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36 * Note: this file was generated by the GROMACS avx_256_single kernel generator.
44 #include "../nb_kernel.h"
45 #include "gromacs/gmxlib/nrnb.h"
47 #include "kernelutil_x86_avx_256_single.h"
50 * Gromacs nonbonded kernel: nb_kernel_ElecRF_VdwCSTab_GeomP1P1_VF_avx_256_single
51 * Electrostatics interaction: ReactionField
52 * VdW interaction: CubicSplineTable
53 * Geometry: Particle-Particle
54 * Calculate force/pot: PotentialAndForce
57 nb_kernel_ElecRF_VdwCSTab_GeomP1P1_VF_avx_256_single
58 (t_nblist * gmx_restrict nlist,
59 rvec * gmx_restrict xx,
60 rvec * gmx_restrict ff,
61 struct t_forcerec * gmx_restrict fr,
62 t_mdatoms * gmx_restrict mdatoms,
63 nb_kernel_data_t gmx_unused * gmx_restrict kernel_data,
64 t_nrnb * gmx_restrict nrnb)
66 /* Suffixes 0,1,2,3 refer to particle indices for waters in the inner or outer loop, or
67 * just 0 for non-waters.
68 * Suffixes A,B,C,D,E,F,G,H refer to j loop unrolling done with AVX, e.g. for the eight different
69 * jnr indices corresponding to data put in the four positions in the SIMD register.
71 int i_shift_offset,i_coord_offset,outeriter,inneriter;
72 int j_index_start,j_index_end,jidx,nri,inr,ggid,iidx;
73 int jnrA,jnrB,jnrC,jnrD;
74 int jnrE,jnrF,jnrG,jnrH;
75 int jnrlistA,jnrlistB,jnrlistC,jnrlistD;
76 int jnrlistE,jnrlistF,jnrlistG,jnrlistH;
77 int j_coord_offsetA,j_coord_offsetB,j_coord_offsetC,j_coord_offsetD;
78 int j_coord_offsetE,j_coord_offsetF,j_coord_offsetG,j_coord_offsetH;
79 int *iinr,*jindex,*jjnr,*shiftidx,*gid;
81 real *shiftvec,*fshift,*x,*f;
82 real *fjptrA,*fjptrB,*fjptrC,*fjptrD,*fjptrE,*fjptrF,*fjptrG,*fjptrH;
84 __m256 tx,ty,tz,fscal,rcutoff,rcutoff2,jidxall;
85 real * vdwioffsetptr0;
86 __m256 ix0,iy0,iz0,fix0,fiy0,fiz0,iq0,isai0;
87 int vdwjidx0A,vdwjidx0B,vdwjidx0C,vdwjidx0D,vdwjidx0E,vdwjidx0F,vdwjidx0G,vdwjidx0H;
88 __m256 jx0,jy0,jz0,fjx0,fjy0,fjz0,jq0,isaj0;
89 __m256 dx00,dy00,dz00,rsq00,rinv00,rinvsq00,r00,qq00,c6_00,c12_00;
90 __m256 velec,felec,velecsum,facel,crf,krf,krf2;
93 __m256 rinvsix,rvdw,vvdw,vvdw6,vvdw12,fvdw,fvdw6,fvdw12,vvdwsum,sh_vdw_invrcut6;
96 __m256 one_sixth = _mm256_set1_ps(1.0/6.0);
97 __m256 one_twelfth = _mm256_set1_ps(1.0/12.0);
99 __m128i vfitab_lo,vfitab_hi;
100 __m128i ifour = _mm_set1_epi32(4);
101 __m256 rt,vfeps,vftabscale,Y,F,G,H,Heps,Fp,VV,FF;
103 __m256 dummy_mask,cutoff_mask;
104 __m256 signbit = _mm256_castsi256_ps( _mm256_set1_epi32(0x80000000) );
105 __m256 one = _mm256_set1_ps(1.0);
106 __m256 two = _mm256_set1_ps(2.0);
112 jindex = nlist->jindex;
114 shiftidx = nlist->shift;
116 shiftvec = fr->shift_vec[0];
117 fshift = fr->fshift[0];
118 facel = _mm256_set1_ps(fr->ic->epsfac);
119 charge = mdatoms->chargeA;
120 krf = _mm256_set1_ps(fr->ic->k_rf);
121 krf2 = _mm256_set1_ps(fr->ic->k_rf*2.0);
122 crf = _mm256_set1_ps(fr->ic->c_rf);
123 nvdwtype = fr->ntype;
125 vdwtype = mdatoms->typeA;
127 vftab = kernel_data->table_vdw->data;
128 vftabscale = _mm256_set1_ps(kernel_data->table_vdw->scale);
130 /* Avoid stupid compiler warnings */
131 jnrA = jnrB = jnrC = jnrD = jnrE = jnrF = jnrG = jnrH = 0;
144 for(iidx=0;iidx<4*DIM;iidx++)
149 /* Start outer loop over neighborlists */
150 for(iidx=0; iidx<nri; iidx++)
152 /* Load shift vector for this list */
153 i_shift_offset = DIM*shiftidx[iidx];
155 /* Load limits for loop over neighbors */
156 j_index_start = jindex[iidx];
157 j_index_end = jindex[iidx+1];
159 /* Get outer coordinate index */
161 i_coord_offset = DIM*inr;
163 /* Load i particle coords and add shift vector */
164 gmx_mm256_load_shift_and_1rvec_broadcast_ps(shiftvec+i_shift_offset,x+i_coord_offset,&ix0,&iy0,&iz0);
166 fix0 = _mm256_setzero_ps();
167 fiy0 = _mm256_setzero_ps();
168 fiz0 = _mm256_setzero_ps();
170 /* Load parameters for i particles */
171 iq0 = _mm256_mul_ps(facel,_mm256_set1_ps(charge[inr+0]));
172 vdwioffsetptr0 = vdwparam+2*nvdwtype*vdwtype[inr+0];
174 /* Reset potential sums */
175 velecsum = _mm256_setzero_ps();
176 vvdwsum = _mm256_setzero_ps();
178 /* Start inner kernel loop */
179 for(jidx=j_index_start; jidx<j_index_end && jjnr[jidx+7]>=0; jidx+=8)
182 /* Get j neighbor index, and coordinate index */
