Bug Summary

File:gromacs/gmxlib/nonbonded/nb_kernel_c/nb_kernel_ElecCSTab_VdwBham_GeomW4W4_c.c
Location:line 800, 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
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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.
18 *
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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_ElecCSTab_VdwBham_GeomW4W4_VF_c
51 * Electrostatics interaction: CubicSplineTable
52 * VdW interaction: Buckingham
53 * Geometry: Water4-Water4
54 * Calculate force/pot: PotentialAndForce
55 */
56void
57nb_kernel_ElecCSTab_VdwBham_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 int vfitab;
105 real rt,vfeps,vftabscale,Y,F,Geps,Heps2,Fp,VV,FF;
106 real *vftab;
107
108 x = xx[0];
109 f = ff[0];
110
111 nri = nlist->nri;
112 iinr = nlist->iinr;
113 jindex = nlist->jindex;
114 jjnr = nlist->jjnr;
115 shiftidx = nlist->shift;
116 gid = nlist->gid;
117 shiftvec = fr->shift_vec[0];
118 fshift = fr->fshift[0];
119 facel = fr->epsfac;
120 charge = mdatoms->chargeA;
121 nvdwtype = fr->ntype;
122 vdwparam = fr->nbfp;
123 vdwtype = mdatoms->typeA;
124
125 vftab = kernel_data->table_elec->data;
126 vftabscale = kernel_data->table_elec->scale;
127
128 /* Setup water-specific parameters */
129 inr = nlist->iinr[0];
130 iq1 = facel*charge[inr+1];
131 iq2 = facel*charge[inr+2];
132 iq3 = facel*charge[inr+3];
133 vdwioffset0 = 3*nvdwtype*vdwtype[inr+0];
134
135 jq1 = charge[inr+1];
136 jq2 = charge[inr+2];
137 jq3 = charge[inr+3];
138 vdwjidx0 = 3*vdwtype[inr+0];
139 c6_00 = vdwparam[vdwioffset0+vdwjidx0];
140 cexp1_00 = vdwparam[vdwioffset0+vdwjidx0+1];
141 cexp2_00 = vdwparam[vdwioffset0+vdwjidx0+2];
142 qq11 = iq1*jq1;
143 qq12 = iq1*jq2;
144 qq13 = iq1*jq3;
145 qq21 = iq2*jq1;
146 qq22 = iq2*jq2;
147 qq23 = iq2*jq3;
148 qq31 = iq3*jq1;
149 qq32 = iq3*jq2;
150 qq33 = iq3*jq3;
151
152 outeriter = 0;
153 inneriter = 0;
154
155 /* Start outer loop over neighborlists */
156 for(iidx=0; iidx<nri; iidx++)
157 {
158 /* Load shift vector for this list */
159 i_shift_offset = DIM3*shiftidx[iidx];
160 shX = shiftvec[i_shift_offset+XX0];
161 shY = shiftvec[i_shift_offset+YY1];
162 shZ = shiftvec[i_shift_offset+ZZ2];
163
164 /* Load limits for loop over neighbors */
165 j_index_start = jindex[iidx];
166 j_index_end = jindex[iidx+1];
167
168 /* Get outer coordinate index */
169 inr = iinr[iidx];
170 i_coord_offset = DIM3*inr;
171
172 /* Load i particle coords and add shift vector */
173 ix0 = shX + x[i_coord_offset+DIM3*0+XX0];
174 iy0 = shY + x[i_coord_offset+DIM3*0+YY1];
175 iz0 = shZ + x[i_coord_offset+DIM3*0+ZZ2];
176 ix1 = shX + x[i_coord_offset+DIM3*1+XX0];
177 iy1 = shY + x[i_coord_offset+DIM3*1+YY1];
178 iz1 = shZ + x[i_coord_offset+DIM3*1+ZZ2];
179 ix2 = shX + x[i_coord_offset+DIM3*2+XX0];
180 iy2 = shY + x[i_coord_offset+DIM3*2+YY1];
181 iz2 = shZ + x[i_coord_offset+DIM3*2+ZZ2];
182 ix3 = shX + x[i_coord_offset+DIM3*3+XX0];
183 iy3 = shY + x[i_coord_offset+DIM3*3+YY1];
184 iz3 = shZ + x[i_coord_offset+DIM3*3+ZZ2];
185
186 fix0 = 0.0;
187 fiy0 = 0.0;
188 fiz0 = 0.0;
189 fix1 = 0.0;
190 fiy1 = 0.0;
191 fiz1 = 0.0;
192 fix2 = 0.0;
193 fiy2 = 0.0;
194 fiz2 = 0.0;
195 fix3 = 0.0;
196 fiy3 = 0.0;
197 fiz3 = 0.0;
198
199 /* Reset potential sums */
200 velecsum = 0.0;
201 vvdwsum = 0.0;
202
203 /* Start inner kernel loop */
204 for(jidx=j_index_start; jidx<j_index_end; jidx++)
205 {
206 /* Get j neighbor index, and coordinate index */
207 jnr = jjnr[jidx];
208 j_coord_offset = DIM3*jnr;
209
210 /* load j atom coordinates */
211 jx0 = x[j_coord_offset+DIM3*0+XX0];
212 jy0 = x[j_coord_offset+DIM3*0+YY1];
213 jz0 = x[j_coord_offset+DIM3*0+ZZ2];
214 jx1 = x[j_coord_offset+DIM3*1+XX0];
215 jy1 = x[j_coord_offset+DIM3*1+YY1];
216 jz1 = x[j_coord_offset+DIM3*1+ZZ2];
217 jx2 = x[j_coord_offset+DIM3*2+XX0];
218 jy2 = x[j_coord_offset+DIM3*2+YY1];
219 jz2 = x[j_coord_offset+DIM3*2+ZZ2];
220 jx3 = x[j_coord_offset+DIM3*3+XX0];
221 jy3 = x[j_coord_offset+DIM3*3+YY1];
222 jz3 = x[j_coord_offset+DIM3*3+ZZ2];
223
224 /* Calculate displacement vector */
225 dx00 = ix0 - jx0;
226 dy00 = iy0 - jy0;
227 dz00 = iz0 - jz0;
228 dx11 = ix1 - jx1;
229 dy11 = iy1 - jy1;
230 dz11 = iz1 - jz1;
231 dx12 = ix1 - jx2;
232 dy12 = iy1 - jy2;
233 dz12 = iz1 - jz2;
234 dx13 = ix1 - jx3;
235 dy13 = iy1 - jy3;
236 dz13 = iz1 - jz3;
237 dx21 = ix2 - jx1;
238 dy21 = iy2 - jy1;
239 dz21 = iz2 - jz1;
240 dx22 = ix2 - jx2;
241 dy22 = iy2 - jy2;
242 dz22 = iz2 - jz2;
