File: | gromacs/gmxlib/nonbonded/nb_kernel_c/nb_kernel_ElecEw_VdwLJ_GeomP1P1_c.c |
Location: | line 313, column 5 |
Description: | Value stored to 'ewtabhalfspace' is never read |
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 | * |
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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 |
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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_ElecEw_VdwLJ_GeomP1P1_VF_c |
51 | * Electrostatics interaction: Ewald |
52 | * VdW interaction: LennardJones |
53 | * Geometry: Particle-Particle |
54 | * Calculate force/pot: PotentialAndForce |
55 | */ |
56 | void |
57 | nb_kernel_ElecEw_VdwLJ_GeomP1P1_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 vdwjidx0; |
75 | real jx0,jy0,jz0,fjx0,fjy0,fjz0,jq0,isaj0; |
76 | real dx00,dy00,dz00,rsq00,rinv00,rinvsq00,r00,qq00,c6_00,c12_00,cexp1_00,cexp2_00; |
77 | real velec,felec,velecsum,facel,crf,krf,krf2; |
78 | real *charge; |
79 | int nvdwtype; |
80 | real rinvsix,rvdw,vvdw,vvdw6,vvdw12,fvdw,fvdw6,fvdw12,vvdwsum,br,vvdwexp,sh_vdw_invrcut6; |
81 | int *vdwtype; |
82 | real *vdwparam; |
83 | int ewitab; |
84 | real ewtabscale,eweps,sh_ewald,ewrt,ewtabhalfspace; |
85 | real *ewtab; |
86 | |
87 | x = xx[0]; |
88 | f = ff[0]; |
89 | |
90 | nri = nlist->nri; |
91 | iinr = nlist->iinr; |
92 | jindex = nlist->jindex; |
93 | jjnr = nlist->jjnr; |
94 | shiftidx = nlist->shift; |
95 | gid = nlist->gid; |
96 | shiftvec = fr->shift_vec[0]; |
97 | fshift = fr->fshift[0]; |
98 | facel = fr->epsfac; |
99 | charge = mdatoms->chargeA; |
100 | nvdwtype = fr->ntype; |
101 | vdwparam = fr->nbfp; |
102 | vdwtype = mdatoms->typeA; |
103 | |
104 | sh_ewald = fr->ic->sh_ewald; |
105 | ewtab = fr->ic->tabq_coul_FDV0; |
106 | ewtabscale = fr->ic->tabq_scale; |
107 | ewtabhalfspace = 0.5/ewtabscale; |
108 | |
109 | outeriter = 0; |
110 | inneriter = 0; |
111 | |
112 | /* Start outer loop over neighborlists */ |
113 | for(iidx=0; iidx<nri; iidx++) |
114 | { |
115 | /* Load shift vector for this list */ |
116 | i_shift_offset = DIM3*shiftidx[iidx]; |
117 | shX = shiftvec[i_shift_offset+XX0]; |
118 | shY = shiftvec[i_shift_offset+YY1]; |
119 | shZ = shiftvec[i_shift_offset+ZZ2]; |
120 | |
121 | /* Load limits for loop over neighbors */ |
122 | j_index_start = jindex[iidx]; |
123 | j_index_end = jindex[iidx+1]; |
124 | |
125 | /* Get outer coordinate index */ |
126 | inr = iinr[iidx]; |
127 | i_coord_offset = DIM3*inr; |
128 | |
129 | /* Load i particle coords and add shift vector */ |
130 | ix0 = shX + x[i_coord_offset+DIM3*0+XX0]; |
131 | iy0 = shY + x[i_coord_offset+DIM3*0+YY1]; |
132 | iz0 = shZ + x[i_coord_offset+DIM3*0+ZZ2]; |
133 | |
134 | fix0 = 0.0; |
135 | fiy0 = 0.0; |
136 | fiz0 = 0.0; |
137 | |
138 | /* Load parameters for i particles */ |
139 | iq0 = facel*charge[inr+0]; |
140 | vdwioffset0 = 2*nvdwtype*vdwtype[inr+0]; |
141 | |
142 | /* Reset potential sums */ |
143 | velecsum = 0.0; |
144 | vvdwsum = 0.0; |
145 | |
146 | /* Start inner kernel loop */ |
147 | for(jidx=j_index_start; jidx<j_index_end; jidx++) |
148 | { |
149 | /* Get j neighbor index, and coordinate index */ |
150 | jnr = jjnr[jidx]; |
151 | j_coord_offset = DIM3*jnr; |
