2 #error This file must be processed with the Gromacs pre-preprocessor
4 /* #if INCLUDE_HEADER */
11 #include "../nb_kernel.h"
12 #include "types/simple.h"
16 #include "gmx_math_x86_avx_256_single.h"
17 #include "kernelutil_x86_avx_256_single.h"
20 /* ## List of variables set by the generating script: */
22 /* ## Setttings that apply to the entire kernel: */
23 /* ## KERNEL_ELEC: String, choice for electrostatic interactions */
24 /* ## KERNEL_VDW: String, choice for van der Waals interactions */
25 /* ## KERNEL_NAME: String, name of this kernel */
26 /* ## KERNEL_VF: String telling if we calculate potential, force, or both */
27 /* ## GEOMETRY_I/GEOMETRY_J: String, name of each geometry, e.g. 'Water3' or '1Particle' */
29 /* ## Setttings that apply to particles in the outer (I) or inner (J) loops: */
30 /* ## PARTICLES_I[]/ Arrays with lists of i/j particles to use in kernel. It is */
31 /* ## PARTICLES_J[]: just [0] for particle geometry, but can be longer for water */
32 /* ## PARTICLES_ELEC_I[]/ Arrays with lists of i/j particle that have electrostatics */
33 /* ## PARTICLES_ELEC_J[]: interactions that should be calculated in this kernel. */
34 /* ## PARTICLES_VDW_I[]/ Arrays with the list of i/j particle that have VdW */
35 /* ## PARTICLES_VDW_J[]: interactions that should be calculated in this kernel. */
37 /* ## Setttings for pairs of interactions (e.g. 2nd i particle against 1st j particle) */
38 /* ## PAIRS_IJ[]: Array with (i,j) tuples of pairs for which interactions */
39 /* ## should be calculated in this kernel. Zero-charge particles */
40 /* ## do not have interactions with particles without vdw, and */
41 /* ## Vdw-only interactions are not evaluated in a no-vdw-kernel. */
42 /* ## INTERACTION_FLAGS[][]: 2D matrix, dimension e.g. 3*3 for water-water interactions. */
43 /* ## For each i-j pair, the element [I][J] is a list of strings */
44 /* ## defining properties/flags of this interaction. Examples */
45 /* ## include 'electrostatics'/'vdw' if that type of interaction */
46 /* ## should be evaluated, 'rsq'/'rinv'/'rinvsq' if those values */
47 /* ## are needed, and 'exactcutoff' or 'shift','switch' to */
48 /* ## decide if the force/potential should be modified. This way */
49 /* ## we only calculate values absolutely needed for each case. */
51 /* ## Calculate the size and offset for (merged/interleaved) table data */
54 * Gromacs nonbonded kernel: {KERNEL_NAME}
55 * Electrostatics interaction: {KERNEL_ELEC}
56 * VdW interaction: {KERNEL_VDW}
57 * Geometry: {GEOMETRY_I}-{GEOMETRY_J}
58 * Calculate force/pot: {KERNEL_VF}
62 (t_nblist * gmx_restrict nlist,
63 rvec * gmx_restrict xx,
64 rvec * gmx_restrict ff,
65 t_forcerec * gmx_restrict fr,
66 t_mdatoms * gmx_restrict mdatoms,
67 nb_kernel_data_t * gmx_restrict kernel_data,
68 t_nrnb * gmx_restrict nrnb)
70 /* ## Not all variables are used for all kernels, but any optimizing compiler fixes that, */
71 /* ## so there is no point in going to extremes to exclude variables that are not needed. */
72 /* Suffixes 0,1,2,3 refer to particle indices for waters in the inner or outer loop, or
73 * just 0 for non-waters.
74 * Suffixes A,B,C,D,E,F,G,H refer to j loop unrolling done with AVX, e.g. for the eight different
75 * jnr indices corresponding to data put in the four positions in the SIMD register.
