6a00329f2caef2fc0147cd1af196c55f0aba38c8
[alexxy/gromacs.git] / src / gromacs / gmxlib / nonbonded / nb_kernel_sparc64_hpc_ace_double / nb_kernel_ElecNone_VdwLJ_GeomP1P1_sparc64_hpc_ace_double.c
1 /*
2  * This file is part of the GROMACS molecular simulation package.
3  *
4  * Copyright (c) 2012,2013, 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
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22  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA.
23  *
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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 sparc64_hpc_ace_double kernel generator.
37  */
38 #ifdef HAVE_CONFIG_H
39 #include <config.h>
40 #endif
41
42 #include <math.h>
43
44 #include "../nb_kernel.h"
45 #include "types/simple.h"
46 #include "vec.h"
47 #include "nrnb.h"
48
49 #include "kernelutil_sparc64_hpc_ace_double.h"
50
51 /*
52  * Gromacs nonbonded kernel:   nb_kernel_ElecNone_VdwLJ_GeomP1P1_VF_sparc64_hpc_ace_double
53  * Electrostatics interaction: None
54  * VdW interaction:            LennardJones
55  * Geometry:                   Particle-Particle
56  * Calculate force/pot:        PotentialAndForce
57  */
58 void
59 nb_kernel_ElecNone_VdwLJ_GeomP1P1_VF_sparc64_hpc_ace_double
60                     (t_nblist                    * gmx_restrict       nlist,
61                      rvec                        * gmx_restrict          xx,
62                      rvec                        * gmx_restrict          ff,
63                      t_forcerec                  * gmx_restrict          fr,
64                      t_mdatoms                   * gmx_restrict     mdatoms,
65                      nb_kernel_data_t gmx_unused * gmx_restrict kernel_data,
66                      t_nrnb                      * gmx_restrict        nrnb)
67 {
68     /* Suffixes 0,1,2,3 refer to particle indices for waters in the inner or outer loop, or
69      * just 0 for non-waters.
70      * Suffixes A,B refer to j loop unrolling done with double precision SIMD, e.g. for the two different
71      * jnr indices corresponding to data put in the four positions in the SIMD register.
72      */
73     int              i_shift_offset,i_coord_offset,outeriter,inneriter;
74     int              j_index_start,j_index_end,jidx,nri,inr,ggid,iidx;
75     int              jnrA,jnrB;
76     int              j_coord_offsetA,j_coord_offsetB;
77     int              *iinr,*jindex,*jjnr,*shiftidx,*gid;
78     real             rcutoff_scalar;
79     real             *shiftvec,*fshift,*x,*f;
80     _fjsp_v2r8       tx,ty,tz,fscal,rcutoff,rcutoff2,jidxall;
81     int              vdwioffset0;
82     _fjsp_v2r8       ix0,iy0,iz0,fix0,fiy0,fiz0,iq0,isai0;
83     int              vdwjidx0A,vdwjidx0B;
84     _fjsp_v2r8       jx0,jy0,jz0,fjx0,fjy0,fjz0,jq0,isaj0;
85     _fjsp_v2r8       dx00,dy00,dz00,rsq00,rinv00,rinvsq00,r00,qq00,c6_00,c12_00;
86     int              nvdwtype;
87     _fjsp_v2r8       rinvsix,rvdw,vvdw,vvdw6,vvdw12,fvdw,fvdw6,fvdw12,vvdwsum,sh_vdw_invrcut6;
88     int              *vdwtype;
89     real             *vdwparam;
90     _fjsp_v2r8       one_sixth   = gmx_fjsp_set1_v2r8(1.0/6.0);
91     _fjsp_v2r8       one_twelfth = gmx_fjsp_set1_v2r8(1.0/12.0);
92     _fjsp_v2r8       itab_tmp;
93     _fjsp_v2r8       dummy_mask,cutoff_mask;
94     _fjsp_v2r8       one     = gmx_fjsp_set1_v2r8(1.0);
95     _fjsp_v2r8       two     = gmx_fjsp_set1_v2r8(2.0);
96     union { _fjsp_v2r8 simd; long long int i[2]; } vfconv,gbconv,ewconv;
