2 * Note: this file was generated by the Gromacs sse2_single kernel generator.
4 * This source code is part of
8 * Copyright (c) 2001-2012, The GROMACS Development Team
10 * Gromacs is a library for molecular simulation and trajectory analysis,
11 * written by Erik Lindahl, David van der Spoel, Berk Hess, and others - for
12 * a full list of developers and information, check out http://www.gromacs.org
14 * This program is free software; you can redistribute it and/or modify it under
15 * the terms of the GNU Lesser General Public License as published by the Free
16 * Software Foundation; either version 2 of the License, or (at your option) any
19 * To help fund GROMACS development, we humbly ask that you cite
20 * the papers people have written on it - you can find them on the website.
28 #include "../nb_kernel.h"
29 #include "types/simple.h"
33 #include "gmx_math_x86_sse2_single.h"
34 #include "kernelutil_x86_sse2_single.h"
37 * Gromacs nonbonded kernel: nb_kernel_ElecRF_VdwNone_GeomW3W3_VF_sse2_single
38 * Electrostatics interaction: ReactionField
39 * VdW interaction: None
40 * Geometry: Water3-Water3
41 * Calculate force/pot: PotentialAndForce
44 nb_kernel_ElecRF_VdwNone_GeomW3W3_VF_sse2_single
45 (t_nblist * gmx_restrict nlist,
46 rvec * gmx_restrict xx,
47 rvec * gmx_restrict ff,
48 t_forcerec * gmx_restrict fr,
49 t_mdatoms * gmx_restrict mdatoms,
50 nb_kernel_data_t * gmx_restrict kernel_data,
51 t_nrnb * gmx_restrict nrnb)
53 /* Suffixes 0,1,2,3 refer to particle indices for waters in the inner or outer loop, or
54 * just 0 for non-waters.
55 * Suffixes A,B,C,D refer to j loop unrolling done with SSE, e.g. for the four different
56 * jnr indices corresponding to data put in the four positions in the SIMD register.
58 int i_shift_offset,i_coord_offset,outeriter,inneriter;
59 int j_index_start,j_index_end,jidx,nri,inr,ggid,iidx;
60 int jnrA,jnrB,jnrC,jnrD;
61 int j_coord_offsetA,j_coord_offsetB,j_coord_offsetC,j_coord_offsetD;
62 int *iinr,*jindex,*jjnr,*shiftidx,*gid;
63 real shX,shY,shZ,rcutoff_scalar;
64 real *shiftvec,*fshift,*x,*f;
65 __m128 tx,ty,tz,fscal,rcutoff,rcutoff2,jidxall;
67 __m128 ix0,iy0,iz0,fix0,fiy0,fiz0,iq0,isai0;
69 __m128 ix1,iy1,iz1,fix1,fiy1,fiz1,iq1,isai1;
71 __m128 ix2,iy2,iz2,fix2,fiy2,fiz2,iq2,isai2;
72 int vdwjidx0A,vdwjidx0B,vdwjidx0C,vdwjidx0D;
73 __m128 jx0,jy0,jz0,fjx0,fjy0,fjz0,jq0,isaj0;
74 int vdwjidx1A,vdwjidx1B,vdwjidx1C,vdwjidx1D;
75 __m128 jx1,jy1,jz1,fjx1,fjy1,fjz1,jq1,isaj1;
76 int vdwjidx2A,vdwjidx2B,vdwjidx2C,vdwjidx2D;
77 __m128 jx2,jy2,jz2,fjx2,fjy2,fjz2,jq2,isaj2;
78 __m128 dx00,dy00,dz00,rsq00,rinv00,rinvsq00,r00,qq00,c6_00,c12_00;
79 __m128 dx01,dy01,dz01,rsq01,rinv01,rinvsq01,r01,qq01,c6_01,c12_01;
80 __m128 dx02,dy02,dz02,rsq02,rinv02,rinvsq02,r02,qq02,c6_02,c12_02;
81 __m128 dx10,dy10,dz10,rsq10,rinv10,rinvsq10,r10,qq10,c6_10,c12_10;
82 __m128 dx11,dy11,dz11,rsq11,rinv11,rinvsq11,r11,qq11,c6_11,c12_11;
83 __m128 dx12,dy12,dz12,rsq12,rinv12,rinvsq12,r12,qq12,c6_12,c12_12;
84 __m128 dx20,dy20,dz20,rsq20,rinv20,rinvsq20,r20,qq20,c6_20,c12_20;
85 __m128 dx21,dy21,dz21,rsq21,rinv21,rinvsq21,r21,qq21,c6_21,c12_21;
86 __m128 dx22,dy22,dz22,rsq22,rinv22,rinvsq22,r22,qq22,c6_22,c12_22;
87 __m128 velec,felec,velecsum,facel,crf,krf,krf2;
89 __m128 dummy_mask,cutoff_mask;
90 __m128 signbit = _mm_castsi128_ps( _mm_set1_epi32(0x80000000) );
91 __m128 one = _mm_set1_ps(1.0);
92 __m128 two = _mm_set1_ps(2.0);
98 jindex = nlist->jindex;
100 shiftidx = nlist->shift;
102 shiftvec = fr->shift_vec[0];
103 fshift = fr->fshift[0];
104 facel = _mm_set1_ps(fr->epsfac);
105 charge = mdatoms->chargeA;
106 krf = _mm_set1_ps(fr->ic->k_rf);
107 krf2 = _mm_set1_ps(fr->ic->k_rf*2.0);
108 crf = _mm_set1_ps(fr->ic->c_rf);
110 /* Setup water-specific parameters */
111 inr = nlist->iinr[0];
112 iq0 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+0]));
113 iq1 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+1]));
114 iq2 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+2]));
116 jq0 = _mm_set1_ps(charge[inr+0]);
117 jq1 = _mm_set1_ps(charge[inr+1]);
118 jq2 = _mm_set1_ps(charge[inr+2]);
119 qq00 = _mm_mul_ps(iq0,jq0);
120 qq01 = _mm_mul_ps(iq0,jq1);
121 qq02 = _mm_mul_ps(iq0,jq2);
122 qq10 = _mm_mul_ps(iq1,jq0);
123 qq11 = _mm_mul_ps(iq1,jq1);
124 qq12 = _mm_mul_ps(iq1,jq2);
125 qq20 = _mm_mul_ps(iq2,jq0);
126 qq21 = _mm_mul_ps(iq2,jq1);
127 qq22 = _mm_mul_ps(iq2,jq2);
129 /* Avoid stupid compiler warnings */
130 jnrA = jnrB = jnrC = jnrD = 0;
139 /* Start outer loop over neighborlists */
140 for(iidx=0; iidx<nri; iidx++)
142 /* Load shift vector for this list */
143 i_shift_offset = DIM*shiftidx[iidx];
144 shX = shiftvec[i_shift_offset+XX];
145 shY = shiftvec[i_shift_offset+YY];
146 shZ = shiftvec[i_shift_offset+ZZ];
148 /* Load limits for loop over neighbors */
149 j_index_start = jindex[iidx];
150 j_index_end = jindex[iidx+1];
152 /* Get outer coordinate index */
154 i_coord_offset = DIM*inr;
156 /* Load i particle coords and add shift vector */
157 ix0 = _mm_set1_ps(shX + x[i_coord_offset+DIM*0+XX]);
158 iy0 = _mm_set1_ps(shY + x[i_coord_offset+DIM*0+YY]);
159 iz0 = _mm_set1_ps(shZ + x[i_coord_offset+DIM*0+ZZ]);
160 ix1 = _mm_set1_ps(shX + x[i_coord_offset+DIM*1+XX]);
161 iy1 = _mm_set1_ps(shY + x[i_coord_offset+DIM*1+YY]);
162 iz1 = _mm_set1_ps(shZ + x[i_coord_offset+DIM*1+ZZ]);
163 ix2 = _mm_set1_ps(shX + x[i_coord_offset+DIM*2+XX]);
164 iy2 = _mm_set1_ps(shY + x[i_coord_offset+DIM*2+YY]);
165 iz2 = _mm_set1_ps(shZ + x[i_coord_offset+DIM*2+ZZ]);
167 fix0 = _mm_setzero_ps();
168 fiy0 = _mm_setzero_ps();
169 fiz0 = _mm_setzero_ps();
170 fix1 = _mm_setzero_ps();
171 fiy1 = _mm_setzero_ps();
172 fiz1 = _mm_setzero_ps();
173 fix2 = _mm_setzero_ps();
174 fiy2 = _mm_setzero_ps();
175 fiz2 = _mm_setzero_ps();
177 /* Reset potential sums */
178 velecsum = _mm_setzero_ps();
180 /* Start inner kernel loop */
181 for(jidx=j_index_start; jidx<j_index_end && jjnr[jidx+3]>=0; jidx+=4)
184 /* Get j neighbor index, and coordinate index */
190 j_coord_offsetA = DIM*jnrA;
191 j_coord_offsetB = DIM*jnrB;
192 j_coord_offsetC = DIM*jnrC;
193 j_coord_offsetD = DIM*jnrD;
195 /* load j atom coordinates */
196 gmx_mm_load_3rvec_4ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB,
197 x+j_coord_offsetC,x+j_coord_offsetD,
198 &jx0,&jy0,&jz0,&jx1,&jy1,&jz1,&jx2,&jy2,&jz2);
200 /* Calculate displacement vector */
201 dx00 = _mm_sub_ps(ix0,jx0);
202 dy00 = _mm_sub_ps(iy0,jy0);
203 dz00 = _mm_sub_ps(iz0,jz0);