77 int i_shift_offset,i_coord_offset,outeriter,inneriter;
78 int j_index_start,j_index_end,jidx,nri,inr,ggid,iidx;
79 int jnrA,jnrB,jnrC,jnrD;
80 int jnrE,jnrF,jnrG,jnrH;
81 int jnrlistA,jnrlistB,jnrlistC,jnrlistD;
82 int jnrlistE,jnrlistF,jnrlistG,jnrlistH;
83 int j_coord_offsetA,j_coord_offsetB,j_coord_offsetC,j_coord_offsetD;
84 int j_coord_offsetE,j_coord_offsetF,j_coord_offsetG,j_coord_offsetH;
85 int *iinr,*jindex,*jjnr,*shiftidx,*gid;
87 real *shiftvec,*fshift,*x,*f;
88 real *fjptrA,*fjptrB,*fjptrC,*fjptrD,*fjptrE,*fjptrF,*fjptrG,*fjptrH;
90 __m256 tx,ty,tz,fscal,rcutoff,rcutoff2,jidxall;
91 /* #for I in PARTICLES_I */
92 real * vdwioffsetptr{I};
93 __m256 ix{I},iy{I},iz{I},fix{I},fiy{I},fiz{I},iq{I},isai{I};
95 /* #for J in PARTICLES_J */
96 int vdwjidx{J}A,vdwjidx{J}B,vdwjidx{J}C,vdwjidx{J}D,vdwjidx{J}E,vdwjidx{J}F,vdwjidx{J}G,vdwjidx{J}H;
97 __m256 jx{J},jy{J},jz{J},fjx{J},fjy{J},fjz{J},jq{J},isaj{J};
99 /* #for I,J in PAIRS_IJ */
100 __m256 dx{I}{J},dy{I}{J},dz{I}{J},rsq{I}{J},rinv{I}{J},rinvsq{I}{J},r{I}{J},qq{I}{J},c6_{I}{J},c12_{I}{J};
102 /* #if KERNEL_ELEC != 'None' */
103 __m256 velec,felec,velecsum,facel,crf,krf,krf2;
106 /* #if 'GeneralizedBorn' in KERNEL_ELEC */
108 __m128i gbitab_lo,gbitab_hi;
109 __m256 vgb,fgb,vgbsum,dvdasum,gbscale,gbtabscale,isaprod,gbqqfactor,gbinvepsdiff,gbeps,dvdatmp;
110 __m256 minushalf = _mm256_set1_ps(-0.5);
111 real *invsqrta,*dvda,*gbtab;
113 /* #if KERNEL_VDW != 'None' */
115 __m256 rinvsix,rvdw,vvdw,vvdw6,vvdw12,fvdw,fvdw6,fvdw12,vvdwsum,sh_vdw_invrcut6;
118 __m256 one_sixth = _mm256_set1_ps(1.0/6.0);
119 __m256 one_twelfth = _mm256_set1_ps(1.0/12.0);
121 /* #if 'Table' in KERNEL_ELEC or 'GeneralizedBorn' in KERNEL_ELEC or 'Table' in KERNEL_VDW */
123 __m128i vfitab_lo,vfitab_hi;
124 __m128i ifour = _mm_set1_epi32(4);
125 __m256 rt,vfeps,vftabscale,Y,F,G,H,Heps,Fp,VV,FF;
128 /* #if 'Ewald' in KERNEL_ELEC */
130 __m128i ewitab_lo,ewitab_hi;
131 __m256 ewtabscale,eweps,sh_ewald,ewrt,ewtabhalfspace,ewtabF,ewtabFn,ewtabD,ewtabV;
132 __m256 beta,beta2,beta3,zeta2,pmecorrF,pmecorrV,rinv3;
135 /* #if 'PotentialSwitch' in [KERNEL_MOD_ELEC,KERNEL_MOD_VDW] */
136 __m256 rswitch,swV3,swV4,swV5,swF2,swF3,swF4,d,d2,sw,dsw;
137 real rswitch_scalar,d_scalar;
139 __m256 dummy_mask,cutoff_mask;
140 __m256 signbit = _mm256_castsi256_ps( _mm256_set1_epi32(0x80000000) );
141 __m256 one = _mm256_set1_ps(1.0);
142 __m256 two = _mm256_set1_ps(2.0);
148 jindex = nlist->jindex;
150 shiftidx = nlist->shift;
