Bug Summary

File:gromacs/gmxlib/nonbonded/nb_kernel_c/nb_kernel_ElecCoul_VdwNone_GeomW4W4_c.c
Location:line 584, 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
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 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_ElecCoul_VdwNone_GeomW4W4_VF_c
51 * Electrostatics interaction: Coulomb
52 * VdW interaction: None
53 * Geometry: Water4-Water4
54 * Calculate force/pot: PotentialAndForce
55 */
56void
57nb_kernel_ElecCoul_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
110 /* Setup water-specific parameters */
111 inr = nlist->iinr[0];
112 iq1 = facel*charge[inr+1];
113 iq2 = facel*charge[inr+2];
114 iq3 = facel*charge[inr+3];
115
116 jq1 = charge[inr+1];
117 jq2 = charge[inr+2];
118 jq3 = charge[inr+3];
119 qq11 = iq1*jq1;
120 qq12 = iq1*jq2;
121 qq13 = iq1*jq3;
122 qq21 = iq2*jq1;
123 qq22 = iq2*jq2;
124 qq23 = iq2*jq3;
125 qq31 = iq3*jq1;
126 qq32 = iq3*jq2;
127 qq33 = iq3*jq3;
128
129 outeriter = 0;
130 inneriter = 0;
131
132 /* Start outer loop over neighborlists */
133 for(iidx=0; iidx<nri; iidx++)
134 {
135 /* Load shift vector for this list */
136 i_shift_offset = DIM3*shiftidx[iidx];
137 shX = shiftvec[i_shift_offset+XX0];
138 shY = shiftvec[i_shift_offset+YY1];
139 shZ = shiftvec[i_shift_offset+ZZ2];
140
141 /* Load limits for loop over neighbors */
142 j_index_start = jindex[iidx];
143 j_index_end = jindex[iidx+1];
144
145 /* Get outer coordinate index */
146 inr = iinr[iidx];
147 i_coord_offset = DIM3*inr;
148
149 /* Load i particle coords and add shift vector */
150 ix1 = shX + x[i_coord_offset+DIM3*1+XX0];
151 iy1 = shY + x[i_coord_offset+DIM3*1+YY1];
152 iz1 = shZ + x[i_coord_offset+DIM3*1+ZZ2];
153 ix2 = shX + x[i_coord_offset+DIM3*2+XX0];
154 iy2 = shY + x[i_coord_offset+DIM3*2+YY1];
155 iz2 = shZ + x[i_coord_offset+DIM3*2+ZZ2];
156 ix3 = shX + x[i_coord_offset+DIM3*3+XX0];
157 iy3 = shY + x[i_coord_offset+DIM3*3+YY1];
158 iz3 = shZ + x[i_coord_offset+DIM3*3+ZZ2];
159
160 fix1 = 0.0;
161 fiy1 = 0.0;
162 fiz1 = 0.0;
163 fix2 = 0.0;
164 fiy2 = 0.0;
165 fiz2 = 0.0;
166 fix3 = 0.0;
167 fiy3 = 0.0;
168 fiz3 = 0.0;
169
170 /* Reset potential sums */
171 velecsum = 0.0;
172
173 /* Start inner kernel loop */
174 for(jidx=j_index_start; jidx<j_index_end; jidx++)
175 {
176 /* Get j neighbor index, and coordinate index */
177 jnr = jjnr[jidx];
178 j_coord_offset = DIM3*jnr;
179
180 /* load j atom coordinates */
181 jx1 = x[j_coord_offset+DIM3*1+XX0];
182 jy1 = x[j_coord_offset+DIM3*1+YY1];
183 jz1 = x[j_coord_offset+DIM3*1+ZZ2];
184 jx2 = x[j_coord_offset+DIM3*2+XX0];
185 jy2 = x[j_coord_offset+DIM3*2+YY1];
186 jz2 = x[j_coord_offset+DIM3*2+ZZ2];
187 jx3 = x[j_coord_offset+DIM3*3+XX0];
188 jy3 = x[j_coord_offset+DIM3*3+YY1];
189 jz3 = x[j_coord_offset+DIM3*3+ZZ2];
190
191 /* Calculate displacement vector */
192 dx11 = ix1 - jx1;
193 dy11 = iy1 - jy1;
194 dz11 = iz1 - jz1;
195 dx12 = ix1 - jx2;
196 dy12 = iy1 - jy2;
197 dz12 = iz1 - jz2;
198 dx13 = ix1 - jx3;