191 j_coord_offsetA = DIM*jnrA;
192 j_coord_offsetB = DIM*jnrB;
193 j_coord_offsetC = DIM*jnrC;
194 j_coord_offsetD = DIM*jnrD;
195 j_coord_offsetE = DIM*jnrE;
196 j_coord_offsetF = DIM*jnrF;
197 j_coord_offsetG = DIM*jnrG;
198 j_coord_offsetH = DIM*jnrH;
200 /* load j atom coordinates */
201 gmx_mm256_load_1rvec_8ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB,
202 x+j_coord_offsetC,x+j_coord_offsetD,
203 x+j_coord_offsetE,x+j_coord_offsetF,
204 x+j_coord_offsetG,x+j_coord_offsetH,
207 /* Calculate displacement vector */
208 dx00 = _mm256_sub_ps(ix0,jx0);
209 dy00 = _mm256_sub_ps(iy0,jy0);
210 dz00 = _mm256_sub_ps(iz0,jz0);
212 /* Calculate squared distance and things based on it */
213 rsq00 = gmx_mm256_calc_rsq_ps(dx00,dy00,dz00);
215 rinv00 = avx256_invsqrt_f(rsq00);
217 rinvsq00 = _mm256_mul_ps(rinv00,rinv00);
219 /* Load parameters for j particles */
220 jq0 = gmx_mm256_load_8real_swizzle_ps(charge+jnrA+0,charge+jnrB+0,
221 charge+jnrC+0,charge+jnrD+0,
222 charge+jnrE+0,charge+jnrF+0,
223 charge+jnrG+0,charge+jnrH+0);
224 vdwjidx0A = 2*vdwtype[jnrA+0];
225 vdwjidx0B = 2*vdwtype[jnrB+0];
226 vdwjidx0C = 2*vdwtype[jnrC+0];
227 vdwjidx0D = 2*vdwtype[jnrD+0];
228 vdwjidx0E = 2*vdwtype[jnrE+0];
229 vdwjidx0F = 2*vdwtype[jnrF+0];
230 vdwjidx0G = 2*vdwtype[jnrG+0];
231 vdwjidx0H = 2*vdwtype[jnrH+0];
233 /**************************
234 * CALCULATE INTERACTIONS *
235 **************************/
237 r00 = _mm256_mul_ps(rsq00,rinv00);
239 /* Compute parameters for interactions between i and j atoms */
240 qq00 = _mm256_mul_ps(iq0,jq0);
241 gmx_mm256_load_8pair_swizzle_ps(vdwioffsetptr0+vdwjidx0A,
242 vdwioffsetptr0+vdwjidx0B,
243 vdwioffsetptr0+vdwjidx0C,
244 vdwioffsetptr0+vdwjidx0D,
245 vdwioffsetptr0+vdwjidx0E,
246 vdwioffsetptr0+vdwjidx0F,
247 vdwioffsetptr0+vdwjidx0G,
248 vdwioffsetptr0+vdwjidx0H,
251 /* Calculate table index by multiplying r with table scale and truncate to integer */
252 rt = _mm256_mul_ps(r00,vftabscale);
253 vfitab = _mm256_cvttps_epi32(rt);
254 vfeps = _mm256_sub_ps(rt,_mm256_round_ps(rt, _MM_FROUND_FLOOR));
255 /* AVX1 does not support 256-bit integer operations, so now we go to 128-bit mode... */
256 vfitab_lo = _mm256_extractf128_si256(vfitab,0x0);
257 vfitab_hi = _mm256_extractf128_si256(vfitab,0x1);
258 vfitab_lo = _mm_slli_epi32(vfitab_lo,3);
259 vfitab_hi = _mm_slli_epi32(vfitab_hi,3);
261 /* REACTION-FIELD ELECTROSTATICS */
262 velec = _mm256_mul_ps(qq00,_mm256_sub_ps(_mm256_add_ps(rinv00,_mm256_mul_ps(krf,rsq00)),crf));
263 felec = _mm256_mul_ps(qq00,_mm256_sub_ps(_mm256_mul_ps(rinv00,rinvsq00),krf2));
265 /* CUBIC SPLINE TABLE DISPERSION */
266 Y = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,0)),
267 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,0)));
268 F = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,1)),
269 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,1)));
270 G = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,2)),
271 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,2)));
272 H = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,3)),
273 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,3)));
274 GMX_MM256_HALFTRANSPOSE4_PS(Y,F,G,H);
275 Heps = _mm256_mul_ps(vfeps,H);
276 Fp = _mm256_add_ps(F,_mm256_mul_ps(vfeps,_mm256_add_ps(G,Heps)));
277 VV = _mm256_add_ps(Y,_mm256_mul_ps(vfeps,Fp));
278 vvdw6 = _mm256_mul_ps(c6_00,VV);
279 FF = _mm256_add_ps(Fp,_mm256_mul_ps(vfeps,_mm256_add_ps(G,_mm256_add_ps(Heps,Heps))));
280 fvdw6 = _mm256_mul_ps(c6_00,FF);
282 /* CUBIC SPLINE TABLE REPULSION */
283 vfitab_lo = _mm_add_epi32(vfitab_lo,ifour);
284 vfitab_hi = _mm_add_epi32(vfitab_hi,ifour);
285 Y = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,0)),
286 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,0)));
287 F = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,1)),
288 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,1)));
289 G = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,2)),
290 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,2)));
291 H = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,3)),
292 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,3)));
