Bug Summary

File:gromacs/gmxlib/nonbonded/nb_kernel_sse4_1_single/nb_kernel_ElecRFCut_VdwNone_GeomW4W4_sse4_1_single.c
Location:line 1224, column 5
Description:Value stored to 'jnrA' is never read

Annotated Source Code

1/*
2 * This file is part of the GROMACS molecular simulation package.
3 *
4 * Copyright (c) 2012,2013,2014, by the GROMACS development team, led by
5 * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
6 * and including many others, as listed in the AUTHORS file in the
7 * top-level source directory and at http://www.gromacs.org.
8 *
9 * GROMACS is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public License
11 * as published by the Free Software Foundation; either version 2.1
12 * of the License, or (at your option) any later version.
13 *
14 * GROMACS is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with GROMACS; if not, see
21 * http://www.gnu.org/licenses, or write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 *
24 * If you want to redistribute modifications to GROMACS, please
25 * consider that scientific software is very special. Version
26 * control is crucial - bugs must be traceable. We will be happy to
27 * consider code for inclusion in the official distribution, but
28 * derived work must not be called official GROMACS. Details are found
29 * in the README & COPYING files - if they are missing, get the
30 * official version at http://www.gromacs.org.
31 *
32 * To help us fund GROMACS development, we humbly ask that you cite
33 * the research papers on the package. Check out http://www.gromacs.org.
34 */
35/*
36 * Note: this file was generated by the GROMACS sse4_1_single kernel generator.
37 */
38#ifdef HAVE_CONFIG_H1
39#include <config.h>
40#endif
41
42#include <math.h>
43
44#include "../nb_kernel.h"
45#include "types/simple.h"
46#include "gromacs/math/vec.h"
47#include "nrnb.h"
48
49#include "gromacs/simd/math_x86_sse4_1_single.h"
50#include "kernelutil_x86_sse4_1_single.h"
51
52/*
53 * Gromacs nonbonded kernel: nb_kernel_ElecRFCut_VdwNone_GeomW4W4_VF_sse4_1_single
54 * Electrostatics interaction: ReactionField
55 * VdW interaction: None
56 * Geometry: Water4-Water4
57 * Calculate force/pot: PotentialAndForce
58 */
59void
60nb_kernel_ElecRFCut_VdwNone_GeomW4W4_VF_sse4_1_single
61 (t_nblist * gmx_restrict nlist,
62 rvec * gmx_restrict xx,
63 rvec * gmx_restrict ff,
64 t_forcerec * gmx_restrict fr,
65 t_mdatoms * gmx_restrict mdatoms,
66 nb_kernel_data_t gmx_unused__attribute__ ((unused)) * gmx_restrict kernel_data,
67 t_nrnb * gmx_restrict nrnb)
68{
69 /* Suffixes 0,1,2,3 refer to particle indices for waters in the inner or outer loop, or
70 * just 0 for non-waters.
71 * Suffixes A,B,C,D refer to j loop unrolling done with SSE, e.g. for the four different
72 * jnr indices corresponding to data put in the four positions in the SIMD register.
73 */
74 int i_shift_offset,i_coord_offset,outeriter,inneriter;
75 int j_index_start,j_index_end,jidx,nri,inr,ggid,iidx;
76 int jnrA,jnrB,jnrC,jnrD;
77 int jnrlistA,jnrlistB,jnrlistC,jnrlistD;
78 int j_coord_offsetA,j_coord_offsetB,j_coord_offsetC,j_coord_offsetD;
79 int *iinr,*jindex,*jjnr,*shiftidx,*gid;
80 real rcutoff_scalar;
81 real *shiftvec,*fshift,*x,*f;
82 real *fjptrA,*fjptrB,*fjptrC,*fjptrD;
83 real scratch[4*DIM3];
84 __m128 tx,ty,tz,fscal,rcutoff,rcutoff2,jidxall;
85 int vdwioffset1;
86 __m128 ix1,iy1,iz1,fix1,fiy1,fiz1,iq1,isai1;
87 int vdwioffset2;
88 __m128 ix2,iy2,iz2,fix2,fiy2,fiz2,iq2,isai2;
89 int vdwioffset3;
90 __m128 ix3,iy3,iz3,fix3,fiy3,fiz3,iq3,isai3;
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 int vdwjidx3A,vdwjidx3B,vdwjidx3C,vdwjidx3D;
96 __m128 jx3,jy3,jz3,fjx3,fjy3,fjz3,jq3,isaj3;
97 __m128 dx11,dy11,dz11,rsq11,rinv11,rinvsq11,r11,qq11,c6_11,c12_11;
98 __m128 dx12,dy12,dz12,rsq12,rinv12,rinvsq12,r12,qq12,c6_12,c12_12;
99 __m128 dx13,dy13,dz13,rsq13,rinv13,rinvsq13,r13,qq13,c6_13,c12_13;
100 __m128 dx21,dy21,dz21,rsq21,rinv21,rinvsq21,r21,qq21,c6_21,c12_21;
101 __m128 dx22,dy22,dz22,rsq22,rinv22,rinvsq22,r22,qq22,c6_22,c12_22;
102 __m128 dx23,dy23,dz23,rsq23,rinv23,rinvsq23,r23,qq23,c6_23,c12_23;
103 __m128 dx31,dy31,dz31,rsq31,rinv31,rinvsq31,r31,qq31,c6_31,c12_31;
104 __m128 dx32,dy32,dz32,rsq32,rinv32,rinvsq32,r32,qq32,c6_32,c12_32;
105 __m128 dx33,dy33,dz33,rsq33,rinv33,rinvsq33,r33,qq33,c6_33,c12_33;
106 __m128 velec,felec,velecsum,facel,crf,krf,krf2;
107 real *charge;
108 __m128 dummy_mask,cutoff_mask;
109 __m128 signbit = _mm_castsi128_ps( _mm_set1_epi32(0x80000000) );
110 __m128 one = _mm_set1_ps(1.0);
111 __m128 two = _mm_set1_ps(2.0);
112 x = xx[0];
113 f = ff[0];
114
115 nri = nlist->nri;
116 iinr = nlist->iinr;
117 jindex = nlist->jindex;
118 jjnr = nlist->jjnr;
119 shiftidx = nlist->shift;
120 gid = nlist->gid;
121 shiftvec = fr->shift_vec[0];
122 fshift = fr->fshift[0];
123 facel = _mm_set1_ps(fr->epsfac);
124 charge = mdatoms->chargeA;
125 krf = _mm_set1_ps(fr->ic->k_rf);
126 krf2 = _mm_set1_ps(fr->ic->k_rf*2.0);
127 crf = _mm_set1_ps(fr->ic->c_rf);
128
129 /* Setup water-specific parameters */
130 inr = nlist->iinr[0];
131 iq1 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+1]));
132 iq2 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+2]));
133 iq3 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+3]));
134
135 jq1 = _mm_set1_ps(charge[inr+1]);
136 jq2 = _mm_set1_ps(charge[inr+2]);
137 jq3 = _mm_set1_ps(charge[inr+3]);
138 qq11 = _mm_mul_ps(iq1,jq1);
139 qq12 = _mm_mul_ps(iq1,jq2);
140 qq13 = _mm_mul_ps(iq1,jq3);
141 qq21 = _mm_mul_ps(iq2,jq1);
142 qq22 = _mm_mul_ps(iq2,jq2);
143 qq23 = _mm_mul_ps(iq2,jq3);
144 qq31 = _mm_mul_ps(iq3,jq1);
145 qq32 = _mm_mul_ps(iq3,jq2);
146 qq33 = _mm_mul_ps(iq3,jq3);
147
148 /* When we use explicit cutoffs the value must be identical for elec and VdW, so use elec as an arbitrary choice */
149 rcutoff_scalar = fr->rcoulomb;
150 rcutoff = _mm_set1_ps(rcutoff_scalar);
151 rcutoff2 = _mm_mul_ps(rcutoff,rcutoff);
152
153 /* Avoid stupid compiler warnings */
154 jnrA = jnrB = jnrC = jnrD = 0;
155 j_coord_offsetA = 0;
156 j_coord_offsetB = 0;
157 j_coord_offsetC = 0;
158 j_coord_offsetD = 0;
159
160 outeriter = 0;
161 inneriter = 0;
162
163 for(iidx=0;iidx<4*DIM3;iidx++)
164 {
165 scratch[iidx] = 0.0;
166 }
167
168 /* Start outer loop over neighborlists */
169 for(iidx=0; iidx<nri; iidx++)
170 {
171 /* Load shift vector for this list */
172 i_shift_offset = DIM3*shiftidx[iidx];
173
174 /* Load limits for loop over neighbors */
175 j_index_start = jindex[iidx];
176 j_index_end = jindex[iidx+1];
177
178 /* Get outer coordinate index */
179 inr = iinr[iidx];
180 i_coord_offset = DIM3*inr;
181
182 /* Load i particle coords and add shift vector */
183 gmx_mm_load_shift_and_3rvec_broadcast_ps(shiftvec+i_shift_offset,x+i_coord_offset+DIM3,
184 &ix1,&iy1,&iz1,&ix2,&iy2,&iz2,&ix3,&iy3,&iz3);
185
186 fix1 = _mm_setzero_ps();
187 fiy1 = _mm_setzero_ps();
188 fiz1 = _mm_setzero_ps();
189 fix2 = _mm_setzero_ps();
190 fiy2 = _mm_setzero_ps();
191 fiz2 = _mm_setzero_ps();
192 fix3 = _mm_setzero_ps();
193 fiy3 = _mm_setzero_ps();
194 fiz3 = _mm_setzero_ps();
195
196 /* Reset potential sums */
197 velecsum = _mm_setzero_ps();
198
199 /* Start inner kernel loop */
200 for(jidx=j_index_start; jidx<j_index_end && jjnr[jidx+3]>=0; jidx+=4)
201 {
202
203 /* Get j neighbor index, and coordinate index */
204 jnrA = jjnr[jidx];
205 jnrB = jjnr[jidx+1];
206 jnrC = jjnr[jidx+2];
207 jnrD = jjnr[jidx+3];
208 j_coord_offsetA = DIM3*jnrA;
209 j_coord_offsetB = DIM3*jnrB;
210 j_coord_offsetC = DIM3*jnrC;
211 j_coord_offsetD = DIM3*jnrD;
212
213 /* load j atom coordinates */
214 gmx_mm_load_3rvec_4ptr_swizzle_ps(x+j_coord_offsetA+DIM3,x+j_coord_offsetB+DIM3,
215 x+j_coord_offsetC+DIM3,x+j_coord_offsetD+DIM3,
216 &jx1,&jy1,&jz1,&jx2,&jy2,&jz2,&jx3,&jy3,&jz3);
217
218 /* Calculate displacement vector */
219 dx11 = _mm_sub_ps(ix1,jx1);
220 dy11 = _mm_sub_ps(iy1,jy1);
221 dz11 = _mm_sub_ps(iz1,jz1);
222 dx12 = _mm_sub_ps(ix1,jx2);
223 dy12 = _mm_sub_ps(iy1,jy2);
224 dz12 = _mm_sub_ps(iz1,jz2);
225 dx13 = _mm_sub_ps(ix1,jx3);
226 dy13 = _mm_sub_ps(iy1,jy3);
227 dz13 = _mm_sub_ps(iz1,jz3);