199 dy13 = iy1 - jy3;
200 dz13 = iz1 - jz3;
201 dx21 = ix2 - jx1;
202 dy21 = iy2 - jy1;
203 dz21 = iz2 - jz1;
204 dx22 = ix2 - jx2;
205 dy22 = iy2 - jy2;
206 dz22 = iz2 - jz2;
207 dx23 = ix2 - jx3;
208 dy23 = iy2 - jy3;
209 dz23 = iz2 - jz3;
210 dx31 = ix3 - jx1;
211 dy31 = iy3 - jy1;
212 dz31 = iz3 - jz1;
213 dx32 = ix3 - jx2;
214 dy32 = iy3 - jy2;
215 dz32 = iz3 - jz2;
216 dx33 = ix3 - jx3;
217 dy33 = iy3 - jy3;
218 dz33 = iz3 - jz3;
219
220 /* Calculate squared distance and things based on it */
221 rsq11 = dx11*dx11+dy11*dy11+dz11*dz11;
222 rsq12 = dx12*dx12+dy12*dy12+dz12*dz12;
223 rsq13 = dx13*dx13+dy13*dy13+dz13*dz13;
224 rsq21 = dx21*dx21+dy21*dy21+dz21*dz21;
225 rsq22 = dx22*dx22+dy22*dy22+dz22*dz22;
226 rsq23 = dx23*dx23+dy23*dy23+dz23*dz23;
227 rsq31 = dx31*dx31+dy31*dy31+dz31*dz31;
228 rsq32 = dx32*dx32+dy32*dy32+dz32*dz32;
229 rsq33 = dx33*dx33+dy33*dy33+dz33*dz33;
230
231 rinv11 = gmx_invsqrt(rsq11)gmx_software_invsqrt(rsq11);
232 rinv12 = gmx_invsqrt(rsq12)gmx_software_invsqrt(rsq12);
233 rinv13 = gmx_invsqrt(rsq13)gmx_software_invsqrt(rsq13);
234 rinv21 = gmx_invsqrt(rsq21)gmx_software_invsqrt(rsq21);
235 rinv22 = gmx_invsqrt(rsq22)gmx_software_invsqrt(rsq22);
236 rinv23 = gmx_invsqrt(rsq23)gmx_software_invsqrt(rsq23);
237 rinv31 = gmx_invsqrt(rsq31)gmx_software_invsqrt(rsq31);
238 rinv32 = gmx_invsqrt(rsq32)gmx_software_invsqrt(rsq32);
239 rinv33 = gmx_invsqrt(rsq33)gmx_software_invsqrt(rsq33);
240
241 rinvsq11 = rinv11*rinv11;
242 rinvsq12 = rinv12*rinv12;
243 rinvsq13 = rinv13*rinv13;
244 rinvsq21 = rinv21*rinv21;
245 rinvsq22 = rinv22*rinv22;
246 rinvsq23 = rinv23*rinv23;
247 rinvsq31 = rinv31*rinv31;
248 rinvsq32 = rinv32*rinv32;
249 rinvsq33 = rinv33*rinv33;
250
251 /**************************
252 * CALCULATE INTERACTIONS *
253 **************************/
254
255 /* COULOMB ELECTROSTATICS */
256 velec = qq11*rinv11;
257 felec = velec*rinvsq11;
258
259 /* Update potential sums from outer loop */
260 velecsum += velec;
261
262 fscal = felec;
263
264 /* Calculate temporary vectorial force */
265 tx = fscal*dx11;
266 ty = fscal*dy11;
267 tz = fscal*dz11;
268
269 /* Update vectorial force */
270 fix1 += tx;
271 fiy1 += ty;
272 fiz1 += tz;
273 f[j_coord_offset+DIM3*1+XX0] -= tx;
274 f[j_coord_offset+DIM3*1+YY1] -= ty;
275 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
276
277 /**************************
278 * CALCULATE INTERACTIONS *
279 **************************/
280
281 /* COULOMB ELECTROSTATICS */
282 velec = qq12*rinv12;
283 felec = velec*rinvsq12;
284
285 /* Update potential sums from outer loop */
286 velecsum += velec;
287
288 fscal = felec;
289
290 /* Calculate temporary vectorial force */
291 tx = fscal*dx12;
292 ty = fscal*dy12;
293 tz = fscal*dz12;
294
295 /* Update vectorial force */
296 fix1 += tx;
297 fiy1 += ty;
298 fiz1 += tz;
299 f[j_coord_offset+DIM3*2+XX0] -= tx;
300 f[j_coord_offset+DIM3*2+YY1] -= ty;
301 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
302
303 /**************************