204 dx01 = _mm_sub_ps(ix0,jx1);
205 dy01 = _mm_sub_ps(iy0,jy1);
206 dz01 = _mm_sub_ps(iz0,jz1);
207 dx02 = _mm_sub_ps(ix0,jx2);
208 dy02 = _mm_sub_ps(iy0,jy2);
209 dz02 = _mm_sub_ps(iz0,jz2);
210 dx10 = _mm_sub_ps(ix1,jx0);
211 dy10 = _mm_sub_ps(iy1,jy0);
212 dz10 = _mm_sub_ps(iz1,jz0);
213 dx11 = _mm_sub_ps(ix1,jx1);
214 dy11 = _mm_sub_ps(iy1,jy1);
215 dz11 = _mm_sub_ps(iz1,jz1);
216 dx12 = _mm_sub_ps(ix1,jx2);
217 dy12 = _mm_sub_ps(iy1,jy2);
218 dz12 = _mm_sub_ps(iz1,jz2);
219 dx20 = _mm_sub_ps(ix2,jx0);
220 dy20 = _mm_sub_ps(iy2,jy0);
221 dz20 = _mm_sub_ps(iz2,jz0);
222 dx21 = _mm_sub_ps(ix2,jx1);
223 dy21 = _mm_sub_ps(iy2,jy1);
224 dz21 = _mm_sub_ps(iz2,jz1);
225 dx22 = _mm_sub_ps(ix2,jx2);
226 dy22 = _mm_sub_ps(iy2,jy2);
227 dz22 = _mm_sub_ps(iz2,jz2);
229 /* Calculate squared distance and things based on it */
230 rsq00 = gmx_mm_calc_rsq_ps(dx00,dy00,dz00);
231 rsq01 = gmx_mm_calc_rsq_ps(dx01,dy01,dz01);
232 rsq02 = gmx_mm_calc_rsq_ps(dx02,dy02,dz02);
233 rsq10 = gmx_mm_calc_rsq_ps(dx10,dy10,dz10);
234 rsq11 = gmx_mm_calc_rsq_ps(dx11,dy11,dz11);
235 rsq12 = gmx_mm_calc_rsq_ps(dx12,dy12,dz12);
236 rsq20 = gmx_mm_calc_rsq_ps(dx20,dy20,dz20);
237 rsq21 = gmx_mm_calc_rsq_ps(dx21,dy21,dz21);
238 rsq22 = gmx_mm_calc_rsq_ps(dx22,dy22,dz22);
240 rinv00 = gmx_mm_invsqrt_ps(rsq00);
241 rinv01 = gmx_mm_invsqrt_ps(rsq01);
242 rinv02 = gmx_mm_invsqrt_ps(rsq02);
243 rinv10 = gmx_mm_invsqrt_ps(rsq10);
244 rinv11 = gmx_mm_invsqrt_ps(rsq11);
245 rinv12 = gmx_mm_invsqrt_ps(rsq12);
246 rinv20 = gmx_mm_invsqrt_ps(rsq20);
247 rinv21 = gmx_mm_invsqrt_ps(rsq21);
248 rinv22 = gmx_mm_invsqrt_ps(rsq22);
250 rinvsq00 = _mm_mul_ps(rinv00,rinv00);
251 rinvsq01 = _mm_mul_ps(rinv01,rinv01);
252 rinvsq02 = _mm_mul_ps(rinv02,rinv02);
253 rinvsq10 = _mm_mul_ps(rinv10,rinv10);
254 rinvsq11 = _mm_mul_ps(rinv11,rinv11);
255 rinvsq12 = _mm_mul_ps(rinv12,rinv12);
256 rinvsq20 = _mm_mul_ps(rinv20,rinv20);
257 rinvsq21 = _mm_mul_ps(rinv21,rinv21);
258 rinvsq22 = _mm_mul_ps(rinv22,rinv22);
260 fjx0 = _mm_setzero_ps();
261 fjy0 = _mm_setzero_ps();
262 fjz0 = _mm_setzero_ps();
263 fjx1 = _mm_setzero_ps();
264 fjy1 = _mm_setzero_ps();
265 fjz1 = _mm_setzero_ps();
266 fjx2 = _mm_setzero_ps();
267 fjy2 = _mm_setzero_ps();
268 fjz2 = _mm_setzero_ps();
270 /**************************
271 * CALCULATE INTERACTIONS *
272 **************************/
274 /* REACTION-FIELD ELECTROSTATICS */
275 velec = _mm_mul_ps(qq00,_mm_sub_ps(_mm_add_ps(rinv00,_mm_mul_ps(krf,rsq00)),crf));
276 felec = _mm_mul_ps(qq00,_mm_sub_ps(_mm_mul_ps(rinv00,rinvsq00),krf2));
278 /* Update potential sum for this i atom from the interaction with this j atom. */
279 velecsum = _mm_add_ps(velecsum,velec);
283 /* Calculate temporary vectorial force */
284 tx = _mm_mul_ps(fscal,dx00);
285 ty = _mm_mul_ps(fscal,dy00);
286 tz = _mm_mul_ps(fscal,dz00);
288 /* Update vectorial force */
289 fix0 = _mm_add_ps(fix0,tx);
290 fiy0 = _mm_add_ps(fiy0,ty);
291 fiz0 = _mm_add_ps(fiz0,tz);
293 fjx0 = _mm_add_ps(fjx0,tx);
294 fjy0 = _mm_add_ps(fjy0,ty);
295 fjz0 = _mm_add_ps(fjz0,tz);
297 /**************************
298 * CALCULATE INTERACTIONS *
299 **************************/
301 /* REACTION-FIELD ELECTROSTATICS */
302 velec = _mm_mul_ps(qq01,_mm_sub_ps(_mm_add_ps(rinv01,_mm_mul_ps(krf,rsq01)),crf));
303 felec = _mm_mul_ps(qq01,_mm_sub_ps(_mm_mul_ps(rinv01,rinvsq01),krf2));
305 /* Update potential sum for this i atom from the interaction with this j atom. */
306 velecsum = _mm_add_ps(velecsum,velec);
310 /* Calculate temporary vectorial force */
311 tx = _mm_mul_ps(fscal,dx01);
312 ty = _mm_mul_ps(fscal,dy01);
313 tz = _mm_mul_ps(fscal,dz01);
315 /* Update vectorial force */
316 fix0 = _mm_add_ps(fix0,tx);
317 fiy0 = _mm_add_ps(fiy0,ty);
318 fiz0 = _mm_add_ps(fiz0,tz);
320 fjx1 = _mm_add_ps(fjx1,tx);
321 fjy1 = _mm_add_ps(fjy1,ty);
322 fjz1 = _mm_add_ps(fjz1,tz);
324 /**************************
325 * CALCULATE INTERACTIONS *
326 **************************/
328 /* REACTION-FIELD ELECTROSTATICS */
329 velec = _mm_mul_ps(qq02,_mm_sub_ps(_mm_add_ps(rinv02,_mm_mul_ps(krf,rsq02)),crf));
330 felec = _mm_mul_ps(qq02,_mm_sub_ps(_mm_mul_ps(rinv02,rinvsq02),krf2));
332 /* Update potential sum for this i atom from the interaction with this j atom. */
333 velecsum = _mm_add_ps(velecsum,velec);
337 /* Calculate temporary vectorial force */
338 tx = _mm_mul_ps(fscal,dx02);
339 ty = _mm_mul_ps(fscal,dy02);
340 tz = _mm_mul_ps(fscal,dz02);
342 /* Update vectorial force */
343 fix0 = _mm_add_ps(fix0,tx);
344 fiy0 = _mm_add_ps(fiy0,ty);
345 fiz0 = _mm_add_ps(fiz0,tz);
347 fjx2 = _mm_add_ps(fjx2,tx);
348 fjy2 = _mm_add_ps(fjy2,ty);
349 fjz2 = _mm_add_ps(fjz2,tz);
351 /**************************
352 * CALCULATE INTERACTIONS *
353 **************************/
355 /* REACTION-FIELD ELECTROSTATICS */
356 velec = _mm_mul_ps(qq10,_mm_sub_ps(_mm_add_ps(rinv10,_mm_mul_ps(krf,rsq10)),crf));
357 felec = _mm_mul_ps(qq10,_mm_sub_ps(_mm_mul_ps(rinv10,rinvsq10),krf2));
359 /* Update potential sum for this i atom from the interaction with this j atom. */
360 velecsum = _mm_add_ps(velecsum,velec);
364 /* Calculate temporary vectorial force */
365 tx = _mm_mul_ps(fscal,dx10);
366 ty = _mm_mul_ps(fscal,dy10);
367 tz = _mm_mul_ps(fscal,dz10);
369 /* Update vectorial force */
370 fix1 = _mm_add_ps(fix1,tx);
371 fiy1 = _mm_add_ps(fiy1,ty);
372 fiz1 = _mm_add_ps(fiz1,tz);
374 fjx0 = _mm_add_ps(fjx0,tx);
375 fjy0 = _mm_add_ps(fjy0,ty);
376 fjz0 = _mm_add_ps(fjz0,tz);
378 /**************************
379 * CALCULATE INTERACTIONS *
380 **************************/
382 /* REACTION-FIELD ELECTROSTATICS */
383 velec = _mm_mul_ps(qq11,_mm_sub_ps(_mm_add_ps(rinv11,_mm_mul_ps(krf,rsq11)),crf));
384 felec = _mm_mul_ps(qq11,_mm_sub_ps(_mm_mul_ps(rinv11,rinvsq11),krf2));
386 /* Update potential sum for this i atom from the interaction with this j atom. */
387 velecsum = _mm_add_ps(velecsum,velec);
391 /* Calculate temporary vectorial force */
392 tx = _mm_mul_ps(fscal,dx11);
393 ty = _mm_mul_ps(fscal,dy11);
394 tz = _mm_mul_ps(fscal,dz11);
396 /* Update vectorial force */
397 fix1 = _mm_add_ps(fix1,tx);
398 fiy1 = _mm_add_ps(fiy1,ty);
399 fiz1 = _mm_add_ps(fiz1,tz);
401 fjx1 = _mm_add_ps(fjx1,tx);
402 fjy1 = _mm_add_ps(fjy1,ty);
403 fjz1 = _mm_add_ps(fjz1,tz);
405 /**************************
406 * CALCULATE INTERACTIONS *
407 **************************/
409 /* REACTION-FIELD ELECTROSTATICS */
410 velec = _mm_mul_ps(qq12,_mm_sub_ps(_mm_add_ps(rinv12,_mm_mul_ps(krf,rsq12)),crf));