228 dx21 = _mm_sub_ps(ix2,jx1);
229 dy21 = _mm_sub_ps(iy2,jy1);
230 dz21 = _mm_sub_ps(iz2,jz1);
231 dx22 = _mm_sub_ps(ix2,jx2);
232 dy22 = _mm_sub_ps(iy2,jy2);
233 dz22 = _mm_sub_ps(iz2,jz2);
234 dx23 = _mm_sub_ps(ix2,jx3);
235 dy23 = _mm_sub_ps(iy2,jy3);
236 dz23 = _mm_sub_ps(iz2,jz3);
237 dx31 = _mm_sub_ps(ix3,jx1);
238 dy31 = _mm_sub_ps(iy3,jy1);
239 dz31 = _mm_sub_ps(iz3,jz1);
240 dx32 = _mm_sub_ps(ix3,jx2);
241 dy32 = _mm_sub_ps(iy3,jy2);
242 dz32 = _mm_sub_ps(iz3,jz2);
243 dx33 = _mm_sub_ps(ix3,jx3);
244 dy33 = _mm_sub_ps(iy3,jy3);
245 dz33 = _mm_sub_ps(iz3,jz3);
246
247 /* Calculate squared distance and things based on it */
248 rsq11 = gmx_mm_calc_rsq_ps(dx11,dy11,dz11);
249 rsq12 = gmx_mm_calc_rsq_ps(dx12,dy12,dz12);
250 rsq13 = gmx_mm_calc_rsq_ps(dx13,dy13,dz13);
251 rsq21 = gmx_mm_calc_rsq_ps(dx21,dy21,dz21);
252 rsq22 = gmx_mm_calc_rsq_ps(dx22,dy22,dz22);
253 rsq23 = gmx_mm_calc_rsq_ps(dx23,dy23,dz23);
254 rsq31 = gmx_mm_calc_rsq_ps(dx31,dy31,dz31);
255 rsq32 = gmx_mm_calc_rsq_ps(dx32,dy32,dz32);
256 rsq33 = gmx_mm_calc_rsq_ps(dx33,dy33,dz33);
257
258 rinv11 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq11);
259 rinv12 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq12);
260 rinv13 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq13);
261 rinv21 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq21);
262 rinv22 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq22);
263 rinv23 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq23);
264 rinv31 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq31);
265 rinv32 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq32);
266 rinv33 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq33);
267
268 rinvsq11 = _mm_mul_ps(rinv11,rinv11);
269 rinvsq12 = _mm_mul_ps(rinv12,rinv12);
270 rinvsq13 = _mm_mul_ps(rinv13,rinv13);
271 rinvsq21 = _mm_mul_ps(rinv21,rinv21);
272 rinvsq22 = _mm_mul_ps(rinv22,rinv22);
273 rinvsq23 = _mm_mul_ps(rinv23,rinv23);
274 rinvsq31 = _mm_mul_ps(rinv31,rinv31);
275 rinvsq32 = _mm_mul_ps(rinv32,rinv32);
276 rinvsq33 = _mm_mul_ps(rinv33,rinv33);
277
278 fjx1 = _mm_setzero_ps();
279 fjy1 = _mm_setzero_ps();
280 fjz1 = _mm_setzero_ps();
281 fjx2 = _mm_setzero_ps();
282 fjy2 = _mm_setzero_ps();
283 fjz2 = _mm_setzero_ps();
284 fjx3 = _mm_setzero_ps();
285 fjy3 = _mm_setzero_ps();
286 fjz3 = _mm_setzero_ps();
287
288 /**************************
289 * CALCULATE INTERACTIONS *
290 **************************/
291
292 if (gmx_mm_any_lt(rsq11,rcutoff2))
293 {
294
295 /* REACTION-FIELD ELECTROSTATICS */
296 velec = _mm_mul_ps(qq11,_mm_sub_ps(_mm_add_ps(rinv11,_mm_mul_ps(krf,rsq11)),crf));
297 felec = _mm_mul_ps(qq11,_mm_sub_ps(_mm_mul_ps(rinv11,rinvsq11),krf2));
298
299 cutoff_mask = _mm_cmplt_ps(rsq11,rcutoff2);
300
301 /* Update potential sum for this i atom from the interaction with this j atom. */
302 velec = _mm_and_ps(velec,cutoff_mask);
303 velecsum = _mm_add_ps(velecsum,velec);
304
305 fscal = felec;
306
307 fscal = _mm_and_ps(fscal,cutoff_mask);
308
309 /* Calculate temporary vectorial force */
310 tx = _mm_mul_ps(fscal,dx11);
311 ty = _mm_mul_ps(fscal,dy11);
312 tz = _mm_mul_ps(fscal,dz11);
313
314 /* Update vectorial force */
315 fix1 = _mm_add_ps(fix1,tx);
316 fiy1 = _mm_add_ps(fiy1,ty);
317 fiz1 = _mm_add_ps(fiz1,tz);
318
319 fjx1 = _mm_add_ps(fjx1,tx);
320 fjy1 = _mm_add_ps(fjy1,ty);
321 fjz1 = _mm_add_ps(fjz1,tz);
322
323 }
324
325 /**************************
326 * CALCULATE INTERACTIONS *
327 **************************/
328
329 if (gmx_mm_any_lt(rsq12,rcutoff2))
330 {
331
332 /* REACTION-FIELD ELECTROSTATICS */
333 velec = _mm_mul_ps(qq12,_mm_sub_ps(_mm_add_ps(rinv12,_mm_mul_ps(krf,rsq12)),crf));
334 felec = _mm_mul_ps(qq12,_mm_sub_ps(_mm_mul_ps(rinv12,rinvsq12),krf2));
335
336 cutoff_mask = _mm_cmplt_ps(rsq12,rcutoff2);
337
338 /* Update potential sum for this i atom from the interaction with this j atom. */
339 velec = _mm_and_ps(velec,cutoff_mask);
340 velecsum = _mm_add_ps(velecsum,velec);
341
342 fscal = felec;
343
344 fscal = _mm_and_ps(fscal,cutoff_mask);
345
346 /* Calculate temporary vectorial force */
347 tx = _mm_mul_ps(fscal,dx12);
348 ty = _mm_mul_ps(fscal,dy12);
349 tz = _mm_mul_ps(fscal,dz12);
350
351 /* Update vectorial force */
352 fix1 = _mm_add_ps(fix1,tx);
353 fiy1 = _mm_add_ps(fiy1,ty);
354 fiz1 = _mm_add_ps(fiz1,tz);
355
356 fjx2 = _mm_add_ps(fjx2,tx);
357 fjy2 = _mm_add_ps(fjy2,ty);
358 fjz2 = _mm_add_ps(fjz2,tz);
359
360 }
361
362 /**************************
363 * CALCULATE INTERACTIONS *
364 **************************/
365
366 if (gmx_mm_any_lt(rsq13,rcutoff2))
367 {
368
369 /* REACTION-FIELD ELECTROSTATICS */
370 velec = _mm_mul_ps(qq13,_mm_sub_ps(_mm_add_ps(rinv13,_mm_mul_ps(krf,rsq13)),crf));
371 felec = _mm_mul_ps(qq13,_mm_sub_ps(_mm_mul_ps(rinv13,rinvsq13),krf2));
372
373 cutoff_mask = _mm_cmplt_ps(rsq13,rcutoff2);
374
375 /* Update potential sum for this i atom from the interaction with this j atom. */
376 velec = _mm_and_ps(velec,cutoff_mask);
377 velecsum = _mm_add_ps(velecsum,velec);
378
379 fscal = felec;
380
381 fscal = _mm_and_ps(fscal,cutoff_mask);
382
383 /* Calculate temporary vectorial force */
384 tx = _mm_mul_ps(fscal,dx13);
385 ty = _mm_mul_ps(fscal,dy13);
386 tz = _mm_mul_ps(fscal,dz13);
387
388 /* Update vectorial force */
389 fix1 = _mm_add_ps(fix1,tx);
390 fiy1 = _mm_add_ps(fiy1,ty);
391 fiz1 = _mm_add_ps(fiz1,tz);
392
393 fjx3 = _mm_add_ps(fjx3,tx);
394 fjy3 = _mm_add_ps(fjy3,ty);
395 fjz3 = _mm_add_ps(fjz3,tz);
396
397 }
398
399 /**************************
400 * CALCULATE INTERACTIONS *
401 **************************/
402
403 if (gmx_mm_any_lt(rsq21,rcutoff2))
404 {
405
406 /* REACTION-FIELD ELECTROSTATICS */
407 velec = _mm_mul_ps(qq21,_mm_sub_ps(_mm_add_ps(rinv21,_mm_mul_ps(krf,rsq21)),crf));
408 felec = _mm_mul_ps(qq21,_mm_sub_ps(_mm_mul_ps(rinv21,rinvsq21),krf2));
409
410 cutoff_mask = _mm_cmplt_ps(rsq21,rcutoff2);
411
412 /* Update potential sum for this i atom from the interaction with this j atom. */
413 velec = _mm_and_ps(velec,cutoff_mask);
414 velecsum = _mm_add_ps(velecsum,velec);
415
416 fscal = felec;
417
418 fscal = _mm_and_ps(fscal,cutoff_mask);
419
420 /* Calculate temporary vectorial force */
421 tx = _mm_mul_ps(fscal,dx21);
422 ty = _mm_mul_ps(fscal,dy21);
423 tz = _mm_mul_ps(fscal,dz21);
424
425 /* Update vectorial force */
426 fix2 = _mm_add_ps(fix2,tx);
427 fiy2 = _mm_add_ps(fiy2,ty);
428 fiz2 = _mm_add_ps(fiz2,tz);
429
430 fjx1 = _mm_add_ps(fjx1,tx);
431 fjy1 = _mm_add_ps(fjy1,ty);
432 fjz1 = _mm_add_ps(fjz1,tz);
433
434 }
435
436 /**************************
437 * CALCULATE INTERACTIONS *
438 **************************/
439
440 if (gmx_mm_any_lt(rsq22,rcutoff2))
441 {
442
443 /* REACTION-FIELD ELECTROSTATICS */
444 velec = _mm_mul_ps(qq22,_mm_sub_ps(_mm_add_ps(rinv22,_mm_mul_ps(krf,rsq22)),crf));
445 felec = _mm_mul_ps(qq22,_mm_sub_ps(_mm_mul_ps(rinv22,rinvsq22),krf2));
446
447 cutoff_mask = _mm_cmplt_ps(rsq22,rcutoff2);
448
449 /* Update potential sum for this i atom from the interaction with this j atom. */
450 velec = _mm_and_ps(velec,cutoff_mask);
451 velecsum = _mm_add_ps(velecsum,velec);
452
453 fscal = felec;
454
455 fscal = _mm_and_ps(fscal,cutoff_mask);
456
457 /* Calculate temporary vectorial force */
458 tx = _mm_mul_ps(fscal,dx22);
459 ty = _mm_mul_ps(fscal,dy22);
460 tz = _mm_mul_ps(fscal,dz22);
461
462 /* Update vectorial force */
463 fix2 = _mm_add_ps(fix2,tx);
464 fiy2 = _mm_add_ps(fiy2,ty);
465 fiz2 = _mm_add_ps(fiz2,tz);
466
467 fjx2 = _mm_add_ps(fjx2,tx);
468 fjy2 = _mm_add_ps(fjy2,ty);
469 fjz2 = _mm_add_ps(fjz2,tz);
470
471 }
472
473 /**************************
474 * CALCULATE INTERACTIONS *
475 **************************/
476
477 if (gmx_mm_any_lt(rsq23,rcutoff2))
478 {
479
480 /* REACTION-FIELD ELECTROSTATICS */
481 velec = _mm_mul_ps(qq23,_mm_sub_ps(_mm_add_ps(rinv23,_mm_mul_ps(krf,rsq23)),crf));
482 felec = _mm_mul_ps(qq23,_mm_sub_ps(_mm_mul_ps(rinv23,rinvsq23),krf2));
483
484 cutoff_mask = _mm_cmplt_ps(rsq23,rcutoff2);
485
486 /* Update potential sum for this i atom from the interaction with this j atom. */