243 dx23 = ix2 - jx3;
244 dy23 = iy2 - jy3;
245 dz23 = iz2 - jz3;
246 dx31 = ix3 - jx1;
247 dy31 = iy3 - jy1;
248 dz31 = iz3 - jz1;
249 dx32 = ix3 - jx2;
250 dy32 = iy3 - jy2;
251 dz32 = iz3 - jz2;
252 dx33 = ix3 - jx3;
253 dy33 = iy3 - jy3;
254 dz33 = iz3 - jz3;
255
256 /* Calculate squared distance and things based on it */
257 rsq00 = dx00*dx00+dy00*dy00+dz00*dz00;
258 rsq11 = dx11*dx11+dy11*dy11+dz11*dz11;
259 rsq12 = dx12*dx12+dy12*dy12+dz12*dz12;
260 rsq13 = dx13*dx13+dy13*dy13+dz13*dz13;
261 rsq21 = dx21*dx21+dy21*dy21+dz21*dz21;
262 rsq22 = dx22*dx22+dy22*dy22+dz22*dz22;
263 rsq23 = dx23*dx23+dy23*dy23+dz23*dz23;
264 rsq31 = dx31*dx31+dy31*dy31+dz31*dz31;
265 rsq32 = dx32*dx32+dy32*dy32+dz32*dz32;
266 rsq33 = dx33*dx33+dy33*dy33+dz33*dz33;
267
268 rinv00 = gmx_invsqrt(rsq00)gmx_software_invsqrt(rsq00);
269 rinv11 = gmx_invsqrt(rsq11)gmx_software_invsqrt(rsq11);
270 rinv12 = gmx_invsqrt(rsq12)gmx_software_invsqrt(rsq12);
271 rinv13 = gmx_invsqrt(rsq13)gmx_software_invsqrt(rsq13);
272 rinv21 = gmx_invsqrt(rsq21)gmx_software_invsqrt(rsq21);
273 rinv22 = gmx_invsqrt(rsq22)gmx_software_invsqrt(rsq22);
274 rinv23 = gmx_invsqrt(rsq23)gmx_software_invsqrt(rsq23);
275 rinv31 = gmx_invsqrt(rsq31)gmx_software_invsqrt(rsq31);
276 rinv32 = gmx_invsqrt(rsq32)gmx_software_invsqrt(rsq32);
277 rinv33 = gmx_invsqrt(rsq33)gmx_software_invsqrt(rsq33);
278
279 rinvsq00 = rinv00*rinv00;
280
281 /**************************
282 * CALCULATE INTERACTIONS *
283 **************************/
284
285 r00 = rsq00*rinv00;
286
287 /* BUCKINGHAM DISPERSION/REPULSION */
288 rinvsix = rinvsq00*rinvsq00*rinvsq00;
289 vvdw6 = c6_00*rinvsix;
290 br = cexp2_00*r00;
291 vvdwexp = cexp1_00*exp(-br);
292 vvdw = vvdwexp - vvdw6*(1.0/6.0);
293 fvdw = (br*vvdwexp-vvdw6)*rinvsq00;
294
295 /* Update potential sums from outer loop */
296 vvdwsum += vvdw;
297
298 fscal = fvdw;
299
300 /* Calculate temporary vectorial force */
301 tx = fscal*dx00;
302 ty = fscal*dy00;
303 tz = fscal*dz00;
304
305 /* Update vectorial force */
306 fix0 += tx;
307 fiy0 += ty;
308 fiz0 += tz;
309 f[j_coord_offset+DIM3*0+XX0] -= tx;
310 f[j_coord_offset+DIM3*0+YY1] -= ty;
311 f[j_coord_offset+DIM3*0+ZZ2] -= tz;
312
313 /**************************
314 * CALCULATE INTERACTIONS *
315 **************************/
316
317 r11 = rsq11*rinv11;
318
319 /* Calculate table index by multiplying r with table scale and truncate to integer */
320 rt = r11*vftabscale;
321 vfitab = rt;
322 vfeps = rt-vfitab;
323 vfitab = 1*4*vfitab;
324
325 /* CUBIC SPLINE TABLE ELECTROSTATICS */
326 Y = vftab[vfitab];
327 F = vftab[vfitab+1];
328 Geps = vfeps*vftab[vfitab+2];
329 Heps2 = vfeps*vfeps*vftab[vfitab+3];
330 Fp = F+Geps+Heps2;
331 VV = Y+vfeps*Fp;
332 velec = qq11*VV;
333 FF = Fp+Geps+2.0*Heps2;
334 felec = -qq11*FF*vftabscale*rinv11;
335
336 /* Update potential sums from outer loop */
337 velecsum += velec;
338
339 fscal = felec;
340
341 /* Calculate temporary vectorial force */
342 tx = fscal*dx11;
343 ty = fscal*dy11;
344 tz = fscal*dz11;
345
346 /* Update vectorial force */
347 fix1 += tx;
348 fiy1 += ty;
349 fiz1 += tz;
350 f[j_coord_offset+DIM3*1+XX0] -= tx;
351 f[j_coord_offset+DIM3*1+YY1] -= ty;
352 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
353
354 /**************************
355 * CALCULATE INTERACTIONS *
356 **************************/
357
358 r12 = rsq12*rinv12;
359
360 /* Calculate table index by multiplying r with table scale and truncate to integer */
361 rt = r12*vftabscale;
362 vfitab = rt;
363 vfeps = rt-vfitab;
364 vfitab = 1*4*vfitab;
365
366 /* CUBIC SPLINE TABLE ELECTROSTATICS */
367 Y = vftab[vfitab];
368 F = vftab[vfitab+1];
369 Geps = vfeps*vftab[vfitab+2];
370 Heps2 = vfeps*vfeps*vftab[vfitab+3];
371 Fp = F+Geps+Heps2;
372 VV = Y+vfeps*Fp;
373 velec = qq12*VV;
374 FF = Fp+Geps+2.0*Heps2;
375 felec = -qq12*FF*vftabscale*rinv12;
376
377 /* Update potential sums from outer loop */
378 velecsum += velec;
379
380 fscal = felec;
381
382 /* Calculate temporary vectorial force */
383 tx = fscal*dx12;
384 ty = fscal*dy12;
385 tz = fscal*dz12;
386
387 /* Update vectorial force */
388 fix1 += tx;
389 fiy1 += ty;
390 fiz1 += tz;
391 f[j_coord_offset+DIM3*2+XX0] -= tx;
392 f[j_coord_offset+DIM3*2+YY1] -= ty;
393 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
394
395 /**************************
396 * CALCULATE INTERACTIONS *
397 **************************/
398
399 r13 = rsq13*rinv13;
400
401 /* Calculate table index by multiplying r with table scale and truncate to integer */