411 felec = _mm_mul_ps(qq12,_mm_sub_ps(_mm_mul_ps(rinv12,rinvsq12),krf2));
413 /* Update potential sum for this i atom from the interaction with this j atom. */
414 velecsum = _mm_add_ps(velecsum,velec);
418 /* Calculate temporary vectorial force */
419 tx = _mm_mul_ps(fscal,dx12);
420 ty = _mm_mul_ps(fscal,dy12);
421 tz = _mm_mul_ps(fscal,dz12);
423 /* Update vectorial force */
424 fix1 = _mm_add_ps(fix1,tx);
425 fiy1 = _mm_add_ps(fiy1,ty);
426 fiz1 = _mm_add_ps(fiz1,tz);
428 fjx2 = _mm_add_ps(fjx2,tx);
429 fjy2 = _mm_add_ps(fjy2,ty);
430 fjz2 = _mm_add_ps(fjz2,tz);
432 /**************************
433 * CALCULATE INTERACTIONS *
434 **************************/
436 /* REACTION-FIELD ELECTROSTATICS */
437 velec = _mm_mul_ps(qq20,_mm_sub_ps(_mm_add_ps(rinv20,_mm_mul_ps(krf,rsq20)),crf));
438 felec = _mm_mul_ps(qq20,_mm_sub_ps(_mm_mul_ps(rinv20,rinvsq20),krf2));
440 /* Update potential sum for this i atom from the interaction with this j atom. */
441 velecsum = _mm_add_ps(velecsum,velec);
445 /* Calculate temporary vectorial force */
446 tx = _mm_mul_ps(fscal,dx20);
447 ty = _mm_mul_ps(fscal,dy20);
448 tz = _mm_mul_ps(fscal,dz20);
450 /* Update vectorial force */
451 fix2 = _mm_add_ps(fix2,tx);
452 fiy2 = _mm_add_ps(fiy2,ty);
453 fiz2 = _mm_add_ps(fiz2,tz);
455 fjx0 = _mm_add_ps(fjx0,tx);
456 fjy0 = _mm_add_ps(fjy0,ty);
457 fjz0 = _mm_add_ps(fjz0,tz);
459 /**************************
460 * CALCULATE INTERACTIONS *
461 **************************/
463 /* REACTION-FIELD ELECTROSTATICS */
464 velec = _mm_mul_ps(qq21,_mm_sub_ps(_mm_add_ps(rinv21,_mm_mul_ps(krf,rsq21)),crf));
465 felec = _mm_mul_ps(qq21,_mm_sub_ps(_mm_mul_ps(rinv21,rinvsq21),krf2));
467 /* Update potential sum for this i atom from the interaction with this j atom. */
468 velecsum = _mm_add_ps(velecsum,velec);
472 /* Calculate temporary vectorial force */
473 tx = _mm_mul_ps(fscal,dx21);
474 ty = _mm_mul_ps(fscal,dy21);
475 tz = _mm_mul_ps(fscal,dz21);
477 /* Update vectorial force */
478 fix2 = _mm_add_ps(fix2,tx);
479 fiy2 = _mm_add_ps(fiy2,ty);
480 fiz2 = _mm_add_ps(fiz2,tz);
482 fjx1 = _mm_add_ps(fjx1,tx);
483 fjy1 = _mm_add_ps(fjy1,ty);
484 fjz1 = _mm_add_ps(fjz1,tz);
486 /**************************
487 * CALCULATE INTERACTIONS *
488 **************************/
490 /* REACTION-FIELD ELECTROSTATICS */
491 velec = _mm_mul_ps(qq22,_mm_sub_ps(_mm_add_ps(rinv22,_mm_mul_ps(krf,rsq22)),crf));
492 felec = _mm_mul_ps(qq22,_mm_sub_ps(_mm_mul_ps(rinv22,rinvsq22),krf2));
494 /* Update potential sum for this i atom from the interaction with this j atom. */
495 velecsum = _mm_add_ps(velecsum,velec);
499 /* Calculate temporary vectorial force */
500 tx = _mm_mul_ps(fscal,dx22);
501 ty = _mm_mul_ps(fscal,dy22);
502 tz = _mm_mul_ps(fscal,dz22);
504 /* Update vectorial force */
505 fix2 = _mm_add_ps(fix2,tx);
506 fiy2 = _mm_add_ps(fiy2,ty);
507 fiz2 = _mm_add_ps(fiz2,tz);
509 fjx2 = _mm_add_ps(fjx2,tx);
510 fjy2 = _mm_add_ps(fjy2,ty);
511 fjz2 = _mm_add_ps(fjz2,tz);
513 gmx_mm_decrement_3rvec_4ptr_swizzle_ps(f+j_coord_offsetA,f+j_coord_offsetB,
514 f+j_coord_offsetC,f+j_coord_offsetD,
515 fjx0,fjy0,fjz0,fjx1,fjy1,fjz1,fjx2,fjy2,fjz2);
517 /* Inner loop uses 288 flops */
523 /* Get j neighbor index, and coordinate index */
529 /* Sign of each element will be negative for non-real atoms.
530 * This mask will be 0xFFFFFFFF for dummy entries and 0x0 for real ones,
531 * so use it as val = _mm_andnot_ps(mask,val) to clear dummy entries.
533 dummy_mask = gmx_mm_castsi128_ps(_mm_cmplt_epi32(_mm_loadu_si128((const __m128i *)(jjnr+jidx)),_mm_setzero_si128()));
534 jnrA = (jnrA>=0) ? jnrA : 0;
535 jnrB = (jnrB>=0) ? jnrB : 0;
536 jnrC = (jnrC>=0) ? jnrC : 0;
537 jnrD = (jnrD>=0) ? jnrD : 0;
539 j_coord_offsetA = DIM*jnrA;
540 j_coord_offsetB = DIM*jnrB;
541 j_coord_offsetC = DIM*jnrC;
542 j_coord_offsetD = DIM*jnrD;
544 /* load j atom coordinates */
545 gmx_mm_load_3rvec_4ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB,
546 x+j_coord_offsetC,x+j_coord_offsetD,
547 &jx0,&jy0,&jz0,&jx1,&jy1,&jz1,&jx2,&jy2,&jz2);
549 /* Calculate displacement vector */
550 dx00 = _mm_sub_ps(ix0,jx0);
551 dy00 = _mm_sub_ps(iy0,jy0);
552 dz00 = _mm_sub_ps(iz0,jz0);
553 dx01 = _mm_sub_ps(ix0,jx1);
554 dy01 = _mm_sub_ps(iy0,jy1);
555 dz01 = _mm_sub_ps(iz0,jz1);
556 dx02 = _mm_sub_ps(ix0,jx2);
557 dy02 = _mm_sub_ps(iy0,jy2);
558 dz02 = _mm_sub_ps(iz0,jz2);
559 dx10 = _mm_sub_ps(ix1,jx0);
560 dy10 = _mm_sub_ps(iy1,jy0);
561 dz10 = _mm_sub_ps(iz1,jz0);
562 dx11 = _mm_sub_ps(ix1,jx1);
563 dy11 = _mm_sub_ps(iy1,jy1);
564 dz11 = _mm_sub_ps(iz1,jz1);
565 dx12 = _mm_sub_ps(ix1,jx2);
566 dy12 = _mm_sub_ps(iy1,jy2);
567 dz12 = _mm_sub_ps(iz1,jz2);
568 dx20 = _mm_sub_ps(ix2,jx0);
569 dy20 = _mm_sub_ps(iy2,jy0);
570 dz20 = _mm_sub_ps(iz2,jz0);
571 dx21 = _mm_sub_ps(ix2,jx1);
572 dy21 = _mm_sub_ps(iy2,jy1);
573 dz21 = _mm_sub_ps(iz2,jz1);
574 dx22 = _mm_sub_ps(ix2,jx2);
575 dy22 = _mm_sub_ps(iy2,jy2);
576 dz22 = _mm_sub_ps(iz2,jz2);
578 /* Calculate squared distance and things based on it */
579 rsq00 = gmx_mm_calc_rsq_ps(dx00,dy00,dz00);
580 rsq01 = gmx_mm_calc_rsq_ps(dx01,dy01,dz01);
581 rsq02 = gmx_mm_calc_rsq_ps(dx02,dy02,dz02);
582 rsq10 = gmx_mm_calc_rsq_ps(dx10,dy10,dz10);
583 rsq11 = gmx_mm_calc_rsq_ps(dx11,dy11,dz11);
584 rsq12 = gmx_mm_calc_rsq_ps(dx12,dy12,dz12);
585 rsq20 = gmx_mm_calc_rsq_ps(dx20,dy20,dz20);
586 rsq21 = gmx_mm_calc_rsq_ps(dx21,dy21,dz21);
587 rsq22 = gmx_mm_calc_rsq_ps(dx22,dy22,dz22);
589 rinv00 = gmx_mm_invsqrt_ps(rsq00);
590 rinv01 = gmx_mm_invsqrt_ps(rsq01);
591 rinv02 = gmx_mm_invsqrt_ps(rsq02);
592 rinv10 = gmx_mm_invsqrt_ps(rsq10);
593 rinv11 = gmx_mm_invsqrt_ps(rsq11);
594 rinv12 = gmx_mm_invsqrt_ps(rsq12);
595 rinv20 = gmx_mm_invsqrt_ps(rsq20);
596 rinv21 = gmx_mm_invsqrt_ps(rsq21);
597 rinv22 = gmx_mm_invsqrt_ps(rsq22);
599 rinvsq00 = _mm_mul_ps(rinv00,rinv00);
600 rinvsq01 = _mm_mul_ps(rinv01,rinv01);
601 rinvsq02 = _mm_mul_ps(rinv02,rinv02);
602 rinvsq10 = _mm_mul_ps(rinv10,rinv10);
603 rinvsq11 = _mm_mul_ps(rinv11,rinv11);
604 rinvsq12 = _mm_mul_ps(rinv12,rinv12);
605 rinvsq20 = _mm_mul_ps(rinv20,rinv20);
606 rinvsq21 = _mm_mul_ps(rinv21,rinv21);
607 rinvsq22 = _mm_mul_ps(rinv22,rinv22);
609 fjx0 = _mm_setzero_ps();
610 fjy0 = _mm_setzero_ps();
611 fjz0 = _mm_setzero_ps();
612 fjx1 = _mm_setzero_ps();
613 fjy1 = _mm_setzero_ps();
614 fjz1 = _mm_setzero_ps();
615 fjx2 = _mm_setzero_ps();
616 fjy2 = _mm_setzero_ps();
617 fjz2 = _mm_setzero_ps();
619 /**************************