152 | |
153 | /* load j atom coordinates */ |
154 | jx0 = x[j_coord_offset+DIM3*0+XX0]; |
155 | jy0 = x[j_coord_offset+DIM3*0+YY1]; |
156 | jz0 = x[j_coord_offset+DIM3*0+ZZ2]; |
157 | |
158 | /* Calculate displacement vector */ |
159 | dx00 = ix0 - jx0; |
160 | dy00 = iy0 - jy0; |
161 | dz00 = iz0 - jz0; |
162 | |
163 | /* Calculate squared distance and things based on it */ |
164 | rsq00 = dx00*dx00+dy00*dy00+dz00*dz00; |
165 | |
166 | rinv00 = gmx_invsqrt(rsq00)gmx_software_invsqrt(rsq00); |
167 | |
168 | rinvsq00 = rinv00*rinv00; |
169 | |
170 | /* Load parameters for j particles */ |
171 | jq0 = charge[jnr+0]; |
172 | vdwjidx0 = 2*vdwtype[jnr+0]; |
173 | |
174 | /************************** |
175 | * CALCULATE INTERACTIONS * |
176 | **************************/ |
177 | |
178 | r00 = rsq00*rinv00; |
179 | |
180 | qq00 = iq0*jq0; |
181 | c6_00 = vdwparam[vdwioffset0+vdwjidx0]; |
182 | c12_00 = vdwparam[vdwioffset0+vdwjidx0+1]; |
183 | |
184 | /* EWALD ELECTROSTATICS */ |
185 | |
186 | /* Calculate Ewald table index by multiplying r with scale and truncate to integer */ |
187 | ewrt = r00*ewtabscale; |
188 | ewitab = ewrt; |
189 | eweps = ewrt-ewitab; |
190 | ewitab = 4*ewitab; |
191 | felec = ewtab[ewitab]+eweps*ewtab[ewitab+1]; |
192 | velec = qq00*(rinv00-(ewtab[ewitab+2]-ewtabhalfspace*eweps*(ewtab[ewitab]+felec))); |
193 | felec = qq00*rinv00*(rinvsq00-felec); |
194 | |
195 | /* LENNARD-JONES DISPERSION/REPULSION */ |
196 | |
197 | rinvsix = rinvsq00*rinvsq00*rinvsq00; |
198 | vvdw6 = c6_00*rinvsix; |
199 | vvdw12 = c12_00*rinvsix*rinvsix; |
200 | vvdw = vvdw12*(1.0/12.0) - vvdw6*(1.0/6.0); |
201 | fvdw = (vvdw12-vvdw6)*rinvsq00; |
202 | |
203 | /* Update potential sums from outer loop */ |
204 | velecsum += velec; |
205 | vvdwsum += vvdw; |
206 | |
207 | fscal = felec+fvdw; |
208 | |
209 | /* Calculate temporary vectorial force */ |
210 | tx = fscal*dx00; |
211 | ty = fscal*dy00; |
212 | tz = fscal*dz00; |
213 | |
214 | /* Update vectorial force */ |
215 | fix0 += tx; |
216 | fiy0 += ty; |
217 | fiz0 += tz; |
218 | f[j_coord_offset+DIM3*0+XX0] -= tx; |
219 | f[j_coord_offset+DIM3*0+YY1] -= ty; |
220 | f[j_coord_offset+DIM3*0+ZZ2] -= tz; |
221 | |
222 | /* Inner loop uses 53 flops */ |
223 | } |
224 | /* End of innermost loop */ |
225 | |
226 | tx = ty = tz = 0; |
227 | f[i_coord_offset+DIM3*0+XX0] += fix0; |
228 | f[i_coord_offset+DIM3*0+YY1] += fiy0; |
229 | f[i_coord_offset+DIM3*0+ZZ2] += fiz0; |
230 | tx += fix0; |
231 | ty += fiy0; |
232 | tz += fiz0; |
233 | fshift[i_shift_offset+XX0] += tx; |
234 | fshift[i_shift_offset+YY1] += ty; |
235 | fshift[i_shift_offset+ZZ2] += tz; |
236 | |
237 | ggid = gid[iidx]; |
238 | /* Update potential energies */ |
239 | kernel_data->energygrp_elec[ggid] += velecsum; |
240 | kernel_data->energygrp_vdw[ggid] += vvdwsum; |
241 | |
242 | /* Increment number of inner iterations */ |
243 | inneriter += j_index_end - j_index_start; |
244 | |
245 | /* Outer loop uses 15 flops */ |
246 | } |
247 | |
248 | /* Increment number of outer iterations */ |
249 | outeriter += nri; |
250 | |
251 | /* Update outer/inner flops */ |
252 | |
