Bug Summary

File:gromacs/gmxlib/nonbonded/nb_kernel_c/nb_kernel_ElecRF_VdwLJ_GeomW4W4_c.c
Location:line 664, column 5
Description:Value stored to 'gid' 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
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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.
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34 */
35/*
36 * Note: this file was generated by the GROMACS c 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/*
50 * Gromacs nonbonded kernel: nb_kernel_ElecRF_VdwLJ_GeomW4W4_VF_c
51 * Electrostatics interaction: ReactionField
52 * VdW interaction: LennardJones
53 * Geometry: Water4-Water4
54 * Calculate force/pot: PotentialAndForce
55 */
56void
57nb_kernel_ElecRF_VdwLJ_GeomW4W4_VF_c
58 (t_nblist * gmx_restrict__restrict nlist,
59 rvec * gmx_restrict__restrict xx,
60 rvec * gmx_restrict__restrict ff,
61 t_forcerec * gmx_restrict__restrict fr,
62 t_mdatoms * gmx_restrict__restrict mdatoms,
63 nb_kernel_data_t gmx_unused__attribute__ ((unused)) * gmx_restrict__restrict kernel_data,
64 t_nrnb * gmx_restrict__restrict nrnb)
65{
66 int i_shift_offset,i_coord_offset,j_coord_offset;
67 int j_index_start,j_index_end;
68 int nri,inr,ggid,iidx,jidx,jnr,outeriter,inneriter;
69 real shX,shY,shZ,tx,ty,tz,fscal,rcutoff,rcutoff2;
70 int *iinr,*jindex,*jjnr,*shiftidx,*gid;
71 real *shiftvec,*fshift,*x,*f;
72 int vdwioffset0;
73 real ix0,iy0,iz0,fix0,fiy0,fiz0,iq0,isai0;
74 int vdwioffset1;
75 real ix1,iy1,iz1,fix1,fiy1,fiz1,iq1,isai1;
76 int vdwioffset2;
77 real ix2,iy2,iz2,fix2,fiy2,fiz2,iq2,isai2;
78 int vdwioffset3;
79 real ix3,iy3,iz3,fix3,fiy3,fiz3,iq3,isai3;
80 int vdwjidx0;
81 real jx0,jy0,jz0,fjx0,fjy0,fjz0,jq0,isaj0;
82 int vdwjidx1;
83 real jx1,jy1,jz1,fjx1,fjy1,fjz1,jq1,isaj1;
84 int vdwjidx2;
85 real jx2,jy2,jz2,fjx2,fjy2,fjz2,jq2,isaj2;
86 int vdwjidx3;
87 real jx3,jy3,jz3,fjx3,fjy3,fjz3,jq3,isaj3;
88 real dx00,dy00,dz00,rsq00,rinv00,rinvsq00,r00,qq00,c6_00,c12_00,cexp1_00,cexp2_00;
89 real dx11,dy11,dz11,rsq11,rinv11,rinvsq11,r11,qq11,c6_11,c12_11,cexp1_11,cexp2_11;
90 real dx12,dy12,dz12,rsq12,rinv12,rinvsq12,r12,qq12,c6_12,c12_12,cexp1_12,cexp2_12;
91 real dx13,dy13,dz13,rsq13,rinv13,rinvsq13,r13,qq13,c6_13,c12_13,cexp1_13,cexp2_13;
92 real dx21,dy21,dz21,rsq21,rinv21,rinvsq21,r21,qq21,c6_21,c12_21,cexp1_21,cexp2_21;
93 real dx22,dy22,dz22,rsq22,rinv22,rinvsq22,r22,qq22,c6_22,c12_22,cexp1_22,cexp2_22;
94 real dx23,dy23,dz23,rsq23,rinv23,rinvsq23,r23,qq23,c6_23,c12_23,cexp1_23,cexp2_23;
95 real dx31,dy31,dz31,rsq31,rinv31,rinvsq31,r31,qq31,c6_31,c12_31,cexp1_31,cexp2_31;
96 real dx32,dy32,dz32,rsq32,rinv32,rinvsq32,r32,qq32,c6_32,c12_32,cexp1_32,cexp2_32;
97 real dx33,dy33,dz33,rsq33,rinv33,rinvsq33,r33,qq33,c6_33,c12_33,cexp1_33,cexp2_33;
98 real velec,felec,velecsum,facel,crf,krf,krf2;
99 real *charge;
100 int nvdwtype;
101 real rinvsix,rvdw,vvdw,vvdw6,vvdw12,fvdw,fvdw6,fvdw12,vvdwsum,br,vvdwexp,sh_vdw_invrcut6;
102 int *vdwtype;
103 real *vdwparam;
104
105 x = xx[0];
106 f = ff[0];
107
108 nri = nlist->nri;
109 iinr = nlist->iinr;
110 jindex = nlist->jindex;
111 jjnr = nlist->jjnr;
112 shiftidx = nlist->shift;
113 gid = nlist->gid;
114 shiftvec = fr->shift_vec[0];
115 fshift = fr->fshift[0];
116 facel = fr->epsfac;
117 charge = mdatoms->chargeA;
118 krf = fr->ic->k_rf;
119 krf2 = krf*2.0;
120 crf = fr->ic->c_rf;
121 nvdwtype = fr->ntype;
122 vdwparam = fr->nbfp;
123 vdwtype = mdatoms->typeA;
124
125 /* Setup water-specific parameters */
126 inr = nlist->iinr[0];
127 iq1 = facel*charge[inr+1];
128 iq2 = facel*charge[inr+2];
129 iq3 = facel*charge[inr+3];
130 vdwioffset0 = 2*nvdwtype*vdwtype[inr+0];
131
132 jq1 = charge[inr+1];
133 jq2 = charge[inr+2];
134 jq3 = charge[inr+3];
135 vdwjidx0 = 2*vdwtype[inr+0];
136 c6_00 = vdwparam[vdwioffset0+vdwjidx0];
137 c12_00 = vdwparam[vdwioffset0+vdwjidx0+1];
138 qq11 = iq1*jq1;
139 qq12 = iq1*jq2;