97
98     x                = xx[0];
99     f                = ff[0];
100
101     nri              = nlist->nri;
102     iinr             = nlist->iinr;
103     jindex           = nlist->jindex;
104     jjnr             = nlist->jjnr;
105     shiftidx         = nlist->shift;
106     gid              = nlist->gid;
107     shiftvec         = fr->shift_vec[0];
108     fshift           = fr->fshift[0];
109     nvdwtype         = fr->ntype;
110     vdwparam         = fr->nbfp;
111     vdwtype          = mdatoms->typeA;
112
113     /* Avoid stupid compiler warnings */
114     jnrA = jnrB = 0;
115     j_coord_offsetA = 0;
116     j_coord_offsetB = 0;
117
118     outeriter        = 0;
119     inneriter        = 0;
120
121     /* Start outer loop over neighborlists */
122     for(iidx=0; iidx<nri; iidx++)
123     {
124         /* Load shift vector for this list */
125         i_shift_offset   = DIM*shiftidx[iidx];
126
127         /* Load limits for loop over neighbors */
128         j_index_start    = jindex[iidx];
129         j_index_end      = jindex[iidx+1];
130
131         /* Get outer coordinate index */
132         inr              = iinr[iidx];
133         i_coord_offset   = DIM*inr;
134
135         /* Load i particle coords and add shift vector */
136         gmx_fjsp_load_shift_and_1rvec_broadcast_v2r8(shiftvec+i_shift_offset,x+i_coord_offset,&ix0,&iy0,&iz0);
137
138         fix0             = _fjsp_setzero_v2r8();
139         fiy0             = _fjsp_setzero_v2r8();
140         fiz0             = _fjsp_setzero_v2r8();
141
142         /* Load parameters for i particles */
143         vdwioffset0      = 2*nvdwtype*vdwtype[inr+0];
144
145         /* Reset potential sums */
146         vvdwsum          = _fjsp_setzero_v2r8();
147
148         /* Start inner kernel loop */
149         for(jidx=j_index_start; jidx<j_index_end-1; jidx+=2)
150         {
151
152             /* Get j neighbor index, and coordinate index */
153             jnrA             = jjnr[jidx];
154             jnrB             = jjnr[jidx+1];
155             j_coord_offsetA  = DIM*jnrA;
156             j_coord_offsetB  = DIM*jnrB;
157
158             /* load j atom coordinates */
159             gmx_fjsp_load_1rvec_2ptr_swizzle_v2r8(x+j_coord_offsetA,x+j_coord_offsetB,
160                                               &jx0,&jy0,&jz0);
161
162             /* Calculate displacement vector */
163             dx00             = _fjsp_sub_v2r8(ix0,jx0);
164             dy00             = _fjsp_sub_v2r8(iy0,jy0);
165             dz00             = _fjsp_sub_v2r8(iz0,jz0);
166
167             /* Calculate squared distance and things based on it */
168             rsq00            = gmx_fjsp_calc_rsq_v2r8(dx00,dy00,dz00);
169
170             rinvsq00         = gmx_fjsp_inv_v2r8(rsq00);
171
172             /* Load parameters for j particles */
173             vdwjidx0A        = 2*vdwtype[jnrA+0];
174             vdwjidx0B        = 2*vdwtype[jnrB+0];
175
176             /**************************
177              * CALCULATE INTERACTIONS *
178              **************************/
179
180             /* Compute parameters for interactions between i and j atoms */
181             gmx_fjsp_load_2pair_swizzle_v2r8(vdwparam+vdwioffset0+vdwjidx0A,
182                                          vdwparam+vdwioffset0+vdwjidx0B,&c6_00,&c12_00);
183
184             /* LENNARD-JONES DISPERSION/REPULSION */
185