293 GMX_MM256_HALFTRANSPOSE4_PS(Y,F,G,H);
294 Heps = _mm256_mul_ps(vfeps,H);
295 Fp = _mm256_add_ps(F,_mm256_mul_ps(vfeps,_mm256_add_ps(G,Heps)));
296 VV = _mm256_add_ps(Y,_mm256_mul_ps(vfeps,Fp));
297 vvdw12 = _mm256_mul_ps(c12_00,VV);
298 FF = _mm256_add_ps(Fp,_mm256_mul_ps(vfeps,_mm256_add_ps(G,_mm256_add_ps(Heps,Heps))));
299 fvdw12 = _mm256_mul_ps(c12_00,FF);
300 vvdw = _mm256_add_ps(vvdw12,vvdw6);
301 fvdw = _mm256_xor_ps(signbit,_mm256_mul_ps(_mm256_add_ps(fvdw6,fvdw12),_mm256_mul_ps(vftabscale,rinv00)));
303 /* Update potential sum for this i atom from the interaction with this j atom. */
304 velecsum = _mm256_add_ps(velecsum,velec);
305 vvdwsum = _mm256_add_ps(vvdwsum,vvdw);
307 fscal = _mm256_add_ps(felec,fvdw);
309 /* Calculate temporary vectorial force */
310 tx = _mm256_mul_ps(fscal,dx00);
311 ty = _mm256_mul_ps(fscal,dy00);
312 tz = _mm256_mul_ps(fscal,dz00);
314 /* Update vectorial force */
315 fix0 = _mm256_add_ps(fix0,tx);
316 fiy0 = _mm256_add_ps(fiy0,ty);
317 fiz0 = _mm256_add_ps(fiz0,tz);
319 fjptrA = f+j_coord_offsetA;
320 fjptrB = f+j_coord_offsetB;
321 fjptrC = f+j_coord_offsetC;
322 fjptrD = f+j_coord_offsetD;
323 fjptrE = f+j_coord_offsetE;
324 fjptrF = f+j_coord_offsetF;
325 fjptrG = f+j_coord_offsetG;
326 fjptrH = f+j_coord_offsetH;
327 gmx_mm256_decrement_1rvec_8ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,fjptrE,fjptrF,fjptrG,fjptrH,tx,ty,tz);
329 /* Inner loop uses 67 flops */
335 /* Get j neighbor index, and coordinate index */
336 jnrlistA = jjnr[jidx];
337 jnrlistB = jjnr[jidx+1];
338 jnrlistC = jjnr[jidx+2];
339 jnrlistD = jjnr[jidx+3];
340 jnrlistE = jjnr[jidx+4];
341 jnrlistF = jjnr[jidx+5];
342 jnrlistG = jjnr[jidx+6];
343 jnrlistH = jjnr[jidx+7];
344 /* Sign of each element will be negative for non-real atoms.
345 * This mask will be 0xFFFFFFFF for dummy entries and 0x0 for real ones,
346 * so use it as val = _mm_andnot_ps(mask,val) to clear dummy entries.
348 dummy_mask = gmx_mm256_set_m128(gmx_mm_castsi128_ps(_mm_cmplt_epi32(_mm_loadu_si128((const __m128i *)(jjnr+jidx+4)),_mm_setzero_si128())),
349 gmx_mm_castsi128_ps(_mm_cmplt_epi32(_mm_loadu_si128((const __m128i *)(jjnr+jidx)),_mm_setzero_si128())));
351 jnrA = (jnrlistA>=0) ? jnrlistA : 0;
352 jnrB = (jnrlistB>=0) ? jnrlistB : 0;
353 jnrC = (jnrlistC>=0) ? jnrlistC : 0;
354 jnrD = (jnrlistD>=0) ? jnrlistD : 0;
355 jnrE = (jnrlistE>=0) ? jnrlistE : 0;
356 jnrF = (jnrlistF>=0) ? jnrlistF : 0;
357 jnrG = (jnrlistG>=0) ? jnrlistG : 0;
358 jnrH = (jnrlistH>=0) ? jnrlistH : 0;
359 j_coord_offsetA = DIM*jnrA;
360 j_coord_offsetB = DIM*jnrB;
361 j_coord_offsetC = DIM*jnrC;
362 j_coord_offsetD = DIM*jnrD;
363 j_coord_offsetE = DIM*jnrE;
364 j_coord_offsetF = DIM*jnrF;
365 j_coord_offsetG = DIM*jnrG;
366 j_coord_offsetH = DIM*jnrH;
368 /* load j atom coordinates */
369 gmx_mm256_load_1rvec_8ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB,
370 x+j_coord_offsetC,x+j_coord_offsetD,
371 x+j_coord_offsetE,x+j_coord_offsetF,
372 x+j_coord_offsetG,x+j_coord_offsetH,
375 /* Calculate displacement vector */
376 dx00 = _mm256_sub_ps(ix0,jx0);
377 dy00 = _mm256_sub_ps(iy0,jy0);
378 dz00 = _mm256_sub_ps(iz0,jz0);
380 /* Calculate squared distance and things based on it */
381 rsq00 = gmx_mm256_calc_rsq_ps(dx00,dy00,dz00);
383 rinv00 = avx256_invsqrt_f(rsq00);
385 rinvsq00 = _mm256_mul_ps(rinv00,rinv00);
387 /* Load parameters for j particles */
388 jq0 = gmx_mm256_load_8real_swizzle_ps(charge+jnrA+0,charge+jnrB+0,
389 charge+jnrC+0,charge+jnrD+0,
390 charge+jnrE+0,charge+jnrF+0,
391 charge+jnrG+0,charge+jnrH+0);
392 vdwjidx0A = 2*vdwtype[jnrA+0];
393 vdwjidx0B = 2*vdwtype[jnrB+0];
394 vdwjidx0C = 2*vdwtype[jnrC+0];
395 vdwjidx0D = 2*vdwtype[jnrD+0];
396 vdwjidx0E = 2*vdwtype[jnrE+0];
397 vdwjidx0F = 2*vdwtype[jnrF+0];
398 vdwjidx0G = 2*vdwtype[jnrG+0];
399 vdwjidx0H = 2*vdwtype[jnrH+0];
401 /**************************
402 * CALCULATE INTERACTIONS *
403 **************************/
405 r00 = _mm256_mul_ps(rsq00,rinv00);
406 r00 = _mm256_andnot_ps(dummy_mask,r00);
408 /* Compute parameters for interactions between i and j atoms */
409 qq00 = _mm256_mul_ps(iq0,jq0);
410 gmx_mm256_load_8pair_swizzle_ps(vdwioffsetptr0+vdwjidx0A,