620 * CALCULATE INTERACTIONS *
621 **************************/
623 /* REACTION-FIELD ELECTROSTATICS */
624 velec = _mm_mul_ps(qq00,_mm_sub_ps(_mm_add_ps(rinv00,_mm_mul_ps(krf,rsq00)),crf));
625 felec = _mm_mul_ps(qq00,_mm_sub_ps(_mm_mul_ps(rinv00,rinvsq00),krf2));
627 /* Update potential sum for this i atom from the interaction with this j atom. */
628 velec = _mm_andnot_ps(dummy_mask,velec);
629 velecsum = _mm_add_ps(velecsum,velec);
633 fscal = _mm_andnot_ps(dummy_mask,fscal);
635 /* Calculate temporary vectorial force */
636 tx = _mm_mul_ps(fscal,dx00);
637 ty = _mm_mul_ps(fscal,dy00);
638 tz = _mm_mul_ps(fscal,dz00);
640 /* Update vectorial force */
641 fix0 = _mm_add_ps(fix0,tx);
642 fiy0 = _mm_add_ps(fiy0,ty);
643 fiz0 = _mm_add_ps(fiz0,tz);
645 fjx0 = _mm_add_ps(fjx0,tx);
646 fjy0 = _mm_add_ps(fjy0,ty);
647 fjz0 = _mm_add_ps(fjz0,tz);
649 /**************************
650 * CALCULATE INTERACTIONS *
651 **************************/
653 /* REACTION-FIELD ELECTROSTATICS */
654 velec = _mm_mul_ps(qq01,_mm_sub_ps(_mm_add_ps(rinv01,_mm_mul_ps(krf,rsq01)),crf));
655 felec = _mm_mul_ps(qq01,_mm_sub_ps(_mm_mul_ps(rinv01,rinvsq01),krf2));
657 /* Update potential sum for this i atom from the interaction with this j atom. */
658 velec = _mm_andnot_ps(dummy_mask,velec);
659 velecsum = _mm_add_ps(velecsum,velec);
663 fscal = _mm_andnot_ps(dummy_mask,fscal);
665 /* Calculate temporary vectorial force */
666 tx = _mm_mul_ps(fscal,dx01);
667 ty = _mm_mul_ps(fscal,dy01);
668 tz = _mm_mul_ps(fscal,dz01);
670 /* Update vectorial force */
671 fix0 = _mm_add_ps(fix0,tx);
672 fiy0 = _mm_add_ps(fiy0,ty);
673 fiz0 = _mm_add_ps(fiz0,tz);
675 fjx1 = _mm_add_ps(fjx1,tx);
676 fjy1 = _mm_add_ps(fjy1,ty);
677 fjz1 = _mm_add_ps(fjz1,tz);
679 /**************************
680 * CALCULATE INTERACTIONS *
681 **************************/
683 /* REACTION-FIELD ELECTROSTATICS */
684 velec = _mm_mul_ps(qq02,_mm_sub_ps(_mm_add_ps(rinv02,_mm_mul_ps(krf,rsq02)),crf));
685 felec = _mm_mul_ps(qq02,_mm_sub_ps(_mm_mul_ps(rinv02,rinvsq02),krf2));
687 /* Update potential sum for this i atom from the interaction with this j atom. */
688 velec = _mm_andnot_ps(dummy_mask,velec);
689 velecsum = _mm_add_ps(velecsum,velec);
693 fscal = _mm_andnot_ps(dummy_mask,fscal);
695 /* Calculate temporary vectorial force */
696 tx = _mm_mul_ps(fscal,dx02);
697 ty = _mm_mul_ps(fscal,dy02);
698 tz = _mm_mul_ps(fscal,dz02);
700 /* Update vectorial force */
701 fix0 = _mm_add_ps(fix0,tx);
702 fiy0 = _mm_add_ps(fiy0,ty);
703 fiz0 = _mm_add_ps(fiz0,tz);
705 fjx2 = _mm_add_ps(fjx2,tx);
706 fjy2 = _mm_add_ps(fjy2,ty);
707 fjz2 = _mm_add_ps(fjz2,tz);
709 /**************************
710 * CALCULATE INTERACTIONS *
711 **************************/
713 /* REACTION-FIELD ELECTROSTATICS */
714 velec = _mm_mul_ps(qq10,_mm_sub_ps(_mm_add_ps(rinv10,_mm_mul_ps(krf,rsq10)),crf));
715 felec = _mm_mul_ps(qq10,_mm_sub_ps(_mm_mul_ps(rinv10,rinvsq10),krf2));
717 /* Update potential sum for this i atom from the interaction with this j atom. */
718 velec = _mm_andnot_ps(dummy_mask,velec);
719 velecsum = _mm_add_ps(velecsum,velec);
723 fscal = _mm_andnot_ps(dummy_mask,fscal);
725 /* Calculate temporary vectorial force */
726 tx = _mm_mul_ps(fscal,dx10);
727 ty = _mm_mul_ps(fscal,dy10);
728 tz = _mm_mul_ps(fscal,dz10);
730 /* Update vectorial force */
731 fix1 = _mm_add_ps(fix1,tx);
732 fiy1 = _mm_add_ps(fiy1,ty);
733 fiz1 = _mm_add_ps(fiz1,tz);
735 fjx0 = _mm_add_ps(fjx0,tx);
736 fjy0 = _mm_add_ps(fjy0,ty);
737 fjz0 = _mm_add_ps(fjz0,tz);
739 /**************************
740 * CALCULATE INTERACTIONS *
741 **************************/
743 /* REACTION-FIELD ELECTROSTATICS */
744 velec = _mm_mul_ps(qq11,_mm_sub_ps(_mm_add_ps(rinv11,_mm_mul_ps(krf,rsq11)),crf));
745 felec = _mm_mul_ps(qq11,_mm_sub_ps(_mm_mul_ps(rinv11,rinvsq11),krf2));
747 /* Update potential sum for this i atom from the interaction with this j atom. */
748 velec = _mm_andnot_ps(dummy_mask,velec);
749 velecsum = _mm_add_ps(velecsum,velec);
753 fscal = _mm_andnot_ps(dummy_mask,fscal);
755 /* Calculate temporary vectorial force */
756 tx = _mm_mul_ps(fscal,dx11);
757 ty = _mm_mul_ps(fscal,dy11);
758 tz = _mm_mul_ps(fscal,dz11);
760 /* Update vectorial force */
761 fix1 = _mm_add_ps(fix1,tx);
762 fiy1 = _mm_add_ps(fiy1,ty);
763 fiz1 = _mm_add_ps(fiz1,tz);
765 fjx1 = _mm_add_ps(fjx1,tx);
766 fjy1 = _mm_add_ps(fjy1,ty);
767 fjz1 = _mm_add_ps(fjz1,tz);
769 /**************************
770 * CALCULATE INTERACTIONS *
771 **************************/
773 /* REACTION-FIELD ELECTROSTATICS */
774 velec = _mm_mul_ps(qq12,_mm_sub_ps(_mm_add_ps(rinv12,_mm_mul_ps(krf,rsq12)),crf));
775 felec = _mm_mul_ps(qq12,_mm_sub_ps(_mm_mul_ps(rinv12,rinvsq12),krf2));
777 /* Update potential sum for this i atom from the interaction with this j atom. */
778 velec = _mm_andnot_ps(dummy_mask,velec);
779 velecsum = _mm_add_ps(velecsum,velec);
783 fscal = _mm_andnot_ps(dummy_mask,fscal);
785 /* Calculate temporary vectorial force */
786 tx = _mm_mul_ps(fscal,dx12);
787 ty = _mm_mul_ps(fscal,dy12);
788 tz = _mm_mul_ps(fscal,dz12);
790 /* Update vectorial force */
791 fix1 = _mm_add_ps(fix1,tx);
792 fiy1 = _mm_add_ps(fiy1,ty);
793 fiz1 = _mm_add_ps(fiz1,tz);
795 fjx2 = _mm_add_ps(fjx2,tx);
796 fjy2 = _mm_add_ps(fjy2,ty);
797 fjz2 = _mm_add_ps(fjz2,tz);
799 /**************************
800 * CALCULATE INTERACTIONS *
801 **************************/
803 /* REACTION-FIELD ELECTROSTATICS */
804 velec = _mm_mul_ps(qq20,_mm_sub_ps(_mm_add_ps(rinv20,_mm_mul_ps(krf,rsq20)),crf));
805 felec = _mm_mul_ps(qq20,_mm_sub_ps(_mm_mul_ps(rinv20,rinvsq20),krf2));
807 /* Update potential sum for this i atom from the interaction with this j atom. */
808 velec = _mm_andnot_ps(dummy_mask,velec);
809 velecsum = _mm_add_ps(velecsum,velec);
813 fscal = _mm_andnot_ps(dummy_mask,fscal);
815 /* Calculate temporary vectorial force */
816 tx = _mm_mul_ps(fscal,dx20);
817 ty = _mm_mul_ps(fscal,dy20);
818 tz = _mm_mul_ps(fscal,dz20);
820 /* Update vectorial force */
821 fix2 = _mm_add_ps(fix2,tx);
822 fiy2 = _mm_add_ps(fiy2,ty);
823 fiz2 = _mm_add_ps(fiz2,tz);
825 fjx0 = _mm_add_ps(fjx0,tx);
826 fjy0 = _mm_add_ps(fjy0,ty);
827 fjz0 = _mm_add_ps(fjz0,tz);
829 /**************************
830 * CALCULATE INTERACTIONS *
831 **************************/
833 /* REACTION-FIELD ELECTROSTATICS */
834 velec = _mm_mul_ps(qq21,_mm_sub_ps(_mm_add_ps(rinv21,_mm_mul_ps(krf,rsq21)),crf));
835 felec = _mm_mul_ps(qq21,_mm_sub_ps(_mm_mul_ps(rinv21,rinvsq21),krf2));
