot_ps(dummy_mask,fscal);
2000 /* Calculate temporary vectorial force */
2001 tx = _mm_mul_ps(fscal,dx10);
2002 ty = _mm_mul_ps(fscal,dy10);
2003 tz = _mm_mul_ps(fscal,dz10);
2005 /* Update vectorial force */
2006 fix1 = _mm_add_ps(fix1,tx);
2007 fiy1 = _mm_add_ps(fiy1,ty);
2008 fiz1 = _mm_add_ps(fiz1,tz);
2010 fjx0 = _mm_add_ps(fjx0,tx);
2011 fjy0 = _mm_add_ps(fjy0,ty);
2012 fjz0 = _mm_add_ps(fjz0,tz);
2014 /**************************
2015 * CALCULATE INTERACTIONS *
2016 **************************/
2018 r11 = _mm_mul_ps(rsq11,rinv11);
2019 r11 = _mm_andnot_ps(dummy_mask,r11);
2021 /* EWALD ELECTROSTATICS */
2023 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
2024 ewrt = _mm_mul_ps(r11,ewtabscale);
2025 ewitab = _mm_cvttps_epi32(ewrt);
2026 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
2027 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
2028 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
2030 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
2031 felec = _mm_mul_ps(_mm_mul_ps(qq11,rinv11),_mm_sub_ps(rinvsq11,felec));
2035 fscal = _mm_andnot_ps(dummy_mask,fscal);
2037 /* Calculate temporary vectorial force */
2038 tx = _mm_mul_ps(fscal,dx11);
2039 ty = _mm_mul_ps(fscal,dy11);
2040 tz = _mm_mul_ps(fscal,dz11);
2042 /* Update vectorial force */
2043 fix1 = _mm_add_ps(fix1,tx);
2044 fiy1 = _mm_add_ps(fiy1,ty);
2045 fiz1 = _mm_add_ps(fiz1,tz);
2047 fjx1 = _mm_add_ps(fjx1,tx);
2048 fjy1 = _mm_add_ps(fjy1,ty);
2049 fjz1 = _mm_add_ps(fjz1,tz);
2051 /**************************
2052 * CALCULATE INTERACTIONS *
2053 **************************/
2055 r12 = _mm_mul_ps(rsq12,rinv12);
2056 r12 = _mm_andnot_ps(dummy_mask,r12);
2058 /* EWALD ELECTROSTATICS */
2060 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
2061 ewrt = _mm_mul_ps(r12,ewtabscale);
2062 ewitab = _mm_cvttps_epi32(ewrt);
2063 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
2064 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
2065 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
2067 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
2068 felec = _mm_mul_ps(_mm_mul_ps(qq12,rinv12),_mm_sub_ps(rinvsq12,felec));
2072 fscal = _mm_andnot_ps(dummy_mask,fscal);
2074 /* Calculate temporary vectorial force */
2075 tx = _mm_mul_ps(fscal,dx12);
2076 ty = _mm_mul_ps(fscal,dy12);
2077 tz = _mm_mul_ps(fscal,dz12);
2079 /* Update vectorial force */
2080 fix1 = _mm_add_ps(fix1,tx);
2081 fiy1 = _mm_add_ps(fiy1,ty);
2082 fiz1 = _mm_add_ps(fiz1,tz);
2084 fjx2 = _mm_add_ps(fjx2,tx);
2085 fjy2 = _mm_add_ps(fjy2,ty);
2086 fjz2 = _mm_add_ps(fjz2,tz);
2088 /**************************
2089 * CALCULATE INTERACTIONS *
2090 **************************/
2092 r20 = _mm_mul_ps(rsq20,rinv20);
2093 r20 = _mm_andnot_ps(dummy_mask,r20);
2095 /* EWALD ELECTROSTATICS */
2097 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
2098 ewrt = _mm_mul_ps(r20,ewtabscale);
2099 ewitab = _mm_cvttps_epi32(ewrt);
2100 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
2101 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
2102 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
2104 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
2105 felec = _mm_mul_ps(_mm_mul_ps(qq20,rinv20),_mm_sub_ps(rinvsq20,felec));
2109 fscal = _mm_andnot_ps(dummy_mask,fscal);
2111 /* Calculate temporary vectorial force */
2112 tx = _mm_mul_ps(fscal,dx20);
2113 ty = _mm_mul_ps(fscal,dy20);
2114 tz = _mm_mul_ps(fscal,dz20);