402 rt = r13*vftabscale;
403 vfitab = rt;
404 vfeps = rt-vfitab;
405 vfitab = 1*4*vfitab;
406
407 /* CUBIC SPLINE TABLE ELECTROSTATICS */
408 Y = vftab[vfitab];
409 F = vftab[vfitab+1];
410 Geps = vfeps*vftab[vfitab+2];
411 Heps2 = vfeps*vfeps*vftab[vfitab+3];
412 Fp = F+Geps+Heps2;
413 VV = Y+vfeps*Fp;
414 velec = qq13*VV;
415 FF = Fp+Geps+2.0*Heps2;
416 felec = -qq13*FF*vftabscale*rinv13;
417
418 /* Update potential sums from outer loop */
419 velecsum += velec;
420
421 fscal = felec;
422
423 /* Calculate temporary vectorial force */
424 tx = fscal*dx13;
425 ty = fscal*dy13;
426 tz = fscal*dz13;
427
428 /* Update vectorial force */
429 fix1 += tx;
430 fiy1 += ty;
431 fiz1 += tz;
432 f[j_coord_offset+DIM3*3+XX0] -= tx;
433 f[j_coord_offset+DIM3*3+YY1] -= ty;
434 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
435
436 /**************************
437 * CALCULATE INTERACTIONS *
438 **************************/
439
440 r21 = rsq21*rinv21;
441
442 /* Calculate table index by multiplying r with table scale and truncate to integer */
443 rt = r21*vftabscale;
444 vfitab = rt;
445 vfeps = rt-vfitab;
446 vfitab = 1*4*vfitab;
447
448 /* CUBIC SPLINE TABLE ELECTROSTATICS */
449 Y = vftab[vfitab];
450 F = vftab[vfitab+1];
451 Geps = vfeps*vftab[vfitab+2];
452 Heps2 = vfeps*vfeps*vftab[vfitab+3];
453 Fp = F+Geps+Heps2;
454 VV = Y+vfeps*Fp;
455 velec = qq21*VV;
456 FF = Fp+Geps+2.0*Heps2;
457 felec = -qq21*FF*vftabscale*rinv21;
458
459 /* Update potential sums from outer loop */
460 velecsum += velec;
461
462 fscal = felec;
463
464 /* Calculate temporary vectorial force */
465 tx = fscal*dx21;
466 ty = fscal*dy21;
467 tz = fscal*dz21;
468
469 /* Update vectorial force */
470 fix2 += tx;
471 fiy2 += ty;
472 fiz2 += tz;
473 f[j_coord_offset+DIM3*1+XX0] -= tx;
474 f[j_coord_offset+DIM3*1+YY1] -= ty;
475 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
476
477 /**************************
478 * CALCULATE INTERACTIONS *
479 **************************/
480
481 r22 = rsq22*rinv22;
482
483 /* Calculate table index by multiplying r with table scale and truncate to integer */
484 rt = r22*vftabscale;
485 vfitab = rt;
486 vfeps = rt-vfitab;
487 vfitab = 1*4*vfitab;
488
489 /* CUBIC SPLINE TABLE ELECTROSTATICS */
490 Y = vftab[vfitab];
491 F = vftab[vfitab+1];
492 Geps = vfeps*vftab[vfitab+2];
493 Heps2 = vfeps*vfeps*vftab[vfitab+3];
494 Fp = F+Geps+Heps2;
495 VV = Y+vfeps*Fp;
496 velec = qq22*VV;
497 FF = Fp+Geps+2.0*Heps2;
498 felec = -qq22*FF*vftabscale*rinv22;
499
500 /* Update potential sums from outer loop */
501 velecsum += velec;
502
503 fscal = felec;
504
505 /* Calculate temporary vectorial force */
506 tx = fscal*dx22;
507 ty = fscal*dy22;
508 tz = fscal*dz22;
509
510 /* Update vectorial force */
511 fix2 += tx;
512 fiy2 += ty;
513 fiz2 += tz;
514 f[j_coord_offset+DIM3*2+XX0] -= tx;
515 f[j_coord_offset+DIM3*2+YY1] -= ty;
516 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
517
518 /**************************
519 * CALCULATE INTERACTIONS *
520 **************************/
521
522 r23 = rsq23*rinv23;
523
524 /* Calculate table index by multiplying r with table scale and truncate to integer */
525 rt = r23*vftabscale;
526 vfitab = rt;
527 vfeps = rt-vfitab;
528 vfitab = 1*4*vfitab;
529
530 /* CUBIC SPLINE TABLE ELECTROSTATICS */
531 Y = vftab[vfitab];
532 F = vftab[vfitab+1];
533 Geps = vfeps*vftab[vfitab+2];
534 Heps2 = vfeps*vfeps*vftab[vfitab+3];
535 Fp = F+Geps+Heps2;
536 VV = Y+vfeps*Fp;
537 velec = qq23*VV;
538 FF = Fp+Geps+2.0*Heps2;
539 felec = -qq23*FF*vftabscale*rinv23;
540
541 /* Update potential sums from outer loop */
542 velecsum += velec;
543
544 fscal = felec;
545
546 /* Calculate temporary vectorial force */
547 tx = fscal*dx23;
548 ty = fscal*dy23;
549 tz = fscal*dz23;
550
551 /* Update vectorial force */
552 fix2 += tx;
553 fiy2 += ty;
554 fiz2 += tz;
555 f[j_coord_offset+DIM3*3+XX0] -= tx;
556 f[j_coord_offset+DIM3*3+YY1] -= ty;
557 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
558
559 /**************************
560 * CALCULATE INTERACTIONS *
561 **************************/
562
563 r31 = rsq31*rinv31;
564
565 /* Calculate table index by multiplying r with table scale and truncate to integer */
566 rt = r31*vftabscale;
567 vfitab = rt;
568 vfeps = rt-vfitab;
569 vfitab = 1*4*vfitab;
570
571 /* CUBIC SPLINE TABLE ELECTROSTATICS */
572 Y = vftab[vfitab];
573 F = vftab[vfitab+1];
574 Geps = vfeps*vftab[vfitab+2];
575 Heps2 = vfeps*vfeps*vftab[vfitab+3];
