Bug Summary

File:gromacs/gmxlib/nonbonded/nb_kernel_c/nb_kernel_ElecRF_VdwNone_GeomW4W4_c.c
Location:line 594, column 5
Description:Value stored to 'crf' 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,
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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_VdwNone_GeomW4W4_VF_c
51 * Electrostatics interaction: ReactionField
52 * VdW interaction: None
53 * Geometry: Water4-Water4
54 * Calculate force/pot: PotentialAndForce
55 */
56void
57nb_kernel_ElecRF_VdwNone_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 vdwioffset1;
73 real ix1,iy1,iz1,fix1,fiy1,fiz1,iq1,isai1;
74 int vdwioffset2;
75 real ix2,iy2,iz2,fix2,fiy2,fiz2,iq2,isai2;
76 int vdwioffset3;
77 real ix3,iy3,iz3,fix3,fiy3,fiz3,iq3,isai3;
78 int vdwjidx1;
79 real jx1,jy1,jz1,fjx1,fjy1,fjz1,jq1,isaj1;
80 int vdwjidx2;
81 real jx2,jy2,jz2,fjx2,fjy2,fjz2,jq2,isaj2;
82 int vdwjidx3;
83 real jx3,jy3,jz3,fjx3,fjy3,fjz3,jq3,isaj3;
84 real dx11,dy11,dz11,rsq11,rinv11,rinvsq11,r11,qq11,c6_11,c12_11,cexp1_11,cexp2_11;
85 real dx12,dy12,dz12,rsq12,rinv12,rinvsq12,r12,qq12,c6_12,c12_12,cexp1_12,cexp2_12;
86 real dx13,dy13,dz13,rsq13,rinv13,rinvsq13,r13,qq13,c6_13,c12_13,cexp1_13,cexp2_13;
87 real dx21,dy21,dz21,rsq21,rinv21,rinvsq21,r21,qq21,c6_21,c12_21,cexp1_21,cexp2_21;
88 real dx22,dy22,dz22,rsq22,rinv22,rinvsq22,r22,qq22,c6_22,c12_22,cexp1_22,cexp2_22;
89 real dx23,dy23,dz23,rsq23,rinv23,rinvsq23,r23,qq23,c6_23,c12_23,cexp1_23,cexp2_23;
90 real dx31,dy31,dz31,rsq31,rinv31,rinvsq31,r31,qq31,c6_31,c12_31,cexp1_31,cexp2_31;
91 real dx32,dy32,dz32,rsq32,rinv32,rinvsq32,r32,qq32,c6_32,c12_32,cexp1_32,cexp2_32;
92 real dx33,dy33,dz33,rsq33,rinv33,rinvsq33,r33,qq33,c6_33,c12_33,cexp1_33,cexp2_33;
93 real velec,felec,velecsum,facel,crf,krf,krf2;
94 real *charge;
95
96 x = xx[0];
97 f = ff[0];
98
99 nri = nlist->nri;
100 iinr = nlist->iinr;
101 jindex = nlist->jindex;
102 jjnr = nlist->jjnr;
103 shiftidx = nlist->shift;
104 gid = nlist->gid;
105 shiftvec = fr->shift_vec[0];
106 fshift = fr->fshift[0];
107 facel = fr->epsfac;
108 charge = mdatoms->chargeA;
109 krf = fr->ic->k_rf;
110 krf2 = krf*2.0;
111 crf = fr->ic->c_rf;
112
113 /* Setup water-specific parameters */
114 inr = nlist->iinr[0];
115 iq1 = facel*charge[inr+1];
116 iq2 = facel*charge[inr+2];
117 iq3 = facel*charge[inr+3];
118
119 jq1 = charge[inr+1];
120 jq2 = charge[inr+2];
121 jq3 = charge[inr+3];
122 qq11 = iq1*jq1;
123 qq12 = iq1*jq2;
124 qq13 = iq1*jq3;
125 qq21 = iq2*jq1;
126 qq22 = iq2*jq2;
127 qq23 = iq2*jq3;
128 qq31 = iq3*jq1;
129 qq32 = iq3*jq2;
130 qq33 = iq3*jq3;
131
132 outeriter = 0;
133 inneriter = 0;
134
135 /* Start outer loop over neighborlists */
136 for(iidx=0; iidx<nri; iidx++)
137 {
138 /* Load shift vector for this list */
139 i_shift_offset = DIM3*shiftidx[iidx];
140 shX = shiftvec[i_shift_offset+XX0];
141 shY = shiftvec[i_shift_offset+YY1];
142 shZ = shiftvec[i_shift_offset+ZZ2];
143
144 /* Load limits for loop over neighbors */
145 j_index_start = jindex[iidx];
146 j_index_end = jindex[iidx+1];
147
148 /* Get outer coordinate index */
149 inr = iinr[iidx];
150 i_coord_offset = DIM3*inr;
151
152 /* Load i particle coords and add shift vector */
153 ix1 = shX + x[i_coord_offset+DIM3*1+XX0];
154 iy1 = shY + x[i_coord_offset+DIM3*1+YY1];