140 qq13 = iq1*jq3;
141 qq21 = iq2*jq1;
142 qq22 = iq2*jq2;
143 qq23 = iq2*jq3;
144 qq31 = iq3*jq1;
145 qq32 = iq3*jq2;
146 qq33 = iq3*jq3;
147
148 outeriter = 0;
149 inneriter = 0;
150
151 /* Start outer loop over neighborlists */
152 for(iidx=0; iidx<nri; iidx++)
153 {
154 /* Load shift vector for this list */
155 i_shift_offset = DIM3*shiftidx[iidx];
156 shX = shiftvec[i_shift_offset+XX0];
157 shY = shiftvec[i_shift_offset+YY1];
158 shZ = shiftvec[i_shift_offset+ZZ2];
159
160 /* Load limits for loop over neighbors */
161 j_index_start = jindex[iidx];
162 j_index_end = jindex[iidx+1];
163
164 /* Get outer coordinate index */
165 inr = iinr[iidx];
166 i_coord_offset = DIM3*inr;
167
168 /* Load i particle coords and add shift vector */
169 ix0 = shX + x[i_coord_offset+DIM3*0+XX0];
170 iy0 = shY + x[i_coord_offset+DIM3*0+YY1];
171 iz0 = shZ + x[i_coord_offset+DIM3*0+ZZ2];
172 ix1 = shX + x[i_coord_offset+DIM3*1+XX0];
173 iy1 = shY + x[i_coord_offset+DIM3*1+YY1];
174 iz1 = shZ + x[i_coord_offset+DIM3*1+ZZ2];
175 ix2 = shX + x[i_coord_offset+DIM3*2+XX0];
176 iy2 = shY + x[i_coord_offset+DIM3*2+YY1];
177 iz2 = shZ + x[i_coord_offset+DIM3*2+ZZ2];
178 ix3 = shX + x[i_coord_offset+DIM3*3+XX0];
179 iy3 = shY + x[i_coord_offset+DIM3*3+YY1];
180 iz3 = shZ + x[i_coord_offset+DIM3*3+ZZ2];
181
182 fix0 = 0.0;
183 fiy0 = 0.0;
184 fiz0 = 0.0;
185 fix1 = 0.0;
186 fiy1 = 0.0;
187 fiz1 = 0.0;
188 fix2 = 0.0;
189 fiy2 = 0.0;
190 fiz2 = 0.0;
191 fix3 = 0.0;
192 fiy3 = 0.0;
193 fiz3 = 0.0;
194
195 /* Reset potential sums */
196 velecsum = 0.0;
197 vvdwsum = 0.0;
198
199 /* Start inner kernel loop */
200 for(jidx=j_index_start; jidx<j_index_end; jidx++)
201 {
202 /* Get j neighbor index, and coordinate index */
203 jnr = jjnr[jidx];
204 j_coord_offset = DIM3*jnr;
205
206 /* load j atom coordinates */
207 jx0 = x[j_coord_offset+DIM3*0+XX0];
208 jy0 = x[j_coord_offset+DIM3*0+YY1];
209 jz0 = x[j_coord_offset+DIM3*0+ZZ2];
210 jx1 = x[j_coord_offset+DIM3*1+XX0];
211 jy1 = x[j_coord_offset+DIM3*1+YY1];
212 jz1 = x[j_coord_offset+DIM3*1+ZZ2];
213 jx2 = x[j_coord_offset+DIM3*2+XX0];
214 jy2 = x[j_coord_offset+DIM3*2+YY1];
215 jz2 = x[j_coord_offset+DIM3*2+ZZ2];
216 jx3 = x[j_coord_offset+DIM3*3+XX0];
217 jy3 = x[j_coord_offset+DIM3*3+YY1];
218 jz3 = x[j_coord_offset+DIM3*3+ZZ2];
219
220 /* Calculate displacement vector */
221 dx00 = ix0 - jx0;
222 dy00 = iy0 - jy0;
223 dz00 = iz0 - jz0;
224 dx11 = ix1 - jx1;
225 dy11 = iy1 - jy1;
226 dz11 = iz1 - jz1;
227 dx12 = ix1 - jx2;
228 dy12 = iy1 - jy2;
229 dz12 = iz1 - jz2;
230 dx13 = ix1 - jx3;
231 dy13 = iy1 - jy3;
232 dz13 = iz1 - jz3;
233 dx21 = ix2 - jx1;
234 dy21 = iy2 - jy1;
235 dz21 = iz2 - jz1;
236 dx22 = ix2 - jx2;
237 dy22 = iy2 - jy2;
238 dz22 = iz2 - jz2;
239 dx23 = ix2 - jx3;
240 dy23 = iy2 - jy3;
241 dz23 = iz2 - jz3;
242 dx31 = ix3 - jx1;
243 dy31 = iy3 - jy1;
244 dz31 = iz3 - jz1;
245 dx32 = ix3 - jx2;
246 dy32 = iy3 - jy2;
247 dz32 = iz3 - jz2;
248 dx33 = ix3 - jx3;
249 dy33 = iy3 - jy3;
250 dz33 = iz3 - jz3;
251
252 /* Calculate squared distance and things based on it */
253 rsq00 = dx00*dx00+dy00*dy00+dz00*dz00;
254 rsq11 = dx11*dx11+dy11*dy11+dz11*dz11;
255 rsq12 = dx12*dx12+dy12*dy12+dz12*dz12;
256 rsq13 = dx13*dx13+dy13*dy13+dz13*dz13;
257 rsq21 = dx21*dx21+dy21*dy21+dz21*dz21;
258 rsq22 = dx22*dx22+dy22*dy22+dz22*dz22;
259 rsq23 = dx23*dx23+dy23*dy23+dz23*dz23;
260 rsq31 = dx31*dx31+dy31*dy31+dz31*dz31;
261 rsq32 = dx32*dx32+dy32*dy32+dz32*dz32;
262 rsq33 = dx33*dx33+dy33*dy33+dz33*dz33;
263
264 rinv11 = gmx_invsqrt(rsq11)gmx_software_invsqrt(rsq11);
265 rinv12 = gmx_invsqrt(rsq12)gmx_software_invsqrt(rsq12);
266 rinv13 = gmx_invsqrt(rsq13)gmx_software_invsqrt(rsq13);
267 rinv21 = gmx_invsqrt(rsq21)gmx_software_invsqrt(rsq21);
268 rinv22 = gmx_invsqrt(rsq22)gmx_software_invsqrt(rsq22);
269 rinv23 = gmx_invsqrt(rsq23)gmx_software_invsqrt(rsq23);
270 rinv31 = gmx_invsqrt(rsq31)gmx_software_invsqrt(rsq31);