576 Fp = F+Geps+Heps2;
577 VV = Y+vfeps*Fp;
578 velec = qq31*VV;
579 FF = Fp+Geps+2.0*Heps2;
580 felec = -qq31*FF*vftabscale*rinv31;
581
582 /* Update potential sums from outer loop */
583 velecsum += velec;
584
585 fscal = felec;
586
587 /* Calculate temporary vectorial force */
588 tx = fscal*dx31;
589 ty = fscal*dy31;
590 tz = fscal*dz31;
591
592 /* Update vectorial force */
593 fix3 += tx;
594 fiy3 += ty;
595 fiz3 += tz;
596 f[j_coord_offset+DIM3*1+XX0] -= tx;
597 f[j_coord_offset+DIM3*1+YY1] -= ty;
598 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
599
600 /**************************
601 * CALCULATE INTERACTIONS *
602 **************************/
603
604 r32 = rsq32*rinv32;
605
606 /* Calculate table index by multiplying r with table scale and truncate to integer */
607 rt = r32*vftabscale;
608 vfitab = rt;
609 vfeps = rt-vfitab;
610 vfitab = 1*4*vfitab;
611
612 /* CUBIC SPLINE TABLE ELECTROSTATICS */
613 Y = vftab[vfitab];
614 F = vftab[vfitab+1];
615 Geps = vfeps*vftab[vfitab+2];
616 Heps2 = vfeps*vfeps*vftab[vfitab+3];
617 Fp = F+Geps+Heps2;
618 VV = Y+vfeps*Fp;
619 velec = qq32*VV;
620 FF = Fp+Geps+2.0*Heps2;
621 felec = -qq32*FF*vftabscale*rinv32;
622
623 /* Update potential sums from outer loop */
624 velecsum += velec;
625
626 fscal = felec;
627
628 /* Calculate temporary vectorial force */
629 tx = fscal*dx32;
630 ty = fscal*dy32;
631 tz = fscal*dz32;
632
633 /* Update vectorial force */
634 fix3 += tx;
635 fiy3 += ty;
636 fiz3 += tz;
637 f[j_coord_offset+DIM3*2+XX0] -= tx;
638 f[j_coord_offset+DIM3*2+YY1] -= ty;
639 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
640
641 /**************************
642 * CALCULATE INTERACTIONS *
643 **************************/
644
645 r33 = rsq33*rinv33;
646
647 /* Calculate table index by multiplying r with table scale and truncate to integer */
648 rt = r33*vftabscale;
649 vfitab = rt;
650 vfeps = rt-vfitab;
651 vfitab = 1*4*vfitab;
652
653 /* CUBIC SPLINE TABLE ELECTROSTATICS */
654 Y = vftab[vfitab];
655 F = vftab[vfitab+1];
656 Geps = vfeps*vftab[vfitab+2];
657 Heps2 = vfeps*vfeps*vftab[vfitab+3];
658 Fp = F+Geps+Heps2;
659 VV = Y+vfeps*Fp;
660 velec = qq33*VV;
661 FF = Fp+Geps+2.0*Heps2;
662 felec = -qq33*FF*vftabscale*rinv33;
663
664 /* Update potential sums from outer loop */
665 velecsum += velec;
666
667 fscal = felec;
668
669 /* Calculate temporary vectorial force */
670 tx = fscal*dx33;
671 ty = fscal*dy33;
672 tz = fscal*dz33;
673
674 /* Update vectorial force */
675 fix3 += tx;
676 fiy3 += ty;
677 fiz3 += tz;
678 f[j_coord_offset+DIM3*3+XX0] -= tx;
679 f[j_coord_offset+DIM3*3+YY1] -= ty;
680 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
681
682 /* Inner loop uses 430 flops */
683 }
684 /* End of innermost loop */
685
686 tx = ty = tz = 0;
687 f[i_coord_offset+DIM3*0+XX0] += fix0;
688 f[i_coord_offset+DIM3*0+YY1] += fiy0;
689 f[i_coord_offset+DIM3*0+ZZ2] += fiz0;
690 tx += fix0;
691 ty += fiy0;
692 tz += fiz0;
693 f[i_coord_offset+DIM3*1+XX0] += fix1;
694 f[i_coord_offset+DIM3*1+YY1] += fiy1;
695 f[i_coord_offset+DIM3*1+ZZ2] += fiz1;
696 tx += fix1;
697 ty += fiy1;
698 tz += fiz1;
699 f[i_coord_offset+DIM3*2+XX0] += fix2;
700 f[i_coord_offset+DIM3*2+YY1] += fiy2;
701 f[i_coord_offset+DIM3*2+ZZ2] += fiz2;
702 tx += fix2;
703 ty += fiy2;
704 tz += fiz2;
705 f[i_coord_offset+DIM3*3+XX0] += fix3;
706 f[i_coord_offset+DIM3*3+YY1] += fiy3;
707 f[i_coord_offset+DIM3*3+ZZ2] += fiz3;
708 tx += fix3;
709 ty += fiy3;
710 tz += fiz3;
711 fshift[i_shift_offset+XX0] += tx;
712 fshift[i_shift_offset+YY1] += ty;
713 fshift[i_shift_offset+ZZ2] += tz;
714
715 ggid = gid[iidx];
716 /* Update potential energies */
717 kernel_data->energygrp_elec[ggid] += velecsum;
718 kernel_data->energygrp_vdw[ggid] += vvdwsum;
719
720 /* Increment number of inner iterations */
721 inneriter += j_index_end - j_index_start;
722
723 /* Outer loop uses 41 flops */
724 }
725
726 /* Increment number of outer iterations */
727 outeriter += nri;
728
729 /* Update outer/inner flops */
730
731 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_VDW_W4W4_VF,outeriter*41 + inneriter*430)(nrnb)->n[eNR_NBKERNEL_ELEC_VDW_W4W4_VF] += outeriter*41 +
inneriter*430
;
732}
733/*
734 * Gromacs nonbonded kernel: nb_kernel_ElecCSTab_VdwBham_GeomW4W4_F_c
735 * Electrostatics interaction: CubicSplineTable
736 * VdW interaction: Buckingham
737 * Geometry: Water4-Water4
738 * Calculate force/pot: Force
739 */
740void
741nb_kernel_ElecCSTab_VdwBham_GeomW4W4_F_c