155 iz1 = shZ + x[i_coord_offset+DIM3*1+ZZ2];
156 ix2 = shX + x[i_coord_offset+DIM3*2+XX0];
157 iy2 = shY + x[i_coord_offset+DIM3*2+YY1];
158 iz2 = shZ + x[i_coord_offset+DIM3*2+ZZ2];
159 ix3 = shX + x[i_coord_offset+DIM3*3+XX0];
160 iy3 = shY + x[i_coord_offset+DIM3*3+YY1];
161 iz3 = shZ + x[i_coord_offset+DIM3*3+ZZ2];
162
163 fix1 = 0.0;
164 fiy1 = 0.0;
165 fiz1 = 0.0;
166 fix2 = 0.0;
167 fiy2 = 0.0;
168 fiz2 = 0.0;
169 fix3 = 0.0;
170 fiy3 = 0.0;
171 fiz3 = 0.0;
172
173 /* Reset potential sums */
174 velecsum = 0.0;
175
176 /* Start inner kernel loop */
177 for(jidx=j_index_start; jidx<j_index_end; jidx++)
178 {
179 /* Get j neighbor index, and coordinate index */
180 jnr = jjnr[jidx];
181 j_coord_offset = DIM3*jnr;
182
183 /* load j atom coordinates */
184 jx1 = x[j_coord_offset+DIM3*1+XX0];
185 jy1 = x[j_coord_offset+DIM3*1+YY1];
186 jz1 = x[j_coord_offset+DIM3*1+ZZ2];
187 jx2 = x[j_coord_offset+DIM3*2+XX0];
188 jy2 = x[j_coord_offset+DIM3*2+YY1];
189 jz2 = x[j_coord_offset+DIM3*2+ZZ2];
190 jx3 = x[j_coord_offset+DIM3*3+XX0];
191 jy3 = x[j_coord_offset+DIM3*3+YY1];
192 jz3 = x[j_coord_offset+DIM3*3+ZZ2];
193
194 /* Calculate displacement vector */
195 dx11 = ix1 - jx1;
196 dy11 = iy1 - jy1;
197 dz11 = iz1 - jz1;
198 dx12 = ix1 - jx2;
199 dy12 = iy1 - jy2;
200 dz12 = iz1 - jz2;
201 dx13 = ix1 - jx3;
202 dy13 = iy1 - jy3;
203 dz13 = iz1 - jz3;
204 dx21 = ix2 - jx1;
205 dy21 = iy2 - jy1;
206 dz21 = iz2 - jz1;
207 dx22 = ix2 - jx2;
208 dy22 = iy2 - jy2;
209 dz22 = iz2 - jz2;
210 dx23 = ix2 - jx3;
211 dy23 = iy2 - jy3;
212 dz23 = iz2 - jz3;
213 dx31 = ix3 - jx1;
214 dy31 = iy3 - jy1;
215 dz31 = iz3 - jz1;
216 dx32 = ix3 - jx2;
217 dy32 = iy3 - jy2;
218 dz32 = iz3 - jz2;
219 dx33 = ix3 - jx3;
220 dy33 = iy3 - jy3;
221 dz33 = iz3 - jz3;
222
223 /* Calculate squared distance and things based on it */
224 rsq11 = dx11*dx11+dy11*dy11+dz11*dz11;
225 rsq12 = dx12*dx12+dy12*dy12+dz12*dz12;
226 rsq13 = dx13*dx13+dy13*dy13+dz13*dz13;
227 rsq21 = dx21*dx21+dy21*dy21+dz21*dz21;
228 rsq22 = dx22*dx22+dy22*dy22+dz22*dz22;
229 rsq23 = dx23*dx23+dy23*dy23+dz23*dz23;
230 rsq31 = dx31*dx31+dy31*dy31+dz31*dz31;
231 rsq32 = dx32*dx32+dy32*dy32+dz32*dz32;
232 rsq33 = dx33*dx33+dy33*dy33+dz33*dz33;
233
234 rinv11 = gmx_invsqrt(rsq11)gmx_software_invsqrt(rsq11);
235 rinv12 = gmx_invsqrt(rsq12)gmx_software_invsqrt(rsq12);
236 rinv13 = gmx_invsqrt(rsq13)gmx_software_invsqrt(rsq13);
237 rinv21 = gmx_invsqrt(rsq21)gmx_software_invsqrt(rsq21);
238 rinv22 = gmx_invsqrt(rsq22)gmx_software_invsqrt(rsq22);
239 rinv23 = gmx_invsqrt(rsq23)gmx_software_invsqrt(rsq23);
240 rinv31 = gmx_invsqrt(rsq31)gmx_software_invsqrt(rsq31);
241 rinv32 = gmx_invsqrt(rsq32)gmx_software_invsqrt(rsq32);
242 rinv33 = gmx_invsqrt(rsq33)gmx_software_invsqrt(rsq33);
243
244 rinvsq11 = rinv11*rinv11;
245 rinvsq12 = rinv12*rinv12;
246 rinvsq13 = rinv13*rinv13;
247 rinvsq21 = rinv21*rinv21;
248 rinvsq22 = rinv22*rinv22;
249 rinvsq23 = rinv23*rinv23;
250 rinvsq31 = rinv31*rinv31;
251 rinvsq32 = rinv32*rinv32;
252 rinvsq33 = rinv33*rinv33;
253
254 /**************************
255 * CALCULATE INTERACTIONS *
256 **************************/
257
258 /* REACTION-FIELD ELECTROSTATICS */
259 velec = qq11*(rinv11+krf*rsq11-crf);
260 felec = qq11*(rinv11*rinvsq11-krf2);
261