271 rinv32 = gmx_invsqrt(rsq32)gmx_software_invsqrt(rsq32);
272 rinv33 = gmx_invsqrt(rsq33)gmx_software_invsqrt(rsq33);
273
274 rinvsq00 = 1.0/rsq00;
275 rinvsq11 = rinv11*rinv11;
276 rinvsq12 = rinv12*rinv12;
277 rinvsq13 = rinv13*rinv13;
278 rinvsq21 = rinv21*rinv21;
279 rinvsq22 = rinv22*rinv22;
280 rinvsq23 = rinv23*rinv23;
281 rinvsq31 = rinv31*rinv31;
282 rinvsq32 = rinv32*rinv32;
283 rinvsq33 = rinv33*rinv33;
284
285 /**************************
286 * CALCULATE INTERACTIONS *
287 **************************/
288
289 /* LENNARD-JONES DISPERSION/REPULSION */
290
291 rinvsix = rinvsq00*rinvsq00*rinvsq00;
292 vvdw6 = c6_00*rinvsix;
293 vvdw12 = c12_00*rinvsix*rinvsix;
294 vvdw = vvdw12*(1.0/12.0) - vvdw6*(1.0/6.0);
295 fvdw = (vvdw12-vvdw6)*rinvsq00;
296
297 /* Update potential sums from outer loop */
298 vvdwsum += vvdw;
299
300 fscal = fvdw;
301
302 /* Calculate temporary vectorial force */
303 tx = fscal*dx00;
304 ty = fscal*dy00;
305 tz = fscal*dz00;
306
307 /* Update vectorial force */
308 fix0 += tx;
309 fiy0 += ty;
310 fiz0 += tz;
311 f[j_coord_offset+DIM3*0+XX0] -= tx;
312 f[j_coord_offset+DIM3*0+YY1] -= ty;
313 f[j_coord_offset+DIM3*0+ZZ2] -= tz;
314
315 /**************************
316 * CALCULATE INTERACTIONS *
317 **************************/
318
319 /* REACTION-FIELD ELECTROSTATICS */
320 velec = qq11*(rinv11+krf*rsq11-crf);
321 felec = qq11*(rinv11*rinvsq11-krf2);
322
323 /* Update potential sums from outer loop */
324 velecsum += velec;
325
326 fscal = felec;
327
328 /* Calculate temporary vectorial force */
329 tx = fscal*dx11;
330 ty = fscal*dy11;
331 tz = fscal*dz11;
332
333 /* Update vectorial force */
334 fix1 += tx;
335 fiy1 += ty;
336 fiz1 += tz;
337 f[j_coord_offset+DIM3*1+XX0] -= tx;
338 f[j_coord_offset+DIM3*1+YY1] -= ty;
339 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
340
341 /**************************
342 * CALCULATE INTERACTIONS *
343 **************************/
344
345 /* REACTION-FIELD ELECTROSTATICS */
346 velec = qq12*(rinv12+krf*rsq12-crf);
347 felec = qq12*(rinv12*rinvsq12-krf2);
348
349 /* Update potential sums from outer loop */
350 velecsum += velec;
351
352 fscal = felec;
353
354 /* Calculate temporary vectorial force */
355 tx = fscal*dx12;
356 ty = fscal*dy12;
357 tz = fscal*dz12;
358
359 /* Update vectorial force */
360 fix1 += tx;
361 fiy1 += ty;
362 fiz1 += tz;
363 f[j_coord_offset+DIM3*2+XX0] -= tx;
364 f[j_coord_offset+DIM3*2+YY1] -= ty;
365 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
366
367 /**************************
368 * CALCULATE INTERACTIONS *
369 **************************/
370
371 /* REACTION-FIELD ELECTROSTATICS */
372 velec = qq13*(rinv13+krf*rsq13-crf);
373 felec = qq13*(rinv13*rinvsq13-krf2);
374
375 /* Update potential sums from outer loop */
376 velecsum += velec;
377
378 fscal = felec;
379
380 /* Calculate temporary vectorial force */
381 tx = fscal*dx13;
382 ty = fscal*dy13;
383 tz = fscal*dz13;
384
385 /* Update vectorial force */
386 fix1 += tx;
387 fiy1 += ty;
388 fiz1 += tz;
389 f[j_coord_offset+DIM3*3+XX0] -= tx;
390 f[j_coord_offset+DIM3*3+YY1] -= ty;
391 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
392
393 /**************************
394 * CALCULATE INTERACTIONS *
395 **************************/
396
397 /* REACTION-FIELD ELECTROSTATICS */
398 velec = qq21*(rinv21+krf*rsq21-crf);
399 felec = qq21*(rinv21*rinvsq21-krf2);
400
401 /* Update potential sums from outer loop */
402 velecsum += velec;
403
404 fscal = felec;
405
406 /* Calculate temporary vectorial force */
407 tx = fscal*dx21;
408 ty = fscal*dy21;
409 tz = fscal*dz21;
410
411 /* Update vectorial force */
412 fix2 += tx;
413 fiy2 += ty;
414 fiz2 += tz;
415 f[j_coord_offset+DIM3*1+XX0] -= tx;
416 f[j_coord_offset+DIM3*1+YY1] -= ty;
417 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
418
419 /**************************