253 | inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_VDW_VF,outeriter*15 + inneriter*53)(nrnb)->n[eNR_NBKERNEL_ELEC_VDW_VF] += outeriter*15 + inneriter *53; |
254 | } |
255 | /* |
256 | * Gromacs nonbonded kernel: nb_kernel_ElecEw_VdwLJ_GeomP1P1_F_c |
257 | * Electrostatics interaction: Ewald |
258 | * VdW interaction: LennardJones |
259 | * Geometry: Particle-Particle |
260 | * Calculate force/pot: Force |
261 | */ |
262 | void |
263 | nb_kernel_ElecEw_VdwLJ_GeomP1P1_F_c |
264 | (t_nblist * gmx_restrict__restrict nlist, |
265 | rvec * gmx_restrict__restrict xx, |
266 | rvec * gmx_restrict__restrict ff, |
267 | t_forcerec * gmx_restrict__restrict fr, |
268 | t_mdatoms * gmx_restrict__restrict mdatoms, |
269 | nb_kernel_data_t gmx_unused__attribute__ ((unused)) * gmx_restrict__restrict kernel_data, |
270 | t_nrnb * gmx_restrict__restrict nrnb) |
271 | { |
272 | int i_shift_offset,i_coord_offset,j_coord_offset; |
273 | int j_index_start,j_index_end; |
274 | int nri,inr,ggid,iidx,jidx,jnr,outeriter,inneriter; |
275 | real shX,shY,shZ,tx,ty,tz,fscal,rcutoff,rcutoff2; |
276 | int *iinr,*jindex,*jjnr,*shiftidx,*gid; |
277 | real *shiftvec,*fshift,*x,*f; |
278 | int vdwioffset0; |
279 | real ix0,iy0,iz0,fix0,fiy0,fiz0,iq0,isai0; |
280 | int vdwjidx0; |
281 | real jx0,jy0,jz0,fjx0,fjy0,fjz0,jq0,isaj0; |
282 | real dx00,dy00,dz00,rsq00,rinv00,rinvsq00,r00,qq00,c6_00,c12_00,cexp1_00,cexp2_00; |
283 | real velec,felec,velecsum,facel,crf,krf,krf2; |
284 | real *charge; |
285 | int nvdwtype; |
286 | real rinvsix,rvdw,vvdw,vvdw6,vvdw12,fvdw,fvdw6,fvdw12,vvdwsum,br,vvdwexp,sh_vdw_invrcut6; |
287 | int *vdwtype; |
288 | real *vdwparam; |
289 | int ewitab; |
290 | real ewtabscale,eweps,sh_ewald,ewrt,ewtabhalfspace; |
291 | real *ewtab; |
292 | |
293 | x = xx[0]; |
294 | f = ff[0]; |
295 | |
296 | nri = nlist->nri; |
297 | iinr = nlist->iinr; |
298 | jindex = nlist->jindex; |
299 | jjnr = nlist->jjnr; |
300 | shiftidx = nlist->shift; |
301 | gid = nlist->gid; |
302 | shiftvec = fr->shift_vec[0]; |
303 | fshift = fr->fshift[0]; |
304 | facel = fr->epsfac; |
305 | charge = mdatoms->chargeA; |
306 | nvdwtype = fr->ntype; |
307 | vdwparam = fr->nbfp; |
308 | vdwtype = mdatoms->typeA; |
309 | |
310 | sh_ewald = fr->ic->sh_ewald; |
311 | ewtab = fr->ic->tabq_coul_F; |
312 | ewtabscale = fr->ic->tabq_scale; |
313 | ewtabhalfspace = 0.5/ewtabscale; |
Value stored to 'ewtabhalfspace' is never read | |
314 | |
315 | outeriter = 0; |
316 | inneriter = 0; |
317 | |
318 | /* Start outer loop over neighborlists */ |
319 | for(iidx=0; iidx<nri; iidx++) |
320 | { |
321 | /* Load shift vector for this list */ |
322 | i_shift_offset = DIM3*shiftidx[iidx]; |
323 | shX = shiftvec[i_shift_offset+XX0]; |
324 | shY = shiftvec[i_shift_offset+YY1]; |
325 | shZ = shiftvec[i_shift_offset+ZZ2]; |
326 | |
327 | /* Load limits for loop over neighbors */ |
328 | j_index_start = jindex[iidx]; |
329 | j_index_end = jindex[iidx+1]; |
330 | |
331 | /* Get outer coordinate index */ |
332 | inr = iinr[iidx]; |
333 | i_coord_offset = DIM3*inr; |
334 | |
335 | /* Load i particle coords and add shift vector */ |
336 | ix0 = shX + x[i_coord_offset+DIM3*0+XX0]; |
337 | iy0 = shY + x[i_coord_offset+DIM3*0+YY1]; |
338 | iz0 = shZ + x[i_coord_offset+DIM3*0+ZZ2]; |
339 | |