262 /* Update potential sums from outer loop */
263 velecsum += velec;
264
265 fscal = felec;
266
267 /* Calculate temporary vectorial force */
268 tx = fscal*dx11;
269 ty = fscal*dy11;
270 tz = fscal*dz11;
271
272 /* Update vectorial force */
273 fix1 += tx;
274 fiy1 += ty;
275 fiz1 += tz;
276 f[j_coord_offset+DIM3*1+XX0] -= tx;
277 f[j_coord_offset+DIM3*1+YY1] -= ty;
278 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
279
280 /**************************
281 * CALCULATE INTERACTIONS *
282 **************************/
283
284 /* REACTION-FIELD ELECTROSTATICS */
285 velec = qq12*(rinv12+krf*rsq12-crf);
286 felec = qq12*(rinv12*rinvsq12-krf2);
287
288 /* Update potential sums from outer loop */
289 velecsum += velec;
290
291 fscal = felec;
292
293 /* Calculate temporary vectorial force */
294 tx = fscal*dx12;
295 ty = fscal*dy12;
296 tz = fscal*dz12;
297
298 /* Update vectorial force */
299 fix1 += tx;
300 fiy1 += ty;
301 fiz1 += tz;
302 f[j_coord_offset+DIM3*2+XX0] -= tx;
303 f[j_coord_offset+DIM3*2+YY1] -= ty;
304 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
305
306 /**************************
307 * CALCULATE INTERACTIONS *
308 **************************/
309
310 /* REACTION-FIELD ELECTROSTATICS */
311 velec = qq13*(rinv13+krf*rsq13-crf);
312 felec = qq13*(rinv13*rinvsq13-krf2);
313
314 /* Update potential sums from outer loop */
315 velecsum += velec;
316
317 fscal = felec;
318
319 /* Calculate temporary vectorial force */
320 tx = fscal*dx13;
321 ty = fscal*dy13;
322 tz = fscal*dz13;
323
324 /* Update vectorial force */
325 fix1 += tx;
326 fiy1 += ty;
327 fiz1 += tz;
328 f[j_coord_offset+DIM3*3+XX0] -= tx;
329 f[j_coord_offset+DIM3*3+YY1] -= ty;
330 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
331
332 /**************************
333 * CALCULATE INTERACTIONS *
334 **************************/
335
336 /* REACTION-FIELD ELECTROSTATICS */
337 velec = qq21*(rinv21+krf*rsq21-crf);
338 felec = qq21*(rinv21*rinvsq21-krf2);
339
340 /* Update potential sums from outer loop */
341 velecsum += velec;
342
343 fscal = felec;
344
345 /* Calculate temporary vectorial force */
346 tx = fscal*dx21;
347 ty = fscal*dy21;
348 tz = fscal*dz21;
349
350 /* Update vectorial force */
351 fix2 += tx;
352 fiy2 += ty;
353 fiz2 += tz;
354 f[j_coord_offset+DIM3*1+XX0] -= tx;
355 f[j_coord_offset+DIM3*1+YY1] -= ty;
356 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
357
358 /**************************
359 * CALCULATE INTERACTIONS *
360 **************************/
361
362 /* REACTION-FIELD ELECTROSTATICS */
363 velec = qq22*(rinv22+krf*rsq22-crf);
364 felec = qq22*(rinv22*rinvsq22-krf2);
365
366 /* Update potential sums from outer loop */
367 velecsum += velec;
368
369 fscal = felec;
370
371 /* Calculate temporary vectorial force */
372 tx = fscal*dx22;
373 ty = fscal*dy22;
374 tz = fscal*dz22;
375
376 /* Update vectorial force */
377 fix2 += tx;
378 fiy2 += ty;
379 fiz2 += tz;
380 f[j_coord_offset+DIM3*2+XX0] -= tx;
381 f[j_coord_offset+DIM3*2+YY1] -= ty;
382 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
383
384 /**************************
385 * CALCULATE INTERACTIONS *
386 **************************/
387
388 /* REACTION-FIELD ELECTROSTATICS */
389 velec = qq23*(rinv23+krf*rsq23-crf);
390 felec = qq23*(rinv23*rinvsq23-krf2);
391