186             rinvsix          = _fjsp_mul_v2r8(_fjsp_mul_v2r8(rinvsq00,rinvsq00),rinvsq00);
187             vvdw6            = _fjsp_mul_v2r8(c6_00,rinvsix);
188             vvdw12           = _fjsp_mul_v2r8(c12_00,_fjsp_mul_v2r8(rinvsix,rinvsix));
189             vvdw             = _fjsp_msub_v2r8( vvdw12,one_twelfth, _fjsp_mul_v2r8(vvdw6,one_sixth) );
190             fvdw             = _fjsp_mul_v2r8(_fjsp_sub_v2r8(vvdw12,vvdw6),rinvsq00);
191
192             /* Update potential sum for this i atom from the interaction with this j atom. */
193             vvdwsum          = _fjsp_add_v2r8(vvdwsum,vvdw);
194
195             fscal            = fvdw;
196
197             /* Update vectorial force */
198             fix0             = _fjsp_madd_v2r8(dx00,fscal,fix0);
199             fiy0             = _fjsp_madd_v2r8(dy00,fscal,fiy0);
200             fiz0             = _fjsp_madd_v2r8(dz00,fscal,fiz0);
201             
202             gmx_fjsp_decrement_fma_1rvec_2ptr_swizzle_v2r8(f+j_coord_offsetA,f+j_coord_offsetB,fscal,dx00,dy00,dz00);
203
204             /* Inner loop uses 35 flops */
205         }
206
207         if(jidx<j_index_end)
208         {
209
210             jnrA             = jjnr[jidx];
211             j_coord_offsetA  = DIM*jnrA;
212
213             /* load j atom coordinates */
214             gmx_fjsp_load_1rvec_1ptr_swizzle_v2r8(x+j_coord_offsetA,
215                                               &jx0,&jy0,&jz0);
216
217             /* Calculate displacement vector */
218             dx00             = _fjsp_sub_v2r8(ix0,jx0);
219             dy00             = _fjsp_sub_v2r8(iy0,jy0);
220             dz00             = _fjsp_sub_v2r8(iz0,jz0);
221
222             /* Calculate squared distance and things based on it */
223             rsq00            = gmx_fjsp_calc_rsq_v2r8(dx00,dy00,dz00);
224
225             rinvsq00         = gmx_fjsp_inv_v2r8(rsq00);
226
227             /* Load parameters for j particles */
228             vdwjidx0A        = 2*vdwtype[jnrA+0];
229
230             /**************************
231              * CALCULATE INTERACTIONS *
232              **************************/
233
234             /* Compute parameters for interactions between i and j atoms */
235             gmx_fjsp_load_1pair_swizzle_v2r8(vdwparam+vdwioffset0+vdwjidx0A,&c6_00,&c12_00);
236
237             /* LENNARD-JONES DISPERSION/REPULSION */
238
239             rinvsix          = _fjsp_mul_v2r8(_fjsp_mul_v2r8(rinvsq00,rinvsq00),rinvsq00);
240             vvdw6            = _fjsp_mul_v2r8(c6_00,rinvsix);
241             vvdw12           = _fjsp_mul_v2r8(c12_00,_fjsp_mul_v2r8(rinvsix,rinvsix));
242             vvdw             = _fjsp_msub_v2r8( vvdw12,one_twelfth, _fjsp_mul_v2r8(vvdw6,one_sixth) );
243             fvdw             = _fjsp_mul_v2r8(_fjsp_sub_v2r8(vvdw12,vvdw6),rinvsq00);
244
245             /* Update potential sum for this i atom from the interaction with this j atom. */
246             vvdw             = _fjsp_unpacklo_v2r8(vvdw,_fjsp_setzero_v2r8());
247             vvdwsum          = _fjsp_add_v2r8(vvdwsum,vvdw);
248
249             fscal            = fvdw;
250
251             fscal            = _fjsp_unpacklo_v2r8(fscal,_fjsp_setzero_v2r8());
252
253             /* Update vectorial force */
254             fix0             = _fjsp_madd_v2r8(dx00,fscal,fix0);
255             fiy0             = _fjsp_madd_v2r8(dy00,fscal,fiy0);
256             fiz0             = _fjsp_madd_v2r8(dz00,fscal,fiz0);