837 /* Update potential sum for this i atom from the interaction with this j atom. */
838 velec = _mm_andnot_ps(dummy_mask,velec);
839 velecsum = _mm_add_ps(velecsum,velec);
843 fscal = _mm_andnot_ps(dummy_mask,fscal);
845 /* Calculate temporary vectorial force */
846 tx = _mm_mul_ps(fscal,dx21);
847 ty = _mm_mul_ps(fscal,dy21);
848 tz = _mm_mul_ps(fscal,dz21);
850 /* Update vectorial force */
851 fix2 = _mm_add_ps(fix2,tx);
852 fiy2 = _mm_add_ps(fiy2,ty);
853 fiz2 = _mm_add_ps(fiz2,tz);
855 fjx1 = _mm_add_ps(fjx1,tx);
856 fjy1 = _mm_add_ps(fjy1,ty);
857 fjz1 = _mm_add_ps(fjz1,tz);
859 /**************************
860 * CALCULATE INTERACTIONS *
861 **************************/
863 /* REACTION-FIELD ELECTROSTATICS */
864 velec = _mm_mul_ps(qq22,_mm_sub_ps(_mm_add_ps(rinv22,_mm_mul_ps(krf,rsq22)),crf));
865 felec = _mm_mul_ps(qq22,_mm_sub_ps(_mm_mul_ps(rinv22,rinvsq22),krf2));
867 /* Update potential sum for this i atom from the interaction with this j atom. */
868 velec = _mm_andnot_ps(dummy_mask,velec);
869 velecsum = _mm_add_ps(velecsum,velec);
873 fscal = _mm_andnot_ps(dummy_mask,fscal);
875 /* Calculate temporary vectorial force */
876 tx = _mm_mul_ps(fscal,dx22);
877 ty = _mm_mul_ps(fscal,dy22);
878 tz = _mm_mul_ps(fscal,dz22);
880 /* Update vectorial force */
881 fix2 = _mm_add_ps(fix2,tx);
882 fiy2 = _mm_add_ps(fiy2,ty);
883 fiz2 = _mm_add_ps(fiz2,tz);
885 fjx2 = _mm_add_ps(fjx2,tx);
886 fjy2 = _mm_add_ps(fjy2,ty);
887 fjz2 = _mm_add_ps(fjz2,tz);
889 gmx_mm_decrement_3rvec_4ptr_swizzle_ps(f+j_coord_offsetA,f+j_coord_offsetB,
890 f+j_coord_offsetC,f+j_coord_offsetD,
891 fjx0,fjy0,fjz0,fjx1,fjy1,fjz1,fjx2,fjy2,fjz2);
893 /* Inner loop uses 288 flops */
896 /* End of innermost loop */
898 gmx_mm_update_iforce_3atom_swizzle_ps(fix0,fiy0,fiz0,fix1,fiy1,fiz1,fix2,fiy2,fiz2,
899 f+i_coord_offset,fshift+i_shift_offset);
902 /* Update potential energies */
903 gmx_mm_update_1pot_ps(velecsum,kernel_data->energygrp_elec+ggid);
905 /* Increment number of inner iterations */
906 inneriter += j_index_end - j_index_start;
908 /* Outer loop uses 28 flops */
911 /* Increment number of outer iterations */
914 /* Update outer/inner flops */
916 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_W3W3_VF,outeriter*28 + inneriter*288);
919 * Gromacs nonbonded kernel: nb_kernel_ElecRF_VdwNone_GeomW3W3_F_sse2_single
920 * Electrostatics interaction: ReactionField
921 * VdW interaction: None
922 * Geometry: Water3-Water3
923 * Calculate force/pot: Force
926 nb_kernel_ElecRF_VdwNone_GeomW3W3_F_sse2_single
927 (t_nblist * gmx_restrict nlist,
928 rvec * gmx_restrict xx,
929 rvec * gmx_restrict ff,
930 t_forcerec * gmx_restrict fr,
931 t_mdatoms * gmx_restrict mdatoms,
932 nb_kernel_data_t * gmx_restrict kernel_data,
933 t_nrnb * gmx_restrict nrnb)
935 /* Suffixes 0,1,2,3 refer to particle indices for waters in the inner or outer loop, or
936 * just 0 for non-waters.
937 * Suffixes A,B,C,D refer to j loop unrolling done with SSE, e.g. for the four different
938 * jnr indices corresponding to data put in the four positions in the SIMD register.
940 int i_shift_offset,i_coord_offset,outeriter,inneriter;
941 int j_index_start,j_index_end,jidx,nri,inr,ggid,iidx;
942 int jnrA,jnrB,jnrC,jnrD;
943 int j_coord_offsetA,j_coord_offsetB,j_coord_offsetC,j_coord_offsetD;
944 int *iinr,*jindex,*jjnr,*shiftidx,*gid;
945 real shX,shY,shZ,rcutoff_scalar;
946 real *shiftvec,*fshift,*x,*f;
947 __m128 tx,ty,tz,fscal,rcutoff,rcutoff2,jidxall;
949 __m128 ix0,iy0,iz0,fix0,fiy0,fiz0,iq0,isai0;
951 __m128 ix1,iy1,iz1,fix1,fiy1,fiz1,iq1,isai1;
953 __m128 ix2,iy2,iz2,fix2,fiy2,fiz2,iq2,isai2;
954 int vdwjidx0A,vdwjidx0B,vdwjidx0C,vdwjidx0D;
955 __m128 jx0,jy0,jz0,fjx0,fjy0,fjz0,jq0,isaj0;
956 int vdwjidx1A,vdwjidx1B,vdwjidx1C,vdwjidx1D;
957 __m128 jx1,jy1,jz1,fjx1,fjy1,fjz1,jq1,isaj1;
958 int vdwjidx2A,vdwjidx2B,vdwjidx2C,vdwjidx2D;
959 __m128 jx2,jy2,jz2,fjx2,fjy2,fjz2,jq2,isaj2;
960 __m128 dx00,dy00,dz00,rsq00,rinv00,rinvsq00,r00,qq00,c6_00,c12_00;
961 __m128 dx01,dy01,dz01,rsq01,rinv01,rinvsq01,r01,qq01,c6_01,c12_01;
962 __m128 dx02,dy02,dz02,rsq02,rinv02,rinvsq02,r02,qq02,c6_02,c12_02;
963 __m128 dx10,dy10,dz10,rsq10,rinv10,rinvsq10,r10,qq10,c6_10,c12_10;
964 __m128 dx11,dy11,dz11,rsq11,rinv11,rinvsq11,r11,qq11,c6_11,c12_11;
965 __m128 dx12,dy12,dz12,rsq12,rinv12,rinvsq12,r12,qq12,c6_12,c12_12;
966 __m128 dx20,dy20,dz20,rsq20,rinv20,rinvsq20,r20,qq20,c6_20,c12_20;
967 __m128 dx21,dy21,dz21,rsq21,rinv21,rinvsq21,r21,qq21,c6_21,c12_21;
968 __m128 dx22,dy22,dz22,rsq22,rinv22,rinvsq22,r22,qq22,c6_22,c12_22;
969 __m128 velec,felec,velecsum,facel,crf,krf,krf2;
971 __m128 dummy_mask,cutoff_mask;
972 __m128 signbit = _mm_castsi128_ps( _mm_set1_epi32(0x80000000) );
973 __m128 one = _mm_set1_ps(1.0);
974 __m128 two = _mm_set1_ps(2.0);
980 jindex = nlist->jindex;
982 shiftidx = nlist->shift;
984 shiftvec = fr->shift_vec[0];
985 fshift = fr->fshift[0];
986 facel = _mm_set1_ps(fr->epsfac);
987 charge = mdatoms->chargeA;
988 krf = _mm_set1_ps(fr->ic->k_rf);
989 krf2 = _mm_set1_ps(fr->ic->k_rf*2.0);
990 crf = _mm_set1_ps(fr->ic->c_rf);
992 /* Setup water-specific parameters */
993 inr = nlist->iinr[0];
994 iq0 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+0]));
995 iq1 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+1]));
996 iq2 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+2]));
998 jq0 = _mm_set1_ps(charge[inr+0]);
999 jq1 = _mm_set1_ps(charge[inr+1]);
1000 jq2 = _mm_set1_ps(charge[inr+2]);
1001 qq00 = _mm_mul_ps(iq0,jq0);
1002 qq01 = _mm_mul_ps(iq0,jq1);
1003 qq02 = _mm_mul_ps(iq0,jq2);
1004 qq10 = _mm_mul_ps(iq1,jq0);
1005 qq11 = _mm_mul_ps(iq1,jq1);
1006 qq12 = _mm_mul_ps(iq1,jq2);
1007 qq20 = _mm_mul_ps(iq2,jq0);
1008 qq21 = _mm_mul_ps(iq2,jq1);
1009 qq22 = _mm_mul_ps(iq2,jq2);
1011 /* Avoid stupid compiler warnings */
1012 jnrA = jnrB = jnrC = jnrD = 0;
1013 j_coord_offsetA = 0;
1014 j_coord_offsetB = 0;
1015 j_coord_offsetC = 0;
1016 j_coord_offsetD = 0;
1021 /* Start outer loop over neighborlists */
1022 for(iidx=0; iidx<nri; iidx++)
1024 /* Load shift vector for this list */
1025 i_shift_offset = DIM*shiftidx[iidx];
1026 shX = shiftvec[i_shift_offset+XX];
1027 shY = shiftvec[i_shift_offset+YY];
1028 shZ = shiftvec[i_shift_offset+ZZ];
1030 /* Load limits for loop over neighbors */
1031 j_index_start = jindex[iidx];
1032 j_index_end = jindex[iidx+1];
1034 /* Get outer coordinate index */
1036 i_coord_offset = DIM*inr;