392 /* Update potential sums from outer loop */
393 velecsum += velec;
394
395 fscal = felec;
396
397 /* Calculate temporary vectorial force */
398 tx = fscal*dx23;
399 ty = fscal*dy23;
400 tz = fscal*dz23;
401
402 /* Update vectorial force */
403 fix2 += tx;
404 fiy2 += ty;
405 fiz2 += tz;
406 f[j_coord_offset+DIM3*3+XX0] -= tx;
407 f[j_coord_offset+DIM3*3+YY1] -= ty;
408 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
409
410 /**************************
411 * CALCULATE INTERACTIONS *
412 **************************/
413
414 /* REACTION-FIELD ELECTROSTATICS */
415 velec = qq31*(rinv31+krf*rsq31-crf);
416 felec = qq31*(rinv31*rinvsq31-krf2);
417
418 /* Update potential sums from outer loop */
419 velecsum += velec;
420
421 fscal = felec;
422
423 /* Calculate temporary vectorial force */
424 tx = fscal*dx31;
425 ty = fscal*dy31;
426 tz = fscal*dz31;
427
428 /* Update vectorial force */
429 fix3 += tx;
430 fiy3 += ty;
431 fiz3 += tz;
432 f[j_coord_offset+DIM3*1+XX0] -= tx;
433 f[j_coord_offset+DIM3*1+YY1] -= ty;
434 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
435
436 /**************************
437 * CALCULATE INTERACTIONS *
438 **************************/
439
440 /* REACTION-FIELD ELECTROSTATICS */
441 velec = qq32*(rinv32+krf*rsq32-crf);
442 felec = qq32*(rinv32*rinvsq32-krf2);
443
444 /* Update potential sums from outer loop */
445 velecsum += velec;
446
447 fscal = felec;
448
449 /* Calculate temporary vectorial force */
450 tx = fscal*dx32;
451 ty = fscal*dy32;
452 tz = fscal*dz32;
453
454 /* Update vectorial force */
455 fix3 += tx;
456 fiy3 += ty;
457 fiz3 += tz;
458 f[j_coord_offset+DIM3*2+XX0] -= tx;
459 f[j_coord_offset+DIM3*2+YY1] -= ty;
460 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
461
462 /**************************
463 * CALCULATE INTERACTIONS *
464 **************************/
465
466 /* REACTION-FIELD ELECTROSTATICS */
467 velec = qq33*(rinv33+krf*rsq33-crf);
468 felec = qq33*(rinv33*rinvsq33-krf2);
469
470 /* Update potential sums from outer loop */
471 velecsum += velec;
472
473 fscal = felec;
474
475 /* Calculate temporary vectorial force */
476 tx = fscal*dx33;
477 ty = fscal*dy33;
478 tz = fscal*dz33;
479
480 /* Update vectorial force */
481 fix3 += tx;
482 fiy3 += ty;
483 fiz3 += tz;
484 f[j_coord_offset+DIM3*3+XX0] -= tx;
485 f[j_coord_offset+DIM3*3+YY1] -= ty;
486 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
487
488 /* Inner loop uses 279 flops */
489 }
490 /* End of innermost loop */
491
492 tx = ty = tz = 0;
493 f[i_coord_offset+DIM3*1+XX0] += fix1;
494 f[i_coord_offset+DIM3*1+YY1] += fiy1;
495 f[i_coord_offset+DIM3*1+ZZ2] += fiz1;
496 tx += fix1;
497 ty += fiy1;
498 tz += fiz1;
499 f[i_coord_offset+DIM3*2+XX0] += fix2;
500 f[i_coord_offset+DIM3*2+YY1] += fiy2;
501 f[i_coord_offset+DIM3*2+ZZ2] += fiz2;
502 tx += fix2;
503 ty += fiy2;
504 tz += fiz2;
505 f[i_coord_offset+DIM3*3+XX0] += fix3;
506 f[i_coord_offset+DIM3*3+YY1] += fiy3;
507 f[i_coord_offset+DIM3*3+ZZ2] += fiz3;
508 tx += fix3;
509 ty += fiy3;
510 tz += fiz3;
511 fshift[i_shift_offset+XX0] += tx;
512 fshift[i_shift_offset+YY1] += ty;
513 fshift[i_shift_offset+ZZ2] += tz;
514
515 ggid = gid[iidx];
516 /* Update potential energies */
517 kernel_data->energygrp_elec[ggid] += velecsum;
518