487 velec = _mm_and_ps(velec,cutoff_mask);
488 velecsum = _mm_add_ps(velecsum,velec);
489
490 fscal = felec;
491
492 fscal = _mm_and_ps(fscal,cutoff_mask);
493
494 /* Calculate temporary vectorial force */
495 tx = _mm_mul_ps(fscal,dx23);
496 ty = _mm_mul_ps(fscal,dy23);
497 tz = _mm_mul_ps(fscal,dz23);
498
499 /* Update vectorial force */
500 fix2 = _mm_add_ps(fix2,tx);
501 fiy2 = _mm_add_ps(fiy2,ty);
502 fiz2 = _mm_add_ps(fiz2,tz);
503
504 fjx3 = _mm_add_ps(fjx3,tx);
505 fjy3 = _mm_add_ps(fjy3,ty);
506 fjz3 = _mm_add_ps(fjz3,tz);
507
508 }
509
510 /**************************
511 * CALCULATE INTERACTIONS *
512 **************************/
513
514 if (gmx_mm_any_lt(rsq31,rcutoff2))
515 {
516
517 /* REACTION-FIELD ELECTROSTATICS */
518 velec = _mm_mul_ps(qq31,_mm_sub_ps(_mm_add_ps(rinv31,_mm_mul_ps(krf,rsq31)),crf));
519 felec = _mm_mul_ps(qq31,_mm_sub_ps(_mm_mul_ps(rinv31,rinvsq31),krf2));
520
521 cutoff_mask = _mm_cmplt_ps(rsq31,rcutoff2);
522
523 /* Update potential sum for this i atom from the interaction with this j atom. */
524 velec = _mm_and_ps(velec,cutoff_mask);
525 velecsum = _mm_add_ps(velecsum,velec);
526
527 fscal = felec;
528
529 fscal = _mm_and_ps(fscal,cutoff_mask);
530
531 /* Calculate temporary vectorial force */
532 tx = _mm_mul_ps(fscal,dx31);
533 ty = _mm_mul_ps(fscal,dy31);
534 tz = _mm_mul_ps(fscal,dz31);
535
536 /* Update vectorial force */
537 fix3 = _mm_add_ps(fix3,tx);
538 fiy3 = _mm_add_ps(fiy3,ty);
539 fiz3 = _mm_add_ps(fiz3,tz);
540
541 fjx1 = _mm_add_ps(fjx1,tx);
542 fjy1 = _mm_add_ps(fjy1,ty);
543 fjz1 = _mm_add_ps(fjz1,tz);
544
545 }
546
547 /**************************
548 * CALCULATE INTERACTIONS *
549 **************************/
550
551 if (gmx_mm_any_lt(rsq32,rcutoff2))
552 {
553
554 /* REACTION-FIELD ELECTROSTATICS */
555 velec = _mm_mul_ps(qq32,_mm_sub_ps(_mm_add_ps(rinv32,_mm_mul_ps(krf,rsq32)),crf));
556 felec = _mm_mul_ps(qq32,_mm_sub_ps(_mm_mul_ps(rinv32,rinvsq32),krf2));
557
558 cutoff_mask = _mm_cmplt_ps(rsq32,rcutoff2);
559
560 /* Update potential sum for this i atom from the interaction with this j atom. */
561 velec = _mm_and_ps(velec,cutoff_mask);
562 velecsum = _mm_add_ps(velecsum,velec);
563
564 fscal = felec;
565
566 fscal = _mm_and_ps(fscal,cutoff_mask);
567
568 /* Calculate temporary vectorial force */
569 tx = _mm_mul_ps(fscal,dx32);
570 ty = _mm_mul_ps(fscal,dy32);
571 tz = _mm_mul_ps(fscal,dz32);
572
573 /* Update vectorial force */
574 fix3 = _mm_add_ps(fix3,tx);
575 fiy3 = _mm_add_ps(fiy3,ty);
576 fiz3 = _mm_add_ps(fiz3,tz);
577
578 fjx2 = _mm_add_ps(fjx2,tx);
579 fjy2 = _mm_add_ps(fjy2,ty);
580 fjz2 = _mm_add_ps(fjz2,tz);
581
582 }
583
584 /**************************
585 * CALCULATE INTERACTIONS *
586 **************************/
587
588 if (gmx_mm_any_lt(rsq33,rcutoff2))
589 {
590
591 /* REACTION-FIELD ELECTROSTATICS */
592 velec = _mm_mul_ps(qq33,_mm_sub_ps(_mm_add_ps(rinv33,_mm_mul_ps(krf,rsq33)),crf));
593 felec = _mm_mul_ps(qq33,_mm_sub_ps(_mm_mul_ps(rinv33,rinvsq33),krf2));
594
595 cutoff_mask = _mm_cmplt_ps(rsq33,rcutoff2);
596
597 /* Update potential sum for this i atom from the interaction with this j atom. */
598 velec = _mm_and_ps(velec,cutoff_mask);
599 velecsum = _mm_add_ps(velecsum,velec);
600
601 fscal = felec;
602
603 fscal = _mm_and_ps(fscal,cutoff_mask);
604
605 /* Calculate temporary vectorial force */
606 tx = _mm_mul_ps(fscal,dx33);
607 ty = _mm_mul_ps(fscal,dy33);
608 tz = _mm_mul_ps(fscal,dz33);
609
610 /* Update vectorial force */
611 fix3 = _mm_add_ps(fix3,tx);
612 fiy3 = _mm_add_ps(fiy3,ty);
613 fiz3 = _mm_add_ps(fiz3,tz);
614
615 fjx3 = _mm_add_ps(fjx3,tx);
616 fjy3 = _mm_add_ps(fjy3,ty);
617 fjz3 = _mm_add_ps(fjz3,tz);
618
619 }
620
621 fjptrA = f+j_coord_offsetA;
622 fjptrB = f+j_coord_offsetB;
623 fjptrC = f+j_coord_offsetC;
624 fjptrD = f+j_coord_offsetD;
625
626 gmx_mm_decrement_3rvec_4ptr_swizzle_ps(fjptrA+DIM3,fjptrB+DIM3,fjptrC+DIM3,fjptrD+DIM3,
627 fjx1,fjy1,fjz1,fjx2,fjy2,fjz2,fjx3,fjy3,fjz3);
628
629 /* Inner loop uses 324 flops */
630 }
631
632 if(jidx<j_index_end)
633 {
634
635 /* Get j neighbor index, and coordinate index */
636 jnrlistA = jjnr[jidx];
637 jnrlistB = jjnr[jidx+1];
638 jnrlistC = jjnr[jidx+2];
639 jnrlistD = jjnr[jidx+3];
640 /* Sign of each element will be negative for non-real atoms.
641 * This mask will be 0xFFFFFFFF for dummy entries and 0x0 for real ones,
642 * so use it as val = _mm_andnot_ps(mask,val) to clear dummy entries.
643 */
644 dummy_mask = gmx_mm_castsi128_ps_mm_castsi128_ps(_mm_cmplt_epi32(_mm_loadu_si128((const __m128i *)(jjnr+jidx)),_mm_setzero_si128()));
645 jnrA = (jnrlistA>=0) ? jnrlistA : 0;
646 jnrB = (jnrlistB>=0) ? jnrlistB : 0;
647 jnrC = (jnrlistC>=0) ? jnrlistC : 0;
648 jnrD = (jnrlistD>=0) ? jnrlistD : 0;
649 j_coord_offsetA = DIM3*jnrA;
650 j_coord_offsetB = DIM3*jnrB;
651 j_coord_offsetC = DIM3*jnrC;
652 j_coord_offsetD = DIM3*jnrD;
653
654 /* load j atom coordinates */
655 gmx_mm_load_3rvec_4ptr_swizzle_ps(x+j_coord_offsetA+DIM3,x+j_coord_offsetB+DIM3,
656 x+j_coord_offsetC+DIM3,x+j_coord_offsetD+DIM3,
657 &jx1,&jy1,&jz1,&jx2,&jy2,&jz2,&jx3,&jy3,&jz3);
658
659 /* Calculate displacement vector */
660 dx11 = _mm_sub_ps(ix1,jx1);
661 dy11 = _mm_sub_ps(iy1,jy1);
662 dz11 = _mm_sub_ps(iz1,jz1);
663 dx12 = _mm_sub_ps(ix1,jx2);
664 dy12 = _mm_sub_ps(iy1,jy2);
665 dz12 = _mm_sub_ps(iz1,jz2);
666 dx13 = _mm_sub_ps(ix1,jx3);
667 dy13 = _mm_sub_ps(iy1,jy3);
668 dz13 = _mm_sub_ps(iz1,jz3);
669 dx21 = _mm_sub_ps(ix2,jx1);
670 dy21 = _mm_sub_ps(iy2,jy1);
671 dz21 = _mm_sub_ps(iz2,jz1);
672 dx22 = _mm_sub_ps(ix2,jx2);
673 dy22 = _mm_sub_ps(iy2,jy2);
674 dz22 = _mm_sub_ps(iz2,jz2);
675 dx23 = _mm_sub_ps(ix2,jx3);
676 dy23 = _mm_sub_ps(iy2,jy3);
677 dz23 = _mm_sub_ps(iz2,jz3);
678 dx31 = _mm_sub_ps(ix3,jx1);
679 dy31 = _mm_sub_ps(iy3,jy1);
680 dz31 = _mm_sub_ps(iz3,jz1);
681 dx32 = _mm_sub_ps(ix3,jx2);
682 dy32 = _mm_sub_ps(iy3,jy2);
683 dz32 = _mm_sub_ps(iz3,jz2);
684 dx33 = _mm_sub_ps(ix3,jx3);
685 dy33 = _mm_sub_ps(iy3,jy3);
686 dz33 = _mm_sub_ps(iz3,jz3);
687
688 /* Calculate squared distance and things based on it */
689 rsq11 = gmx_mm_calc_rsq_ps(dx11,dy11,dz11);
690 rsq12 = gmx_mm_calc_rsq_ps(dx12,dy12,dz12);
691 rsq13 = gmx_mm_calc_rsq_ps(dx13,dy13,dz13);
692 rsq21 = gmx_mm_calc_rsq_ps(dx21,dy21,dz21);
693 rsq22 = gmx_mm_calc_rsq_ps(dx22,dy22,dz22);
694 rsq23 = gmx_mm_calc_rsq_ps(dx23,dy23,dz23);
695 rsq31 = gmx_mm_calc_rsq_ps(dx31,dy31,dz31);
696 rsq32 = gmx_mm_calc_rsq_ps(dx32,dy32,dz32);
697 rsq33 = gmx_mm_calc_rsq_ps(dx33,dy33,dz33);
698
699 rinv11 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq11);
700 rinv12 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq12);
701 rinv13 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq13);
702 rinv21 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq21);
703 rinv22 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq22);
704 rinv23 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq23);
705 rinv31 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq31);
706 rinv32 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq32);
707 rinv33 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq33);
708
709 rinvsq11 = _mm_mul_ps(rinv11,rinv11);
710 rinvsq12 = _mm_mul_ps(rinv12,rinv12);
711 rinvsq13 = _mm_mul_ps(rinv13,rinv13);
712 rinvsq21 = _mm_mul_ps(rinv21,rinv21);
713 rinvsq22 = _mm_mul_ps(rinv22,rinv22);
714 rinvsq23 = _mm_mul_ps(rinv23,rinv23);
715 rinvsq31 = _mm_mul_ps(rinv31,rinv31);
716 rinvsq32 = _mm_mul_ps(rinv32,rinv32);
717 rinvsq33 = _mm_mul_ps(rinv33,rinv33);
718
719 fjx1 = _mm_setzero_ps();
720 fjy1 = _mm_setzero_ps();
721 fjz1 = _mm_setzero_ps();
722 fjx2 = _mm_setzero_ps();
723 fjy2 = _mm_setzero_ps();
724 fjz2 = _mm_setzero_ps();
725 fjx3 = _mm_setzero_ps();
726 fjy3 = _mm_setzero_ps();
727 fjz3 = _mm_setzero_ps();
728
729 /**************************
730 * CALCULATE INTERACTIONS *
731 **************************/
732
733 if (gmx_mm_any_lt(rsq11,rcutoff2))
734 {
735
736 /* REACTION-FIELD ELECTROSTATICS */
737 velec = _mm_mul_ps(qq11,_mm_sub_ps(_mm_add_ps(rinv11,_mm_mul_ps(krf,rsq11)),crf));
738 felec = _mm_mul_ps(qq11,_mm_sub_ps(_mm_mul_ps(rinv11,rinvsq11),krf2));