742 (t_nblist * gmx_restrict__restrict nlist,
743 rvec * gmx_restrict__restrict xx,
744 rvec * gmx_restrict__restrict ff,
745 t_forcerec * gmx_restrict__restrict fr,
746 t_mdatoms * gmx_restrict__restrict mdatoms,
747 nb_kernel_data_t gmx_unused__attribute__ ((unused)) * gmx_restrict__restrict kernel_data,
748 t_nrnb * gmx_restrict__restrict nrnb)
749{
750 int i_shift_offset,i_coord_offset,j_coord_offset;
751 int j_index_start,j_index_end;
752 int nri,inr,ggid,iidx,jidx,jnr,outeriter,inneriter;
753 real shX,shY,shZ,tx,ty,tz,fscal,rcutoff,rcutoff2;
754 int *iinr,*jindex,*jjnr,*shiftidx,*gid;
755 real *shiftvec,*fshift,*x,*f;
756 int vdwioffset0;
757 real ix0,iy0,iz0,fix0,fiy0,fiz0,iq0,isai0;
758 int vdwioffset1;
759 real ix1,iy1,iz1,fix1,fiy1,fiz1,iq1,isai1;
760 int vdwioffset2;
761 real ix2,iy2,iz2,fix2,fiy2,fiz2,iq2,isai2;
762 int vdwioffset3;
763 real ix3,iy3,iz3,fix3,fiy3,fiz3,iq3,isai3;
764 int vdwjidx0;
765 real jx0,jy0,jz0,fjx0,fjy0,fjz0,jq0,isaj0;
766 int vdwjidx1;
767 real jx1,jy1,jz1,fjx1,fjy1,fjz1,jq1,isaj1;
768 int vdwjidx2;
769 real jx2,jy2,jz2,fjx2,fjy2,fjz2,jq2,isaj2;
770 int vdwjidx3;
771 real jx3,jy3,jz3,fjx3,fjy3,fjz3,jq3,isaj3;
772 real dx00,dy00,dz00,rsq00,rinv00,rinvsq00,r00,qq00,c6_00,c12_00,cexp1_00,cexp2_00;
773 real dx11,dy11,dz11,rsq11,rinv11,rinvsq11,r11,qq11,c6_11,c12_11,cexp1_11,cexp2_11;
774 real dx12,dy12,dz12,rsq12,rinv12,rinvsq12,r12,qq12,c6_12,c12_12,cexp1_12,cexp2_12;
775 real dx13,dy13,dz13,rsq13,rinv13,rinvsq13,r13,qq13,c6_13,c12_13,cexp1_13,cexp2_13;
776 real dx21,dy21,dz21,rsq21,rinv21,rinvsq21,r21,qq21,c6_21,c12_21,cexp1_21,cexp2_21;
777 real dx22,dy22,dz22,rsq22,rinv22,rinvsq22,r22,qq22,c6_22,c12_22,cexp1_22,cexp2_22;
778 real dx23,dy23,dz23,rsq23,rinv23,rinvsq23,r23,qq23,c6_23,c12_23,cexp1_23,cexp2_23;
779 real dx31,dy31,dz31,rsq31,rinv31,rinvsq31,r31,qq31,c6_31,c12_31,cexp1_31,cexp2_31;
780 real dx32,dy32,dz32,rsq32,rinv32,rinvsq32,r32,qq32,c6_32,c12_32,cexp1_32,cexp2_32;
781 real dx33,dy33,dz33,rsq33,rinv33,rinvsq33,r33,qq33,c6_33,c12_33,cexp1_33,cexp2_33;
782 real velec,felec,velecsum,facel,crf,krf,krf2;
783 real *charge;
784 int nvdwtype;
785 real rinvsix,rvdw,vvdw,vvdw6,vvdw12,fvdw,fvdw6,fvdw12,vvdwsum,br,vvdwexp,sh_vdw_invrcut6;
786 int *vdwtype;
787 real *vdwparam;
788 int vfitab;
789 real rt,vfeps,vftabscale,Y,F,Geps,Heps2,Fp,VV,FF;
790 real *vftab;
791
792 x = xx[0];
793 f = ff[0];
794
795 nri = nlist->nri;
796 iinr = nlist->iinr;
797 jindex = nlist->jindex;
798 jjnr = nlist->jjnr;
799 shiftidx = nlist->shift;
800 gid = nlist->gid;
Value stored to 'gid' is never read
801 shiftvec = fr->shift_vec[0];
802 fshift = fr->fshift[0];
803 facel = fr->epsfac;
804 charge = mdatoms->chargeA;
805 nvdwtype = fr->ntype;
806 vdwparam = fr->nbfp;
807 vdwtype = mdatoms->typeA;
808
809 vftab = kernel_data->table_elec->data;
810 vftabscale = kernel_data->table_elec->scale;
811
812 /* Setup water-specific parameters */
813 inr = nlist->iinr[0];
814 iq1 = facel*charge[inr+1];
815 iq2 = facel*charge[inr+2];
816 iq3 = facel*charge[inr+3];
817 vdwioffset0 = 3*nvdwtype*vdwtype[inr+0];
818
819 jq1 = charge[inr+1];
820 jq2 = charge[inr+2];
821 jq3 = charge[inr+3];
822 vdwjidx0 = 3*vdwtype[inr+0];
823 c6_00 = vdwparam[vdwioffset0+vdwjidx0];
824 cexp1_00 = vdwparam[vdwioffset0+vdwjidx0+1];
825 cexp2_00 = vdwparam[vdwioffset0+vdwjidx0+2];
826 qq11 = iq1*jq1;
827 qq12 = iq1*jq2;
828 qq13 = iq1*jq3;
829 qq21 = iq2*jq1;
830 qq22 = iq2*jq2;
831 qq23 = iq2*jq3;
832 qq31 = iq3*jq1;
833 qq32 = iq3*jq2;
834 qq33 = iq3*jq3;
835
836 outeriter = 0;
837 inneriter = 0;
838
839 /* Start outer loop over neighborlists */
840 for(iidx=0; iidx<nri; iidx++)
841 {
842 /* Load shift vector for this list */
843 i_shift_offset = DIM3*shiftidx[iidx];
844 shX = shiftvec[i_shift_offset+XX0];
845 shY = shiftvec[i_shift_offset+YY1];
846 shZ = shiftvec[i_shift_offset+ZZ2];
847
848 /* Load limits for loop over neighbors */
849 j_index_start = jindex[iidx];
850 j_index_end = jindex[iidx+1];
851
852 /* Get outer coordinate index */
853 inr = iinr[iidx];
854 i_coord_offset = DIM3*inr;
855
856 /* Load i particle coords and add shift vector */
857 ix0 = shX + x[i_coord_offset+DIM3*0+XX0];
858 iy0 = shY + x[i_coord_offset+DIM3*0+YY1];
859 iz0 = shZ + x[i_coord_offset+DIM3*0+ZZ2];
860 ix1 = shX + x[i_coord_offset+DIM3*1+XX0];
861 iy1 = shY + x[i_coord_offset+DIM3*1+YY1];
862 iz1 = shZ + x[i_coord_offset+DIM3*1+ZZ2];
863 ix2 = shX + x[i_coord_offset+DIM3*2+XX0];
864 iy2 = shY + x[i_coord_offset+DIM3*2+YY1];