519 /* Increment number of inner iterations */
520 inneriter += j_index_end - j_index_start;
521
522 /* Outer loop uses 31 flops */
523 }
524
525 /* Increment number of outer iterations */
526 outeriter += nri;
527
528 /* Update outer/inner flops */
529
530 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_W4W4_VF,outeriter*31 + inneriter*279)(nrnb)->n[eNR_NBKERNEL_ELEC_W4W4_VF] += outeriter*31 + inneriter
*279
;
531}
532/*
533 * Gromacs nonbonded kernel: nb_kernel_ElecRF_VdwNone_GeomW4W4_F_c
534 * Electrostatics interaction: ReactionField
535 * VdW interaction: None
536 * Geometry: Water4-Water4
537 * Calculate force/pot: Force
538 */
539void
540nb_kernel_ElecRF_VdwNone_GeomW4W4_F_c
541 (t_nblist * gmx_restrict__restrict nlist,
542 rvec * gmx_restrict__restrict xx,
543 rvec * gmx_restrict__restrict ff,
544 t_forcerec * gmx_restrict__restrict fr,
545 t_mdatoms * gmx_restrict__restrict mdatoms,
546 nb_kernel_data_t gmx_unused__attribute__ ((unused)) * gmx_restrict__restrict kernel_data,
547 t_nrnb * gmx_restrict__restrict nrnb)
548{
549 int i_shift_offset,i_coord_offset,j_coord_offset;
550 int j_index_start,j_index_end;
551 int nri,inr,ggid,iidx,jidx,jnr,outeriter,inneriter;
552 real shX,shY,shZ,tx,ty,tz,fscal,rcutoff,rcutoff2;
553 int *iinr,*jindex,*jjnr,*shiftidx,*gid;
554 real *shiftvec,*fshift,*x,*f;
555 int vdwioffset1;
556 real ix1,iy1,iz1,fix1,fiy1,fiz1,iq1,isai1;
557 int vdwioffset2;
558 real ix2,iy2,iz2,fix2,fiy2,fiz2,iq2,isai2;
559 int vdwioffset3;
560 real ix3,iy3,iz3,fix3,fiy3,fiz3,iq3,isai3;
561 int vdwjidx1;
562 real jx1,jy1,jz1,fjx1,fjy1,fjz1,jq1,isaj1;
563 int vdwjidx2;
564 real jx2,jy2,jz2,fjx2,fjy2,fjz2,jq2,isaj2;
565 int vdwjidx3;
566 real jx3,jy3,jz3,fjx3,fjy3,fjz3,jq3,isaj3;
567 real dx11,dy11,dz11,rsq11,rinv11,rinvsq11,r11,qq11,c6_11,c12_11,cexp1_11,cexp2_11;
568 real dx12,dy12,dz12,rsq12,rinv12,rinvsq12,r12,qq12,c6_12,c12_12,cexp1_12,cexp2_12;
569 real dx13,dy13,dz13,rsq13,rinv13,rinvsq13,r13,qq13,c6_13,c12_13,cexp1_13,cexp2_13;
570 real dx21,dy21,dz21,rsq21,rinv21,rinvsq21,r21,qq21,c6_21,c12_21,cexp1_21,cexp2_21;
571 real dx22,dy22,dz22,rsq22,rinv22,rinvsq22,r22,qq22,c6_22,c12_22,cexp1_22,cexp2_22;
572 real dx23,dy23,dz23,rsq23,rinv23,rinvsq23,r23,qq23,c6_23,c12_23,cexp1_23,cexp2_23;
573 real dx31,dy31,dz31,rsq31,rinv31,rinvsq31,r31,qq31,c6_31,c12_31,cexp1_31,cexp2_31;
574 real dx32,dy32,dz32,rsq32,rinv32,rinvsq32,r32,qq32,c6_32,c12_32,cexp1_32,cexp2_32;
575 real dx33,dy33,dz33,rsq33,rinv33,rinvsq33,r33,qq33,c6_33,c12_33,cexp1_33,cexp2_33;
576 real velec,felec,velecsum,facel,crf,krf,krf2;
577 real *charge;
578
579 x = xx[0];
580 f = ff[0];
581
582 nri = nlist->nri;
583 iinr = nlist->iinr;
584 jindex = nlist->jindex;
585 jjnr = nlist->jjnr;
586 shiftidx = nlist->shift;
587 gid = nlist->gid;
588 shiftvec = fr->shift_vec[0];
589 fshift = fr->fshift[0];
590 facel = fr->epsfac;
591 charge = mdatoms->chargeA;
592 krf = fr->ic->k_rf;
593 krf2 = krf*2.0;
594 crf = fr->ic->c_rf;
Value stored to 'crf' is never read
595
596 /* Setup water-specific parameters */
597 inr = nlist->iinr[0];
598 iq1 = facel*charge[inr+1];
599 iq2 = facel*charge[inr+2];
600 iq3 = facel*charge[inr+3];
601
602 jq1 = charge[inr+1];
603 jq2 = charge[inr+2];
604 jq3 = charge[inr+3];
605 qq11 = iq1*jq1;
606 qq12 = iq1*jq2;
607 qq13 = iq1*jq3;