739
740 cutoff_mask = _mm_cmplt_ps(rsq11,rcutoff2);
741
742 /* Update potential sum for this i atom from the interaction with this j atom. */
743 velec = _mm_and_ps(velec,cutoff_mask);
744 velec = _mm_andnot_ps(dummy_mask,velec);
745 velecsum = _mm_add_ps(velecsum,velec);
746
747 fscal = felec;
748
749 fscal = _mm_and_ps(fscal,cutoff_mask);
750
751 fscal = _mm_andnot_ps(dummy_mask,fscal);
752
753 /* Calculate temporary vectorial force */
754 tx = _mm_mul_ps(fscal,dx11);
755 ty = _mm_mul_ps(fscal,dy11);
756 tz = _mm_mul_ps(fscal,dz11);
757
758 /* Update vectorial force */
759 fix1 = _mm_add_ps(fix1,tx);
760 fiy1 = _mm_add_ps(fiy1,ty);
761 fiz1 = _mm_add_ps(fiz1,tz);
762
763 fjx1 = _mm_add_ps(fjx1,tx);
764 fjy1 = _mm_add_ps(fjy1,ty);
765 fjz1 = _mm_add_ps(fjz1,tz);
766
767 }
768
769 /**************************
770 * CALCULATE INTERACTIONS *
771 **************************/
772
773 if (gmx_mm_any_lt(rsq12,rcutoff2))
774 {
775
776 /* REACTION-FIELD ELECTROSTATICS */
777 velec = _mm_mul_ps(qq12,_mm_sub_ps(_mm_add_ps(rinv12,_mm_mul_ps(krf,rsq12)),crf));
778 felec = _mm_mul_ps(qq12,_mm_sub_ps(_mm_mul_ps(rinv12,rinvsq12),krf2));
779
780 cutoff_mask = _mm_cmplt_ps(rsq12,rcutoff2);
781
782 /* Update potential sum for this i atom from the interaction with this j atom. */
783 velec = _mm_and_ps(velec,cutoff_mask);
784 velec = _mm_andnot_ps(dummy_mask,velec);
785 velecsum = _mm_add_ps(velecsum,velec);
786
787 fscal = felec;
788
789 fscal = _mm_and_ps(fscal,cutoff_mask);
790
791 fscal = _mm_andnot_ps(dummy_mask,fscal);
792
793 /* Calculate temporary vectorial force */
794 tx = _mm_mul_ps(fscal,dx12);
795 ty = _mm_mul_ps(fscal,dy12);
796 tz = _mm_mul_ps(fscal,dz12);
797
798 /* Update vectorial force */
799 fix1 = _mm_add_ps(fix1,tx);
800 fiy1 = _mm_add_ps(fiy1,ty);
801 fiz1 = _mm_add_ps(fiz1,tz);
802
803 fjx2 = _mm_add_ps(fjx2,tx);
804 fjy2 = _mm_add_ps(fjy2,ty);
805 fjz2 = _mm_add_ps(fjz2,tz);
806
807 }
808
809 /**************************
810 * CALCULATE INTERACTIONS *
811 **************************/
812
813 if (gmx_mm_any_lt(rsq13,rcutoff2))
814 {
815
816 /* REACTION-FIELD ELECTROSTATICS */
817 velec = _mm_mul_ps(qq13,_mm_sub_ps(_mm_add_ps(rinv13,_mm_mul_ps(krf,rsq13)),crf));
818 felec = _mm_mul_ps(qq13,_mm_sub_ps(_mm_mul_ps(rinv13,rinvsq13),krf2));
819
820 cutoff_mask = _mm_cmplt_ps(rsq13,rcutoff2);
821
822 /* Update potential sum for this i atom from the interaction with this j atom. */
823 velec = _mm_and_ps(velec,cutoff_mask);
824 velec = _mm_andnot_ps(dummy_mask,velec);
825 velecsum = _mm_add_ps(velecsum,velec);
826
827 fscal = felec;
828
829 fscal = _mm_and_ps(fscal,cutoff_mask);
830
831 fscal = _mm_andnot_ps(dummy_mask,fscal);
832
833 /* Calculate temporary vectorial force */
834 tx = _mm_mul_ps(fscal,dx13);
835 ty = _mm_mul_ps(fscal,dy13);
836 tz = _mm_mul_ps(fscal,dz13);
837
838 /* Update vectorial force */
839 fix1 = _mm_add_ps(fix1,tx);
840 fiy1 = _mm_add_ps(fiy1,ty);
841 fiz1 = _mm_add_ps(fiz1,tz);
842
843 fjx3 = _mm_add_ps(fjx3,tx);
844 fjy3 = _mm_add_ps(fjy3,ty);
845 fjz3 = _mm_add_ps(fjz3,tz);
846
847 }
848
849 /**************************
850 * CALCULATE INTERACTIONS *
851 **************************/
852
853 if (gmx_mm_any_lt(rsq21,rcutoff2))
854 {
855
856 /* REACTION-FIELD ELECTROSTATICS */
857 velec = _mm_mul_ps(qq21,_mm_sub_ps(_mm_add_ps(rinv21,_mm_mul_ps(krf,rsq21)),crf));
858 felec = _mm_mul_ps(qq21,_mm_sub_ps(_mm_mul_ps(rinv21,rinvsq21),krf2));
859
860 cutoff_mask = _mm_cmplt_ps(rsq21,rcutoff2);
861
862 /* Update potential sum for this i atom from the interaction with this j atom. */
863 velec = _mm_and_ps(velec,cutoff_mask);
864 velec = _mm_andnot_ps(dummy_mask,velec);
865 velecsum = _mm_add_ps(velecsum,velec);
866
867 fscal = felec;
868
869 fscal = _mm_and_ps(fscal,cutoff_mask);
870
871 fscal = _mm_andnot_ps(dummy_mask,fscal);
872
873 /* Calculate temporary vectorial force */
874 tx = _mm_mul_ps(fscal,dx21);
875 ty = _mm_mul_ps(fscal,dy21);
876 tz = _mm_mul_ps(fscal,dz21);
877
878 /* Update vectorial force */
879 fix2 = _mm_add_ps(fix2,tx);
880 fiy2 = _mm_add_ps(fiy2,ty);
881 fiz2 = _mm_add_ps(fiz2,tz);
882
883 fjx1 = _mm_add_ps(fjx1,tx);
884 fjy1 = _mm_add_ps(fjy1,ty);
885 fjz1 = _mm_add_ps(fjz1,tz);
886
887 }
888
889 /**************************
890 * CALCULATE INTERACTIONS *
891 **************************/
892
893 if (gmx_mm_any_lt(rsq22,rcutoff2))
894 {
895
896 /* REACTION-FIELD ELECTROSTATICS */
897 velec = _mm_mul_ps(qq22,_mm_sub_ps(_mm_add_ps(rinv22,_mm_mul_ps(krf,rsq22)),crf));
898 felec = _mm_mul_ps(qq22,_mm_sub_ps(_mm_mul_ps(rinv22,rinvsq22),krf2));
899
900 cutoff_mask = _mm_cmplt_ps(rsq22,rcutoff2);
901
902 /* Update potential sum for this i atom from the interaction with this j atom. */
903 velec = _mm_and_ps(velec,cutoff_mask);
904 velec = _mm_andnot_ps(dummy_mask,velec);
905 velecsum = _mm_add_ps(velecsum,velec);
906
907 fscal = felec;
908
909 fscal = _mm_and_ps(fscal,cutoff_mask);
910
911 fscal = _mm_andnot_ps(dummy_mask,fscal);
912
913 /* Calculate temporary vectorial force */
914 tx = _mm_mul_ps(fscal,dx22);
915 ty = _mm_mul_ps(fscal,dy22);
916 tz = _mm_mul_ps(fscal,dz22);
917
918 /* Update vectorial force */
919 fix2 = _mm_add_ps(fix2,tx);
920 fiy2 = _mm_add_ps(fiy2,ty);
921 fiz2 = _mm_add_ps(fiz2,tz);
922
923 fjx2 = _mm_add_ps(fjx2,tx);
924 fjy2 = _mm_add_ps(fjy2,ty);
925 fjz2 = _mm_add_ps(fjz2,tz);
926
927 }
928
929 /**************************
930 * CALCULATE INTERACTIONS *
931 **************************/
932
933 if (gmx_mm_any_lt(rsq23,rcutoff2))
934 {
935
936 /* REACTION-FIELD ELECTROSTATICS */
937 velec = _mm_mul_ps(qq23,_mm_sub_ps(_mm_add_ps(rinv23,_mm_mul_ps(krf,rsq23)),crf));
938 felec = _mm_mul_ps(qq23,_mm_sub_ps(_mm_mul_ps(rinv23,rinvsq23),krf2));
939
940 cutoff_mask = _mm_cmplt_ps(rsq23,rcutoff2);
941
942 /* Update potential sum for this i atom from the interaction with this j atom. */
943 velec = _mm_and_ps(velec,cutoff_mask);
944 velec = _mm_andnot_ps(dummy_mask,velec);
945 velecsum = _mm_add_ps(velecsum,velec);
946
947 fscal = felec;
948
949 fscal = _mm_and_ps(fscal,cutoff_mask);
950
951 fscal = _mm_andnot_ps(dummy_mask,fscal);
952
953 /* Calculate temporary vectorial force */
954 tx = _mm_mul_ps(fscal,dx23);
955 ty = _mm_mul_ps(fscal,dy23);
956 tz = _mm_mul_ps(fscal,dz23);
957
958 /* Update vectorial force */
959 fix2 = _mm_add_ps(fix2,tx);
960 fiy2 = _mm_add_ps(fiy2,ty);
961 fiz2 = _mm_add_ps(fiz2,tz);
962
963 fjx3 = _mm_add_ps(fjx3,tx);
964 fjy3 = _mm_add_ps(fjy3,ty);
965 fjz3 = _mm_add_ps(fjz3,tz);
966
967 }
968
969 /**************************
970 * CALCULATE INTERACTIONS *
971 **************************/
972
973 if (gmx_mm_any_lt(rsq31,rcutoff2))
974 {
975
976 /* REACTION-FIELD ELECTROSTATICS */
977 velec = _mm_mul_ps(qq31,_mm_sub_ps(_mm_add_ps(rinv31,_mm_mul_ps(krf,rsq31)),crf));
978 felec = _mm_mul_ps(qq31,_mm_sub_ps(_mm_mul_ps(rinv31,rinvsq31),krf2));
979
980 cutoff_mask = _mm_cmplt_ps(rsq31,rcutoff2);
981
982 /* Update potential sum for this i atom from the interaction with this j atom. */
983 velec = _mm_and_ps(velec,cutoff_mask);
984 velec = _mm_andnot_ps(dummy_mask,velec);
985 velecsum = _mm_add_ps(velecsum,velec);
986
987 fscal = felec;
988
989 fscal = _mm_and_ps(fscal,cutoff_mask);
990
991 fscal = _mm_andnot_ps(dummy_mask,fscal);
992
993 /* Calculate temporary vectorial force */
994 tx = _mm_mul_ps(fscal,dx31);
995 ty = _mm_mul_ps(fscal,dy31);
996 tz = _mm_mul_ps(fscal,dz31);
997
998 /* Update vectorial force */
999 fix3 = _mm_add_ps(fix3,tx);
1000 fiy3 = _mm_add_ps(fiy3,ty);
1001 fiz3 = _mm_add_ps(fiz3,tz);
1002
1003 fjx1 = _mm_add_ps(fjx1,tx);
1004 fjy1 = _mm_add_ps(fjy1,ty);
1005 fjz1 = _mm_add_ps(fjz1,tz);
1006
1007 }
1008
1009 /**************************
1010 * CALCULATE INTERACTIONS *
1011 **************************/
1012
1013 if (gmx_mm_any_lt(rsq32,rcutoff2))
1014 {
1015
1016 /* REACTION-FIELD ELECTROSTATICS */
1017 velec = _mm_mul_ps(qq32,_mm_sub_ps(_mm_add_ps(rinv32,_mm_mul_ps(krf,rsq32)),crf));
1018 felec = _mm_mul_ps(qq32,_mm_sub_ps(_mm_mul_ps(rinv32,rinvsq32),krf2));
1019
1020 cutoff_mask = _mm_cmplt_ps(rsq32,rcutoff2);
1021