257             
258             gmx_fjsp_decrement_fma_1rvec_1ptr_swizzle_v2r8(f+j_coord_offsetA,fscal,dx00,dy00,dz00);
259
260             /* Inner loop uses 35 flops */
261         }
262
263         /* End of innermost loop */
264
265         gmx_fjsp_update_iforce_1atom_swizzle_v2r8(fix0,fiy0,fiz0,
266                                               f+i_coord_offset,fshift+i_shift_offset);
267
268         ggid                        = gid[iidx];
269         /* Update potential energies */
270         gmx_fjsp_update_1pot_v2r8(vvdwsum,kernel_data->energygrp_vdw+ggid);
271
272         /* Increment number of inner iterations */
273         inneriter                  += j_index_end - j_index_start;
274
275         /* Outer loop uses 7 flops */
276     }
277
278     /* Increment number of outer iterations */
279     outeriter        += nri;
280
281     /* Update outer/inner flops */
282
283     inc_nrnb(nrnb,eNR_NBKERNEL_VDW_VF,outeriter*7 + inneriter*35);
284 }
285 /*
286  * Gromacs nonbonded kernel:   nb_kernel_ElecNone_VdwLJ_GeomP1P1_F_sparc64_hpc_ace_double
287  * Electrostatics interaction: None
288  * VdW interaction:            LennardJones
289  * Geometry:                   Particle-Particle
290  * Calculate force/pot:        Force
291  */
292 void
293 nb_kernel_ElecNone_VdwLJ_GeomP1P1_F_sparc64_hpc_ace_double
294                     (t_nblist                    * gmx_restrict       nlist,
295                      rvec                        * gmx_restrict          xx,
296                      rvec                        * gmx_restrict          ff,
297                      t_forcerec                  * gmx_restrict          fr,
298                      t_mdatoms                   * gmx_restrict     mdatoms,
299                      nb_kernel_data_t gmx_unused * gmx_restrict kernel_data,
300                      t_nrnb                      * gmx_restrict        nrnb)
301 {
302     /* Suffixes 0,1,2,3 refer to particle indices for waters in the inner or outer loop, or
303      * just 0 for non-waters.
304      * Suffixes A,B refer to j loop unrolling done with double precision SIMD, e.g. for the two different
305      * jnr indices corresponding to data put in the four positions in the SIMD register.
306      */
307     int              i_shift_offset,i_coord_offset,outeriter,inneriter;
308     int              j_index_start,j_index_end,jidx,nri,inr,ggid,iidx;
309     int              jnrA,jnrB;
310     int              j_coord_offsetA,j_coord_offsetB;
311     int              *iinr,*jindex,*jjnr,*shiftidx,*gid;
312     real             rcutoff_scalar;
313     real             *shiftvec,*fshift,*x,*f;
314     _fjsp_v2r8       tx,ty,tz,fscal,rcutoff,rcutoff2,jidxall;
315     int              vdwioffset0;
316     _fjsp_v2r8       ix0,iy0,iz0,fix0,fiy0,fiz0,iq0,isai0;
317     int              vdwjidx0A,vdwjidx0B;
318     _fjsp_v2r8       jx0,jy0,jz0,fjx0,fjy0,fjz0,jq0,isaj0;
319     _fjsp_v2r8       dx00,dy00,dz00,rsq00,rinv00,rinvsq00,r00,qq00,c6_00,c12_00;
320     int              nvdwtype;
321     _fjsp_v2r8       rinvsix,rvdw,vvdw,vvdw6,vvdw12,fvdw,fvdw6,fvdw12,vvdwsum,sh_vdw_invrcut6;
322     int              *vdwtype;
323     real             *vdwparam;
324     _fjsp_v2r8       one_sixth   = gmx_fjsp_set1_v2r8(1.0/6.0);
325     _fjsp_v2r8       one_twelfth = gmx_fjsp_set1_v2r8(1.0/12.0);
326     _fjsp_v2r8       itab_tmp;
327     _fjsp_v2r8       dummy_mask,cutoff_mask;