420 * CALCULATE INTERACTIONS *
421 **************************/
422
423 /* REACTION-FIELD ELECTROSTATICS */
424 velec = qq22*(rinv22+krf*rsq22-crf);
425 felec = qq22*(rinv22*rinvsq22-krf2);
426
427 /* Update potential sums from outer loop */
428 velecsum += velec;
429
430 fscal = felec;
431
432 /* Calculate temporary vectorial force */
433 tx = fscal*dx22;
434 ty = fscal*dy22;
435 tz = fscal*dz22;
436
437 /* Update vectorial force */
438 fix2 += tx;
439 fiy2 += ty;
440 fiz2 += tz;
441 f[j_coord_offset+DIM3*2+XX0] -= tx;
442 f[j_coord_offset+DIM3*2+YY1] -= ty;
443 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
444
445 /**************************
446 * CALCULATE INTERACTIONS *
447 **************************/
448
449 /* REACTION-FIELD ELECTROSTATICS */
450 velec = qq23*(rinv23+krf*rsq23-crf);
451 felec = qq23*(rinv23*rinvsq23-krf2);
452
453 /* Update potential sums from outer loop */
454 velecsum += velec;
455
456 fscal = felec;
457
458 /* Calculate temporary vectorial force */
459 tx = fscal*dx23;
460 ty = fscal*dy23;
461 tz = fscal*dz23;
462
463 /* Update vectorial force */
464 fix2 += tx;
465 fiy2 += ty;
466 fiz2 += tz;
467 f[j_coord_offset+DIM3*3+XX0] -= tx;
468 f[j_coord_offset+DIM3*3+YY1] -= ty;
469 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
470
471 /**************************
472 * CALCULATE INTERACTIONS *
473 **************************/
474
475 /* REACTION-FIELD ELECTROSTATICS */
476 velec = qq31*(rinv31+krf*rsq31-crf);
477 felec = qq31*(rinv31*rinvsq31-krf2);
478
479 /* Update potential sums from outer loop */
480 velecsum += velec;
481
482 fscal = felec;
483
484 /* Calculate temporary vectorial force */
485 tx = fscal*dx31;
486 ty = fscal*dy31;
487 tz = fscal*dz31;
488
489 /* Update vectorial force */
490 fix3 += tx;
491 fiy3 += ty;
492 fiz3 += tz;
493 f[j_coord_offset+DIM3*1+XX0] -= tx;
494 f[j_coord_offset+DIM3*1+YY1] -= ty;
495 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
496
497 /**************************
498 * CALCULATE INTERACTIONS *
499 **************************/
500
501 /* REACTION-FIELD ELECTROSTATICS */
502 velec = qq32*(rinv32+krf*rsq32-crf);
503 felec = qq32*(rinv32*rinvsq32-krf2);
504
505 /* Update potential sums from outer loop */
506 velecsum += velec;
507
508 fscal = felec;
509
510 /* Calculate temporary vectorial force */
511 tx = fscal*dx32;
512 ty = fscal*dy32;
513 tz = fscal*dz32;
514
515 /* Update vectorial force */
516 fix3 += tx;
517 fiy3 += ty;
518 fiz3 += tz;
519 f[j_coord_offset+DIM3*2+XX0] -= tx;
520 f[j_coord_offset+DIM3*2+YY1] -= ty;
521 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
522
523 /**************************
524 * CALCULATE INTERACTIONS *
525 **************************/
526
527 /* REACTION-FIELD ELECTROSTATICS */
528 velec = qq33*(rinv33+krf*rsq33-crf);
529 felec = qq33*(rinv33*rinvsq33-krf2);
530
531 /* Update potential sums from outer loop */
532 velecsum += velec;
533
534 fscal = felec;
535
536 /* Calculate temporary vectorial force */
537 tx = fscal*dx33;
538 ty = fscal*dy33;
539 tz = fscal*dz33;
540
541 /* Update vectorial force */
542 fix3 += tx;
543 fiy3 += ty;
544 fiz3 += tz;
545 f[j_coord_offset+DIM3*3+XX0] -= tx;
546 f[j_coord_offset+DIM3*3+YY1] -= ty;
547 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
548
549 /* Inner loop uses 311 flops */
550 }
551 /* End of innermost loop */
552
553 tx = ty = tz = 0;
554 f[i_coord_offset+DIM3*0+XX0] += fix0;
555 f[i_coord_offset+DIM3*0+YY1] += fiy0;
556 f[i_coord_offset+DIM3*0+ZZ2] += fiz0;
557 tx += fix0;
558 ty += fiy0;
559 tz += fiz0;
560 f[i_coord_offset+DIM3*1+XX0] += fix1;
561 f[i_coord_offset+DIM3*1+YY1] += fiy1;
562 f[i_coord_offset+DIM3*1+ZZ2] += fiz1;
563 tx += fix1;
564 ty += fiy1;
565 tz += fiz1;
566 f[i_coord_offset+DIM3*2+XX0] += fix2;
567 f[i_coord_offset+DIM3*2+YY1] += fiy2;
568 f[i_coord_offset+DIM3*2+ZZ2] += fiz2;
569 tx += fix2;
570 ty += fiy2;
571 tz += fiz2;