1022 /* Update potential sum for this i atom from the interaction with this j atom. */
1023 velec = _mm_and_ps(velec,cutoff_mask);
1024 velec = _mm_andnot_ps(dummy_mask,velec);
1025 velecsum = _mm_add_ps(velecsum,velec);
1026
1027 fscal = felec;
1028
1029 fscal = _mm_and_ps(fscal,cutoff_mask);
1030
1031 fscal = _mm_andnot_ps(dummy_mask,fscal);
1032
1033 /* Calculate temporary vectorial force */
1034 tx = _mm_mul_ps(fscal,dx32);
1035 ty = _mm_mul_ps(fscal,dy32);
1036 tz = _mm_mul_ps(fscal,dz32);
1037
1038 /* Update vectorial force */
1039 fix3 = _mm_add_ps(fix3,tx);
1040 fiy3 = _mm_add_ps(fiy3,ty);
1041 fiz3 = _mm_add_ps(fiz3,tz);
1042
1043 fjx2 = _mm_add_ps(fjx2,tx);
1044 fjy2 = _mm_add_ps(fjy2,ty);
1045 fjz2 = _mm_add_ps(fjz2,tz);
1046
1047 }
1048
1049 /**************************
1050 * CALCULATE INTERACTIONS *
1051 **************************/
1052
1053 if (gmx_mm_any_lt(rsq33,rcutoff2))
1054 {
1055
1056 /* REACTION-FIELD ELECTROSTATICS */
1057 velec = _mm_mul_ps(qq33,_mm_sub_ps(_mm_add_ps(rinv33,_mm_mul_ps(krf,rsq33)),crf));
1058 felec = _mm_mul_ps(qq33,_mm_sub_ps(_mm_mul_ps(rinv33,rinvsq33),krf2));
1059
1060 cutoff_mask = _mm_cmplt_ps(rsq33,rcutoff2);
1061
1062 /* Update potential sum for this i atom from the interaction with this j atom. */
1063 velec = _mm_and_ps(velec,cutoff_mask);
1064 velec = _mm_andnot_ps(dummy_mask,velec);
1065 velecsum = _mm_add_ps(velecsum,velec);
1066
1067 fscal = felec;
1068
1069 fscal = _mm_and_ps(fscal,cutoff_mask);
1070
1071 fscal = _mm_andnot_ps(dummy_mask,fscal);
1072
1073 /* Calculate temporary vectorial force */
1074 tx = _mm_mul_ps(fscal,dx33);
1075 ty = _mm_mul_ps(fscal,dy33);
1076 tz = _mm_mul_ps(fscal,dz33);
1077
1078 /* Update vectorial force */
1079 fix3 = _mm_add_ps(fix3,tx);
1080 fiy3 = _mm_add_ps(fiy3,ty);
1081 fiz3 = _mm_add_ps(fiz3,tz);
1082
1083 fjx3 = _mm_add_ps(fjx3,tx);
1084 fjy3 = _mm_add_ps(fjy3,ty);
1085 fjz3 = _mm_add_ps(fjz3,tz);
1086
1087 }
1088
1089 fjptrA = (jnrlistA>=0) ? f+j_coord_offsetA : scratch;
1090 fjptrB = (jnrlistB>=0) ? f+j_coord_offsetB : scratch;
1091 fjptrC = (jnrlistC>=0) ? f+j_coord_offsetC : scratch;
1092 fjptrD = (jnrlistD>=0) ? f+j_coord_offsetD : scratch;
1093
1094 gmx_mm_decrement_3rvec_4ptr_swizzle_ps(fjptrA+DIM3,fjptrB+DIM3,fjptrC+DIM3,fjptrD+DIM3,
1095 fjx1,fjy1,fjz1,fjx2,fjy2,fjz2,fjx3,fjy3,fjz3);
1096
1097 /* Inner loop uses 324 flops */
1098 }
1099
1100 /* End of innermost loop */
1101
1102 gmx_mm_update_iforce_3atom_swizzle_ps(fix1,fiy1,fiz1,fix2,fiy2,fiz2,fix3,fiy3,fiz3,
1103 f+i_coord_offset+DIM3,fshift+i_shift_offset);
1104
1105 ggid = gid[iidx];
1106 /* Update potential energies */
1107 gmx_mm_update_1pot_ps(velecsum,kernel_data->energygrp_elec+ggid);
1108
1109 /* Increment number of inner iterations */
1110 inneriter += j_index_end - j_index_start;
1111
1112 /* Outer loop uses 19 flops */
1113 }
1114
1115 /* Increment number of outer iterations */
1116 outeriter += nri;
1117
1118 /* Update outer/inner flops */
1119
1120 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_W4W4_VF,outeriter*19 + inneriter*324)(nrnb)->n[eNR_NBKERNEL_ELEC_W4W4_VF] += outeriter*19 + inneriter
*324
;
1121}
1122/*
1123 * Gromacs nonbonded kernel: nb_kernel_ElecRFCut_VdwNone_GeomW4W4_F_sse4_1_single
1124 * Electrostatics interaction: ReactionField
1125 * VdW interaction: None
1126 * Geometry: Water4-Water4
1127 * Calculate force/pot: Force
1128 */
1129void
1130nb_kernel_ElecRFCut_VdwNone_GeomW4W4_F_sse4_1_single
1131 (t_nblist * gmx_restrict nlist,
1132 rvec * gmx_restrict xx,
1133 rvec * gmx_restrict ff,
1134 t_forcerec * gmx_restrict fr,
1135 t_mdatoms * gmx_restrict mdatoms,
1136 nb_kernel_data_t gmx_unused__attribute__ ((unused)) * gmx_restrict kernel_data,
1137 t_nrnb * gmx_restrict nrnb)
1138{
1139 /* Suffixes 0,1,2,3 refer to particle indices for waters in the inner or outer loop, or
1140 * just 0 for non-waters.
1141 * Suffixes A,B,C,D refer to j loop unrolling done with SSE, e.g. for the four different
1142 * jnr indices corresponding to data put in the four positions in the SIMD register.
1143 */
1144 int i_shift_offset,i_coord_offset,outeriter,inneriter;
1145 int j_index_start,j_index_end,jidx,nri,inr,ggid,iidx;
1146 int jnrA,jnrB,jnrC,jnrD;
1147 int jnrlistA,jnrlistB,jnrlistC,jnrlistD;
1148 int j_coord_offsetA,j_coord_offsetB,j_coord_offsetC,j_coord_offsetD;
1149 int *iinr,*jindex,*jjnr,*shiftidx,*gid;
1150 real rcutoff_scalar;
1151 real *shiftvec,*fshift,*x,*f;
1152 real *fjptrA,*fjptrB,*fjptrC,*fjptrD;
1153 real scratch[4*DIM3];
1154 __m128 tx,ty,tz,fscal,rcutoff,rcutoff2,jidxall;
1155 int vdwioffset1;
1156 __m128 ix1,iy1,iz1,fix1,fiy1,fiz1,iq1,isai1;
1157 int vdwioffset2;
1158 __m128 ix2,iy2,iz2,fix2,fiy2,fiz2,iq2,isai2;
1159 int vdwioffset3;
1160 __m128 ix3,iy3,iz3,fix3,fiy3,fiz3,iq3,isai3;
1161 int vdwjidx1A,vdwjidx1B,vdwjidx1C,vdwjidx1D;
1162 __m128 jx1,jy1,jz1,fjx1,fjy1,fjz1,jq1,isaj1;
1163 int vdwjidx2A,vdwjidx2B,vdwjidx2C,vdwjidx2D;
1164 __m128 jx2,jy2,jz2,fjx2,fjy2,fjz2,jq2,isaj2;
1165 int vdwjidx3A,vdwjidx3B,vdwjidx3C,vdwjidx3D;
1166 __m128 jx3,jy3,jz3,fjx3,fjy3,fjz3,jq3,isaj3;
1167 __m128 dx11,dy11,dz11,rsq11,rinv11,rinvsq11,r11,qq11,c6_11,c12_11;
1168 __m128 dx12,dy12,dz12,rsq12,rinv12,rinvsq12,r12,qq12,c6_12,c12_12;
1169 __m128 dx13,dy13,dz13,rsq13,rinv13,rinvsq13,r13,qq13,c6_13,c12_13;
1170 __m128 dx21,dy21,dz21,rsq21,rinv21,rinvsq21,r21,qq21,c6_21,c12_21;
1171 __m128 dx22,dy22,dz22,rsq22,rinv22,rinvsq22,r22,qq22,c6_22,c12_22;
1172 __m128 dx23,dy23,dz23,rsq23,rinv23,rinvsq23,r23,qq23,c6_23,c12_23;
1173 __m128 dx31,dy31,dz31,rsq31,rinv31,rinvsq31,r31,qq31,c6_31,c12_31;
1174 __m128 dx32,dy32,dz32,rsq32,rinv32,rinvsq32,r32,qq32,c6_32,c12_32;
1175 __m128 dx33,dy33,dz33,rsq33,rinv33,rinvsq33,r33,qq33,c6_33,c12_33;
1176 __m128 velec,felec,velecsum,facel,crf,krf,krf2;
1177 real *charge;
1178 __m128 dummy_mask,cutoff_mask;
1179 __m128 signbit = _mm_castsi128_ps( _mm_set1_epi32(0x80000000) );
1180 __m128 one = _mm_set1_ps(1.0);
1181 __m128 two = _mm_set1_ps(2.0);
1182 x = xx[0];
1183 f = ff[0];
1184
1185 nri = nlist->nri;
1186 iinr = nlist->iinr;
1187 jindex = nlist->jindex;
1188 jjnr = nlist->jjnr;
1189 shiftidx = nlist->shift;
1190 gid = nlist->gid;
1191 shiftvec = fr->shift_vec[0];
1192 fshift = fr->fshift[0];
1193 facel = _mm_set1_ps(fr->epsfac);
1194 charge = mdatoms->chargeA;
1195 krf = _mm_set1_ps(fr->ic->k_rf);
1196 krf2 = _mm_set1_ps(fr->ic->k_rf*2.0);
1197 crf = _mm_set1_ps(fr->ic->c_rf);
1198
1199 /* Setup water-specific parameters */
1200 inr = nlist->iinr[0];
1201 iq1 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+1]));
1202 iq2 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+2]));
1203 iq3 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+3]));
1204
1205 jq1 = _mm_set1_ps(charge[inr+1]);
1206 jq2 = _mm_set1_ps(charge[inr+2]);
1207 jq3 = _mm_set1_ps(charge[inr+3]);
1208 qq11 = _mm_mul_ps(iq1,jq1);
1209 qq12 = _mm_mul_ps(iq1,jq2);
1210 qq13 = _mm_mul_ps(iq1,jq3);
1211 qq21 = _mm_mul_ps(iq2,jq1);
1212 qq22 = _mm_mul_ps(iq2,jq2);
1213 qq23 = _mm_mul_ps(iq2,jq3);
1214 qq31 = _mm_mul_ps(iq3,jq1);
1215 qq32 = _mm_mul_ps(iq3,jq2);
1216 qq33 = _mm_mul_ps(iq3,jq3);
1217
1218 /* When we use explicit cutoffs the value must be identical for elec and VdW, so use elec as an arbitrary choice */
1219 rcutoff_scalar = fr->rcoulomb;
1220 rcutoff = _mm_set1_ps(rcutoff_scalar);
1221 rcutoff2 = _mm_mul_ps(rcutoff,rcutoff);
1222
1223 /* Avoid stupid compiler warnings */
1224 jnrA = jnrB = jnrC = jnrD = 0;
Value stored to 'jnrA' is never read
1225 j_coord_offsetA = 0;
1226 j_coord_offsetB = 0;
1227 j_coord_offsetC = 0;
1228 j_coord_offsetD = 0;
1229
1230 outeriter = 0;
1231 inneriter = 0;
1232
1233 for(iidx=0;iidx<4*DIM3;iidx++)
1234 {
1235 scratch[iidx] = 0.0;
1236 }
1237
1238 /* Start outer loop over neighborlists */
1239 for(iidx=0; iidx<nri; iidx++)
1240 {
1241 /* Load shift vector for this list */
1242 i_shift_offset = DIM3*shiftidx[iidx];
1243
1244 /* Load limits for loop over neighbors */
1245 j_index_start = jindex[iidx];
1246 j_index_end = jindex[iidx+1];
1247
1248 /* Get outer coordinate index */
1249 inr = iinr[iidx];
1250 i_coord_offset = DIM3*inr;