2116 /* Update vectorial force */
2117 fix2 = _mm_add_ps(fix2,tx);
2118 fiy2 = _mm_add_ps(fiy2,ty);
2119 fiz2 = _mm_add_ps(fiz2,tz);
2121 fjx0 = _mm_add_ps(fjx0,tx);
2122 fjy0 = _mm_add_ps(fjy0,ty);
2123 fjz0 = _mm_add_ps(fjz0,tz);
2125 /**************************
2126 * CALCULATE INTERACTIONS *
2127 **************************/
2129 r21 = _mm_mul_ps(rsq21,rinv21);
2130 r21 = _mm_andnot_ps(dummy_mask,r21);
2132 /* EWALD ELECTROSTATICS */
2134 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
2135 ewrt = _mm_mul_ps(r21,ewtabscale);
2136 ewitab = _mm_cvttps_epi32(ewrt);
2137 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
2138 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
2139 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
2141 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
2142 felec = _mm_mul_ps(_mm_mul_ps(qq21,rinv21),_mm_sub_ps(rinvsq21,felec));
2146 fscal = _mm_andnot_ps(dummy_mask,fscal);
2148 /* Calculate temporary vectorial force */
2149 tx = _mm_mul_ps(fscal,dx21);
2150 ty = _mm_mul_ps(fscal,dy21);
2151 tz = _mm_mul_ps(fscal,dz21);
2153 /* Update vectorial force */
2154 fix2 = _mm_add_ps(fix2,tx);
2155 fiy2 = _mm_add_ps(fiy2,ty);
2156 fiz2 = _mm_add_ps(fiz2,tz);
2158 fjx1 = _mm_add_ps(fjx1,tx);
2159 fjy1 = _mm_add_ps(fjy1,ty);
2160 fjz1 = _mm_add_ps(fjz1,tz);
2162 /**************************
2163 * CALCULATE INTERACTIONS *
2164 **************************/
2166 r22 = _mm_mul_ps(rsq22,rinv22);
2167 r22 = _mm_andnot_ps(dummy_mask,r22);
2169 /* EWALD ELECTROSTATICS */
2171 /* Calculate Ewald table index by multiplying r with scale and truncate to integer */
2172 ewrt = _mm_mul_ps(r22,ewtabscale);
2173 ewitab = _mm_cvttps_epi32(ewrt);
2174 eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR));
2175 gmx_mm_load_4pair_swizzle_ps(ewtab + gmx_mm_extract_epi32(ewitab,0),ewtab + gmx_mm_extract_epi32(ewitab,1),
2176 ewtab + gmx_mm_extract_epi32(ewitab,2),ewtab + gmx_mm_extract_epi32(ewitab,3),
2178 felec = _mm_add_ps(_mm_mul_ps( _mm_sub_ps(one,eweps),ewtabF),_mm_mul_ps(eweps,ewtabFn));
2179 felec = _mm_mul_ps(_mm_mul_ps(qq22,rinv22),_mm_sub_ps(rinvsq22,felec));
2183 fscal = _mm_andnot_ps(dummy_mask,fscal);
2185 /* Calculate temporary vectorial force */
2186 tx = _mm_mul_ps(fscal,dx22);
2187 ty = _mm_mul_ps(fscal,dy22);
2188 tz = _mm_mul_ps(fscal,dz22);
2190 /* Update vectorial force */
2191 fix2 = _mm_add_ps(fix2,tx);
2192 fiy2 = _mm_add_ps(fiy2,ty);
2193 fiz2 = _mm_add_ps(fiz2,tz);
2195 fjx2 = _mm_add_ps(fjx2,tx);
2196 fjy2 = _mm_add_ps(fjy2,ty);
2197 fjz2 = _mm_add_ps(fjz2,tz);
2199 fjptrA = (jnrlistA>=0) ? f+j_coord_offsetA : scratch;
2200 fjptrB = (jnrlistB>=0) ? f+j_coord_offsetB : scratch;
2201 fjptrC = (jnrlistC>=0) ? f+j_coord_offsetC : scratch;
2202 fjptrD = (jnrlistD>=0) ? f+j_coord_offsetD : scratch;
2204 gmx_mm_decrement_3rvec_4ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,
2205 fjx0,fjy0,fjz0,fjx1,fjy1,fjz1,fjx2,fjy2,fjz2);
2207 /* Inner loop uses 333 flops */
2210 /* End of innermost loop */
2212 gmx_mm_update_iforce_3atom_swizzle_ps(fix0,fiy0,fiz0,fix1,fiy1,fiz1,fix2,fiy2,fiz2,
2213 f+i_coord_offset,fshift+i_shift_offset);
2215 /* Increment number of inner iterations */
2216 inneriter += j_index_end - j_index_start;
2218 /* Outer loop uses 18 flops */
2221 /* Increment number of outer iterations */
2224 /* Update outer/inner flops */
2226 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_W3W3_F,outeriter*18 + inneriter*333);