572 f[i_coord_offset+DIM3*3+XX0] += fix3;
573 f[i_coord_offset+DIM3*3+YY1] += fiy3;
574 f[i_coord_offset+DIM3*3+ZZ2] += fiz3;
575 tx += fix3;
576 ty += fiy3;
577 tz += fiz3;
578 fshift[i_shift_offset+XX0] += tx;
579 fshift[i_shift_offset+YY1] += ty;
580 fshift[i_shift_offset+ZZ2] += tz;
581
582 ggid = gid[iidx];
583 /* Update potential energies */
584 kernel_data->energygrp_elec[ggid] += velecsum;
585 kernel_data->energygrp_vdw[ggid] += vvdwsum;
586
587 /* Increment number of inner iterations */
588 inneriter += j_index_end - j_index_start;
589
590 /* Outer loop uses 41 flops */
591 }
592
593 /* Increment number of outer iterations */
594 outeriter += nri;
595
596 /* Update outer/inner flops */
597
598 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_VDW_W4W4_VF,outeriter*41 + inneriter*311)(nrnb)->n[eNR_NBKERNEL_ELEC_VDW_W4W4_VF] += outeriter*41 +
inneriter*311
;
599}
600/*
601 * Gromacs nonbonded kernel: nb_kernel_ElecRF_VdwLJ_GeomW4W4_F_c
602 * Electrostatics interaction: ReactionField
603 * VdW interaction: LennardJones
604 * Geometry: Water4-Water4
605 * Calculate force/pot: Force
606 */
607void
608nb_kernel_ElecRF_VdwLJ_GeomW4W4_F_c
609 (t_nblist * gmx_restrict__restrict nlist,
610 rvec * gmx_restrict__restrict xx,
611 rvec * gmx_restrict__restrict ff,
612 t_forcerec * gmx_restrict__restrict fr,
613 t_mdatoms * gmx_restrict__restrict mdatoms,
614 nb_kernel_data_t gmx_unused__attribute__ ((unused)) * gmx_restrict__restrict kernel_data,
615 t_nrnb * gmx_restrict__restrict nrnb)
616{
617 int i_shift_offset,i_coord_offset,j_coord_offset;
618 int j_index_start,j_index_end;
619 int nri,inr,ggid,iidx,jidx,jnr,outeriter,inneriter;
620 real shX,shY,shZ,tx,ty,tz,fscal,rcutoff,rcutoff2;
621 int *iinr,*jindex,*jjnr,*shiftidx,*gid;
622 real *shiftvec,*fshift,*x,*f;
623 int vdwioffset0;
624 real ix0,iy0,iz0,fix0,fiy0,fiz0,iq0,isai0;
625 int vdwioffset1;
626 real ix1,iy1,iz1,fix1,fiy1,fiz1,iq1,isai1;
627 int vdwioffset2;
628 real ix2,iy2,iz2,fix2,fiy2,fiz2,iq2,isai2;
629 int vdwioffset3;
630 real ix3,iy3,iz3,fix3,fiy3,fiz3,iq3,isai3;
631 int vdwjidx0;
632 real jx0,jy0,jz0,fjx0,fjy0,fjz0,jq0,isaj0;
633 int vdwjidx1;
634 real jx1,jy1,jz1,fjx1,fjy1,fjz1,jq1,isaj1;
635 int vdwjidx2;
636 real jx2,jy2,jz2,fjx2,fjy2,fjz2,jq2,isaj2;
637 int vdwjidx3;
638 real jx3,jy3,jz3,fjx3,fjy3,fjz3,jq3,isaj3;
639 real dx00,dy00,dz00,rsq00,rinv00,rinvsq00,r00,qq00,c6_00,c12_00,cexp1_00,cexp2_00;
640 real dx11,dy11,dz11,rsq11,rinv11,rinvsq11,r11,qq11,c6_11,c12_11,cexp1_11,cexp2_11;
641 real dx12,dy12,dz12,rsq12,rinv12,rinvsq12,r12,qq12,c6_12,c12_12,cexp1_12,cexp2_12;
642 real dx13,dy13,dz13,rsq13,rinv13,rinvsq13,r13,qq13,c6_13,c12_13,cexp1_13,cexp2_13;
643 real dx21,dy21,dz21,rsq21,rinv21,rinvsq21,r21,qq21,c6_21,c12_21,cexp1_21,cexp2_21;
644 real dx22,dy22,dz22,rsq22,rinv22,rinvsq22,r22,qq22,c6_22,c12_22,cexp1_22,cexp2_22;
645 real dx23,dy23,dz23,rsq23,rinv23,rinvsq23,r23,qq23,c6_23,c12_23,cexp1_23,cexp2_23;
646 real dx31,dy31,dz31,rsq31,rinv31,rinvsq31,r31,qq31,c6_31,c12_31,cexp1_31,cexp2_31;
647 real dx32,dy32,dz32,rsq32,rinv32,rinvsq32,r32,qq32,c6_32,c12_32,cexp1_32,cexp2_32;
648 real dx33,dy33,dz33,rsq33,rinv33,rinvsq33,r33,qq33,c6_33,c12_33,cexp1_33,cexp2_33;
649 real velec,felec,velecsum,facel,crf,krf,krf2;
650 real *charge;
651 int nvdwtype;
652 real rinvsix,rvdw,vvdw,vvdw6,vvdw12,fvdw,fvdw6,fvdw12,vvdwsum,br,vvdwexp,sh_vdw_invrcut6;
653 int *vdwtype;
654 real *vdwparam;
655
656 x = xx[0];
657 f = ff[0];
658
659 nri = nlist->nri;
660 iinr = nlist->iinr;
661 jindex = nlist->jindex;
662 jjnr = nlist->jjnr;
663 shiftidx = nlist->shift;
664 gid = nlist->gid;
Value stored to 'gid' is never read
665 shiftvec = fr->shift_vec[0];
666 fshift = fr->fshift[0];
667 facel = fr->epsfac;
668 charge = mdatoms->chargeA;
669 krf = fr->ic->k_rf;
670 krf2 = krf*2.0;
671 crf = fr->ic->c_rf;
672 nvdwtype = fr->ntype;
673 vdwparam = fr->nbfp;
674 vdwtype = mdatoms->typeA;