865 iz2 = shZ + x[i_coord_offset+DIM3*2+ZZ2];
866 ix3 = shX + x[i_coord_offset+DIM3*3+XX0];
867 iy3 = shY + x[i_coord_offset+DIM3*3+YY1];
868 iz3 = shZ + x[i_coord_offset+DIM3*3+ZZ2];
869
870 fix0 = 0.0;
871 fiy0 = 0.0;
872 fiz0 = 0.0;
873 fix1 = 0.0;
874 fiy1 = 0.0;
875 fiz1 = 0.0;
876 fix2 = 0.0;
877 fiy2 = 0.0;
878 fiz2 = 0.0;
879 fix3 = 0.0;
880 fiy3 = 0.0;
881 fiz3 = 0.0;
882
883 /* Start inner kernel loop */
884 for(jidx=j_index_start; jidx<j_index_end; jidx++)
885 {
886 /* Get j neighbor index, and coordinate index */
887 jnr = jjnr[jidx];
888 j_coord_offset = DIM3*jnr;
889
890 /* load j atom coordinates */
891 jx0 = x[j_coord_offset+DIM3*0+XX0];
892 jy0 = x[j_coord_offset+DIM3*0+YY1];
893 jz0 = x[j_coord_offset+DIM3*0+ZZ2];
894 jx1 = x[j_coord_offset+DIM3*1+XX0];
895 jy1 = x[j_coord_offset+DIM3*1+YY1];
896 jz1 = x[j_coord_offset+DIM3*1+ZZ2];
897 jx2 = x[j_coord_offset+DIM3*2+XX0];
898 jy2 = x[j_coord_offset+DIM3*2+YY1];
899 jz2 = x[j_coord_offset+DIM3*2+ZZ2];
900 jx3 = x[j_coord_offset+DIM3*3+XX0];
901 jy3 = x[j_coord_offset+DIM3*3+YY1];
902 jz3 = x[j_coord_offset+DIM3*3+ZZ2];
903
904 /* Calculate displacement vector */
905 dx00 = ix0 - jx0;
906 dy00 = iy0 - jy0;
907 dz00 = iz0 - jz0;
908 dx11 = ix1 - jx1;
909 dy11 = iy1 - jy1;
910 dz11 = iz1 - jz1;
911 dx12 = ix1 - jx2;
912 dy12 = iy1 - jy2;
913 dz12 = iz1 - jz2;
914 dx13 = ix1 - jx3;
915 dy13 = iy1 - jy3;
916 dz13 = iz1 - jz3;
917 dx21 = ix2 - jx1;
918 dy21 = iy2 - jy1;
919 dz21 = iz2 - jz1;
920 dx22 = ix2 - jx2;
921 dy22 = iy2 - jy2;
922 dz22 = iz2 - jz2;
923 dx23 = ix2 - jx3;
924 dy23 = iy2 - jy3;
925 dz23 = iz2 - jz3;
926 dx31 = ix3 - jx1;
927 dy31 = iy3 - jy1;
928 dz31 = iz3 - jz1;
929 dx32 = ix3 - jx2;
930 dy32 = iy3 - jy2;
931 dz32 = iz3 - jz2;
932 dx33 = ix3 - jx3;
933 dy33 = iy3 - jy3;
934 dz33 = iz3 - jz3;
935
936 /* Calculate squared distance and things based on it */
937 rsq00 = dx00*dx00+dy00*dy00+dz00*dz00;
938 rsq11 = dx11*dx11+dy11*dy11+dz11*dz11;
939 rsq12 = dx12*dx12+dy12*dy12+dz12*dz12;
940 rsq13 = dx13*dx13+dy13*dy13+dz13*dz13;
941 rsq21 = dx21*dx21+dy21*dy21+dz21*dz21;
942 rsq22 = dx22*dx22+dy22*dy22+dz22*dz22;
943 rsq23 = dx23*dx23+dy23*dy23+dz23*dz23;
944 rsq31 = dx31*dx31+dy31*dy31+dz31*dz31;
945 rsq32 = dx32*dx32+dy32*dy32+dz32*dz32;
946 rsq33 = dx33*dx33+dy33*dy33+dz33*dz33;
947
948 rinv00 = gmx_invsqrt(rsq00)gmx_software_invsqrt(rsq00);
949 rinv11 = gmx_invsqrt(rsq11)gmx_software_invsqrt(rsq11);
950 rinv12 = gmx_invsqrt(rsq12)gmx_software_invsqrt(rsq12);
951 rinv13 = gmx_invsqrt(rsq13)gmx_software_invsqrt(rsq13);
952 rinv21 = gmx_invsqrt(rsq21)gmx_software_invsqrt(rsq21);
953 rinv22 = gmx_invsqrt(rsq22)gmx_software_invsqrt(rsq22);
954 rinv23 = gmx_invsqrt(rsq23)gmx_software_invsqrt(rsq23);
955 rinv31 = gmx_invsqrt(rsq31)gmx_software_invsqrt(rsq31);
956 rinv32 = gmx_invsqrt(rsq32)gmx_software_invsqrt(rsq32);
957 rinv33 = gmx_invsqrt(rsq33)gmx_software_invsqrt(rsq33);
958
959 rinvsq00 = rinv00*rinv00;
960
961 /**************************
962 * CALCULATE INTERACTIONS *
963 **************************/
964
965 r00 = rsq00*rinv00;
966
967 /* BUCKINGHAM DISPERSION/REPULSION */
968 rinvsix = rinvsq00*rinvsq00*rinvsq00;
969 vvdw6 = c6_00*rinvsix;
970 br = cexp2_00*r00;
971 vvdwexp = cexp1_00*exp(-br);
972 fvdw = (br*vvdwexp-vvdw6)*rinvsq00;
973
974 fscal = fvdw;
975
976 /* Calculate temporary vectorial force */
977 tx = fscal*dx00;
978 ty = fscal*dy00;
979 tz = fscal*dz00;
980
981 /* Update vectorial force */
982 fix0 += tx;
983 fiy0 += ty;
984 fiz0 += tz;
985 f[j_coord_offset+DIM3*0+XX0] -= tx;
986 f[j_coord_offset+DIM3*0+YY1] -= ty;
987 f[j_coord_offset+DIM3*0+ZZ2] -= tz;
988
989 /**************************
990 * CALCULATE INTERACTIONS *
991 **************************/
992
993 r11 = rsq11*rinv11;
994
995 /* Calculate table index by multiplying r with table scale and truncate to integer */
996 rt = r11*vftabscale;
997 vfitab = rt;
998 vfeps = rt-vfitab;
999 vfitab = 1*4*vfitab;
1000
1001 /* CUBIC SPLINE TABLE ELECTROSTATICS */
1002 F = vftab[vfitab+1];
1003 Geps = vfeps*vftab[vfitab+2];
1004 Heps2 = vfeps*vfeps*vftab[vfitab+3];
1005 Fp = F+Geps+Heps2;
1006 FF = Fp+Geps+2.0*Heps2;
1007 felec = -qq11*FF*vftabscale*rinv11;
1008
1009 fscal = felec;
1010
1011 /* Calculate temporary vectorial force */
1012 tx = fscal*dx11;
1013 ty = fscal*dy11;
1014 tz = fscal*dz11;
1015
1016 /* Update vectorial force */
1017 fix1 += tx;
1018 fiy1 += ty;
1019 fiz1 += tz;
1020 f[j_coord_offset+DIM3*1+XX0] -= tx;
1021 f[j_coord_offset+DIM3*1+YY1] -= ty;