411 vdwioffsetptr0+vdwjidx0B,
412 vdwioffsetptr0+vdwjidx0C,
413 vdwioffsetptr0+vdwjidx0D,
414 vdwioffsetptr0+vdwjidx0E,
415 vdwioffsetptr0+vdwjidx0F,
416 vdwioffsetptr0+vdwjidx0G,
417 vdwioffsetptr0+vdwjidx0H,
420 /* Calculate table index by multiplying r with table scale and truncate to integer */
421 rt = _mm256_mul_ps(r00,vftabscale);
422 vfitab = _mm256_cvttps_epi32(rt);
423 vfeps = _mm256_sub_ps(rt,_mm256_round_ps(rt, _MM_FROUND_FLOOR));
424 /* AVX1 does not support 256-bit integer operations, so now we go to 128-bit mode... */
425 vfitab_lo = _mm256_extractf128_si256(vfitab,0x0);
426 vfitab_hi = _mm256_extractf128_si256(vfitab,0x1);
427 vfitab_lo = _mm_slli_epi32(vfitab_lo,3);
428 vfitab_hi = _mm_slli_epi32(vfitab_hi,3);
430 /* REACTION-FIELD ELECTROSTATICS */
431 velec = _mm256_mul_ps(qq00,_mm256_sub_ps(_mm256_add_ps(rinv00,_mm256_mul_ps(krf,rsq00)),crf));
432 felec = _mm256_mul_ps(qq00,_mm256_sub_ps(_mm256_mul_ps(rinv00,rinvsq00),krf2));
434 /* CUBIC SPLINE TABLE DISPERSION */
435 Y = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,0)),
436 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,0)));
437 F = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,1)),
438 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,1)));
439 G = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,2)),
440 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,2)));
441 H = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,3)),
442 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,3)));
443 GMX_MM256_HALFTRANSPOSE4_PS(Y,F,G,H);
444 Heps = _mm256_mul_ps(vfeps,H);
445 Fp = _mm256_add_ps(F,_mm256_mul_ps(vfeps,_mm256_add_ps(G,Heps)));
446 VV = _mm256_add_ps(Y,_mm256_mul_ps(vfeps,Fp));
447 vvdw6 = _mm256_mul_ps(c6_00,VV);
448 FF = _mm256_add_ps(Fp,_mm256_mul_ps(vfeps,_mm256_add_ps(G,_mm256_add_ps(Heps,Heps))));
449 fvdw6 = _mm256_mul_ps(c6_00,FF);
451 /* CUBIC SPLINE TABLE REPULSION */
452 vfitab_lo = _mm_add_epi32(vfitab_lo,ifour);
453 vfitab_hi = _mm_add_epi32(vfitab_hi,ifour);
454 Y = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,0)),
455 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,0)));
456 F = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,1)),
457 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,1)));
458 G = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,2)),
459 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,2)));
460 H = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,3)),
461 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,3)));
462 GMX_MM256_HALFTRANSPOSE4_PS(Y,F,G,H);
463 Heps = _mm256_mul_ps(vfeps,H);
464 Fp = _mm256_add_ps(F,_mm256_mul_ps(vfeps,_mm256_add_ps(G,Heps)));
465 VV = _mm256_add_ps(Y,_mm256_mul_ps(vfeps,Fp));
466 vvdw12 = _mm256_mul_ps(c12_00,VV);
467 FF = _mm256_add_ps(Fp,_mm256_mul_ps(vfeps,_mm256_add_ps(G,_mm256_add_ps(Heps,Heps))));
468 fvdw12 = _mm256_mul_ps(c12_00,FF);
469 vvdw = _mm256_add_ps(vvdw12,vvdw6);
470 fvdw = _mm256_xor_ps(signbit,_mm256_mul_ps(_mm256_add_ps(fvdw6,fvdw12),_mm256_mul_ps(vftabscale,rinv00)));
472 /* Update potential sum for this i atom from the interaction with this j atom. */
473 velec = _mm256_andnot_ps(dummy_mask,velec);
474 velecsum = _mm256_add_ps(velecsum,velec);
475 vvdw = _mm256_andnot_ps(dummy_mask,vvdw);
476 vvdwsum = _mm256_add_ps(vvdwsum,vvdw);
478 fscal = _mm256_add_ps(felec,fvdw);
480 fscal = _mm256_andnot_ps(dummy_mask,fscal);
482 /* Calculate temporary vectorial force */
483 tx = _mm256_mul_ps(fscal,dx00);
484 ty = _mm256_mul_ps(fscal,dy00);
485 tz = _mm256_mul_ps(fscal,dz00);
487 /* Update vectorial force */
488 fix0 = _mm256_add_ps(fix0,tx);
489 fiy0 = _mm256_add_ps(fiy0,ty);
490 fiz0 = _mm256_add_ps(fiz0,tz);
492 fjptrA = (jnrlistA>=0) ? f+j_coord_offsetA : scratch;
493 fjptrB = (jnrlistB>=0) ? f+j_coord_offsetB : scratch;
494 fjptrC = (jnrlistC>=0) ? f+j_coord_offsetC : scratch;
495 fjptrD = (jnrlistD>=0) ? f+j_coord_offsetD : scratch;
496 fjptrE = (jnrlistE>=0) ? f+j_coord_offsetE : scratch;
497 fjptrF = (jnrlistF>=0) ? f+j_coord_offsetF : scratch;
498 fjptrG = (jnrlistG>=0) ? f+j_coord_offsetG : scratch;
499 fjptrH = (jnrlistH>=0) ? f+j_coord_offsetH : scratch;