1251
1252 /* Load i particle coords and add shift vector */
1253 gmx_mm_load_shift_and_3rvec_broadcast_ps(shiftvec+i_shift_offset,x+i_coord_offset+DIM3,
1254 &ix1,&iy1,&iz1,&ix2,&iy2,&iz2,&ix3,&iy3,&iz3);
1255
1256 fix1 = _mm_setzero_ps();
1257 fiy1 = _mm_setzero_ps();
1258 fiz1 = _mm_setzero_ps();
1259 fix2 = _mm_setzero_ps();
1260 fiy2 = _mm_setzero_ps();
1261 fiz2 = _mm_setzero_ps();
1262 fix3 = _mm_setzero_ps();
1263 fiy3 = _mm_setzero_ps();
1264 fiz3 = _mm_setzero_ps();
1265
1266 /* Start inner kernel loop */
1267 for(jidx=j_index_start; jidx<j_index_end && jjnr[jidx+3]>=0; jidx+=4)
1268 {
1269
1270 /* Get j neighbor index, and coordinate index */
1271 jnrA = jjnr[jidx];
1272 jnrB = jjnr[jidx+1];
1273 jnrC = jjnr[jidx+2];
1274 jnrD = jjnr[jidx+3];
1275 j_coord_offsetA = DIM3*jnrA;
1276 j_coord_offsetB = DIM3*jnrB;
1277 j_coord_offsetC = DIM3*jnrC;
1278 j_coord_offsetD = DIM3*jnrD;
1279
1280 /* load j atom coordinates */
1281 gmx_mm_load_3rvec_4ptr_swizzle_ps(x+j_coord_offsetA+DIM3,x+j_coord_offsetB+DIM3,
1282 x+j_coord_offsetC+DIM3,x+j_coord_offsetD+DIM3,
1283 &jx1,&jy1,&jz1,&jx2,&jy2,&jz2,&jx3,&jy3,&jz3);
1284
1285 /* Calculate displacement vector */
1286 dx11 = _mm_sub_ps(ix1,jx1);
1287 dy11 = _mm_sub_ps(iy1,jy1);
1288 dz11 = _mm_sub_ps(iz1,jz1);
1289 dx12 = _mm_sub_ps(ix1,jx2);
1290 dy12 = _mm_sub_ps(iy1,jy2);
1291 dz12 = _mm_sub_ps(iz1,jz2);
1292 dx13 = _mm_sub_ps(ix1,jx3);
1293 dy13 = _mm_sub_ps(iy1,jy3);
1294 dz13 = _mm_sub_ps(iz1,jz3);
1295 dx21 = _mm_sub_ps(ix2,jx1);
1296 dy21 = _mm_sub_ps(iy2,jy1);
1297 dz21 = _mm_sub_ps(iz2,jz1);
1298 dx22 = _mm_sub_ps(ix2,jx2);
1299 dy22 = _mm_sub_ps(iy2,jy2);
1300 dz22 = _mm_sub_ps(iz2,jz2);
1301 dx23 = _mm_sub_ps(ix2,jx3);
1302 dy23 = _mm_sub_ps(iy2,jy3);
1303 dz23 = _mm_sub_ps(iz2,jz3);
1304 dx31 = _mm_sub_ps(ix3,jx1);
1305 dy31 = _mm_sub_ps(iy3,jy1);
1306 dz31 = _mm_sub_ps(iz3,jz1);
1307 dx32 = _mm_sub_ps(ix3,jx2);
1308 dy32 = _mm_sub_ps(iy3,jy2);
1309 dz32 = _mm_sub_ps(iz3,jz2);
1310 dx33 = _mm_sub_ps(ix3,jx3);
1311 dy33 = _mm_sub_ps(iy3,jy3);
1312 dz33 = _mm_sub_ps(iz3,jz3);
1313
1314 /* Calculate squared distance and things based on it */
1315 rsq11 = gmx_mm_calc_rsq_ps(dx11,dy11,dz11);
1316 rsq12 = gmx_mm_calc_rsq_ps(dx12,dy12,dz12);
1317 rsq13 = gmx_mm_calc_rsq_ps(dx13,dy13,dz13);
1318 rsq21 = gmx_mm_calc_rsq_ps(dx21,dy21,dz21);
1319 rsq22 = gmx_mm_calc_rsq_ps(dx22,dy22,dz22);
1320 rsq23 = gmx_mm_calc_rsq_ps(dx23,dy23,dz23);
1321 rsq31 = gmx_mm_calc_rsq_ps(dx31,dy31,dz31);
1322 rsq32 = gmx_mm_calc_rsq_ps(dx32,dy32,dz32);
1323 rsq33 = gmx_mm_calc_rsq_ps(dx33,dy33,dz33);
1324
1325 rinv11 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq11);
1326 rinv12 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq12);
1327 rinv13 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq13);
1328 rinv21 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq21);
1329 rinv22 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq22);
1330 rinv23 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq23);
1331 rinv31 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq31);
1332 rinv32 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq32);
1333 rinv33 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq33);
1334
1335 rinvsq11 = _mm_mul_ps(rinv11,rinv11);
1336 rinvsq12 = _mm_mul_ps(rinv12,rinv12);
1337 rinvsq13 = _mm_mul_ps(rinv13,rinv13);
1338 rinvsq21 = _mm_mul_ps(rinv21,rinv21);
1339 rinvsq22 = _mm_mul_ps(rinv22,rinv22);
1340 rinvsq23 = _mm_mul_ps(rinv23,rinv23);
1341 rinvsq31 = _mm_mul_ps(rinv31,rinv31);
1342 rinvsq32 = _mm_mul_ps(rinv32,rinv32);
1343 rinvsq33 = _mm_mul_ps(rinv33,rinv33);
1344
1345 fjx1 = _mm_setzero_ps();
1346 fjy1 = _mm_setzero_ps();
1347 fjz1 = _mm_setzero_ps();
1348 fjx2 = _mm_setzero_ps();
1349 fjy2 = _mm_setzero_ps();
1350 fjz2 = _mm_setzero_ps();
1351 fjx3 = _mm_setzero_ps();
1352 fjy3 = _mm_setzero_ps();
1353 fjz3 = _mm_setzero_ps();
1354
1355 /**************************
1356 * CALCULATE INTERACTIONS *
1357 **************************/
1358
1359 if (gmx_mm_any_lt(rsq11,rcutoff2))
1360 {
1361
1362 /* REACTION-FIELD ELECTROSTATICS */
1363 felec = _mm_mul_ps(qq11,_mm_sub_ps(_mm_mul_ps(rinv11,rinvsq11),krf2));
1364
1365 cutoff_mask = _mm_cmplt_ps(rsq11,rcutoff2);
1366
1367 fscal = felec;
1368
1369 fscal = _mm_and_ps(fscal,cutoff_mask);
1370
1371 /* Calculate temporary vectorial force */
1372 tx = _mm_mul_ps(fscal,dx11);
1373 ty = _mm_mul_ps(fscal,dy11);
1374 tz = _mm_mul_ps(fscal,dz11);
1375
1376 /* Update vectorial force */
1377 fix1 = _mm_add_ps(fix1,tx);
1378 fiy1 = _mm_add_ps(fiy1,ty);
1379 fiz1 = _mm_add_ps(fiz1,tz);
1380
1381 fjx1 = _mm_add_ps(fjx1,tx);
1382 fjy1 = _mm_add_ps(fjy1,ty);
1383 fjz1 = _mm_add_ps(fjz1,tz);
1384
1385 }
1386
1387 /**************************
1388 * CALCULATE INTERACTIONS *
1389 **************************/
1390
1391 if (gmx_mm_any_lt(rsq12,rcutoff2))
1392 {
1393
1394 /* REACTION-FIELD ELECTROSTATICS */
1395 felec = _mm_mul_ps(qq12,_mm_sub_ps(_mm_mul_ps(rinv12,rinvsq12),krf2));
1396
1397 cutoff_mask = _mm_cmplt_ps(rsq12,rcutoff2);
1398
1399 fscal = felec;
1400
1401 fscal = _mm_and_ps(fscal,cutoff_mask);
1402
1403 /* Calculate temporary vectorial force */
1404 tx = _mm_mul_ps(fscal,dx12);
1405 ty = _mm_mul_ps(fscal,dy12);
1406 tz = _mm_mul_ps(fscal,dz12);
1407
1408 /* Update vectorial force */
1409 fix1 = _mm_add_ps(fix1,tx);
1410 fiy1 = _mm_add_ps(fiy1,ty);
1411 fiz1 = _mm_add_ps(fiz1,tz);
1412
1413 fjx2 = _mm_add_ps(fjx2,tx);
1414 fjy2 = _mm_add_ps(fjy2,ty);
1415 fjz2 = _mm_add_ps(fjz2,tz);
1416
1417 }
1418
1419 /**************************
1420 * CALCULATE INTERACTIONS *
1421 **************************/
1422
1423 if (gmx_mm_any_lt(rsq13,rcutoff2))
1424 {
1425
1426 /* REACTION-FIELD ELECTROSTATICS */
1427 felec = _mm_mul_ps(qq13,_mm_sub_ps(_mm_mul_ps(rinv13,rinvsq13),krf2));
1428
1429 cutoff_mask = _mm_cmplt_ps(rsq13,rcutoff2);
1430
1431 fscal = felec;
1432
1433 fscal = _mm_and_ps(fscal,cutoff_mask);
1434
1435 /* Calculate temporary vectorial force */
1436 tx = _mm_mul_ps(fscal,dx13);
1437 ty = _mm_mul_ps(fscal,dy13);
1438 tz = _mm_mul_ps(fscal,dz13);
1439
1440 /* Update vectorial force */
1441 fix1 = _mm_add_ps(fix1,tx);
1442 fiy1 = _mm_add_ps(fiy1,ty);
1443 fiz1 = _mm_add_ps(fiz1,tz);
1444
1445 fjx3 = _mm_add_ps(fjx3,tx);
1446 fjy3 = _mm_add_ps(fjy3,ty);
1447 fjz3 = _mm_add_ps(fjz3,tz);
1448
1449 }
1450
1451 /**************************
1452 * CALCULATE INTERACTIONS *
1453 **************************/
1454
1455 if (gmx_mm_any_lt(rsq21,rcutoff2))
1456 {
1457
1458 /* REACTION-FIELD ELECTROSTATICS */
1459 felec = _mm_mul_ps(qq21,_mm_sub_ps(_mm_mul_ps(rinv21,rinvsq21),krf2));
1460
1461 cutoff_mask = _mm_cmplt_ps(rsq21,rcutoff2);
1462
1463 fscal = felec;
1464
1465 fscal = _mm_and_ps(fscal,cutoff_mask);
1466
1467 /* Calculate temporary vectorial force */
1468 tx = _mm_mul_ps(fscal,dx21);
1469 ty = _mm_mul_ps(fscal,dy21);
1470 tz = _mm_mul_ps(fscal,dz21);
1471
1472 /* Update vectorial force */
1473 fix2 = _mm_add_ps(fix2,tx);
1474 fiy2 = _mm_add_ps(fiy2,ty);
1475 fiz2 = _mm_add_ps(fiz2,tz);
1476
1477 fjx1 = _mm_add_ps(fjx1,tx);
1478 fjy1 = _mm_add_ps(fjy1,ty);
1479 fjz1 = _mm_add_ps(fjz1,tz);
1480
1481 }
1482
1483 /**************************
1484 * CALCULATE INTERACTIONS *
1485 **************************/
1486
1487 if (gmx_mm_any_lt(rsq22,rcutoff2))
1488 {
1489
1490 /* REACTION-FIELD ELECTROSTATICS */
1491 felec = _mm_mul_ps(qq22,_mm_sub_ps(_mm_mul_ps(rinv22,rinvsq22),krf2));
1492
1493 cutoff_mask = _mm_cmplt_ps(rsq22,rcutoff2);
1494
1495 fscal = felec;
1496
1497 fscal = _mm_and_ps(fscal,cutoff_mask);
1498
1499 /* Calculate temporary vectorial force */
1500 tx = _mm_mul_ps(fscal,dx22);
1501 ty = _mm_mul_ps(fscal,dy22);
1502 tz = _mm_mul_ps(fscal,dz22);
1503
1504 /* Update vectorial force */
1505 fix2 = _mm_add_ps(fix2,tx);
1506 fiy2 = _mm_add_ps(fiy2,ty);
1507 fiz2 = _mm_add_ps(fiz2,tz);
1508
1509 fjx2 = _mm_add_ps(fjx2,tx);
1510 fjy2 = _mm_add_ps(fjy2,ty);
1511 fjz2 = _mm_add_ps(fjz2,tz);
1512
1513 }
1514
1515 /**************************
1516 * CALCULATE INTERACTIONS *
1517 **************************/
1518