608 qq21 = iq2*jq1;
609 qq22 = iq2*jq2;
610 qq23 = iq2*jq3;
611 qq31 = iq3*jq1;
612 qq32 = iq3*jq2;
613 qq33 = iq3*jq3;
614
615 outeriter = 0;
616 inneriter = 0;
617
618 /* Start outer loop over neighborlists */
619 for(iidx=0; iidx<nri; iidx++)
620 {
621 /* Load shift vector for this list */
622 i_shift_offset = DIM3*shiftidx[iidx];
623 shX = shiftvec[i_shift_offset+XX0];
624 shY = shiftvec[i_shift_offset+YY1];
625 shZ = shiftvec[i_shift_offset+ZZ2];
626
627 /* Load limits for loop over neighbors */
628 j_index_start = jindex[iidx];
629 j_index_end = jindex[iidx+1];
630
631 /* Get outer coordinate index */
632 inr = iinr[iidx];
633 i_coord_offset = DIM3*inr;
634
635 /* Load i particle coords and add shift vector */
636 ix1 = shX + x[i_coord_offset+DIM3*1+XX0];
637 iy1 = shY + x[i_coord_offset+DIM3*1+YY1];
638 iz1 = shZ + x[i_coord_offset+DIM3*1+ZZ2];
639 ix2 = shX + x[i_coord_offset+DIM3*2+XX0];
640 iy2 = shY + x[i_coord_offset+DIM3*2+YY1];
641 iz2 = shZ + x[i_coord_offset+DIM3*2+ZZ2];
642 ix3 = shX + x[i_coord_offset+DIM3*3+XX0];
643 iy3 = shY + x[i_coord_offset+DIM3*3+YY1];
644 iz3 = shZ + x[i_coord_offset+DIM3*3+ZZ2];
645
646 fix1 = 0.0;
647 fiy1 = 0.0;
648 fiz1 = 0.0;
649 fix2 = 0.0;
650 fiy2 = 0.0;
651 fiz2 = 0.0;
652 fix3 = 0.0;
653 fiy3 = 0.0;
654 fiz3 = 0.0;
655
656 /* Start inner kernel loop */
657 for(jidx=j_index_start; jidx<j_index_end; jidx++)
658 {
659 /* Get j neighbor index, and coordinate index */
660 jnr = jjnr[jidx];
661 j_coord_offset = DIM3*jnr;
662
663 /* load j atom coordinates */
664 jx1 = x[j_coord_offset+DIM3*1+XX0];
665 jy1 = x[j_coord_offset+DIM3*1+YY1];
666 jz1 = x[j_coord_offset+DIM3*1+ZZ2];
667 jx2 = x[j_coord_offset+DIM3*2+XX0];
668 jy2 = x[j_coord_offset+DIM3*2+YY1];
669 jz2 = x[j_coord_offset+DIM3*2+ZZ2];
670 jx3 = x[j_coord_offset+DIM3*3+XX0];
671 jy3 = x[j_coord_offset+DIM3*3+YY1];
672 jz3 = x[j_coord_offset+DIM3*3+ZZ2];
673
674 /* Calculate displacement vector */
675 dx11 = ix1 - jx1;
676 dy11 = iy1 - jy1;
677 dz11 = iz1 - jz1;
678 dx12 = ix1 - jx2;
679 dy12 = iy1 - jy2;
680 dz12 = iz1 - jz2;
681 dx13 = ix1 - jx3;
682 dy13 = iy1 - jy3;
683 dz13 = iz1 - jz3;
684 dx21 = ix2 - jx1;
685 dy21 = iy2 - jy1;
686 dz21 = iz2 - jz1;
687 dx22 = ix2 - jx2;
688 dy22 = iy2 - jy2;
689 dz22 = iz2 - jz2;
690 dx23 = ix2 - jx3;
691 dy23 = iy2 - jy3;
692 dz23 = iz2 - jz3;
693 dx31 = ix3 - jx1;
694 dy31 = iy3 - jy1;
695 dz31 = iz3 - jz1;
696 dx32 = ix3 - jx2;
697 dy32 = iy3 - jy2;
698 dz32 = iz3 - jz2;
699 dx33 = ix3 - jx3;
700 dy33 = iy3 - jy3;
701 dz33 = iz3 - jz3;
702
703 /* Calculate squared distance and things based on it */
704 rsq11 = dx11*dx11+dy11*dy11+dz11*dz11;
705 rsq12 = dx12*dx12+dy12*dy12+dz12*dz12;
706 rsq13 = dx13*dx13+dy13*dy13+dz13*dz13;
707 rsq21 = dx21*dx21+dy21*dy21+dz21*dz21;
708 rsq22 = dx22*dx22+dy22*dy22+dz22*dz22;
709 rsq23 = dx23*dx23+dy23*dy23+dz23*dz23;
710 rsq31 = dx31*dx31+dy31*dy31+dz31*dz31;
711 rsq32 = dx32*dx32+dy32*dy32+dz32*dz32;
712 rsq33 = dx33*dx33+dy33*dy33+dz33*dz33;
713
714 rinv11 = gmx_invsqrt(rsq11)gmx_software_invsqrt(rsq11);
715 rinv12 = gmx_invsqrt(rsq12)gmx_software_invsqrt(rsq12);
716 rinv13 = gmx_invsqrt(rsq13)gmx_software_invsqrt(rsq13);
717 rinv21 = gmx_invsqrt(rsq21)gmx_software_invsqrt(rsq21);
718 rinv22 = gmx_invsqrt(rsq22)gmx_software_invsqrt(rsq22);