500 gmx_mm256_decrement_1rvec_8ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,fjptrE,fjptrF,fjptrG,fjptrH,tx,ty,tz);
502 /* Inner loop uses 68 flops */
505 /* End of innermost loop */
507 gmx_mm256_update_iforce_1atom_swizzle_ps(fix0,fiy0,fiz0,
508 f+i_coord_offset,fshift+i_shift_offset);
511 /* Update potential energies */
512 gmx_mm256_update_1pot_ps(velecsum,kernel_data->energygrp_elec+ggid);
513 gmx_mm256_update_1pot_ps(vvdwsum,kernel_data->energygrp_vdw+ggid);
515 /* Increment number of inner iterations */
516 inneriter += j_index_end - j_index_start;
518 /* Outer loop uses 9 flops */
521 /* Increment number of outer iterations */
524 /* Update outer/inner flops */
526 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_VDW_VF,outeriter*9 + inneriter*68);
529 * Gromacs nonbonded kernel: nb_kernel_ElecRF_VdwCSTab_GeomP1P1_F_avx_256_single
530 * Electrostatics interaction: ReactionField
531 * VdW interaction: CubicSplineTable
532 * Geometry: Particle-Particle
533 * Calculate force/pot: Force
536 nb_kernel_ElecRF_VdwCSTab_GeomP1P1_F_avx_256_single
537 (t_nblist * gmx_restrict nlist,
538 rvec * gmx_restrict xx,
539 rvec * gmx_restrict ff,
540 struct t_forcerec * gmx_restrict fr,
541 t_mdatoms * gmx_restrict mdatoms,
542 nb_kernel_data_t gmx_unused * gmx_restrict kernel_data,
543 t_nrnb * gmx_restrict nrnb)
545 /* Suffixes 0,1,2,3 refer to particle indices for waters in the inner or outer loop, or
546 * just 0 for non-waters.
547 * Suffixes A,B,C,D,E,F,G,H refer to j loop unrolling done with AVX, e.g. for the eight different
548 * jnr indices corresponding to data put in the four positions in the SIMD register.
550 int i_shift_offset,i_coord_offset,outeriter,inneriter;
551 int j_index_start,j_index_end,jidx,nri,inr,ggid,iidx;
552 int jnrA,jnrB,jnrC,jnrD;
553 int jnrE,jnrF,jnrG,jnrH;
554 int jnrlistA,jnrlistB,jnrlistC,jnrlistD;
555 int jnrlistE,jnrlistF,jnrlistG,jnrlistH;
556 int j_coord_offsetA,j_coord_offsetB,j_coord_offsetC,j_coord_offsetD;
557 int j_coord_offsetE,j_coord_offsetF,j_coord_offsetG,j_coord_offsetH;
558 int *iinr,*jindex,*jjnr,*shiftidx,*gid;
560 real *shiftvec,*fshift,*x,*f;
561 real *fjptrA,*fjptrB,*fjptrC,*fjptrD,*fjptrE,*fjptrF,*fjptrG,*fjptrH;
563 __m256 tx,ty,tz,fscal,rcutoff,rcutoff2,jidxall;
564 real * vdwioffsetptr0;
565 __m256 ix0,iy0,iz0,fix0,fiy0,fiz0,iq0,isai0;
566 int vdwjidx0A,vdwjidx0B,vdwjidx0C,vdwjidx0D,vdwjidx0E,vdwjidx0F,vdwjidx0G,vdwjidx0H;
567 __m256 jx0,jy0,jz0,fjx0,fjy0,fjz0,jq0,isaj0;
568 __m256 dx00,dy00,dz00,rsq00,rinv00,rinvsq00,r00,qq00,c6_00,c12_00;
569 __m256 velec,felec,velecsum,facel,crf,krf,krf2;
572 __m256 rinvsix,rvdw,vvdw,vvdw6,vvdw12,fvdw,fvdw6,fvdw12,vvdwsum,sh_vdw_invrcut6;
575 __m256 one_sixth = _mm256_set1_ps(1.0/6.0);
576 __m256 one_twelfth = _mm256_set1_ps(1.0/12.0);
578 __m128i vfitab_lo,vfitab_hi;
579 __m128i ifour = _mm_set1_epi32(4);
580 __m256 rt,vfeps,vftabscale,Y,F,G,H,Heps,Fp,VV,FF;
582 __m256 dummy_mask,cutoff_mask;
583 __m256 signbit = _mm256_castsi256_ps( _mm256_set1_epi32(0x80000000) );
584 __m256 one = _mm256_set1_ps(1.0);
585 __m256 two = _mm256_set1_ps(2.0);
591 jindex = nlist->jindex;
593 shiftidx = nlist->shift;
595 shiftvec = fr->shift_vec[0];
596 fshift = fr->fshift[0];
597 facel = _mm256_set1_ps(fr->ic->epsfac);
598 charge = mdatoms->chargeA;
599 krf = _mm256_set1_ps(fr->ic->k_rf);
600 krf2 = _mm256_set1_ps(fr->ic->k_rf*2.0);
601 crf = _mm256_set1_ps(fr->ic->c_rf);
602 nvdwtype = fr->ntype;
604 vdwtype = mdatoms->typeA;
606 vftab = kernel_data->table_vdw->data;
607 vftabscale = _mm256_set1_ps(kernel_data->table_vdw->scale);
609 /* Avoid stupid compiler warnings */
610 jnrA = jnrB = jnrC = jnrD = jnrE = jnrF = jnrG = jnrH = 0;
623 for(iidx=0;iidx<4*DIM;iidx++)
628 /* Start outer loop over neighborlists */
629 for(iidx=0; iidx<nri; iidx++)
631 /* Load shift vector for this list */
632 i_shift_offset = DIM*shiftidx[iidx];
634 /* Load limits for loop over neighbors */
635 j_index_start = jindex[iidx];
636 j_index_end = jindex[iidx+1];
638 /* Get outer coordinate index */
640 i_coord_offset = DIM*inr;
642 /* Load i particle coords and add shift vector */