304 * CALCULATE INTERACTIONS *
305 **************************/
306
307 /* COULOMB ELECTROSTATICS */
308 velec = qq13*rinv13;
309 felec = velec*rinvsq13;
310
311 /* Update potential sums from outer loop */
312 velecsum += velec;
313
314 fscal = felec;
315
316 /* Calculate temporary vectorial force */
317 tx = fscal*dx13;
318 ty = fscal*dy13;
319 tz = fscal*dz13;
320
321 /* Update vectorial force */
322 fix1 += tx;
323 fiy1 += ty;
324 fiz1 += tz;
325 f[j_coord_offset+DIM3*3+XX0] -= tx;
326 f[j_coord_offset+DIM3*3+YY1] -= ty;
327 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
328
329 /**************************
330 * CALCULATE INTERACTIONS *
331 **************************/
332
333 /* COULOMB ELECTROSTATICS */
334 velec = qq21*rinv21;
335 felec = velec*rinvsq21;
336
337 /* Update potential sums from outer loop */
338 velecsum += velec;
339
340 fscal = felec;
341
342 /* Calculate temporary vectorial force */
343 tx = fscal*dx21;
344 ty = fscal*dy21;
345 tz = fscal*dz21;
346
347 /* Update vectorial force */
348 fix2 += tx;
349 fiy2 += ty;
350 fiz2 += tz;
351 f[j_coord_offset+DIM3*1+XX0] -= tx;
352 f[j_coord_offset+DIM3*1+YY1] -= ty;
353 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
354
355 /**************************
356 * CALCULATE INTERACTIONS *
357 **************************/
358
359 /* COULOMB ELECTROSTATICS */
360 velec = qq22*rinv22;
361 felec = velec*rinvsq22;
362
363 /* Update potential sums from outer loop */
364 velecsum += velec;
365
366 fscal = felec;
367
368 /* Calculate temporary vectorial force */
369 tx = fscal*dx22;
370 ty = fscal*dy22;
371 tz = fscal*dz22;
372
373 /* Update vectorial force */
374 fix2 += tx;
375 fiy2 += ty;
376 fiz2 += tz;
377 f[j_coord_offset+DIM3*2+XX0] -= tx;
378 f[j_coord_offset+DIM3*2+YY1] -= ty;
379 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
380
381 /**************************
382 * CALCULATE INTERACTIONS *
383 **************************/
384
385 /* COULOMB ELECTROSTATICS */
386 velec = qq23*rinv23;
387 felec = velec*rinvsq23;
388
389 /* Update potential sums from outer loop */
390 velecsum += velec;
391
392 fscal = felec;
393
394 /* Calculate temporary vectorial force */
395 tx = fscal*dx23;
396 ty = fscal*dy23;
397 tz = fscal*dz23;
398
399 /* Update vectorial force */
400 fix2 += tx;
401 fiy2 += ty;
402 fiz2 += tz;
403 f[j_coord_offset+DIM3*3+XX0] -= tx;
404 f[j_coord_offset+DIM3*3+YY1] -= ty;
405 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
406
407 /**************************
408 * CALCULATE INTERACTIONS *
409 **************************/
410
411 /* COULOMB ELECTROSTATICS */
412 velec = qq31*rinv31;
413 felec = velec*rinvsq31;
414
415 /* Update potential sums from outer loop */
416 velecsum += velec;
417
418 fscal = felec;
419
420 /* Calculate temporary vectorial force */
421 tx = fscal*dx31;
422 ty = fscal*dy31;
423 tz = fscal*dz31;
424
425 /* Update vectorial force */
426 fix3 += tx;
427 fiy3 += ty;
428 fiz3 += tz;
429 f[j_coord_offset+DIM3*1+XX0] -= tx;