328     _fjsp_v2r8       one     = gmx_fjsp_set1_v2r8(1.0);
329     _fjsp_v2r8       two     = gmx_fjsp_set1_v2r8(2.0);
330     union { _fjsp_v2r8 simd; long long int i[2]; } vfconv,gbconv,ewconv;
331
332     x                = xx[0];
333     f                = ff[0];
334
335     nri              = nlist->nri;
336     iinr             = nlist->iinr;
337     jindex           = nlist->jindex;
338     jjnr             = nlist->jjnr;
339     shiftidx         = nlist->shift;
340     gid              = nlist->gid;
341     shiftvec         = fr->shift_vec[0];
342     fshift           = fr->fshift[0];
343     nvdwtype         = fr->ntype;
344     vdwparam         = fr->nbfp;
345     vdwtype          = mdatoms->typeA;
346
347     /* Avoid stupid compiler warnings */
348     jnrA = jnrB = 0;
349     j_coord_offsetA = 0;
350     j_coord_offsetB = 0;
351
352     outeriter        = 0;
353     inneriter        = 0;
354
355     /* Start outer loop over neighborlists */
356     for(iidx=0; iidx<nri; iidx++)
357     {
358         /* Load shift vector for this list */
359         i_shift_offset   = DIM*shiftidx[iidx];
360
361         /* Load limits for loop over neighbors */
362         j_index_start    = jindex[iidx];
363         j_index_end      = jindex[iidx+1];
364
365         /* Get outer coordinate index */
366         inr              = iinr[iidx];
367         i_coord_offset   = DIM*inr;
368
369         /* Load i particle coords and add shift vector */
370         gmx_fjsp_load_shift_and_1rvec_broadcast_v2r8(shiftvec+i_shift_offset,x+i_coord_offset,&ix0,&iy0,&iz0);
371
372         fix0             = _fjsp_setzero_v2r8();
373         fiy0             = _fjsp_setzero_v2r8();
374         fiz0             = _fjsp_setzero_v2r8();
375
376         /* Load parameters for i particles */
377         vdwioffset0      = 2*nvdwtype*vdwtype[inr+0];
378
379         /* Start inner kernel loop */
380         for(jidx=j_index_start; jidx<j_index_end-1; jidx+=2)
381         {
382
383             /* Get j neighbor index, and coordinate index */
384             jnrA             = jjnr[jidx];
385             jnrB             = jjnr[jidx+1];
386             j_coord_offsetA  = DIM*jnrA;
387             j_coord_offsetB  = DIM*jnrB;
388
389             /* load j atom coordinates */
390             gmx_fjsp_load_1rvec_2ptr_swizzle_v2r8(x+j_coord_offsetA,x+j_coord_offsetB,
391                                               &jx0,&jy0,&jz0);
392
393             /* Calculate displacement vector */
394             dx00             = _fjsp_sub_v2r8(ix0,jx0);
395             dy00             = _fjsp_sub_v2r8(iy0,jy0);
396             dz00             = _fjsp_sub_v2r8(iz0,jz0);
397
398             /* Calculate squared distance and things based on it */
399             rsq00            = gmx_fjsp_calc_rsq_v2r8(dx00,dy00,dz00);
400
401             rinvsq00         = gmx_fjsp_inv_v2r8(rsq00);
402
403             /* Load parameters for j particles */
404             vdwjidx0A        = 2*vdwtype[jnrA+0];
405             vdwjidx0B        = 2*vdwtype[jnrB+0];
406
407             /**************************
408              * CALCULATE INTERACTIONS *
409              **************************/
410
411             /* Compute parameters for interactions between i and j atoms */
412             gmx_fjsp_load_2pair_swizzle_v2r8(vdwparam+vdwioffset0+vdwjidx0A,
413                                          vdwparam+vdwioffset0+vdwjidx0B,&c6_00,&c12_00);
414