1022 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
1023
1024 /**************************
1025 * CALCULATE INTERACTIONS *
1026 **************************/
1027
1028 r12 = rsq12*rinv12;
1029
1030 /* Calculate table index by multiplying r with table scale and truncate to integer */
1031 rt = r12*vftabscale;
1032 vfitab = rt;
1033 vfeps = rt-vfitab;
1034 vfitab = 1*4*vfitab;
1035
1036 /* CUBIC SPLINE TABLE ELECTROSTATICS */
1037 F = vftab[vfitab+1];
1038 Geps = vfeps*vftab[vfitab+2];
1039 Heps2 = vfeps*vfeps*vftab[vfitab+3];
1040 Fp = F+Geps+Heps2;
1041 FF = Fp+Geps+2.0*Heps2;
1042 felec = -qq12*FF*vftabscale*rinv12;
1043
1044 fscal = felec;
1045
1046 /* Calculate temporary vectorial force */
1047 tx = fscal*dx12;
1048 ty = fscal*dy12;
1049 tz = fscal*dz12;
1050
1051 /* Update vectorial force */
1052 fix1 += tx;
1053 fiy1 += ty;
1054 fiz1 += tz;
1055 f[j_coord_offset+DIM3*2+XX0] -= tx;
1056 f[j_coord_offset+DIM3*2+YY1] -= ty;
1057 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
1058
1059 /**************************
1060 * CALCULATE INTERACTIONS *
1061 **************************/
1062
1063 r13 = rsq13*rinv13;
1064
1065 /* Calculate table index by multiplying r with table scale and truncate to integer */
1066 rt = r13*vftabscale;
1067 vfitab = rt;
1068 vfeps = rt-vfitab;
1069 vfitab = 1*4*vfitab;
1070
1071 /* CUBIC SPLINE TABLE ELECTROSTATICS */
1072 F = vftab[vfitab+1];
1073 Geps = vfeps*vftab[vfitab+2];
1074 Heps2 = vfeps*vfeps*vftab[vfitab+3];
1075 Fp = F+Geps+Heps2;
1076 FF = Fp+Geps+2.0*Heps2;
1077 felec = -qq13*FF*vftabscale*rinv13;
1078
1079 fscal = felec;
1080
1081 /* Calculate temporary vectorial force */
1082 tx = fscal*dx13;
1083 ty = fscal*dy13;
1084 tz = fscal*dz13;
1085
1086 /* Update vectorial force */
1087 fix1 += tx;
1088 fiy1 += ty;
1089 fiz1 += tz;
1090 f[j_coord_offset+DIM3*3+XX0] -= tx;
1091 f[j_coord_offset+DIM3*3+YY1] -= ty;
1092 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
1093
1094 /**************************
1095 * CALCULATE INTERACTIONS *
1096 **************************/
1097
1098 r21 = rsq21*rinv21;
1099
1100 /* Calculate table index by multiplying r with table scale and truncate to integer */
1101 rt = r21*vftabscale;
1102 vfitab = rt;
1103 vfeps = rt-vfitab;
1104 vfitab = 1*4*vfitab;
1105
1106 /* CUBIC SPLINE TABLE ELECTROSTATICS */
1107 F = vftab[vfitab+1];
1108 Geps = vfeps*vftab[vfitab+2];
1109 Heps2 = vfeps*vfeps*vftab[vfitab+3];
1110 Fp = F+Geps+Heps2;
1111 FF = Fp+Geps+2.0*Heps2;
1112 felec = -qq21*FF*vftabscale*rinv21;
1113
1114 fscal = felec;
1115
1116 /* Calculate temporary vectorial force */
1117 tx = fscal*dx21;
1118 ty = fscal*dy21;
1119 tz = fscal*dz21;
1120
1121 /* Update vectorial force */
1122 fix2 += tx;
1123 fiy2 += ty;
1124 fiz2 += tz;
1125 f[j_coord_offset+DIM3*1+XX0] -= tx;
1126 f[j_coord_offset+DIM3*1+YY1] -= ty;
1127 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
1128
1129 /**************************
1130 * CALCULATE INTERACTIONS *
1131 **************************/
1132
1133 r22 = rsq22*rinv22;
1134
1135 /* Calculate table index by multiplying r with table scale and truncate to integer */
1136 rt = r22*vftabscale;
1137 vfitab = rt;
1138 vfeps = rt-vfitab;
1139 vfitab = 1*4*vfitab;
1140
1141 /* CUBIC SPLINE TABLE ELECTROSTATICS */
1142 F = vftab[vfitab+1];
1143 Geps = vfeps*vftab[vfitab+2];
1144 Heps2 = vfeps*vfeps*vftab[vfitab+3];
1145 Fp = F+Geps+Heps2;
1146 FF = Fp+Geps+2.0*Heps2;
1147 felec = -qq22*FF*vftabscale*rinv22;
1148
1149 fscal = felec;
1150
1151 /* Calculate temporary vectorial force */
1152 tx = fscal*dx22;
1153 ty = fscal*dy22;
1154 tz = fscal*dz22;
1155
1156 /* Update vectorial force */
1157 fix2 += tx;
1158 fiy2 += ty;
1159 fiz2 += tz;
1160 f[j_coord_offset+DIM3*2+XX0] -= tx;
1161 f[j_coord_offset+DIM3*2+YY1] -= ty;
1162 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
1163
1164 /**************************
1165 * CALCULATE INTERACTIONS *
1166 **************************/
1167
1168 r23 = rsq23*rinv23;
1169
1170 /* Calculate table index by multiplying r with table scale and truncate to integer */
1171 rt = r23*vftabscale;
1172 vfitab = rt;
1173 vfeps = rt-vfitab;
1174 vfitab = 1*4*vfitab;
1175
1176 /* CUBIC SPLINE TABLE ELECTROSTATICS */
1177 F = vftab[vfitab+1];
1178 Geps = vfeps*vftab[vfitab+2];
1179 Heps2 = vfeps*vfeps*vftab[vfitab+3];
1180 Fp = F+Geps+Heps2;
1181 FF = Fp+Geps+2.0*Heps2;
1182 felec = -qq23*FF*vftabscale*rinv23;
1183
1184 fscal = felec;
1185
1186 /* Calculate temporary vectorial force */