430 f[j_coord_offset+DIM3*1+YY1] -= ty;
431 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
432
433 /**************************
434 * CALCULATE INTERACTIONS *
435 **************************/
436
437 /* COULOMB ELECTROSTATICS */
438 velec = qq32*rinv32;
439 felec = velec*rinvsq32;
440
441 /* Update potential sums from outer loop */
442 velecsum += velec;
443
444 fscal = felec;
445
446 /* Calculate temporary vectorial force */
447 tx = fscal*dx32;
448 ty = fscal*dy32;
449 tz = fscal*dz32;
450
451 /* Update vectorial force */
452 fix3 += tx;
453 fiy3 += ty;
454 fiz3 += tz;
455 f[j_coord_offset+DIM3*2+XX0] -= tx;
456 f[j_coord_offset+DIM3*2+YY1] -= ty;
457 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
458
459 /**************************
460 * CALCULATE INTERACTIONS *
461 **************************/
462
463 /* COULOMB ELECTROSTATICS */
464 velec = qq33*rinv33;
465 felec = velec*rinvsq33;
466
467 /* Update potential sums from outer loop */
468 velecsum += velec;
469
470 fscal = felec;
471
472 /* Calculate temporary vectorial force */
473 tx = fscal*dx33;
474 ty = fscal*dy33;
475 tz = fscal*dz33;
476
477 /* Update vectorial force */
478 fix3 += tx;
479 fiy3 += ty;
480 fiz3 += tz;
481 f[j_coord_offset+DIM3*3+XX0] -= tx;
482 f[j_coord_offset+DIM3*3+YY1] -= ty;
483 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
484
485 /* Inner loop uses 243 flops */
486 }
487 /* End of innermost loop */
488
489 tx = ty = tz = 0;
490 f[i_coord_offset+DIM3*1+XX0] += fix1;
491 f[i_coord_offset+DIM3*1+YY1] += fiy1;
492 f[i_coord_offset+DIM3*1+ZZ2] += fiz1;
493 tx += fix1;
494 ty += fiy1;
495 tz += fiz1;
496 f[i_coord_offset+DIM3*2+XX0] += fix2;
497 f[i_coord_offset+DIM3*2+YY1] += fiy2;
498 f[i_coord_offset+DIM3*2+ZZ2] += fiz2;
499 tx += fix2;
500 ty += fiy2;
501 tz += fiz2;
502 f[i_coord_offset+DIM3*3+XX0] += fix3;
503 f[i_coord_offset+DIM3*3+YY1] += fiy3;
504 f[i_coord_offset+DIM3*3+ZZ2] += fiz3;
505 tx += fix3;
506 ty += fiy3;
507 tz += fiz3;
508 fshift[i_shift_offset+XX0] += tx;
509 fshift[i_shift_offset+YY1] += ty;
510 fshift[i_shift_offset+ZZ2] += tz;
511
512 ggid = gid[iidx];
513 /* Update potential energies */
514 kernel_data->energygrp_elec[ggid] += velecsum;
515
516 /* Increment number of inner iterations */
517 inneriter += j_index_end - j_index_start;
518
519 /* Outer loop uses 31 flops */
520 }
521
522 /* Increment number of outer iterations */
523 outeriter += nri;
524
525 /* Update outer/inner flops */
526
527 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_W4W4_VF,outeriter*31 + inneriter*243)(nrnb)->n[eNR_NBKERNEL_ELEC_W4W4_VF] += outeriter*31 + inneriter
*243
;
528}
529/*
530 * Gromacs nonbonded kernel: nb_kernel_ElecCoul_VdwNone_GeomW4W4_F_c
531 * Electrostatics interaction: Coulomb
532 * VdW interaction: None
533 * Geometry: Water4-Water4
534 * Calculate force/pot: Force
535 */
536void
537nb_kernel_ElecCoul_VdwNone_GeomW4W4_F_c
538 (t_nblist * gmx_restrict__restrict nlist,
539 rvec * gmx_restrict__restrict xx,