340 | fix0 = 0.0; |
341 | fiy0 = 0.0; |
342 | fiz0 = 0.0; |
343 | |
344 | /* Load parameters for i particles */ |
345 | iq0 = facel*charge[inr+0]; |
346 | vdwioffset0 = 2*nvdwtype*vdwtype[inr+0]; |
347 | |
348 | /* Start inner kernel loop */ |
349 | for(jidx=j_index_start; jidx<j_index_end; jidx++) |
350 | { |
351 | /* Get j neighbor index, and coordinate index */ |
352 | jnr = jjnr[jidx]; |
353 | j_coord_offset = DIM3*jnr; |
354 | |
355 | /* load j atom coordinates */ |
356 | jx0 = x[j_coord_offset+DIM3*0+XX0]; |
357 | jy0 = x[j_coord_offset+DIM3*0+YY1]; |
358 | jz0 = x[j_coord_offset+DIM3*0+ZZ2]; |
359 | |
360 | /* Calculate displacement vector */ |
361 | dx00 = ix0 - jx0; |
362 | dy00 = iy0 - jy0; |
363 | dz00 = iz0 - jz0; |
364 | |
365 | /* Calculate squared distance and things based on it */ |
366 | rsq00 = dx00*dx00+dy00*dy00+dz00*dz00; |
367 | |
368 | rinv00 = gmx_invsqrt(rsq00)gmx_software_invsqrt(rsq00); |
369 | |
370 | rinvsq00 = rinv00*rinv00; |
371 | |
372 | /* Load parameters for j particles */ |
373 | jq0 = charge[jnr+0]; |
374 | vdwjidx0 = 2*vdwtype[jnr+0]; |
375 | |
376 | /************************** |
377 | * CALCULATE INTERACTIONS * |
378 | **************************/ |
379 | |
380 | r00 = rsq00*rinv00; |
381 | |
382 | qq00 = iq0*jq0; |
383 | c6_00 = vdwparam[vdwioffset0+vdwjidx0]; |
384 | c12_00 = vdwparam[vdwioffset0+vdwjidx0+1]; |
385 | |
386 | /* EWALD ELECTROSTATICS */ |
387 | |
388 | /* Calculate Ewald table index by multiplying r with scale and truncate to integer */ |
389 | ewrt = r00*ewtabscale; |
390 | ewitab = ewrt; |
391 | eweps = ewrt-ewitab; |
392 | felec = (1.0-eweps)*ewtab[ewitab]+eweps*ewtab[ewitab+1]; |
393 | felec = qq00*rinv00*(rinvsq00-felec); |
394 | |
395 | /* LENNARD-JONES DISPERSION/REPULSION */ |
396 | |
397 | rinvsix = rinvsq00*rinvsq00*rinvsq00; |
398 | fvdw = (c12_00*rinvsix-c6_00)*rinvsix*rinvsq00; |
399 | |
400 | fscal = felec+fvdw; |
401 | |
402 | /* Calculate temporary vectorial force */ |
403 | tx = fscal*dx00; |
404 | ty = fscal*dy00; |
405 | tz = fscal*dz00; |
406 | |
407 | /* Update vectorial force */ |
408 | fix0 += tx; |
409 | fiy0 += ty; |
410 | fiz0 += tz; |
411 | f[j_coord_offset+DIM3*0+XX0] -= tx; |
412 | f[j_coord_offset+DIM3*0+YY1] -= ty; |
413 | f[j_coord_offset+DIM3*0+ZZ2] -= tz; |
414 | |
415 | /* Inner loop uses 41 flops */ |
416 | } |
417 | /* End of innermost loop */ |
418 | |
419 | tx = ty = tz = 0; |
420 | f[i_coord_offset+DIM3*0+XX0] += fix0; |
421 | f[i_coord_offset+DIM3*0+YY1] += fiy0; |
422 | f[i_coord_offset+DIM3*0+ZZ2] += fiz0; |
423 | tx += fix0; |
424 | ty += fiy0; |
425 | tz += fiz0; |
426 | fshift[i_shift_offset+XX0] += tx; |
427 | fshift[i_shift_offset+YY1] += ty; |
428 | fshift[i_shift_offset+ZZ2] += tz; |
429 | |
430 | /* Increment number of inner iterations */ |
431 | inneriter += j_index_end - j_index_start; |
432 | |
433 | /* Outer loop uses 13 flops */ |
434 | } |
435 | |
436 | /* Increment number of outer iterations */ |
437 | outeriter += nri; |
438 | |
439 | /* Update outer/inner flops */ |
440 | |
441 | inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_VDW_F,outeriter*13 + inneriter*41)(nrnb)->n[eNR_NBKERNEL_ELEC_VDW_F] += outeriter*13 + inneriter *41; |
442 | } |