675
676 /* Setup water-specific parameters */
677 inr = nlist->iinr[0];
678 iq1 = facel*charge[inr+1];
679 iq2 = facel*charge[inr+2];
680 iq3 = facel*charge[inr+3];
681 vdwioffset0 = 2*nvdwtype*vdwtype[inr+0];
682
683 jq1 = charge[inr+1];
684 jq2 = charge[inr+2];
685 jq3 = charge[inr+3];
686 vdwjidx0 = 2*vdwtype[inr+0];
687 c6_00 = vdwparam[vdwioffset0+vdwjidx0];
688 c12_00 = vdwparam[vdwioffset0+vdwjidx0+1];
689 qq11 = iq1*jq1;
690 qq12 = iq1*jq2;
691 qq13 = iq1*jq3;
692 qq21 = iq2*jq1;
693 qq22 = iq2*jq2;
694 qq23 = iq2*jq3;
695 qq31 = iq3*jq1;
696 qq32 = iq3*jq2;
697 qq33 = iq3*jq3;
698
699 outeriter = 0;
700 inneriter = 0;
701
702 /* Start outer loop over neighborlists */
703 for(iidx=0; iidx<nri; iidx++)
704 {
705 /* Load shift vector for this list */
706 i_shift_offset = DIM3*shiftidx[iidx];
707 shX = shiftvec[i_shift_offset+XX0];
708 shY = shiftvec[i_shift_offset+YY1];
709 shZ = shiftvec[i_shift_offset+ZZ2];
710
711 /* Load limits for loop over neighbors */
712 j_index_start = jindex[iidx];
713 j_index_end = jindex[iidx+1];
714
715 /* Get outer coordinate index */
716 inr = iinr[iidx];
717 i_coord_offset = DIM3*inr;
718
719 /* Load i particle coords and add shift vector */
720 ix0 = shX + x[i_coord_offset+DIM3*0+XX0];
721 iy0 = shY + x[i_coord_offset+DIM3*0+YY1];
722 iz0 = shZ + x[i_coord_offset+DIM3*0+ZZ2];
723 ix1 = shX + x[i_coord_offset+DIM3*1+XX0];
724 iy1 = shY + x[i_coord_offset+DIM3*1+YY1];
725 iz1 = shZ + x[i_coord_offset+DIM3*1+ZZ2];
726 ix2 = shX + x[i_coord_offset+DIM3*2+XX0];
727 iy2 = shY + x[i_coord_offset+DIM3*2+YY1];
728 iz2 = shZ + x[i_coord_offset+DIM3*2+ZZ2];
729 ix3 = shX + x[i_coord_offset+DIM3*3+XX0];
730 iy3 = shY + x[i_coord_offset+DIM3*3+YY1];
731 iz3 = shZ + x[i_coord_offset+DIM3*3+ZZ2];
732
733 fix0 = 0.0;
734 fiy0 = 0.0;
735 fiz0 = 0.0;
736 fix1 = 0.0;
737 fiy1 = 0.0;
738 fiz1 = 0.0;
739 fix2 = 0.0;
740 fiy2 = 0.0;
741 fiz2 = 0.0;
742 fix3 = 0.0;
743 fiy3 = 0.0;
744 fiz3 = 0.0;
745
746 /* Start inner kernel loop */
747 for(jidx=j_index_start; jidx<j_index_end; jidx++)
748 {
749 /* Get j neighbor index, and coordinate index */
750 jnr = jjnr[jidx];
751 j_coord_offset = DIM3*jnr;
752
753 /* load j atom coordinates */
754 jx0 = x[j_coord_offset+DIM3*0+XX0];
755 jy0 = x[j_coord_offset+DIM3*0+YY1];
756 jz0 = x[j_coord_offset+DIM3*0+ZZ2];
757 jx1 = x[j_coord_offset+DIM3*1+XX0];
758 jy1 = x[j_coord_offset+DIM3*1+YY1];
759 jz1 = x[j_coord_offset+DIM3*1+ZZ2];
760 jx2 = x[j_coord_offset+DIM3*2+XX0];
761 jy2 = x[j_coord_offset+DIM3*2+YY1];
762 jz2 = x[j_coord_offset+DIM3*2+ZZ2];
763 jx3 = x[j_coord_offset+DIM3*3+XX0];
764 jy3 = x[j_coord_offset+DIM3*3+YY1];
765 jz3 = x[j_coord_offset+DIM3*3+ZZ2];
766
767 /* Calculate displacement vector */
768 dx00 = ix0 - jx0;
769 dy00 = iy0 - jy0;
770 dz00 = iz0 - jz0;
771 dx11 = ix1 - jx1;
772 dy11 = iy1 - jy1;
773 dz11 = iz1 - jz1;
774 dx12 = ix1 - jx2;
775 dy12 = iy1 - jy2;
776 dz12 = iz1 - jz2;
777 dx13 = ix1 - jx3;
778 dy13 = iy1 - jy3;
779 dz13 = iz1 - jz3;
780 dx21 = ix2 - jx1;
781 dy21 = iy2 - jy1;
782 dz21 = iz2 - jz1;
783 dx22 = ix2 - jx2;
784 dy22 = iy2 - jy2;
785 dz22 = iz2 - jz2;
786 dx23 = ix2 - jx3;
787 dy23 = iy2 - jy3;
788 dz23 = iz2 - jz3;
789 dx31 = ix3 - jx1;
790 dy31 = iy3 - jy1;
791 dz31 = iz3 - jz1;
792 dx32 = ix3 - jx2;
793 dy32 = iy3 - jy2;
794 dz32 = iz3 - jz2;
795 dx33 = ix3 - jx3;
796 dy33 = iy3 - jy3;
797 dz33 = iz3 - jz3;
798
799 /* Calculate squared distance and things based on it */
800 rsq00 = dx00*dx00+dy00*dy00+dz00*dz00;
801 rsq11 = dx11*dx11+dy11*dy11+dz11*dz11;
802 rsq12 = dx12*dx12+dy12*dy12+dz12*dz12;
803 rsq13 = dx13*dx13+dy13*dy13+dz13*dz13;
804 rsq21 = dx21*dx21+dy21*dy21+dz21*dz21;
805 rsq22 = dx22*dx22+dy22*dy22+dz22*dz22;
806 rsq23 = dx23*dx23+dy23*dy23+dz23*dz23;
807 rsq31 = dx31*dx31+dy31*dy31+dz31*dz31;
808 rsq32 = dx32*dx32+dy32*dy32+dz32*dz32;
809 rsq33 = dx33*dx33+dy33*dy33+dz33*dz33;