540 rvec * gmx_restrict__restrict ff,
541 t_forcerec * gmx_restrict__restrict fr,
542 t_mdatoms * gmx_restrict__restrict mdatoms,
543 nb_kernel_data_t gmx_unused__attribute__ ((unused)) * gmx_restrict__restrict kernel_data,
544 t_nrnb * gmx_restrict__restrict nrnb)
545{
546 int i_shift_offset,i_coord_offset,j_coord_offset;
547 int j_index_start,j_index_end;
548 int nri,inr,ggid,iidx,jidx,jnr,outeriter,inneriter;
549 real shX,shY,shZ,tx,ty,tz,fscal,rcutoff,rcutoff2;
550 int *iinr,*jindex,*jjnr,*shiftidx,*gid;
551 real *shiftvec,*fshift,*x,*f;
552 int vdwioffset1;
553 real ix1,iy1,iz1,fix1,fiy1,fiz1,iq1,isai1;
554 int vdwioffset2;
555 real ix2,iy2,iz2,fix2,fiy2,fiz2,iq2,isai2;
556 int vdwioffset3;
557 real ix3,iy3,iz3,fix3,fiy3,fiz3,iq3,isai3;
558 int vdwjidx1;
559 real jx1,jy1,jz1,fjx1,fjy1,fjz1,jq1,isaj1;
560 int vdwjidx2;
561 real jx2,jy2,jz2,fjx2,fjy2,fjz2,jq2,isaj2;
562 int vdwjidx3;
563 real jx3,jy3,jz3,fjx3,fjy3,fjz3,jq3,isaj3;
564 real dx11,dy11,dz11,rsq11,rinv11,rinvsq11,r11,qq11,c6_11,c12_11,cexp1_11,cexp2_11;
565 real dx12,dy12,dz12,rsq12,rinv12,rinvsq12,r12,qq12,c6_12,c12_12,cexp1_12,cexp2_12;
566 real dx13,dy13,dz13,rsq13,rinv13,rinvsq13,r13,qq13,c6_13,c12_13,cexp1_13,cexp2_13;
567 real dx21,dy21,dz21,rsq21,rinv21,rinvsq21,r21,qq21,c6_21,c12_21,cexp1_21,cexp2_21;
568 real dx22,dy22,dz22,rsq22,rinv22,rinvsq22,r22,qq22,c6_22,c12_22,cexp1_22,cexp2_22;
569 real dx23,dy23,dz23,rsq23,rinv23,rinvsq23,r23,qq23,c6_23,c12_23,cexp1_23,cexp2_23;
570 real dx31,dy31,dz31,rsq31,rinv31,rinvsq31,r31,qq31,c6_31,c12_31,cexp1_31,cexp2_31;
571 real dx32,dy32,dz32,rsq32,rinv32,rinvsq32,r32,qq32,c6_32,c12_32,cexp1_32,cexp2_32;
572 real dx33,dy33,dz33,rsq33,rinv33,rinvsq33,r33,qq33,c6_33,c12_33,cexp1_33,cexp2_33;
573 real velec,felec,velecsum,facel,crf,krf,krf2;
574 real *charge;
575
576 x = xx[0];
577 f = ff[0];
578
579 nri = nlist->nri;
580 iinr = nlist->iinr;
581 jindex = nlist->jindex;
582 jjnr = nlist->jjnr;
583 shiftidx = nlist->shift;
584 gid = nlist->gid;
Value stored to 'gid' is never read
585 shiftvec = fr->shift_vec[0];
586 fshift = fr->fshift[0];
587 facel = fr->epsfac;
588 charge = mdatoms->chargeA;
589
590 /* Setup water-specific parameters */
591 inr = nlist->iinr[0];
592 iq1 = facel*charge[inr+1];
593 iq2 = facel*charge[inr+2];
594 iq3 = facel*charge[inr+3];
595
596 jq1 = charge[inr+1];
597 jq2 = charge[inr+2];
598 jq3 = charge[inr+3];
599 qq11 = iq1*jq1;
600 qq12 = iq1*jq2;
601 qq13 = iq1*jq3;
602 qq21 = iq2*jq1;
603 qq22 = iq2*jq2;
604 qq23 = iq2*jq3;
605 qq31 = iq3*jq1;
606 qq32 = iq3*jq2;
607 qq33 = iq3*jq3;
608
609 outeriter = 0;
610 inneriter = 0;
611
612 /* Start outer loop over neighborlists */
613 for(iidx=0; iidx<nri; iidx++)
614 {
615 /* Load shift vector for this list */
616 i_shift_offset = DIM3*shiftidx[iidx];
617 shX = shiftvec[i_shift_offset+XX0];
618 shY = shiftvec[i_shift_offset+YY1];
619 shZ = shiftvec[i_shift_offset+ZZ2];
620
621 /* Load limits for loop over neighbors */
622 j_index_start = jindex[iidx];