719 rinv23 = gmx_invsqrt(rsq23)gmx_software_invsqrt(rsq23);
720 rinv31 = gmx_invsqrt(rsq31)gmx_software_invsqrt(rsq31);
721 rinv32 = gmx_invsqrt(rsq32)gmx_software_invsqrt(rsq32);
722 rinv33 = gmx_invsqrt(rsq33)gmx_software_invsqrt(rsq33);
723
724 rinvsq11 = rinv11*rinv11;
725 rinvsq12 = rinv12*rinv12;
726 rinvsq13 = rinv13*rinv13;
727 rinvsq21 = rinv21*rinv21;
728 rinvsq22 = rinv22*rinv22;
729 rinvsq23 = rinv23*rinv23;
730 rinvsq31 = rinv31*rinv31;
731 rinvsq32 = rinv32*rinv32;
732 rinvsq33 = rinv33*rinv33;
733
734 /**************************
735 * CALCULATE INTERACTIONS *
736 **************************/
737
738 /* REACTION-FIELD ELECTROSTATICS */
739 felec = qq11*(rinv11*rinvsq11-krf2);
740
741 fscal = felec;
742
743 /* Calculate temporary vectorial force */
744 tx = fscal*dx11;
745 ty = fscal*dy11;
746 tz = fscal*dz11;
747
748 /* Update vectorial force */
749 fix1 += tx;
750 fiy1 += ty;
751 fiz1 += tz;
752 f[j_coord_offset+DIM3*1+XX0] -= tx;
753 f[j_coord_offset+DIM3*1+YY1] -= ty;
754 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
755
756 /**************************
757 * CALCULATE INTERACTIONS *
758 **************************/
759
760 /* REACTION-FIELD ELECTROSTATICS */
761 felec = qq12*(rinv12*rinvsq12-krf2);
762
763 fscal = felec;
764
765 /* Calculate temporary vectorial force */
766 tx = fscal*dx12;
767 ty = fscal*dy12;
768 tz = fscal*dz12;
769
770 /* Update vectorial force */
771 fix1 += tx;
772 fiy1 += ty;
773 fiz1 += tz;
774 f[j_coord_offset+DIM3*2+XX0] -= tx;
775 f[j_coord_offset+DIM3*2+YY1] -= ty;
776 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
777
778 /**************************
779 * CALCULATE INTERACTIONS *
780 **************************/
781
782 /* REACTION-FIELD ELECTROSTATICS */
783 felec = qq13*(rinv13*rinvsq13-krf2);
784
785 fscal = felec;
786
787 /* Calculate temporary vectorial force */
788 tx = fscal*dx13;
789 ty = fscal*dy13;
790 tz = fscal*dz13;
791
792 /* Update vectorial force */
793 fix1 += tx;
794 fiy1 += ty;
795 fiz1 += tz;
796 f[j_coord_offset+DIM3*3+XX0] -= tx;
797 f[j_coord_offset+DIM3*3+YY1] -= ty;
798 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
799
800 /**************************
801 * CALCULATE INTERACTIONS *
802 **************************/
803
804 /* REACTION-FIELD ELECTROSTATICS */
805 felec = qq21*(rinv21*rinvsq21-krf2);
806
807 fscal = felec;
808
809 /* Calculate temporary vectorial force */
810 tx = fscal*dx21;
811 ty = fscal*dy21;
812 tz = fscal*dz21;
813
814 /* Update vectorial force */
815 fix2 += tx;
816 fiy2 += ty;
817 fiz2 += tz;
818 f[j_coord_offset+DIM3*1+XX0] -= tx;
819 f[j_coord_offset+DIM3*1+YY1] -= ty;
820 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
821
822 /**************************
823 * CALCULATE INTERACTIONS *
824 **************************/
825
826 /* REACTION-FIELD ELECTROSTATICS */
827 felec = qq22*(rinv22*rinvsq22-krf2);
828
829 fscal = felec;
830
831 /* Calculate temporary vectorial force */
832 tx = fscal*dx22;
833 ty = fscal*dy22;
834 tz = fscal*dz22;
835
836 /* Update vectorial force */
837 fix2 += tx;
838 fiy2 += ty;
839 fiz2 += tz;
840 f[j_coord_offset+DIM3*2+XX0] -= tx;
841 f[j_coord_offset+DIM3*2+YY1] -= ty;
842 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
843
844 /**************************
845 * CALCULATE INTERACTIONS *