1187 tx = fscal*dx23;
1188 ty = fscal*dy23;
1189 tz = fscal*dz23;
1190
1191 /* Update vectorial force */
1192 fix2 += tx;
1193 fiy2 += ty;
1194 fiz2 += tz;
1195 f[j_coord_offset+DIM3*3+XX0] -= tx;
1196 f[j_coord_offset+DIM3*3+YY1] -= ty;
1197 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
1198
1199 /**************************
1200 * CALCULATE INTERACTIONS *
1201 **************************/
1202
1203 r31 = rsq31*rinv31;
1204
1205 /* Calculate table index by multiplying r with table scale and truncate to integer */
1206 rt = r31*vftabscale;
1207 vfitab = rt;
1208 vfeps = rt-vfitab;
1209 vfitab = 1*4*vfitab;
1210
1211 /* CUBIC SPLINE TABLE ELECTROSTATICS */
1212 F = vftab[vfitab+1];
1213 Geps = vfeps*vftab[vfitab+2];
1214 Heps2 = vfeps*vfeps*vftab[vfitab+3];
1215 Fp = F+Geps+Heps2;
1216 FF = Fp+Geps+2.0*Heps2;
1217 felec = -qq31*FF*vftabscale*rinv31;
1218
1219 fscal = felec;
1220
1221 /* Calculate temporary vectorial force */
1222 tx = fscal*dx31;
1223 ty = fscal*dy31;
1224 tz = fscal*dz31;
1225
1226 /* Update vectorial force */
1227 fix3 += tx;
1228 fiy3 += ty;
1229 fiz3 += tz;
1230 f[j_coord_offset+DIM3*1+XX0] -= tx;
1231 f[j_coord_offset+DIM3*1+YY1] -= ty;
1232 f[j_coord_offset+DIM3*1+ZZ2] -= tz;
1233
1234 /**************************
1235 * CALCULATE INTERACTIONS *
1236 **************************/
1237
1238 r32 = rsq32*rinv32;
1239
1240 /* Calculate table index by multiplying r with table scale and truncate to integer */
1241 rt = r32*vftabscale;
1242 vfitab = rt;
1243 vfeps = rt-vfitab;
1244 vfitab = 1*4*vfitab;
1245
1246 /* CUBIC SPLINE TABLE ELECTROSTATICS */
1247 F = vftab[vfitab+1];
1248 Geps = vfeps*vftab[vfitab+2];
1249 Heps2 = vfeps*vfeps*vftab[vfitab+3];
1250 Fp = F+Geps+Heps2;
1251 FF = Fp+Geps+2.0*Heps2;
1252 felec = -qq32*FF*vftabscale*rinv32;
1253
1254 fscal = felec;
1255
1256 /* Calculate temporary vectorial force */
1257 tx = fscal*dx32;
1258 ty = fscal*dy32;
1259 tz = fscal*dz32;
1260
1261 /* Update vectorial force */
1262 fix3 += tx;
1263 fiy3 += ty;
1264 fiz3 += tz;
1265 f[j_coord_offset+DIM3*2+XX0] -= tx;
1266 f[j_coord_offset+DIM3*2+YY1] -= ty;
1267 f[j_coord_offset+DIM3*2+ZZ2] -= tz;
1268
1269 /**************************
1270 * CALCULATE INTERACTIONS *
1271 **************************/
1272
1273 r33 = rsq33*rinv33;
1274
1275 /* Calculate table index by multiplying r with table scale and truncate to integer */
1276 rt = r33*vftabscale;
1277 vfitab = rt;
1278 vfeps = rt-vfitab;
1279 vfitab = 1*4*vfitab;
1280
1281 /* CUBIC SPLINE TABLE ELECTROSTATICS */
1282 F = vftab[vfitab+1];
1283 Geps = vfeps*vftab[vfitab+2];
1284 Heps2 = vfeps*vfeps*vftab[vfitab+3];
1285 Fp = F+Geps+Heps2;
1286 FF = Fp+Geps+2.0*Heps2;
1287 felec = -qq33*FF*vftabscale*rinv33;
1288
1289 fscal = felec;
1290
1291 /* Calculate temporary vectorial force */
1292 tx = fscal*dx33;
1293 ty = fscal*dy33;
1294 tz = fscal*dz33;
1295
1296 /* Update vectorial force */
1297 fix3 += tx;
1298 fiy3 += ty;
1299 fiz3 += tz;
1300 f[j_coord_offset+DIM3*3+XX0] -= tx;
1301 f[j_coord_offset+DIM3*3+YY1] -= ty;
1302 f[j_coord_offset+DIM3*3+ZZ2] -= tz;
1303
1304 /* Inner loop uses 391 flops */
1305 }
1306 /* End of innermost loop */
1307
1308 tx = ty = tz = 0;
1309 f[i_coord_offset+DIM3*0+XX0] += fix0;
1310 f[i_coord_offset+DIM3*0+YY1] += fiy0;
1311 f[i_coord_offset+DIM3*0+ZZ2] += fiz0;
1312 tx += fix0;
1313 ty += fiy0;
1314 tz += fiz0;
1315 f[i_coord_offset+DIM3*1+XX0] += fix1;
1316 f[i_coord_offset+DIM3*1+YY1] += fiy1;
1317 f[i_coord_offset+DIM3*1+ZZ2] += fiz1;
1318 tx += fix1;
1319 ty += fiy1;
1320 tz += fiz1;
1321 f[i_coord_offset+DIM3*2+XX0] += fix2;
1322 f[i_coord_offset+DIM3*2+YY1] += fiy2;
1323 f[i_coord_offset+DIM3*2+ZZ2] += fiz2;
1324 tx += fix2;
1325 ty += fiy2;
1326 tz += fiz2;
1327 f[i_coord_offset+DIM3*3+XX0] += fix3;
1328 f[i_coord_offset+DIM3*3+YY1] += fiy3;
1329 f[i_coord_offset+DIM3*3+ZZ2] += fiz3;
1330 tx += fix3;
1331 ty += fiy3;
1332 tz += fiz3;
1333 fshift[i_shift_offset+XX0] += tx;
1334 fshift[i_shift_offset+YY1] += ty;
1335 fshift[i_shift_offset+ZZ2] += tz;
1336
1337 /* Increment number of inner iterations */
1338 inneriter += j_index_end - j_index_start;
1339
1340 /* Outer loop uses 39 flops */
1341 }
1342
1343 /* Increment number of outer iterations */
1344 outeriter += nri;
1345
1346 /* Update outer/inner flops */
1347
1348 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_VDW_W4W4_F,outeriter*39 + inneriter*391)(nrnb)->n[eNR_NBKERNEL_ELEC_VDW_W4W4_F] += outeriter*39 + inneriter
*391
;
1349}