1038 /* Load i particle coords and add shift vector */
1039 ix0 = _mm_set1_ps(shX + x[i_coord_offset+DIM*0+XX]);
1040 iy0 = _mm_set1_ps(shY + x[i_coord_offset+DIM*0+YY]);
1041 iz0 = _mm_set1_ps(shZ + x[i_coord_offset+DIM*0+ZZ]);
1042 ix1 = _mm_set1_ps(shX + x[i_coord_offset+DIM*1+XX]);
1043 iy1 = _mm_set1_ps(shY + x[i_coord_offset+DIM*1+YY]);
1044 iz1 = _mm_set1_ps(shZ + x[i_coord_offset+DIM*1+ZZ]);
1045 ix2 = _mm_set1_ps(shX + x[i_coord_offset+DIM*2+XX]);
1046 iy2 = _mm_set1_ps(shY + x[i_coord_offset+DIM*2+YY]);
1047 iz2 = _mm_set1_ps(shZ + x[i_coord_offset+DIM*2+ZZ]);
1049 fix0 = _mm_setzero_ps();
1050 fiy0 = _mm_setzero_ps();
1051 fiz0 = _mm_setzero_ps();
1052 fix1 = _mm_setzero_ps();
1053 fiy1 = _mm_setzero_ps();
1054 fiz1 = _mm_setzero_ps();
1055 fix2 = _mm_setzero_ps();
1056 fiy2 = _mm_setzero_ps();
1057 fiz2 = _mm_setzero_ps();
1059 /* Start inner kernel loop */
1060 for(jidx=j_index_start; jidx<j_index_end && jjnr[jidx+3]>=0; jidx+=4)
1063 /* Get j neighbor index, and coordinate index */
1065 jnrB = jjnr[jidx+1];
1066 jnrC = jjnr[jidx+2];
1067 jnrD = jjnr[jidx+3];
1069 j_coord_offsetA = DIM*jnrA;
1070 j_coord_offsetB = DIM*jnrB;
1071 j_coord_offsetC = DIM*jnrC;
1072 j_coord_offsetD = DIM*jnrD;
1074 /* load j atom coordinates */
1075 gmx_mm_load_3rvec_4ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB,
1076 x+j_coord_offsetC,x+j_coord_offsetD,
1077 &jx0,&jy0,&jz0,&jx1,&jy1,&jz1,&jx2,&jy2,&jz2);
1079 /* Calculate displacement vector */
1080 dx00 = _mm_sub_ps(ix0,jx0);
1081 dy00 = _mm_sub_ps(iy0,jy0);
1082 dz00 = _mm_sub_ps(iz0,jz0);
1083 dx01 = _mm_sub_ps(ix0,jx1);
1084 dy01 = _mm_sub_ps(iy0,jy1);
1085 dz01 = _mm_sub_ps(iz0,jz1);
1086 dx02 = _mm_sub_ps(ix0,jx2);
1087 dy02 = _mm_sub_ps(iy0,jy2);
1088 dz02 = _mm_sub_ps(iz0,jz2);
1089 dx10 = _mm_sub_ps(ix1,jx0);
1090 dy10 = _mm_sub_ps(iy1,jy0);
1091 dz10 = _mm_sub_ps(iz1,jz0);
1092 dx11 = _mm_sub_ps(ix1,jx1);
1093 dy11 = _mm_sub_ps(iy1,jy1);
1094 dz11 = _mm_sub_ps(iz1,jz1);
1095 dx12 = _mm_sub_ps(ix1,jx2);
1096 dy12 = _mm_sub_ps(iy1,jy2);
1097 dz12 = _mm_sub_ps(iz1,jz2);
1098 dx20 = _mm_sub_ps(ix2,jx0);
1099 dy20 = _mm_sub_ps(iy2,jy0);
1100 dz20 = _mm_sub_ps(iz2,jz0);
1101 dx21 = _mm_sub_ps(ix2,jx1);
1102 dy21 = _mm_sub_ps(iy2,jy1);
1103 dz21 = _mm_sub_ps(iz2,jz1);
1104 dx22 = _mm_sub_ps(ix2,jx2);
1105 dy22 = _mm_sub_ps(iy2,jy2);
1106 dz22 = _mm_sub_ps(iz2,jz2);
1108 /* Calculate squared distance and things based on it */
1109 rsq00 = gmx_mm_calc_rsq_ps(dx00,dy00,dz00);
1110 rsq01 = gmx_mm_calc_rsq_ps(dx01,dy01,dz01);
1111 rsq02 = gmx_mm_calc_rsq_ps(dx02,dy02,dz02);
1112 rsq10 = gmx_mm_calc_rsq_ps(dx10,dy10,dz10);
1113 rsq11 = gmx_mm_calc_rsq_ps(dx11,dy11,dz11);
1114 rsq12 = gmx_mm_calc_rsq_ps(dx12,dy12,dz12);
1115 rsq20 = gmx_mm_calc_rsq_ps(dx20,dy20,dz20);
1116 rsq21 = gmx_mm_calc_rsq_ps(dx21,dy21,dz21);
1117 rsq22 = gmx_mm_calc_rsq_ps(dx22,dy22,dz22);
1119 rinv00 = gmx_mm_invsqrt_ps(rsq00);
1120 rinv01 = gmx_mm_invsqrt_ps(rsq01);
1121 rinv02 = gmx_mm_invsqrt_ps(rsq02);
1122 rinv10 = gmx_mm_invsqrt_ps(rsq10);
1123 rinv11 = gmx_mm_invsqrt_ps(rsq11);
1124 rinv12 = gmx_mm_invsqrt_ps(rsq12);
1125 rinv20 = gmx_mm_invsqrt_ps(rsq20);
1126 rinv21 = gmx_mm_invsqrt_ps(rsq21);
1127 rinv22 = gmx_mm_invsqrt_ps(rsq22);
1129 rinvsq00 = _mm_mul_ps(rinv00,rinv00);
1130 rinvsq01 = _mm_mul_ps(rinv01,rinv01);
1131 rinvsq02 = _mm_mul_ps(rinv02,rinv02);
1132 rinvsq10 = _mm_mul_ps(rinv10,rinv10);
1133 rinvsq11 = _mm_mul_ps(rinv11,rinv11);
1134 rinvsq12 = _mm_mul_ps(rinv12,rinv12);
1135 rinvsq20 = _mm_mul_ps(rinv20,rinv20);
1136 rinvsq21 = _mm_mul_ps(rinv21,rinv21);
1137 rinvsq22 = _mm_mul_ps(rinv22,rinv22);
1139 fjx0 = _mm_setzero_ps();
1140 fjy0 = _mm_setzero_ps();
1141 fjz0 = _mm_setzero_ps();
1142 fjx1 = _mm_setzero_ps();
1143 fjy1 = _mm_setzero_ps();
1144 fjz1 = _mm_setzero_ps();
1145 fjx2 = _mm_setzero_ps();
1146 fjy2 = _mm_setzero_ps();
1147 fjz2 = _mm_setzero_ps();
1149 /**************************
1150 * CALCULATE INTERACTIONS *
1151 **************************/
1153 /* REACTION-FIELD ELECTROSTATICS */
1154 felec = _mm_mul_ps(qq00,_mm_sub_ps(_mm_mul_ps(rinv00,rinvsq00),krf2));
1158 /* Calculate temporary vectorial force */
1159 tx = _mm_mul_ps(fscal,dx00);
1160 ty = _mm_mul_ps(fscal,dy00);
1161 tz = _mm_mul_ps(fscal,dz00);
1163 /* Update vectorial force */
1164 fix0 = _mm_add_ps(fix0,tx);
1165 fiy0 = _mm_add_ps(fiy0,ty);
1166 fiz0 = _mm_add_ps(fiz0,tz);
1168 fjx0 = _mm_add_ps(fjx0,tx);
1169 fjy0 = _mm_add_ps(fjy0,ty);
1170 fjz0 = _mm_add_ps(fjz0,tz);
1172 /**************************
1173 * CALCULATE INTERACTIONS *
1174 **************************/
1176 /* REACTION-FIELD ELECTROSTATICS */
1177 felec = _mm_mul_ps(qq01,_mm_sub_ps(_mm_mul_ps(rinv01,rinvsq01),krf2));
1181 /* Calculate temporary vectorial force */
1182 tx = _mm_mul_ps(fscal,dx01);
1183 ty = _mm_mul_ps(fscal,dy01);
1184 tz = _mm_mul_ps(fscal,dz01);
1186 /* Update vectorial force */
1187 fix0 = _mm_add_ps(fix0,tx);
1188 fiy0 = _mm_add_ps(fiy0,ty);
1189 fiz0 = _mm_add_ps(fiz0,tz);
1191 fjx1 = _mm_add_ps(fjx1,tx);
1192 fjy1 = _mm_add_ps(fjy1,ty);
1193 fjz1 = _mm_add_ps(fjz1,tz);
1195 /**************************
1196 * CALCULATE INTERACTIONS *
1197 **************************/
1199 /* REACTION-FIELD ELECTROSTATICS */
1200 felec = _mm_mul_ps(qq02,_mm_sub_ps(_mm_mul_ps(rinv02,rinvsq02),krf2));
1204 /* Calculate temporary vectorial force */
1205 tx = _mm_mul_ps(fscal,dx02);
1206 ty = _mm_mul_ps(fscal,dy02);
1207 tz = _mm_mul_ps(fscal,dz02);
1209 /* Update vectorial force */
1210 fix0 = _mm_add_ps(fix0,tx);
1211 fiy0 = _mm_add_ps(fiy0,ty);
1212 fiz0 = _mm_add_ps(fiz0,tz);
1214 fjx2 = _mm_add_ps(fjx2,tx);
1215 fjy2 = _mm_add_ps(fjy2,ty);
1216 fjz2 = _mm_add_ps(fjz2,tz);
1218 /**************************
1219 * CALCULATE INTERACTIONS *
1220 **************************/
1222 /* REACTION-FIELD ELECTROSTATICS */
1223 felec = _mm_mul_ps(qq10,_mm_sub_ps(_mm_mul_ps(rinv10,rinvsq10),krf2));
1227 /* Calculate temporary vectorial force */
1228 tx = _mm_mul_ps(fscal,dx10);
1229 ty = _mm_mul_ps(fscal,dy10);
1230 tz = _mm_mul_ps(fscal,dz10);
1232 /* Update vectorial force */
1233 fix1 = _mm_add_ps(fix1,tx);
1234 fiy1 = _mm_add_ps(fiy1,ty);
1235 fiz1 = _mm_add_ps(fiz1,tz);
1237 fjx0 = _mm_add_ps(fjx0,tx);
1238 fjy0 = _mm_add_ps(fjy0,ty);
1239 fjz0 = _mm_add_ps(fjz0,tz);
1241 /**************************
1242 * CALCULATE INTERACTIONS *
1243 **************************/
1245 /* REACTION-FIELD ELECTROSTATICS */
1246 felec = _mm_mul_ps(qq11,_mm_sub_ps(_mm_mul_ps(rinv11,rinvsq11),krf2));