846 **************************/
847
848 /* REACTION-FIELD ELECTROSTATICS */
849 felec = qq23*(rinv23*rinvsq23-krf2);
850
851 fscal = felec;
852
853 /* Calculate temporary vectorial force */
854 tx = fscal*dx23;
855 ty = fscal*dy23;
856 tz = fscal*dz23;
857
858 /* Update vectorial force */
859 fix2 += tx;
860 fiy2 += ty;
861 fiz2 += tz;
862 f[j_coord_offset+DIM3*3+XX0] -= tx;
863 f[j_coord_offset+DIM3*3+YY1] -= ty;
864 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
865
866 /**************************
867 * CALCULATE INTERACTIONS *
868 **************************/
869
870 /* REACTION-FIELD ELECTROSTATICS */
871 felec = qq31*(rinv31*rinvsq31-krf2);
872
873 fscal = felec;
874
875 /* Calculate temporary vectorial force */
876 tx = fscal*dx31;
877 ty = fscal*dy31;
878 tz = fscal*dz31;
879
880 /* Update vectorial force */
881 fix3 += tx;
882 fiy3 += ty;
883 fiz3 += tz;
884 f[j_coord_offset+DIM3*1+XX0] -= tx;
885 f[j_coord_offset+DIM3*1+YY1] -= ty;
886 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
887
888 /**************************
889 * CALCULATE INTERACTIONS *
890 **************************/
891
892 /* REACTION-FIELD ELECTROSTATICS */
893 felec = qq32*(rinv32*rinvsq32-krf2);
894
895 fscal = felec;
896
897 /* Calculate temporary vectorial force */
898 tx = fscal*dx32;
899 ty = fscal*dy32;
900 tz = fscal*dz32;
901
902 /* Update vectorial force */
903 fix3 += tx;
904 fiy3 += ty;
905 fiz3 += tz;
906 f[j_coord_offset+DIM3*2+XX0] -= tx;
907 f[j_coord_offset+DIM3*2+YY1] -= ty;
908 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
909
910 /**************************
911 * CALCULATE INTERACTIONS *
912 **************************/
913
914 /* REACTION-FIELD ELECTROSTATICS */
915 felec = qq33*(rinv33*rinvsq33-krf2);
916
917 fscal = felec;
918
919 /* Calculate temporary vectorial force */
920 tx = fscal*dx33;
921 ty = fscal*dy33;
922 tz = fscal*dz33;
923
924 /* Update vectorial force */
925 fix3 += tx;
926 fiy3 += ty;
927 fiz3 += tz;
928 f[j_coord_offset+DIM3*3+XX0] -= tx;
929 f[j_coord_offset+DIM3*3+YY1] -= ty;
930 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
931
932 /* Inner loop uses 234 flops */
933 }
934 /* End of innermost loop */
935
936 tx = ty = tz = 0;
937 f[i_coord_offset+DIM3*1+XX0] += fix1;
938 f[i_coord_offset+DIM3*1+YY1] += fiy1;
939 f[i_coord_offset+DIM3*1+ZZ2] += fiz1;
940 tx += fix1;
941 ty += fiy1;
942 tz += fiz1;
943 f[i_coord_offset+DIM3*2+XX0] += fix2;
944 f[i_coord_offset+DIM3*2+YY1] += fiy2;
945 f[i_coord_offset+DIM3*2+ZZ2] += fiz2;
946 tx += fix2;
947 ty += fiy2;
948 tz += fiz2;
949 f[i_coord_offset+DIM3*3+XX0] += fix3;
950 f[i_coord_offset+DIM3*3+YY1] += fiy3;
951 f[i_coord_offset+DIM3*3+ZZ2] += fiz3;
952 tx += fix3;
953 ty += fiy3;
954 tz += fiz3;
955 fshift[i_shift_offset+XX0] += tx;
956 fshift[i_shift_offset+YY1] += ty;
957 fshift[i_shift_offset+ZZ2] += tz;
958
959 /* Increment number of inner iterations */
960 inneriter += j_index_end - j_index_start;
961
962 /* Outer loop uses 30 flops */
963 }
964
965 /* Increment number of outer iterations */
966 outeriter += nri;
967
968 /* Update outer/inner flops */
969
970 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_W4W4_F,outeriter*30 + inneriter*234)(nrnb)->n[eNR_NBKERNEL_ELEC_W4W4_F] += outeriter*30 + inneriter
*234
;
971}