810
811 rinv11 = gmx_invsqrt(rsq11)gmx_software_invsqrt(rsq11);
812 rinv12 = gmx_invsqrt(rsq12)gmx_software_invsqrt(rsq12);
813 rinv13 = gmx_invsqrt(rsq13)gmx_software_invsqrt(rsq13);
814 rinv21 = gmx_invsqrt(rsq21)gmx_software_invsqrt(rsq21);
815 rinv22 = gmx_invsqrt(rsq22)gmx_software_invsqrt(rsq22);
816 rinv23 = gmx_invsqrt(rsq23)gmx_software_invsqrt(rsq23);
817 rinv31 = gmx_invsqrt(rsq31)gmx_software_invsqrt(rsq31);
818 rinv32 = gmx_invsqrt(rsq32)gmx_software_invsqrt(rsq32);
819 rinv33 = gmx_invsqrt(rsq33)gmx_software_invsqrt(rsq33);
820
821 rinvsq00 = 1.0/rsq00;
822 rinvsq11 = rinv11*rinv11;
823 rinvsq12 = rinv12*rinv12;
824 rinvsq13 = rinv13*rinv13;
825 rinvsq21 = rinv21*rinv21;
826 rinvsq22 = rinv22*rinv22;
827 rinvsq23 = rinv23*rinv23;
828 rinvsq31 = rinv31*rinv31;
829 rinvsq32 = rinv32*rinv32;
830 rinvsq33 = rinv33*rinv33;
831
832 /**************************
833 * CALCULATE INTERACTIONS *
834 **************************/
835
836 /* LENNARD-JONES DISPERSION/REPULSION */
837
838 rinvsix = rinvsq00*rinvsq00*rinvsq00;
839 fvdw = (c12_00*rinvsix-c6_00)*rinvsix*rinvsq00;
840
841 fscal = fvdw;
842
843 /* Calculate temporary vectorial force */
844 tx = fscal*dx00;
845 ty = fscal*dy00;
846 tz = fscal*dz00;
847
848 /* Update vectorial force */
849 fix0 += tx;
850 fiy0 += ty;
851 fiz0 += tz;
852 f[j_coord_offset+DIM3*0+XX0] -= tx;
853 f[j_coord_offset+DIM3*0+YY1] -= ty;
854 f[j_coord_offset+DIM3*0+ZZ2] -= tz;
855
856 /**************************
857 * CALCULATE INTERACTIONS *
858 **************************/
859
860 /* REACTION-FIELD ELECTROSTATICS */
861 felec = qq11*(rinv11*rinvsq11-krf2);
862
863 fscal = felec;
864
865 /* Calculate temporary vectorial force */
866 tx = fscal*dx11;
867 ty = fscal*dy11;
868 tz = fscal*dz11;
869
870 /* Update vectorial force */
871 fix1 += tx;
872 fiy1 += ty;
873 fiz1 += tz;
874 f[j_coord_offset+DIM3*1+XX0] -= tx;
875 f[j_coord_offset+DIM3*1+YY1] -= ty;
876 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
877
878 /**************************
879 * CALCULATE INTERACTIONS *
880 **************************/
881
882 /* REACTION-FIELD ELECTROSTATICS */
883 felec = qq12*(rinv12*rinvsq12-krf2);
884
885 fscal = felec;
886
887 /* Calculate temporary vectorial force */
888 tx = fscal*dx12;
889 ty = fscal*dy12;
890 tz = fscal*dz12;
891
892 /* Update vectorial force */
893 fix1 += tx;
894 fiy1 += ty;
895 fiz1 += tz;
896 f[j_coord_offset+DIM3*2+XX0] -= tx;
897 f[j_coord_offset+DIM3*2+YY1] -= ty;
898 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
899
900 /**************************
901 * CALCULATE INTERACTIONS *
902 **************************/
903
904 /* REACTION-FIELD ELECTROSTATICS */
905 felec = qq13*(rinv13*rinvsq13-krf2);
906
907 fscal = felec;
908
909 /* Calculate temporary vectorial force */
910 tx = fscal*dx13;
911 ty = fscal*dy13;
912 tz = fscal*dz13;
913
914 /* Update vectorial force */
915 fix1 += tx;
916 fiy1 += ty;
917 fiz1 += tz;
918 f[j_coord_offset+DIM3*3+XX0] -= tx;
919 f[j_coord_offset+DIM3*3+YY1] -= ty;
920 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
921
922 /**************************
923 * CALCULATE INTERACTIONS *
924 **************************/
925
926 /* REACTION-FIELD ELECTROSTATICS */
927 felec = qq21*(rinv21*rinvsq21-krf2);
928
929 fscal = felec;
930
931 /* Calculate temporary vectorial force */
932 tx = fscal*dx21;
933 ty = fscal*dy21;
934 tz = fscal*dz21;
935
936 /* Update vectorial force */
937 fix2 += tx;
938 fiy2 += ty;
939 fiz2 += tz;
940 f[j_coord_offset+DIM3*1+XX0] -= tx;
941 f[j_coord_offset+DIM3*1+YY1] -= ty;
942 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
943
944 /**************************
945 * CALCULATE INTERACTIONS *
946 **************************/
947
948 /* REACTION-FIELD ELECTROSTATICS */
949 felec = qq22*(rinv22*rinvsq22-krf2);
950
951 fscal = felec;
952
953 /* Calculate temporary vectorial force */
954 tx = fscal*dx22;