643 gmx_mm256_load_shift_and_1rvec_broadcast_ps(shiftvec+i_shift_offset,x+i_coord_offset,&ix0,&iy0,&iz0);
645 fix0 = _mm256_setzero_ps();
646 fiy0 = _mm256_setzero_ps();
647 fiz0 = _mm256_setzero_ps();
649 /* Load parameters for i particles */
650 iq0 = _mm256_mul_ps(facel,_mm256_set1_ps(charge[inr+0]));
651 vdwioffsetptr0 = vdwparam+2*nvdwtype*vdwtype[inr+0];
653 /* Start inner kernel loop */
654 for(jidx=j_index_start; jidx<j_index_end && jjnr[jidx+7]>=0; jidx+=8)
657 /* Get j neighbor index, and coordinate index */
666 j_coord_offsetA = DIM*jnrA;
667 j_coord_offsetB = DIM*jnrB;
668 j_coord_offsetC = DIM*jnrC;
669 j_coord_offsetD = DIM*jnrD;
670 j_coord_offsetE = DIM*jnrE;
671 j_coord_offsetF = DIM*jnrF;
672 j_coord_offsetG = DIM*jnrG;
673 j_coord_offsetH = DIM*jnrH;
675 /* load j atom coordinates */
676 gmx_mm256_load_1rvec_8ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB,
677 x+j_coord_offsetC,x+j_coord_offsetD,
678 x+j_coord_offsetE,x+j_coord_offsetF,
679 x+j_coord_offsetG,x+j_coord_offsetH,
682 /* Calculate displacement vector */
683 dx00 = _mm256_sub_ps(ix0,jx0);
684 dy00 = _mm256_sub_ps(iy0,jy0);
685 dz00 = _mm256_sub_ps(iz0,jz0);
687 /* Calculate squared distance and things based on it */
688 rsq00 = gmx_mm256_calc_rsq_ps(dx00,dy00,dz00);
690 rinv00 = avx256_invsqrt_f(rsq00);
692 rinvsq00 = _mm256_mul_ps(rinv00,rinv00);
694 /* Load parameters for j particles */
695 jq0 = gmx_mm256_load_8real_swizzle_ps(charge+jnrA+0,charge+jnrB+0,
696 charge+jnrC+0,charge+jnrD+0,
697 charge+jnrE+0,charge+jnrF+0,
698 charge+jnrG+0,charge+jnrH+0);
699 vdwjidx0A = 2*vdwtype[jnrA+0];
700 vdwjidx0B = 2*vdwtype[jnrB+0];
701 vdwjidx0C = 2*vdwtype[jnrC+0];
702 vdwjidx0D = 2*vdwtype[jnrD+0];
703 vdwjidx0E = 2*vdwtype[jnrE+0];
704 vdwjidx0F = 2*vdwtype[jnrF+0];
705 vdwjidx0G = 2*vdwtype[jnrG+0];
706 vdwjidx0H = 2*vdwtype[jnrH+0];
708 /**************************
709 * CALCULATE INTERACTIONS *
710 **************************/
712 r00 = _mm256_mul_ps(rsq00,rinv00);
714 /* Compute parameters for interactions between i and j atoms */
715 qq00 = _mm256_mul_ps(iq0,jq0);
716 gmx_mm256_load_8pair_swizzle_ps(vdwioffsetptr0+vdwjidx0A,
717 vdwioffsetptr0+vdwjidx0B,
718 vdwioffsetptr0+vdwjidx0C,
719 vdwioffsetptr0+vdwjidx0D,
720 vdwioffsetptr0+vdwjidx0E,
721 vdwioffsetptr0+vdwjidx0F,
722 vdwioffsetptr0+vdwjidx0G,
723 vdwioffsetptr0+vdwjidx0H,
726 /* Calculate table index by multiplying r with table scale and truncate to integer */
727 rt = _mm256_mul_ps(r00,vftabscale);
728 vfitab = _mm256_cvttps_epi32(rt);
729 vfeps = _mm256_sub_ps(rt,_mm256_round_ps(rt, _MM_FROUND_FLOOR));
730 /* AVX1 does not support 256-bit integer operations, so now we go to 128-bit mode... */
731 vfitab_lo = _mm256_extractf128_si256(vfitab,0x0);
732 vfitab_hi = _mm256_extractf128_si256(vfitab,0x1);
733 vfitab_lo = _mm_slli_epi32(vfitab_lo,3);
734 vfitab_hi = _mm_slli_epi32(vfitab_hi,3);
736 /* REACTION-FIELD ELECTROSTATICS */
737 felec = _mm256_mul_ps(qq00,_mm256_sub_ps(_mm256_mul_ps(rinv00,rinvsq00),krf2));
739 /* CUBIC SPLINE TABLE DISPERSION */
740 Y = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,0)),
741 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,0)));
742 F = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,1)),
743 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,1)));
744 G = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,2)),
745 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,2)));
746 H = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,3)),
747 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,3)));
748 GMX_MM256_HALFTRANSPOSE4_PS(Y,F,G,H);
749 Heps = _mm256_mul_ps(vfeps,H);
750 Fp = _mm256_add_ps(F,_mm256_mul_ps(vfeps,_mm256_add_ps(G,Heps)));
751 FF = _mm256_add_ps(Fp,_mm256_mul_ps(vfeps,_mm256_add_ps(G,_mm256_add_ps(Heps,Heps))));
752 fvdw6 = _mm256_mul_ps(c6_00,FF);
754 /* CUBIC SPLINE TABLE REPULSION */
755 vfitab_lo = _mm_add_epi32(vfitab_lo,ifour);
756 vfitab_hi = _mm_add_epi32(vfitab_hi,ifour);
757 Y = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,0)),
758 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,0)));
759 F = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,1)),
760 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,1)));