415             /* LENNARD-JONES DISPERSION/REPULSION */
416
417             rinvsix          = _fjsp_mul_v2r8(_fjsp_mul_v2r8(rinvsq00,rinvsq00),rinvsq00);
418             fvdw             = _fjsp_mul_v2r8(_fjsp_msub_v2r8(c12_00,rinvsix,c6_00),_fjsp_mul_v2r8(rinvsix,rinvsq00));
419
420             fscal            = fvdw;
421
422             /* Update vectorial force */
423             fix0             = _fjsp_madd_v2r8(dx00,fscal,fix0);
424             fiy0             = _fjsp_madd_v2r8(dy00,fscal,fiy0);
425             fiz0             = _fjsp_madd_v2r8(dz00,fscal,fiz0);
426             
427             gmx_fjsp_decrement_fma_1rvec_2ptr_swizzle_v2r8(f+j_coord_offsetA,f+j_coord_offsetB,fscal,dx00,dy00,dz00);
428
429             /* Inner loop uses 30 flops */
430         }
431
432         if(jidx<j_index_end)
433         {
434
435             jnrA             = jjnr[jidx];
436             j_coord_offsetA  = DIM*jnrA;
437
438             /* load j atom coordinates */
439             gmx_fjsp_load_1rvec_1ptr_swizzle_v2r8(x+j_coord_offsetA,
440                                               &jx0,&jy0,&jz0);
441
442             /* Calculate displacement vector */
443             dx00             = _fjsp_sub_v2r8(ix0,jx0);
444             dy00             = _fjsp_sub_v2r8(iy0,jy0);
445             dz00             = _fjsp_sub_v2r8(iz0,jz0);
446
447             /* Calculate squared distance and things based on it */
448             rsq00            = gmx_fjsp_calc_rsq_v2r8(dx00,dy00,dz00);
449
450             rinvsq00         = gmx_fjsp_inv_v2r8(rsq00);
451
452             /* Load parameters for j particles */
453             vdwjidx0A        = 2*vdwtype[jnrA+0];
454
455             /**************************
456              * CALCULATE INTERACTIONS *
457              **************************/
458
459             /* Compute parameters for interactions between i and j atoms */
460             gmx_fjsp_load_1pair_swizzle_v2r8(vdwparam+vdwioffset0+vdwjidx0A,&c6_00,&c12_00);
461
462             /* LENNARD-JONES DISPERSION/REPULSION */
463
464             rinvsix          = _fjsp_mul_v2r8(_fjsp_mul_v2r8(rinvsq00,rinvsq00),rinvsq00);
465             fvdw             = _fjsp_mul_v2r8(_fjsp_msub_v2r8(c12_00,rinvsix,c6_00),_fjsp_mul_v2r8(rinvsix,rinvsq00));
466
467             fscal            = fvdw;
468
469             fscal            = _fjsp_unpacklo_v2r8(fscal,_fjsp_setzero_v2r8());
470
471             /* Update vectorial force */
472             fix0             = _fjsp_madd_v2r8(dx00,fscal,fix0);
473             fiy0             = _fjsp_madd_v2r8(dy00,fscal,fiy0);
474             fiz0             = _fjsp_madd_v2r8(dz00,fscal,fiz0);
475             
476             gmx_fjsp_decrement_fma_1rvec_1ptr_swizzle_v2r8(f+j_coord_offsetA,fscal,dx00,dy00,dz00);
477
478             /* Inner loop uses 30 flops */
479         }
480
481         /* End of innermost loop */
482
483         gmx_fjsp_update_iforce_1atom_swizzle_v2r8(fix0,fiy0,fiz0,
484                                               f+i_coord_offset,fshift+i_shift_offset);
485
486         /* Increment number of inner iterations */
487         inneriter                  += j_index_end - j_index_start;
488
489         /* Outer loop uses 6 flops */
490     }
491
492     /* Increment number of outer iterations */
493     outeriter        += nri;
494
495     /* Update outer/inner flops */
496
497     inc_nrnb(nrnb,eNR_NBKERNEL_VDW_F,outeriter*6 + inneriter*30);
498 }