623 j_index_end = jindex[iidx+1];
624
625 /* Get outer coordinate index */
626 inr = iinr[iidx];
627 i_coord_offset = DIM3*inr;
628
629 /* Load i particle coords and add shift vector */
630 ix1 = shX + x[i_coord_offset+DIM3*1+XX0];
631 iy1 = shY + x[i_coord_offset+DIM3*1+YY1];
632 iz1 = shZ + x[i_coord_offset+DIM3*1+ZZ2];
633 ix2 = shX + x[i_coord_offset+DIM3*2+XX0];
634 iy2 = shY + x[i_coord_offset+DIM3*2+YY1];
635 iz2 = shZ + x[i_coord_offset+DIM3*2+ZZ2];
636 ix3 = shX + x[i_coord_offset+DIM3*3+XX0];
637 iy3 = shY + x[i_coord_offset+DIM3*3+YY1];
638 iz3 = shZ + x[i_coord_offset+DIM3*3+ZZ2];
639
640 fix1 = 0.0;
641 fiy1 = 0.0;
642 fiz1 = 0.0;
643 fix2 = 0.0;
644 fiy2 = 0.0;
645 fiz2 = 0.0;
646 fix3 = 0.0;
647 fiy3 = 0.0;
648 fiz3 = 0.0;
649
650 /* Start inner kernel loop */
651 for(jidx=j_index_start; jidx<j_index_end; jidx++)
652 {
653 /* Get j neighbor index, and coordinate index */
654 jnr = jjnr[jidx];
655 j_coord_offset = DIM3*jnr;
656
657 /* load j atom coordinates */
658 jx1 = x[j_coord_offset+DIM3*1+XX0];
659 jy1 = x[j_coord_offset+DIM3*1+YY1];
660 jz1 = x[j_coord_offset+DIM3*1+ZZ2];
661 jx2 = x[j_coord_offset+DIM3*2+XX0];
662 jy2 = x[j_coord_offset+DIM3*2+YY1];
663 jz2 = x[j_coord_offset+DIM3*2+ZZ2];
664 jx3 = x[j_coord_offset+DIM3*3+XX0];
665 jy3 = x[j_coord_offset+DIM3*3+YY1];
666 jz3 = x[j_coord_offset+DIM3*3+ZZ2];
667
668 /* Calculate displacement vector */
669 dx11 = ix1 - jx1;
670 dy11 = iy1 - jy1;
671 dz11 = iz1 - jz1;
672 dx12 = ix1 - jx2;
673 dy12 = iy1 - jy2;
674 dz12 = iz1 - jz2;
675 dx13 = ix1 - jx3;
676 dy13 = iy1 - jy3;
677 dz13 = iz1 - jz3;
678 dx21 = ix2 - jx1;
679 dy21 = iy2 - jy1;
680 dz21 = iz2 - jz1;
681 dx22 = ix2 - jx2;
682 dy22 = iy2 - jy2;
683 dz22 = iz2 - jz2;
684 dx23 = ix2 - jx3;
685 dy23 = iy2 - jy3;
686 dz23 = iz2 - jz3;
687 dx31 = ix3 - jx1;
688 dy31 = iy3 - jy1;
689 dz31 = iz3 - jz1;
690 dx32 = ix3 - jx2;
691 dy32 = iy3 - jy2;
692 dz32 = iz3 - jz2;
693 dx33 = ix3 - jx3;
694 dy33 = iy3 - jy3;
695 dz33 = iz3 - jz3;
696
697 /* Calculate squared distance and things based on it */
698 rsq11 = dx11*dx11+dy11*dy11+dz11*dz11;
699 rsq12 = dx12*dx12+dy12*dy12+dz12*dz12;
700 rsq13 = dx13*dx13+dy13*dy13+dz13*dz13;
701 rsq21 = dx21*dx21+dy21*dy21+dz21*dz21;
702 rsq22 = dx22*dx22+dy22*dy22+dz22*dz22;
703 rsq23 = dx23*dx23+dy23*dy23+dz23*dz23;
704 rsq31 = dx31*dx31+dy31*dy31+dz31*dz31;
705 rsq32 = dx32*dx32+dy32*dy32+dz32*dz32;
706 rsq33 = dx33*dx33+dy33*dy33+dz33*dz33;
707
708 rinv11 = gmx_invsqrt(rsq11)gmx_software_invsqrt(rsq11);
709 rinv12 = gmx_invsqrt(rsq12)gmx_software_invsqrt(rsq12);
710 rinv13 = gmx_invsqrt(rsq13)gmx_software_invsqrt(rsq13);
711 rinv21 = gmx_invsqrt(rsq21)gmx_software_invsqrt(rsq21);
712 rinv22 = gmx_invsqrt(rsq22)gmx_software_invsqrt(rsq22);
713 rinv23 = gmx_invsqrt(rsq23)gmx_software_invsqrt(rsq23);
714 rinv31 = gmx_invsqrt(rsq31)gmx_software_invsqrt(rsq31);
715 rinv32 = gmx_invsqrt(rsq32)gmx_software_invsqrt(rsq32);
716 rinv33 = gmx_invsqrt(rsq33)gmx_software_invsqrt(rsq33);