1250 /* Calculate temporary vectorial force */
1251 tx = _mm_mul_ps(fscal,dx11);
1252 ty = _mm_mul_ps(fscal,dy11);
1253 tz = _mm_mul_ps(fscal,dz11);
1255 /* Update vectorial force */
1256 fix1 = _mm_add_ps(fix1,tx);
1257 fiy1 = _mm_add_ps(fiy1,ty);
1258 fiz1 = _mm_add_ps(fiz1,tz);
1260 fjx1 = _mm_add_ps(fjx1,tx);
1261 fjy1 = _mm_add_ps(fjy1,ty);
1262 fjz1 = _mm_add_ps(fjz1,tz);
1264 /**************************
1265 * CALCULATE INTERACTIONS *
1266 **************************/
1268 /* REACTION-FIELD ELECTROSTATICS */
1269 felec = _mm_mul_ps(qq12,_mm_sub_ps(_mm_mul_ps(rinv12,rinvsq12),krf2));
1273 /* Calculate temporary vectorial force */
1274 tx = _mm_mul_ps(fscal,dx12);
1275 ty = _mm_mul_ps(fscal,dy12);
1276 tz = _mm_mul_ps(fscal,dz12);
1278 /* Update vectorial force */
1279 fix1 = _mm_add_ps(fix1,tx);
1280 fiy1 = _mm_add_ps(fiy1,ty);
1281 fiz1 = _mm_add_ps(fiz1,tz);
1283 fjx2 = _mm_add_ps(fjx2,tx);
1284 fjy2 = _mm_add_ps(fjy2,ty);
1285 fjz2 = _mm_add_ps(fjz2,tz);
1287 /**************************
1288 * CALCULATE INTERACTIONS *
1289 **************************/
1291 /* REACTION-FIELD ELECTROSTATICS */
1292 felec = _mm_mul_ps(qq20,_mm_sub_ps(_mm_mul_ps(rinv20,rinvsq20),krf2));
1296 /* Calculate temporary vectorial force */
1297 tx = _mm_mul_ps(fscal,dx20);
1298 ty = _mm_mul_ps(fscal,dy20);
1299 tz = _mm_mul_ps(fscal,dz20);
1301 /* Update vectorial force */
1302 fix2 = _mm_add_ps(fix2,tx);
1303 fiy2 = _mm_add_ps(fiy2,ty);
1304 fiz2 = _mm_add_ps(fiz2,tz);
1306 fjx0 = _mm_add_ps(fjx0,tx);
1307 fjy0 = _mm_add_ps(fjy0,ty);
1308 fjz0 = _mm_add_ps(fjz0,tz);
1310 /**************************
1311 * CALCULATE INTERACTIONS *
1312 **************************/
1314 /* REACTION-FIELD ELECTROSTATICS */
1315 felec = _mm_mul_ps(qq21,_mm_sub_ps(_mm_mul_ps(rinv21,rinvsq21),krf2));
1319 /* Calculate temporary vectorial force */
1320 tx = _mm_mul_ps(fscal,dx21);
1321 ty = _mm_mul_ps(fscal,dy21);
1322 tz = _mm_mul_ps(fscal,dz21);
1324 /* Update vectorial force */
1325 fix2 = _mm_add_ps(fix2,tx);
1326 fiy2 = _mm_add_ps(fiy2,ty);
1327 fiz2 = _mm_add_ps(fiz2,tz);
1329 fjx1 = _mm_add_ps(fjx1,tx);
1330 fjy1 = _mm_add_ps(fjy1,ty);
1331 fjz1 = _mm_add_ps(fjz1,tz);
1333 /**************************
1334 * CALCULATE INTERACTIONS *
1335 **************************/
1337 /* REACTION-FIELD ELECTROSTATICS */
1338 felec = _mm_mul_ps(qq22,_mm_sub_ps(_mm_mul_ps(rinv22,rinvsq22),krf2));
1342 /* Calculate temporary vectorial force */
1343 tx = _mm_mul_ps(fscal,dx22);
1344 ty = _mm_mul_ps(fscal,dy22);
1345 tz = _mm_mul_ps(fscal,dz22);
1347 /* Update vectorial force */
1348 fix2 = _mm_add_ps(fix2,tx);
1349 fiy2 = _mm_add_ps(fiy2,ty);
1350 fiz2 = _mm_add_ps(fiz2,tz);
1352 fjx2 = _mm_add_ps(fjx2,tx);
1353 fjy2 = _mm_add_ps(fjy2,ty);
1354 fjz2 = _mm_add_ps(fjz2,tz);
1356 gmx_mm_decrement_3rvec_4ptr_swizzle_ps(f+j_coord_offsetA,f+j_coord_offsetB,
1357 f+j_coord_offsetC,f+j_coord_offsetD,
1358 fjx0,fjy0,fjz0,fjx1,fjy1,fjz1,fjx2,fjy2,fjz2);
1360 /* Inner loop uses 243 flops */
1363 if(jidx<j_index_end)
1366 /* Get j neighbor index, and coordinate index */
1368 jnrB = jjnr[jidx+1];
1369 jnrC = jjnr[jidx+2];
1370 jnrD = jjnr[jidx+3];
1372 /* Sign of each element will be negative for non-real atoms.
1373 * This mask will be 0xFFFFFFFF for dummy entries and 0x0 for real ones,
1374 * so use it as val = _mm_andnot_ps(mask,val) to clear dummy entries.
1376 dummy_mask = gmx_mm_castsi128_ps(_mm_cmplt_epi32(_mm_loadu_si128((const __m128i *)(jjnr+jidx)),_mm_setzero_si128()));
1377 jnrA = (jnrA>=0) ? jnrA : 0;
1378 jnrB = (jnrB>=0) ? jnrB : 0;
1379 jnrC = (jnrC>=0) ? jnrC : 0;
1380 jnrD = (jnrD>=0) ? jnrD : 0;
1382 j_coord_offsetA = DIM*jnrA;
1383 j_coord_offsetB = DIM*jnrB;
1384 j_coord_offsetC = DIM*jnrC;
1385 j_coord_offsetD = DIM*jnrD;
1387 /* load j atom coordinates */
1388 gmx_mm_load_3rvec_4ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB,
1389 x+j_coord_offsetC,x+j_coord_offsetD,
1390 &jx0,&jy0,&jz0,&jx1,&jy1,&jz1,&jx2,&jy2,&jz2);
1392 /* Calculate displacement vector */
1393 dx00 = _mm_sub_ps(ix0,jx0);
1394 dy00 = _mm_sub_ps(iy0,jy0);
1395 dz00 = _mm_sub_ps(iz0,jz0);
1396 dx01 = _mm_sub_ps(ix0,jx1);
1397 dy01 = _mm_sub_ps(iy0,jy1);
1398 dz01 = _mm_sub_ps(iz0,jz1);
1399 dx02 = _mm_sub_ps(ix0,jx2);
1400 dy02 = _mm_sub_ps(iy0,jy2);
1401 dz02 = _mm_sub_ps(iz0,jz2);
1402 dx10 = _mm_sub_ps(ix1,jx0);
1403 dy10 = _mm_sub_ps(iy1,jy0);
1404 dz10 = _mm_sub_ps(iz1,jz0);
1405 dx11 = _mm_sub_ps(ix1,jx1);
1406 dy11 = _mm_sub_ps(iy1,jy1);
1407 dz11 = _mm_sub_ps(iz1,jz1);
1408 dx12 = _mm_sub_ps(ix1,jx2);
1409 dy12 = _mm_sub_ps(iy1,jy2);
1410 dz12 = _mm_sub_ps(iz1,jz2);
1411 dx20 = _mm_sub_ps(ix2,jx0);
1412 dy20 = _mm_sub_ps(iy2,jy0);
1413 dz20 = _mm_sub_ps(iz2,jz0);
1414 dx21 = _mm_sub_ps(ix2,jx1);
1415 dy21 = _mm_sub_ps(iy2,jy1);
1416 dz21 = _mm_sub_ps(iz2,jz1);
1417 dx22 = _mm_sub_ps(ix2,jx2);
1418 dy22 = _mm_sub_ps(iy2,jy2);
1419 dz22 = _mm_sub_ps(iz2,jz2);
1421 /* Calculate squared distance and things based on it */
1422 rsq00 = gmx_mm_calc_rsq_ps(dx00,dy00,dz00);
1423 rsq01 = gmx_mm_calc_rsq_ps(dx01,dy01,dz01);
1424 rsq02 = gmx_mm_calc_rsq_ps(dx02,dy02,dz02);
1425 rsq10 = gmx_mm_calc_rsq_ps(dx10,dy10,dz10);
1426 rsq11 = gmx_mm_calc_rsq_ps(dx11,dy11,dz11);
1427 rsq12 = gmx_mm_calc_rsq_ps(dx12,dy12,dz12);
1428 rsq20 = gmx_mm_calc_rsq_ps(dx20,dy20,dz20);
1429 rsq21 = gmx_mm_calc_rsq_ps(dx21,dy21,dz21);
1430 rsq22 = gmx_mm_calc_rsq_ps(dx22,dy22,dz22);
1432 rinv00 = gmx_mm_invsqrt_ps(rsq00);
1433 rinv01 = gmx_mm_invsqrt_ps(rsq01);
1434 rinv02 = gmx_mm_invsqrt_ps(rsq02);
1435 rinv10 = gmx_mm_invsqrt_ps(rsq10);
1436 rinv11 = gmx_mm_invsqrt_ps(rsq11);
1437 rinv12 = gmx_mm_invsqrt_ps(rsq12);
1438 rinv20 = gmx_mm_invsqrt_ps(rsq20);
1439 rinv21 = gmx_mm_invsqrt_ps(rsq21);
1440 rinv22 = gmx_mm_invsqrt_ps(rsq22);
1442 rinvsq00 = _mm_mul_ps(rinv00,rinv00);
1443 rinvsq01 = _mm_mul_ps(rinv01,rinv01);
1444 rinvsq02 = _mm_mul_ps(rinv02,rinv02);
1445 rinvsq10 = _mm_mul_ps(rinv10,rinv10);
1446 rinvsq11 = _mm_mul_ps(rinv11,rinv11);
1447 rinvsq12 = _mm_mul_ps(rinv12,rinv12);
1448 rinvsq20 = _mm_mul_ps(rinv20,rinv20);
1449 rinvsq21 = _mm_mul_ps(rinv21,rinv21);
1450 rinvsq22 = _mm_mul_ps(rinv22,rinv22);
1452 fjx0 = _mm_setzero_ps();
1453 fjy0 = _mm_setzero_ps();
1454 fjz0 = _mm_setzero_ps();
1455 fjx1 = _mm_setzero_ps();
1456 fjy1 = _mm_setzero_ps();
1457 fjz1 = _mm_setzero_ps();
1458 fjx2 = _mm_setzero_ps();
1459 fjy2 = _mm_setzero_ps();
1460 fjz2 = _mm_setzero_ps();
1462 /**************************