1519 if (gmx_mm_any_lt(rsq23,rcutoff2))
1520 {
1521
1522 /* REACTION-FIELD ELECTROSTATICS */
1523 felec = _mm_mul_ps(qq23,_mm_sub_ps(_mm_mul_ps(rinv23,rinvsq23),krf2));
1524
1525 cutoff_mask = _mm_cmplt_ps(rsq23,rcutoff2);
1526
1527 fscal = felec;
1528
1529 fscal = _mm_and_ps(fscal,cutoff_mask);
1530
1531 /* Calculate temporary vectorial force */
1532 tx = _mm_mul_ps(fscal,dx23);
1533 ty = _mm_mul_ps(fscal,dy23);
1534 tz = _mm_mul_ps(fscal,dz23);
1535
1536 /* Update vectorial force */
1537 fix2 = _mm_add_ps(fix2,tx);
1538 fiy2 = _mm_add_ps(fiy2,ty);
1539 fiz2 = _mm_add_ps(fiz2,tz);
1540
1541 fjx3 = _mm_add_ps(fjx3,tx);
1542 fjy3 = _mm_add_ps(fjy3,ty);
1543 fjz3 = _mm_add_ps(fjz3,tz);
1544
1545 }
1546
1547 /**************************
1548 * CALCULATE INTERACTIONS *
1549 **************************/
1550
1551 if (gmx_mm_any_lt(rsq31,rcutoff2))
1552 {
1553
1554 /* REACTION-FIELD ELECTROSTATICS */
1555 felec = _mm_mul_ps(qq31,_mm_sub_ps(_mm_mul_ps(rinv31,rinvsq31),krf2));
1556
1557 cutoff_mask = _mm_cmplt_ps(rsq31,rcutoff2);
1558
1559 fscal = felec;
1560
1561 fscal = _mm_and_ps(fscal,cutoff_mask);
1562
1563 /* Calculate temporary vectorial force */
1564 tx = _mm_mul_ps(fscal,dx31);
1565 ty = _mm_mul_ps(fscal,dy31);
1566 tz = _mm_mul_ps(fscal,dz31);
1567
1568 /* Update vectorial force */
1569 fix3 = _mm_add_ps(fix3,tx);
1570 fiy3 = _mm_add_ps(fiy3,ty);
1571 fiz3 = _mm_add_ps(fiz3,tz);
1572
1573 fjx1 = _mm_add_ps(fjx1,tx);
1574 fjy1 = _mm_add_ps(fjy1,ty);
1575 fjz1 = _mm_add_ps(fjz1,tz);
1576
1577 }
1578
1579 /**************************
1580 * CALCULATE INTERACTIONS *
1581 **************************/
1582
1583 if (gmx_mm_any_lt(rsq32,rcutoff2))
1584 {
1585
1586 /* REACTION-FIELD ELECTROSTATICS */
1587 felec = _mm_mul_ps(qq32,_mm_sub_ps(_mm_mul_ps(rinv32,rinvsq32),krf2));
1588
1589 cutoff_mask = _mm_cmplt_ps(rsq32,rcutoff2);
1590
1591 fscal = felec;
1592
1593 fscal = _mm_and_ps(fscal,cutoff_mask);
1594
1595 /* Calculate temporary vectorial force */
1596 tx = _mm_mul_ps(fscal,dx32);
1597 ty = _mm_mul_ps(fscal,dy32);
1598 tz = _mm_mul_ps(fscal,dz32);
1599
1600 /* Update vectorial force */
1601 fix3 = _mm_add_ps(fix3,tx);
1602 fiy3 = _mm_add_ps(fiy3,ty);
1603 fiz3 = _mm_add_ps(fiz3,tz);
1604
1605 fjx2 = _mm_add_ps(fjx2,tx);
1606 fjy2 = _mm_add_ps(fjy2,ty);
1607 fjz2 = _mm_add_ps(fjz2,tz);
1608
1609 }
1610
1611 /**************************
1612 * CALCULATE INTERACTIONS *
1613 **************************/
1614
1615 if (gmx_mm_any_lt(rsq33,rcutoff2))
1616 {
1617
1618 /* REACTION-FIELD ELECTROSTATICS */
1619 felec = _mm_mul_ps(qq33,_mm_sub_ps(_mm_mul_ps(rinv33,rinvsq33),krf2));
1620
1621 cutoff_mask = _mm_cmplt_ps(rsq33,rcutoff2);
1622
1623 fscal = felec;
1624
1625 fscal = _mm_and_ps(fscal,cutoff_mask);
1626
1627 /* Calculate temporary vectorial force */
1628 tx = _mm_mul_ps(fscal,dx33);
1629 ty = _mm_mul_ps(fscal,dy33);
1630 tz = _mm_mul_ps(fscal,dz33);
1631
1632 /* Update vectorial force */
1633 fix3 = _mm_add_ps(fix3,tx);
1634 fiy3 = _mm_add_ps(fiy3,ty);
1635 fiz3 = _mm_add_ps(fiz3,tz);
1636
1637 fjx3 = _mm_add_ps(fjx3,tx);
1638 fjy3 = _mm_add_ps(fjy3,ty);
1639 fjz3 = _mm_add_ps(fjz3,tz);
1640
1641 }
1642
1643 fjptrA = f+j_coord_offsetA;
1644 fjptrB = f+j_coord_offsetB;
1645 fjptrC = f+j_coord_offsetC;
1646 fjptrD = f+j_coord_offsetD;
1647
1648 gmx_mm_decrement_3rvec_4ptr_swizzle_ps(fjptrA+DIM3,fjptrB+DIM3,fjptrC+DIM3,fjptrD+DIM3,
1649 fjx1,fjy1,fjz1,fjx2,fjy2,fjz2,fjx3,fjy3,fjz3);
1650
1651 /* Inner loop uses 270 flops */
1652 }
1653
1654 if(jidx<j_index_end)
1655 {
1656
1657 /* Get j neighbor index, and coordinate index */
1658 jnrlistA = jjnr[jidx];
1659 jnrlistB = jjnr[jidx+1];
1660 jnrlistC = jjnr[jidx+2];
1661 jnrlistD = jjnr[jidx+3];
1662 /* Sign of each element will be negative for non-real atoms.
1663 * This mask will be 0xFFFFFFFF for dummy entries and 0x0 for real ones,
1664 * so use it as val = _mm_andnot_ps(mask,val) to clear dummy entries.
1665 */
1666 dummy_mask = gmx_mm_castsi128_ps_mm_castsi128_ps(_mm_cmplt_epi32(_mm_loadu_si128((const __m128i *)(jjnr+jidx)),_mm_setzero_si128()));
1667 jnrA = (jnrlistA>=0) ? jnrlistA : 0;
1668 jnrB = (jnrlistB>=0) ? jnrlistB : 0;
1669 jnrC = (jnrlistC>=0) ? jnrlistC : 0;
1670 jnrD = (jnrlistD>=0) ? jnrlistD : 0;
1671 j_coord_offsetA = DIM3*jnrA;
1672 j_coord_offsetB = DIM3*jnrB;
1673 j_coord_offsetC = DIM3*jnrC;
1674 j_coord_offsetD = DIM3*jnrD;
1675
1676 /* load j atom coordinates */
1677 gmx_mm_load_3rvec_4ptr_swizzle_ps(x+j_coord_offsetA+DIM3,x+j_coord_offsetB+DIM3,
1678 x+j_coord_offsetC+DIM3,x+j_coord_offsetD+DIM3,
1679 &jx1,&jy1,&jz1,&jx2,&jy2,&jz2,&jx3,&jy3,&jz3);
1680
1681 /* Calculate displacement vector */
1682 dx11 = _mm_sub_ps(ix1,jx1);
1683 dy11 = _mm_sub_ps(iy1,jy1);
1684 dz11 = _mm_sub_ps(iz1,jz1);
1685 dx12 = _mm_sub_ps(ix1,jx2);
1686 dy12 = _mm_sub_ps(iy1,jy2);
1687 dz12 = _mm_sub_ps(iz1,jz2);
1688 dx13 = _mm_sub_ps(ix1,jx3);
1689 dy13 = _mm_sub_ps(iy1,jy3);
1690 dz13 = _mm_sub_ps(iz1,jz3);
1691 dx21 = _mm_sub_ps(ix2,jx1);
1692 dy21 = _mm_sub_ps(iy2,jy1);
1693 dz21 = _mm_sub_ps(iz2,jz1);
1694 dx22 = _mm_sub_ps(ix2,jx2);
1695 dy22 = _mm_sub_ps(iy2,jy2);
1696 dz22 = _mm_sub_ps(iz2,jz2);
1697 dx23 = _mm_sub_ps(ix2,jx3);
1698 dy23 = _mm_sub_ps(iy2,jy3);
1699 dz23 = _mm_sub_ps(iz2,jz3);
1700 dx31 = _mm_sub_ps(ix3,jx1);
1701 dy31 = _mm_sub_ps(iy3,jy1);
1702 dz31 = _mm_sub_ps(iz3,jz1);
1703 dx32 = _mm_sub_ps(ix3,jx2);
1704 dy32 = _mm_sub_ps(iy3,jy2);
1705 dz32 = _mm_sub_ps(iz3,jz2);
1706 dx33 = _mm_sub_ps(ix3,jx3);
1707 dy33 = _mm_sub_ps(iy3,jy3);
1708 dz33 = _mm_sub_ps(iz3,jz3);
1709
1710 /* Calculate squared distance and things based on it */
1711 rsq11 = gmx_mm_calc_rsq_ps(dx11,dy11,dz11);
1712 rsq12 = gmx_mm_calc_rsq_ps(dx12,dy12,dz12);
1713 rsq13 = gmx_mm_calc_rsq_ps(dx13,dy13,dz13);
1714 rsq21 = gmx_mm_calc_rsq_ps(dx21,dy21,dz21);
1715 rsq22 = gmx_mm_calc_rsq_ps(dx22,dy22,dz22);
1716 rsq23 = gmx_mm_calc_rsq_ps(dx23,dy23,dz23);
1717 rsq31 = gmx_mm_calc_rsq_ps(dx31,dy31,dz31);
1718 rsq32 = gmx_mm_calc_rsq_ps(dx32,dy32,dz32);
1719 rsq33 = gmx_mm_calc_rsq_ps(dx33,dy33,dz33);
1720
1721 rinv11 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq11);
1722 rinv12 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq12);
1723 rinv13 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq13);
1724 rinv21 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq21);
1725 rinv22 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq22);
1726 rinv23 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq23);
1727 rinv31 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq31);
1728 rinv32 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq32);
1729 rinv33 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq33);
1730
1731 rinvsq11 = _mm_mul_ps(rinv11,rinv11);
1732 rinvsq12 = _mm_mul_ps(rinv12,rinv12);
1733 rinvsq13 = _mm_mul_ps(rinv13,rinv13);
1734 rinvsq21 = _mm_mul_ps(rinv21,rinv21);
1735 rinvsq22 = _mm_mul_ps(rinv22,rinv22);
1736 rinvsq23 = _mm_mul_ps(rinv23,rinv23);
1737 rinvsq31 = _mm_mul_ps(rinv31,rinv31);
1738 rinvsq32 = _mm_mul_ps(rinv32,rinv32);
1739 rinvsq33 = _mm_mul_ps(rinv33,rinv33);
1740
1741 fjx1 = _mm_setzero_ps();
1742 fjy1 = _mm_setzero_ps();
1743 fjz1 = _mm_setzero_ps();
1744 fjx2 = _mm_setzero_ps();
1745 fjy2 = _mm_setzero_ps();
1746 fjz2 = _mm_setzero_ps();
1747 fjx3 = _mm_setzero_ps();
1748 fjy3 = _mm_setzero_ps();
1749 fjz3 = _mm_setzero_ps();
1750
1751 /**************************
1752 * CALCULATE INTERACTIONS *
1753 **************************/
1754
1755 if (gmx_mm_any_lt(rsq11,rcutoff2))
1756 {
1757
1758 /* REACTION-FIELD ELECTROSTATICS */
1759 felec = _mm_mul_ps(qq11,_mm_sub_ps(_mm_mul_ps(rinv11,rinvsq11),krf2));
1760
1761 cutoff_mask = _mm_cmplt_ps(rsq11,rcutoff2);
1762
1763 fscal = felec;
1764
1765 fscal = _mm_and_ps(fscal,cutoff_mask);
1766
1767 fscal = _mm_andnot_ps(dummy_mask,fscal);
1768
1769 /* Calculate temporary vectorial force */
1770 tx = _mm_mul_ps(fscal,dx11);
1771 ty = _mm_mul_ps(fscal,dy11);
1772 tz = _mm_mul_ps(fscal,dz11);
1773
1774 /* Update vectorial force */
1775 fix1 = _mm_add_ps(fix1,tx);
1776 fiy1 = _mm_add_ps(fiy1,ty);
1777 fiz1 = _mm_add_ps(fiz1,tz);
1778