717
718 rinvsq11 = rinv11*rinv11;
719 rinvsq12 = rinv12*rinv12;
720 rinvsq13 = rinv13*rinv13;
721 rinvsq21 = rinv21*rinv21;
722 rinvsq22 = rinv22*rinv22;
723 rinvsq23 = rinv23*rinv23;
724 rinvsq31 = rinv31*rinv31;
725 rinvsq32 = rinv32*rinv32;
726 rinvsq33 = rinv33*rinv33;
727
728 /**************************
729 * CALCULATE INTERACTIONS *
730 **************************/
731
732 /* COULOMB ELECTROSTATICS */
733 velec = qq11*rinv11;
734 felec = velec*rinvsq11;
735
736 fscal = felec;
737
738 /* Calculate temporary vectorial force */
739 tx = fscal*dx11;
740 ty = fscal*dy11;
741 tz = fscal*dz11;
742
743 /* Update vectorial force */
744 fix1 += tx;
745 fiy1 += ty;
746 fiz1 += tz;
747 f[j_coord_offset+DIM3*1+XX0] -= tx;
748 f[j_coord_offset+DIM3*1+YY1] -= ty;
749 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
750
751 /**************************
752 * CALCULATE INTERACTIONS *
753 **************************/
754
755 /* COULOMB ELECTROSTATICS */
756 velec = qq12*rinv12;
757 felec = velec*rinvsq12;
758
759 fscal = felec;
760
761 /* Calculate temporary vectorial force */
762 tx = fscal*dx12;
763 ty = fscal*dy12;
764 tz = fscal*dz12;
765
766 /* Update vectorial force */
767 fix1 += tx;
768 fiy1 += ty;
769 fiz1 += tz;
770 f[j_coord_offset+DIM3*2+XX0] -= tx;
771 f[j_coord_offset+DIM3*2+YY1] -= ty;
772 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
773
774 /**************************
775 * CALCULATE INTERACTIONS *
776 **************************/
777
778 /* COULOMB ELECTROSTATICS */
779 velec = qq13*rinv13;
780 felec = velec*rinvsq13;
781
782 fscal = felec;
783
784 /* Calculate temporary vectorial force */
785 tx = fscal*dx13;
786 ty = fscal*dy13;
787 tz = fscal*dz13;
788
789 /* Update vectorial force */
790 fix1 += tx;
791 fiy1 += ty;
792 fiz1 += tz;
793 f[j_coord_offset+DIM3*3+XX0] -= tx;
794 f[j_coord_offset+DIM3*3+YY1] -= ty;
795 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
796
797 /**************************
798 * CALCULATE INTERACTIONS *
799 **************************/
800
801 /* COULOMB ELECTROSTATICS */
802 velec = qq21*rinv21;
803 felec = velec*rinvsq21;
804
805 fscal = felec;
806
807 /* Calculate temporary vectorial force */
808 tx = fscal*dx21;
809 ty = fscal*dy21;
810 tz = fscal*dz21;
811
812 /* Update vectorial force */
813 fix2 += tx;
814 fiy2 += ty;
815 fiz2 += tz;
816 f[j_coord_offset+DIM3*1+XX0] -= tx;
817 f[j_coord_offset+DIM3*1+YY1] -= ty;
818 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
819
820 /**************************
821 * CALCULATE INTERACTIONS *
822 **************************/
823
824 /* COULOMB ELECTROSTATICS */
825 velec = qq22*rinv22;
826 felec = velec*rinvsq22;
827
828 fscal = felec;
829
830 /* Calculate temporary vectorial force */
831 tx = fscal*dx22;
832 ty = fscal*dy22;
833 tz = fscal*dz22;
834
835 /* Update vectorial force */
836 fix2 += tx;
837 fiy2 += ty;
838 fiz2 += tz;
839 f[j_coord_offset+DIM3*2+XX0] -= tx;
840 f[j_coord_offset+DIM3*2+YY1] -= ty;