955 ty = fscal*dy22;
956 tz = fscal*dz22;
957
958 /* Update vectorial force */
959 fix2 += tx;
960 fiy2 += ty;
961 fiz2 += tz;
962 f[j_coord_offset+DIM3*2+XX0] -= tx;
963 f[j_coord_offset+DIM3*2+YY1] -= ty;
964 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
965
966 /**************************
967 * CALCULATE INTERACTIONS *
968 **************************/
969
970 /* REACTION-FIELD ELECTROSTATICS */
971 felec = qq23*(rinv23*rinvsq23-krf2);
972
973 fscal = felec;
974
975 /* Calculate temporary vectorial force */
976 tx = fscal*dx23;
977 ty = fscal*dy23;
978 tz = fscal*dz23;
979
980 /* Update vectorial force */
981 fix2 += tx;
982 fiy2 += ty;
983 fiz2 += tz;
984 f[j_coord_offset+DIM3*3+XX0] -= tx;
985 f[j_coord_offset+DIM3*3+YY1] -= ty;
986 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
987
988 /**************************
989 * CALCULATE INTERACTIONS *
990 **************************/
991
992 /* REACTION-FIELD ELECTROSTATICS */
993 felec = qq31*(rinv31*rinvsq31-krf2);
994
995 fscal = felec;
996
997 /* Calculate temporary vectorial force */
998 tx = fscal*dx31;
999 ty = fscal*dy31;
1000 tz = fscal*dz31;
1001
1002 /* Update vectorial force */
1003 fix3 += tx;
1004 fiy3 += ty;
1005 fiz3 += tz;
1006 f[j_coord_offset+DIM3*1+XX0] -= tx;
1007 f[j_coord_offset+DIM3*1+YY1] -= ty;
1008 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
1009
1010 /**************************
1011 * CALCULATE INTERACTIONS *
1012 **************************/
1013
1014 /* REACTION-FIELD ELECTROSTATICS */
1015 felec = qq32*(rinv32*rinvsq32-krf2);
1016
1017 fscal = felec;
1018
1019 /* Calculate temporary vectorial force */
1020 tx = fscal*dx32;
1021 ty = fscal*dy32;
1022 tz = fscal*dz32;
1023
1024 /* Update vectorial force */
1025 fix3 += tx;
1026 fiy3 += ty;
1027 fiz3 += tz;
1028 f[j_coord_offset+DIM3*2+XX0] -= tx;
1029 f[j_coord_offset+DIM3*2+YY1] -= ty;
1030 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
1031
1032 /**************************
1033 * CALCULATE INTERACTIONS *
1034 **************************/
1035
1036 /* REACTION-FIELD ELECTROSTATICS */
1037 felec = qq33*(rinv33*rinvsq33-krf2);
1038
1039 fscal = felec;
1040
1041 /* Calculate temporary vectorial force */
1042 tx = fscal*dx33;
1043 ty = fscal*dy33;
1044 tz = fscal*dz33;
1045
1046 /* Update vectorial force */
1047 fix3 += tx;
1048 fiy3 += ty;
1049 fiz3 += tz;
1050 f[j_coord_offset+DIM3*3+XX0] -= tx;
1051 f[j_coord_offset+DIM3*3+YY1] -= ty;
1052 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
1053
1054 /* Inner loop uses 261 flops */
1055 }
1056 /* End of innermost loop */
1057
1058 tx = ty = tz = 0;
1059 f[i_coord_offset+DIM3*0+XX0] += fix0;
1060 f[i_coord_offset+DIM3*0+YY1] += fiy0;
1061 f[i_coord_offset+DIM3*0+ZZ2] += fiz0;
1062 tx += fix0;
1063 ty += fiy0;
1064 tz += fiz0;
1065 f[i_coord_offset+DIM3*1+XX0] += fix1;
1066 f[i_coord_offset+DIM3*1+YY1] += fiy1;
1067 f[i_coord_offset+DIM3*1+ZZ2] += fiz1;
1068 tx += fix1;
1069 ty += fiy1;
1070 tz += fiz1;
1071 f[i_coord_offset+DIM3*2+XX0] += fix2;
1072 f[i_coord_offset+DIM3*2+YY1] += fiy2;
1073 f[i_coord_offset+DIM3*2+ZZ2] += fiz2;
1074 tx += fix2;
1075 ty += fiy2;
1076 tz += fiz2;
1077 f[i_coord_offset+DIM3*3+XX0] += fix3;
1078 f[i_coord_offset+DIM3*3+YY1] += fiy3;
1079 f[i_coord_offset+DIM3*3+ZZ2] += fiz3;
1080 tx += fix3;
1081 ty += fiy3;
1082 tz += fiz3;
1083 fshift[i_shift_offset+XX0] += tx;
1084 fshift[i_shift_offset+YY1] += ty;
1085 fshift[i_shift_offset+ZZ2] += tz;
1086
1087 /* Increment number of inner iterations */
1088 inneriter += j_index_end - j_index_start;
1089
1090 /* Outer loop uses 39 flops */
1091 }
1092
1093 /* Increment number of outer iterations */
1094 outeriter += nri;
1095
1096 /* Update outer/inner flops */
1097
1098 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_VDW_W4W4_F,outeriter*39 + inneriter*261)(nrnb)->n[eNR_NBKERNEL_ELEC_VDW_W4W4_F] += outeriter*39 + inneriter
*261
;
1099}