761 G = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,2)),
762 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,2)));
763 H = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,3)),
764 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,3)));
765 GMX_MM256_HALFTRANSPOSE4_PS(Y,F,G,H);
766 Heps = _mm256_mul_ps(vfeps,H);
767 Fp = _mm256_add_ps(F,_mm256_mul_ps(vfeps,_mm256_add_ps(G,Heps)));
768 FF = _mm256_add_ps(Fp,_mm256_mul_ps(vfeps,_mm256_add_ps(G,_mm256_add_ps(Heps,Heps))));
769 fvdw12 = _mm256_mul_ps(c12_00,FF);
770 fvdw = _mm256_xor_ps(signbit,_mm256_mul_ps(_mm256_add_ps(fvdw6,fvdw12),_mm256_mul_ps(vftabscale,rinv00)));
772 fscal = _mm256_add_ps(felec,fvdw);
774 /* Calculate temporary vectorial force */
775 tx = _mm256_mul_ps(fscal,dx00);
776 ty = _mm256_mul_ps(fscal,dy00);
777 tz = _mm256_mul_ps(fscal,dz00);
779 /* Update vectorial force */
780 fix0 = _mm256_add_ps(fix0,tx);
781 fiy0 = _mm256_add_ps(fiy0,ty);
782 fiz0 = _mm256_add_ps(fiz0,tz);
784 fjptrA = f+j_coord_offsetA;
785 fjptrB = f+j_coord_offsetB;
786 fjptrC = f+j_coord_offsetC;
787 fjptrD = f+j_coord_offsetD;
788 fjptrE = f+j_coord_offsetE;
789 fjptrF = f+j_coord_offsetF;
790 fjptrG = f+j_coord_offsetG;
791 fjptrH = f+j_coord_offsetH;
792 gmx_mm256_decrement_1rvec_8ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,fjptrE,fjptrF,fjptrG,fjptrH,tx,ty,tz);
794 /* Inner loop uses 54 flops */
800 /* Get j neighbor index, and coordinate index */
801 jnrlistA = jjnr[jidx];
802 jnrlistB = jjnr[jidx+1];
803 jnrlistC = jjnr[jidx+2];
804 jnrlistD = jjnr[jidx+3];
805 jnrlistE = jjnr[jidx+4];
806 jnrlistF = jjnr[jidx+5];
807 jnrlistG = jjnr[jidx+6];
808 jnrlistH = jjnr[jidx+7];
809 /* Sign of each element will be negative for non-real atoms.
810 * This mask will be 0xFFFFFFFF for dummy entries and 0x0 for real ones,
811 * so use it as val = _mm_andnot_ps(mask,val) to clear dummy entries.
813 dummy_mask = gmx_mm256_set_m128(gmx_mm_castsi128_ps(_mm_cmplt_epi32(_mm_loadu_si128((const __m128i *)(jjnr+jidx+4)),_mm_setzero_si128())),
814 gmx_mm_castsi128_ps(_mm_cmplt_epi32(_mm_loadu_si128((const __m128i *)(jjnr+jidx)),_mm_setzero_si128())));
816 jnrA = (jnrlistA>=0) ? jnrlistA : 0;
817 jnrB = (jnrlistB>=0) ? jnrlistB : 0;
818 jnrC = (jnrlistC>=0) ? jnrlistC : 0;
819 jnrD = (jnrlistD>=0) ? jnrlistD : 0;
820 jnrE = (jnrlistE>=0) ? jnrlistE : 0;
821 jnrF = (jnrlistF>=0) ? jnrlistF : 0;
822 jnrG = (jnrlistG>=0) ? jnrlistG : 0;
823 jnrH = (jnrlistH>=0) ? jnrlistH : 0;
824 j_coord_offsetA = DIM*jnrA;
825 j_coord_offsetB = DIM*jnrB;
826 j_coord_offsetC = DIM*jnrC;
827 j_coord_offsetD = DIM*jnrD;
828 j_coord_offsetE = DIM*jnrE;
829 j_coord_offsetF = DIM*jnrF;
830 j_coord_offsetG = DIM*jnrG;
831 j_coord_offsetH = DIM*jnrH;
833 /* load j atom coordinates */
834 gmx_mm256_load_1rvec_8ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB,
835 x+j_coord_offsetC,x+j_coord_offsetD,
836 x+j_coord_offsetE,x+j_coord_offsetF,
837 x+j_coord_offsetG,x+j_coord_offsetH,
840 /* Calculate displacement vector */
841 dx00 = _mm256_sub_ps(ix0,jx0);
842 dy00 = _mm256_sub_ps(iy0,jy0);
843 dz00 = _mm256_sub_ps(iz0,jz0);
845 /* Calculate squared distance and things based on it */
846 rsq00 = gmx_mm256_calc_rsq_ps(dx00,dy00,dz00);
848 rinv00 = avx256_invsqrt_f(rsq00);
850 rinvsq00 = _mm256_mul_ps(rinv00,rinv00);
852 /* Load parameters for j particles */
853 jq0 = gmx_mm256_load_8real_swizzle_ps(charge+jnrA+0,charge+jnrB+0,
854 charge+jnrC+0,charge+jnrD+0,
855 charge+jnrE+0,charge+jnrF+0,
856 charge+jnrG+0,charge+jnrH+0);
857 vdwjidx0A = 2*vdwtype[jnrA+0];
858 vdwjidx0B = 2*vdwtype[jnrB+0];
859 vdwjidx0C = 2*vdwtype[jnrC+0];
860 vdwjidx0D = 2*vdwtype[jnrD+0];
861 vdwjidx0E = 2*vdwtype[jnrE+0];
862 vdwjidx0F = 2*vdwtype[jnrF+0];
863 vdwjidx0G = 2*vdwtype[jnrG+0];
864 vdwjidx0H = 2*vdwtype[jnrH+0];
866 /**************************
867 * CALCULATE INTERACTIONS *
868 **************************/
870 r00 = _mm256_mul_ps(rsq00,rinv00);
871 r00 = _mm256_andnot_ps(dummy_mask,r00);
873 /* Compute parameters for interactions between i and j atoms */
874 qq00 = _mm256_mul_ps(iq0,jq0);
875 gmx_mm256_load_8pair_swizzle_ps(vdwioffsetptr0+vdwjidx0A,