841 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
842
843 /**************************
844 * CALCULATE INTERACTIONS *
845 **************************/
846
847 /* COULOMB ELECTROSTATICS */
848 velec = qq23*rinv23;
849 felec = velec*rinvsq23;
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 /* COULOMB ELECTROSTATICS */
871 velec = qq31*rinv31;
872 felec = velec*rinvsq31;
873
874 fscal = felec;
875
876 /* Calculate temporary vectorial force */
877 tx = fscal*dx31;
878 ty = fscal*dy31;
879 tz = fscal*dz31;
880
881 /* Update vectorial force */
882 fix3 += tx;
883 fiy3 += ty;
884 fiz3 += tz;
885 f[j_coord_offset+DIM3*1+XX0] -= tx;
886 f[j_coord_offset+DIM3*1+YY1] -= ty;
887 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
888
889 /**************************
890 * CALCULATE INTERACTIONS *
891 **************************/
892
893 /* COULOMB ELECTROSTATICS */
894 velec = qq32*rinv32;
895 felec = velec*rinvsq32;
896
897 fscal = felec;
898
899 /* Calculate temporary vectorial force */
900 tx = fscal*dx32;
901 ty = fscal*dy32;
902 tz = fscal*dz32;
903
904 /* Update vectorial force */
905 fix3 += tx;
906 fiy3 += ty;
907 fiz3 += tz;
908 f[j_coord_offset+DIM3*2+XX0] -= tx;
909 f[j_coord_offset+DIM3*2+YY1] -= ty;
910 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
911
912 /**************************
913 * CALCULATE INTERACTIONS *
914 **************************/
915
916 /* COULOMB ELECTROSTATICS */
917 velec = qq33*rinv33;
918 felec = velec*rinvsq33;
919
920 fscal = felec;
921
922 /* Calculate temporary vectorial force */
923 tx = fscal*dx33;
924 ty = fscal*dy33;
925 tz = fscal*dz33;
926
927 /* Update vectorial force */
928 fix3 += tx;
929 fiy3 += ty;
930 fiz3 += tz;
931 f[j_coord_offset+DIM3*3+XX0] -= tx;
932 f[j_coord_offset+DIM3*3+YY1] -= ty;
933 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
934
935 /* Inner loop uses 234 flops */
936 }
937 /* End of innermost loop */
938
939 tx = ty = tz = 0;
940 f[i_coord_offset+DIM3*1+XX0] += fix1;
941 f[i_coord_offset+DIM3*1+YY1] += fiy1;
942 f[i_coord_offset+DIM3*1+ZZ2] += fiz1;
943 tx += fix1;
944 ty += fiy1;
945 tz += fiz1;
946 f[i_coord_offset+DIM3*2+XX0] += fix2;
947 f[i_coord_offset+DIM3*2+YY1] += fiy2;
948 f[i_coord_offset+DIM3*2+ZZ2] += fiz2;
949 tx += fix2;
950 ty += fiy2;
951 tz += fiz2;
952 f[i_coord_offset+DIM3*3+XX0] += fix3;
953 f[i_coord_offset+DIM3*3+YY1] += fiy3;
954 f[i_coord_offset+DIM3*3+ZZ2] += fiz3;
955 tx += fix3;
956 ty += fiy3;
957 tz += fiz3;
958 fshift[i_shift_offset+XX0] += tx;
959 fshift[i_shift_offset+YY1] += ty;
960 fshift[i_shift_offset+ZZ2] += tz;
961
962 /* Increment number of inner iterations */
963 inneriter += j_index_end - j_index_start;
964
965 /* Outer loop uses 30 flops */
966 }
967
968 /* Increment number of outer iterations */
969 outeriter += nri;
970
971 /* Update outer/inner flops */
972
973 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_W4W4_F,outeriter*30 + inneriter*234)(nrnb)->n[eNR_NBKERNEL_ELEC_W4W4_F] += outeriter*30 + inneriter
*234
;
974}