1463 * CALCULATE INTERACTIONS *
1464 **************************/
1466 /* REACTION-FIELD ELECTROSTATICS */
1467 felec = _mm_mul_ps(qq00,_mm_sub_ps(_mm_mul_ps(rinv00,rinvsq00),krf2));
1471 fscal = _mm_andnot_ps(dummy_mask,fscal);
1473 /* Calculate temporary vectorial force */
1474 tx = _mm_mul_ps(fscal,dx00);
1475 ty = _mm_mul_ps(fscal,dy00);
1476 tz = _mm_mul_ps(fscal,dz00);
1478 /* Update vectorial force */
1479 fix0 = _mm_add_ps(fix0,tx);
1480 fiy0 = _mm_add_ps(fiy0,ty);
1481 fiz0 = _mm_add_ps(fiz0,tz);
1483 fjx0 = _mm_add_ps(fjx0,tx);
1484 fjy0 = _mm_add_ps(fjy0,ty);
1485 fjz0 = _mm_add_ps(fjz0,tz);
1487 /**************************
1488 * CALCULATE INTERACTIONS *
1489 **************************/
1491 /* REACTION-FIELD ELECTROSTATICS */
1492 felec = _mm_mul_ps(qq01,_mm_sub_ps(_mm_mul_ps(rinv01,rinvsq01),krf2));
1496 fscal = _mm_andnot_ps(dummy_mask,fscal);
1498 /* Calculate temporary vectorial force */
1499 tx = _mm_mul_ps(fscal,dx01);
1500 ty = _mm_mul_ps(fscal,dy01);
1501 tz = _mm_mul_ps(fscal,dz01);
1503 /* Update vectorial force */
1504 fix0 = _mm_add_ps(fix0,tx);
1505 fiy0 = _mm_add_ps(fiy0,ty);
1506 fiz0 = _mm_add_ps(fiz0,tz);
1508 fjx1 = _mm_add_ps(fjx1,tx);
1509 fjy1 = _mm_add_ps(fjy1,ty);
1510 fjz1 = _mm_add_ps(fjz1,tz);
1512 /**************************
1513 * CALCULATE INTERACTIONS *
1514 **************************/
1516 /* REACTION-FIELD ELECTROSTATICS */
1517 felec = _mm_mul_ps(qq02,_mm_sub_ps(_mm_mul_ps(rinv02,rinvsq02),krf2));
1521 fscal = _mm_andnot_ps(dummy_mask,fscal);
1523 /* Calculate temporary vectorial force */
1524 tx = _mm_mul_ps(fscal,dx02);
1525 ty = _mm_mul_ps(fscal,dy02);
1526 tz = _mm_mul_ps(fscal,dz02);
1528 /* Update vectorial force */
1529 fix0 = _mm_add_ps(fix0,tx);
1530 fiy0 = _mm_add_ps(fiy0,ty);
1531 fiz0 = _mm_add_ps(fiz0,tz);
1533 fjx2 = _mm_add_ps(fjx2,tx);
1534 fjy2 = _mm_add_ps(fjy2,ty);
1535 fjz2 = _mm_add_ps(fjz2,tz);
1537 /**************************
1538 * CALCULATE INTERACTIONS *
1539 **************************/
1541 /* REACTION-FIELD ELECTROSTATICS */
1542 felec = _mm_mul_ps(qq10,_mm_sub_ps(_mm_mul_ps(rinv10,rinvsq10),krf2));
1546 fscal = _mm_andnot_ps(dummy_mask,fscal);
1548 /* Calculate temporary vectorial force */
1549 tx = _mm_mul_ps(fscal,dx10);
1550 ty = _mm_mul_ps(fscal,dy10);
1551 tz = _mm_mul_ps(fscal,dz10);
1553 /* Update vectorial force */
1554 fix1 = _mm_add_ps(fix1,tx);
1555 fiy1 = _mm_add_ps(fiy1,ty);
1556 fiz1 = _mm_add_ps(fiz1,tz);
1558 fjx0 = _mm_add_ps(fjx0,tx);
1559 fjy0 = _mm_add_ps(fjy0,ty);
1560 fjz0 = _mm_add_ps(fjz0,tz);
1562 /**************************
1563 * CALCULATE INTERACTIONS *
1564 **************************/
1566 /* REACTION-FIELD ELECTROSTATICS */
1567 felec = _mm_mul_ps(qq11,_mm_sub_ps(_mm_mul_ps(rinv11,rinvsq11),krf2));
1571 fscal = _mm_andnot_ps(dummy_mask,fscal);
1573 /* Calculate temporary vectorial force */
1574 tx = _mm_mul_ps(fscal,dx11);
1575 ty = _mm_mul_ps(fscal,dy11);
1576 tz = _mm_mul_ps(fscal,dz11);
1578 /* Update vectorial force */
1579 fix1 = _mm_add_ps(fix1,tx);
1580 fiy1 = _mm_add_ps(fiy1,ty);
1581 fiz1 = _mm_add_ps(fiz1,tz);
1583 fjx1 = _mm_add_ps(fjx1,tx);
1584 fjy1 = _mm_add_ps(fjy1,ty);
1585 fjz1 = _mm_add_ps(fjz1,tz);
1587 /**************************
1588 * CALCULATE INTERACTIONS *
1589 **************************/
1591 /* REACTION-FIELD ELECTROSTATICS */
1592 felec = _mm_mul_ps(qq12,_mm_sub_ps(_mm_mul_ps(rinv12,rinvsq12),krf2));
1596 fscal = _mm_andnot_ps(dummy_mask,fscal);
1598 /* Calculate temporary vectorial force */
1599 tx = _mm_mul_ps(fscal,dx12);
1600 ty = _mm_mul_ps(fscal,dy12);
1601 tz = _mm_mul_ps(fscal,dz12);
1603 /* Update vectorial force */
1604 fix1 = _mm_add_ps(fix1,tx);
1605 fiy1 = _mm_add_ps(fiy1,ty);
1606 fiz1 = _mm_add_ps(fiz1,tz);
1608 fjx2 = _mm_add_ps(fjx2,tx);
1609 fjy2 = _mm_add_ps(fjy2,ty);
1610 fjz2 = _mm_add_ps(fjz2,tz);
1612 /**************************
1613 * CALCULATE INTERACTIONS *
1614 **************************/
1616 /* REACTION-FIELD ELECTROSTATICS */
1617 felec = _mm_mul_ps(qq20,_mm_sub_ps(_mm_mul_ps(rinv20,rinvsq20),krf2));
1621 fscal = _mm_andnot_ps(dummy_mask,fscal);
1623 /* Calculate temporary vectorial force */
1624 tx = _mm_mul_ps(fscal,dx20);
1625 ty = _mm_mul_ps(fscal,dy20);
1626 tz = _mm_mul_ps(fscal,dz20);
1628 /* Update vectorial force */
1629 fix2 = _mm_add_ps(fix2,tx);
1630 fiy2 = _mm_add_ps(fiy2,ty);
1631 fiz2 = _mm_add_ps(fiz2,tz);
1633 fjx0 = _mm_add_ps(fjx0,tx);
1634 fjy0 = _mm_add_ps(fjy0,ty);
1635 fjz0 = _mm_add_ps(fjz0,tz);
1637 /**************************
1638 * CALCULATE INTERACTIONS *
1639 **************************/
1641 /* REACTION-FIELD ELECTROSTATICS */
1642 felec = _mm_mul_ps(qq21,_mm_sub_ps(_mm_mul_ps(rinv21,rinvsq21),krf2));
1646 fscal = _mm_andnot_ps(dummy_mask,fscal);
1648 /* Calculate temporary vectorial force */
1649 tx = _mm_mul_ps(fscal,dx21);
1650 ty = _mm_mul_ps(fscal,dy21);
1651 tz = _mm_mul_ps(fscal,dz21);
1653 /* Update vectorial force */
1654 fix2 = _mm_add_ps(fix2,tx);
1655 fiy2 = _mm_add_ps(fiy2,ty);
1656 fiz2 = _mm_add_ps(fiz2,tz);
1658 fjx1 = _mm_add_ps(fjx1,tx);
1659 fjy1 = _mm_add_ps(fjy1,ty);
1660 fjz1 = _mm_add_ps(fjz1,tz);
1662 /**************************
1663 * CALCULATE INTERACTIONS *
1664 **************************/
1666 /* REACTION-FIELD ELECTROSTATICS */
1667 felec = _mm_mul_ps(qq22,_mm_sub_ps(_mm_mul_ps(rinv22,rinvsq22),krf2));
1671 fscal = _mm_andnot_ps(dummy_mask,fscal);
1673 /* Calculate temporary vectorial force */
1674 tx = _mm_mul_ps(fscal,dx22);
1675 ty = _mm_mul_ps(fscal,dy22);
1676 tz = _mm_mul_ps(fscal,dz22);
1678 /* Update vectorial force */
1679 fix2 = _mm_add_ps(fix2,tx);
1680 fiy2 = _mm_add_ps(fiy2,ty);
1681 fiz2 = _mm_add_ps(fiz2,tz);
1683 fjx2 = _mm_add_ps(fjx2,tx);
1684 fjy2 = _mm_add_ps(fjy2,ty);
1685 fjz2 = _mm_add_ps(fjz2,tz);
1687 gmx_mm_decrement_3rvec_4ptr_swizzle_ps(f+j_coord_offsetA,f+j_coord_offsetB,
1688 f+j_coord_offsetC,f+j_coord_offsetD,
1689 fjx0,fjy0,fjz0,fjx1,fjy1,fjz1,fjx2,fjy2,fjz2);
1691 /* Inner loop uses 243 flops */
1694 /* End of innermost loop */
1696 gmx_mm_update_iforce_3atom_swizzle_ps(fix0,fiy0,fiz0,fix1,fiy1,fiz1,fix2,fiy2,fiz2,
1697 f+i_coord_offset,fshift+i_shift_offset);
1699 /* Increment number of inner iterations */
1700 inneriter += j_index_end - j_index_start;
1702 /* Outer loop uses 27 flops */
1705 /* Increment number of outer iterations */
1708 /* Update outer/inner flops */
1710 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_W3W3_F,outeriter*27 + inneriter*243);