1779 fjx1 = _mm_add_ps(fjx1,tx);
1780 fjy1 = _mm_add_ps(fjy1,ty);
1781 fjz1 = _mm_add_ps(fjz1,tz);
1782
1783 }
1784
1785 /**************************
1786 * CALCULATE INTERACTIONS *
1787 **************************/
1788
1789 if (gmx_mm_any_lt(rsq12,rcutoff2))
1790 {
1791
1792 /* REACTION-FIELD ELECTROSTATICS */
1793 felec = _mm_mul_ps(qq12,_mm_sub_ps(_mm_mul_ps(rinv12,rinvsq12),krf2));
1794
1795 cutoff_mask = _mm_cmplt_ps(rsq12,rcutoff2);
1796
1797 fscal = felec;
1798
1799 fscal = _mm_and_ps(fscal,cutoff_mask);
1800
1801 fscal = _mm_andnot_ps(dummy_mask,fscal);
1802
1803 /* Calculate temporary vectorial force */
1804 tx = _mm_mul_ps(fscal,dx12);
1805 ty = _mm_mul_ps(fscal,dy12);
1806 tz = _mm_mul_ps(fscal,dz12);
1807
1808 /* Update vectorial force */
1809 fix1 = _mm_add_ps(fix1,tx);
1810 fiy1 = _mm_add_ps(fiy1,ty);
1811 fiz1 = _mm_add_ps(fiz1,tz);
1812
1813 fjx2 = _mm_add_ps(fjx2,tx);
1814 fjy2 = _mm_add_ps(fjy2,ty);
1815 fjz2 = _mm_add_ps(fjz2,tz);
1816
1817 }
1818
1819 /**************************
1820 * CALCULATE INTERACTIONS *
1821 **************************/
1822
1823 if (gmx_mm_any_lt(rsq13,rcutoff2))
1824 {
1825
1826 /* REACTION-FIELD ELECTROSTATICS */
1827 felec = _mm_mul_ps(qq13,_mm_sub_ps(_mm_mul_ps(rinv13,rinvsq13),krf2));
1828
1829 cutoff_mask = _mm_cmplt_ps(rsq13,rcutoff2);
1830
1831 fscal = felec;
1832
1833 fscal = _mm_and_ps(fscal,cutoff_mask);
1834
1835 fscal = _mm_andnot_ps(dummy_mask,fscal);
1836
1837 /* Calculate temporary vectorial force */
1838 tx = _mm_mul_ps(fscal,dx13);
1839 ty = _mm_mul_ps(fscal,dy13);
1840 tz = _mm_mul_ps(fscal,dz13);
1841
1842 /* Update vectorial force */
1843 fix1 = _mm_add_ps(fix1,tx);
1844 fiy1 = _mm_add_ps(fiy1,ty);
1845 fiz1 = _mm_add_ps(fiz1,tz);
1846
1847 fjx3 = _mm_add_ps(fjx3,tx);
1848 fjy3 = _mm_add_ps(fjy3,ty);
1849 fjz3 = _mm_add_ps(fjz3,tz);
1850
1851 }
1852
1853 /**************************
1854 * CALCULATE INTERACTIONS *
1855 **************************/
1856
1857 if (gmx_mm_any_lt(rsq21,rcutoff2))
1858 {
1859
1860 /* REACTION-FIELD ELECTROSTATICS */
1861 felec = _mm_mul_ps(qq21,_mm_sub_ps(_mm_mul_ps(rinv21,rinvsq21),krf2));
1862
1863 cutoff_mask = _mm_cmplt_ps(rsq21,rcutoff2);
1864
1865 fscal = felec;
1866
1867 fscal = _mm_and_ps(fscal,cutoff_mask);
1868
1869 fscal = _mm_andnot_ps(dummy_mask,fscal);
1870
1871 /* Calculate temporary vectorial force */
1872 tx = _mm_mul_ps(fscal,dx21);
1873 ty = _mm_mul_ps(fscal,dy21);
1874 tz = _mm_mul_ps(fscal,dz21);
1875
1876 /* Update vectorial force */
1877 fix2 = _mm_add_ps(fix2,tx);
1878 fiy2 = _mm_add_ps(fiy2,ty);
1879 fiz2 = _mm_add_ps(fiz2,tz);
1880
1881 fjx1 = _mm_add_ps(fjx1,tx);
1882 fjy1 = _mm_add_ps(fjy1,ty);
1883 fjz1 = _mm_add_ps(fjz1,tz);
1884
1885 }
1886
1887 /**************************
1888 * CALCULATE INTERACTIONS *
1889 **************************/
1890
1891 if (gmx_mm_any_lt(rsq22,rcutoff2))
1892 {
1893
1894 /* REACTION-FIELD ELECTROSTATICS */
1895 felec = _mm_mul_ps(qq22,_mm_sub_ps(_mm_mul_ps(rinv22,rinvsq22),krf2));
1896
1897 cutoff_mask = _mm_cmplt_ps(rsq22,rcutoff2);
1898
1899 fscal = felec;
1900
1901 fscal = _mm_and_ps(fscal,cutoff_mask);
1902
1903 fscal = _mm_andnot_ps(dummy_mask,fscal);
1904
1905 /* Calculate temporary vectorial force */
1906 tx = _mm_mul_ps(fscal,dx22);
1907 ty = _mm_mul_ps(fscal,dy22);
1908 tz = _mm_mul_ps(fscal,dz22);
1909
1910 /* Update vectorial force */
1911 fix2 = _mm_add_ps(fix2,tx);
1912 fiy2 = _mm_add_ps(fiy2,ty);
1913 fiz2 = _mm_add_ps(fiz2,tz);
1914
1915 fjx2 = _mm_add_ps(fjx2,tx);
1916 fjy2 = _mm_add_ps(fjy2,ty);
1917 fjz2 = _mm_add_ps(fjz2,tz);
1918
1919 }
1920
1921 /**************************
1922 * CALCULATE INTERACTIONS *
1923 **************************/
1924
1925 if (gmx_mm_any_lt(rsq23,rcutoff2))
1926 {
1927
1928 /* REACTION-FIELD ELECTROSTATICS */
1929 felec = _mm_mul_ps(qq23,_mm_sub_ps(_mm_mul_ps(rinv23,rinvsq23),krf2));
1930
1931 cutoff_mask = _mm_cmplt_ps(rsq23,rcutoff2);
1932
1933 fscal = felec;
1934
1935 fscal = _mm_and_ps(fscal,cutoff_mask);
1936
1937 fscal = _mm_andnot_ps(dummy_mask,fscal);
1938
1939 /* Calculate temporary vectorial force */
1940 tx = _mm_mul_ps(fscal,dx23);
1941 ty = _mm_mul_ps(fscal,dy23);
1942 tz = _mm_mul_ps(fscal,dz23);
1943
1944 /* Update vectorial force */
1945 fix2 = _mm_add_ps(fix2,tx);
1946 fiy2 = _mm_add_ps(fiy2,ty);
1947 fiz2 = _mm_add_ps(fiz2,tz);
1948
1949 fjx3 = _mm_add_ps(fjx3,tx);
1950 fjy3 = _mm_add_ps(fjy3,ty);
1951 fjz3 = _mm_add_ps(fjz3,tz);
1952
1953 }
1954
1955 /**************************
1956 * CALCULATE INTERACTIONS *
1957 **************************/
1958
1959 if (gmx_mm_any_lt(rsq31,rcutoff2))
1960 {
1961
1962 /* REACTION-FIELD ELECTROSTATICS */
1963 felec = _mm_mul_ps(qq31,_mm_sub_ps(_mm_mul_ps(rinv31,rinvsq31),krf2));
1964
1965 cutoff_mask = _mm_cmplt_ps(rsq31,rcutoff2);
1966
1967 fscal = felec;
1968
1969 fscal = _mm_and_ps(fscal,cutoff_mask);
1970
1971 fscal = _mm_andnot_ps(dummy_mask,fscal);
1972
1973 /* Calculate temporary vectorial force */
1974 tx = _mm_mul_ps(fscal,dx31);
1975 ty = _mm_mul_ps(fscal,dy31);
1976 tz = _mm_mul_ps(fscal,dz31);
1977
1978 /* Update vectorial force */
1979 fix3 = _mm_add_ps(fix3,tx);
1980 fiy3 = _mm_add_ps(fiy3,ty);
1981 fiz3 = _mm_add_ps(fiz3,tz);
1982
1983 fjx1 = _mm_add_ps(fjx1,tx);
1984 fjy1 = _mm_add_ps(fjy1,ty);
1985 fjz1 = _mm_add_ps(fjz1,tz);
1986
1987 }
1988
1989 /**************************
1990 * CALCULATE INTERACTIONS *
1991 **************************/
1992
1993 if (gmx_mm_any_lt(rsq32,rcutoff2))
1994 {
1995
1996 /* REACTION-FIELD ELECTROSTATICS */
1997 felec = _mm_mul_ps(qq32,_mm_sub_ps(_mm_mul_ps(rinv32,rinvsq32),krf2));
1998
1999 cutoff_mask = _mm_cmplt_ps(rsq32,rcutoff2);
2000
2001 fscal = felec;
2002
2003 fscal = _mm_and_ps(fscal,cutoff_mask);
2004
2005 fscal = _mm_andnot_ps(dummy_mask,fscal);
2006
2007 /* Calculate temporary vectorial force */
2008 tx = _mm_mul_ps(fscal,dx32);
2009 ty = _mm_mul_ps(fscal,dy32);
2010 tz = _mm_mul_ps(fscal,dz32);
2011
2012 /* Update vectorial force */
2013 fix3 = _mm_add_ps(fix3,tx);
2014 fiy3 = _mm_add_ps(fiy3,ty);
2015 fiz3 = _mm_add_ps(fiz3,tz);
2016
2017 fjx2 = _mm_add_ps(fjx2,tx);
2018 fjy2 = _mm_add_ps(fjy2,ty);
2019 fjz2 = _mm_add_ps(fjz2,tz);
2020
2021 }
2022
2023 /**************************
2024 * CALCULATE INTERACTIONS *
2025 **************************/
2026
2027 if (gmx_mm_any_lt(rsq33,rcutoff2))
2028 {
2029
2030 /* REACTION-FIELD ELECTROSTATICS */
2031 felec = _mm_mul_ps(qq33,_mm_sub_ps(_mm_mul_ps(rinv33,rinvsq33),krf2));
2032
2033 cutoff_mask = _mm_cmplt_ps(rsq33,rcutoff2);
2034
2035 fscal = felec;
2036
2037 fscal = _mm_and_ps(fscal,cutoff_mask);
2038
2039 fscal = _mm_andnot_ps(dummy_mask,fscal);
2040
2041 /* Calculate temporary vectorial force */
2042 tx = _mm_mul_ps(fscal,dx33);
2043 ty = _mm_mul_ps(fscal,dy33);
2044 tz = _mm_mul_ps(fscal,dz33);
2045
2046 /* Update vectorial force */
2047 fix3 = _mm_add_ps(fix3,tx);
2048 fiy3 = _mm_add_ps(fiy3,ty);
2049 fiz3 = _mm_add_ps(fiz3,tz);
2050
2051 fjx3 = _mm_add_ps(fjx3,tx);
2052 fjy3 = _mm_add_ps(fjy3,ty);
2053 fjz3 = _mm_add_ps(fjz3,tz);
2054
2055 }
2056
2057 fjptrA = (jnrlistA>=0) ? f+j_coord_offsetA : scratch;
2058 fjptrB = (jnrlistB>=0) ? f+j_coord_offsetB : scratch;
2059 fjptrC = (jnrlistC>=0) ? f+j_coord_offsetC : scratch;
2060 fjptrD = (jnrlistD>=0) ? f+j_coord_offsetD : scratch;
2061
2062 gmx_mm_decrement_3rvec_4ptr_swizzle_ps(fjptrA+DIM3,fjptrB+DIM3,fjptrC+DIM3,fjptrD+DIM3,
2063 fjx1,fjy1,fjz1,fjx2,fjy2,fjz2,fjx3,fjy3,fjz3);
2064
2065 /* Inner loop uses 270 flops */
2066 }
2067
2068 /* End of innermost loop */
2069
2070 gmx_mm_update_iforce_3atom_swizzle_ps(fix1,fiy1,fiz1,fix2,fiy2,fiz2,fix3,fiy3,fiz3,
2071 f+i_coord_offset+DIM3,fshift+i_shift_offset);
2072
2073 /* Increment number of inner iterations */
2074 inneriter += j_index_end - j_index_start;
2075
2076 /* Outer loop uses 18 flops */
2077 }
2078
2079 /* Increment number of outer iterations */
2080 outeriter += nri;
2081
2082 /* Update outer/inner flops */
2083
2084 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_W4W4_F,outeriter*18 + inneriter*270)(nrnb)->n[eNR_NBKERNEL_ELEC_W4W4_F] += outeriter*18 + inneriter
*270
;
2085}