876 vdwioffsetptr0+vdwjidx0B,
877 vdwioffsetptr0+vdwjidx0C,
878 vdwioffsetptr0+vdwjidx0D,
879 vdwioffsetptr0+vdwjidx0E,
880 vdwioffsetptr0+vdwjidx0F,
881 vdwioffsetptr0+vdwjidx0G,
882 vdwioffsetptr0+vdwjidx0H,
885 /* Calculate table index by multiplying r with table scale and truncate to integer */
886 rt = _mm256_mul_ps(r00,vftabscale);
887 vfitab = _mm256_cvttps_epi32(rt);
888 vfeps = _mm256_sub_ps(rt,_mm256_round_ps(rt, _MM_FROUND_FLOOR));
889 /* AVX1 does not support 256-bit integer operations, so now we go to 128-bit mode... */
890 vfitab_lo = _mm256_extractf128_si256(vfitab,0x0);
891 vfitab_hi = _mm256_extractf128_si256(vfitab,0x1);
892 vfitab_lo = _mm_slli_epi32(vfitab_lo,3);
893 vfitab_hi = _mm_slli_epi32(vfitab_hi,3);
895 /* REACTION-FIELD ELECTROSTATICS */
896 felec = _mm256_mul_ps(qq00,_mm256_sub_ps(_mm256_mul_ps(rinv00,rinvsq00),krf2));
898 /* CUBIC SPLINE TABLE DISPERSION */
899 Y = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,0)),
900 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,0)));
901 F = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,1)),
902 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,1)));
903 G = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,2)),
904 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,2)));
905 H = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,3)),
906 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,3)));
907 GMX_MM256_HALFTRANSPOSE4_PS(Y,F,G,H);
908 Heps = _mm256_mul_ps(vfeps,H);
909 Fp = _mm256_add_ps(F,_mm256_mul_ps(vfeps,_mm256_add_ps(G,Heps)));
910 FF = _mm256_add_ps(Fp,_mm256_mul_ps(vfeps,_mm256_add_ps(G,_mm256_add_ps(Heps,Heps))));
911 fvdw6 = _mm256_mul_ps(c6_00,FF);
913 /* CUBIC SPLINE TABLE REPULSION */
914 vfitab_lo = _mm_add_epi32(vfitab_lo,ifour);
915 vfitab_hi = _mm_add_epi32(vfitab_hi,ifour);
916 Y = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,0)),
917 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,0)));
918 F = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,1)),
919 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,1)));
920 G = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,2)),
921 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,2)));
922 H = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,3)),
923 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,3)));
924 GMX_MM256_HALFTRANSPOSE4_PS(Y,F,G,H);
925 Heps = _mm256_mul_ps(vfeps,H);
926 Fp = _mm256_add_ps(F,_mm256_mul_ps(vfeps,_mm256_add_ps(G,Heps)));
927 FF = _mm256_add_ps(Fp,_mm256_mul_ps(vfeps,_mm256_add_ps(G,_mm256_add_ps(Heps,Heps))));
928 fvdw12 = _mm256_mul_ps(c12_00,FF);
929 fvdw = _mm256_xor_ps(signbit,_mm256_mul_ps(_mm256_add_ps(fvdw6,fvdw12),_mm256_mul_ps(vftabscale,rinv00)));
931 fscal = _mm256_add_ps(felec,fvdw);
933 fscal = _mm256_andnot_ps(dummy_mask,fscal);
935 /* Calculate temporary vectorial force */
936 tx = _mm256_mul_ps(fscal,dx00);
937 ty = _mm256_mul_ps(fscal,dy00);
938 tz = _mm256_mul_ps(fscal,dz00);
940 /* Update vectorial force */
941 fix0 = _mm256_add_ps(fix0,tx);
942 fiy0 = _mm256_add_ps(fiy0,ty);
943 fiz0 = _mm256_add_ps(fiz0,tz);
945 fjptrA = (jnrlistA>=0) ? f+j_coord_offsetA : scratch;
946 fjptrB = (jnrlistB>=0) ? f+j_coord_offsetB : scratch;
947 fjptrC = (jnrlistC>=0) ? f+j_coord_offsetC : scratch;
948 fjptrD = (jnrlistD>=0) ? f+j_coord_offsetD : scratch;
949 fjptrE = (jnrlistE>=0) ? f+j_coord_offsetE : scratch;
950 fjptrF = (jnrlistF>=0) ? f+j_coord_offsetF : scratch;
951 fjptrG = (jnrlistG>=0) ? f+j_coord_offsetG : scratch;
952 fjptrH = (jnrlistH>=0) ? f+j_coord_offsetH : scratch;
953 gmx_mm256_decrement_1rvec_8ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,fjptrE,fjptrF,fjptrG,fjptrH,tx,ty,tz);
955 /* Inner loop uses 55 flops */
958 /* End of innermost loop */
960 gmx_mm256_update_iforce_1atom_swizzle_ps(fix0,fiy0,fiz0,
961 f+i_coord_offset,fshift+i_shift_offset);
963 /* Increment number of inner iterations */
964 inneriter += j_index_end - j_index_start;
966 /* Outer loop uses 7 flops */
969 /* Increment number of outer iterations */
972 /* Update outer/inner flops */
974 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_VDW_F,outeriter*7 + inneriter*55);