152 shiftvec = fr->shift_vec[0];
153 fshift = fr->fshift[0];
154 /* #if KERNEL_ELEC != 'None' */
155 facel = _mm256_set1_ps(fr->epsfac);
156 charge = mdatoms->chargeA;
157 /* #if 'ReactionField' in KERNEL_ELEC */
158 krf = _mm256_set1_ps(fr->ic->k_rf);
159 krf2 = _mm256_set1_ps(fr->ic->k_rf*2.0);
160 crf = _mm256_set1_ps(fr->ic->c_rf);
163 /* #if KERNEL_VDW != 'None' */
164 nvdwtype = fr->ntype;
166 vdwtype = mdatoms->typeA;
169 /* #if 'Table' in KERNEL_ELEC and 'Table' in KERNEL_VDW */
170 vftab = kernel_data->table_elec_vdw->data;
171 vftabscale = _mm256_set1_ps(kernel_data->table_elec_vdw->scale);
172 /* #elif 'Table' in KERNEL_ELEC */
173 vftab = kernel_data->table_elec->data;
174 vftabscale = _mm256_set1_ps(kernel_data->table_elec->scale);
175 /* #elif 'Table' in KERNEL_VDW */
176 vftab = kernel_data->table_vdw->data;
177 vftabscale = _mm256_set1_ps(kernel_data->table_vdw->scale);
180 /* #if 'Ewald' in KERNEL_ELEC */
181 sh_ewald = _mm256_set1_ps(fr->ic->sh_ewald);
182 beta = _mm256_set1_ps(fr->ic->ewaldcoeff);
183 beta2 = _mm256_mul_ps(beta,beta);
184 beta3 = _mm256_mul_ps(beta,beta2);
186 /* #if KERNEL_VF=='Force' and KERNEL_MOD_ELEC!='PotentialSwitch' */
187 ewtab = fr->ic->tabq_coul_F;
188 ewtabscale = _mm256_set1_ps(fr->ic->tabq_scale);
189 ewtabhalfspace = _mm256_set1_ps(0.5/fr->ic->tabq_scale);
191 ewtab = fr->ic->tabq_coul_FDV0;
192 ewtabscale = _mm256_set1_ps(fr->ic->tabq_scale);
193 ewtabhalfspace = _mm256_set1_ps(0.5/fr->ic->tabq_scale);
197 /* #if KERNEL_ELEC=='GeneralizedBorn' */
198 invsqrta = fr->invsqrta;
200 gbtabscale = _mm256_set1_ps(fr->gbtab.scale);
201 gbtab = fr->gbtab.data;
202 gbinvepsdiff = _mm256_set1_ps((1.0/fr->epsilon_r) - (1.0/fr->gb_epsilon_solvent));
205 /* #if 'Water' in GEOMETRY_I */
206 /* Setup water-specific parameters */
207 inr = nlist->iinr[0];
208 /* #for I in PARTICLES_ELEC_I */
209 iq{I} = _mm256_mul_ps(facel,_mm256_set1_ps(charge[inr+{I}]));
211 /* #for I in PARTICLES_VDW_I */
212 vdwioffsetptr{I} = vdwparam+2*nvdwtype*vdwtype[inr+{I}];
216 /* #if 'Water' in GEOMETRY_J */
217 /* #for J in PARTICLES_ELEC_J */
218 jq{J} = _mm256_set1_ps(charge[inr+{J}]);
220 /* #for J in PARTICLES_VDW_J */
221 vdwjidx{J}A = 2*vdwtype[inr+{J}];
223 /* #for I,J in PAIRS_IJ */
224 /* #if 'electrostatics' in INTERACTION_FLAGS[I][J] */
225 qq{I}{J} = _mm256_mul_ps(iq{I},jq{J});
227 /* #if 'vdw' in INTERACTION_FLAGS[I][J] */
228 c6_{I}{J} = _mm256_set1_ps(vdwioffsetptr{I}[vdwjidx{J}A]);
229 c12_{I}{J} = _mm256_set1_ps(vdwioffsetptr{I}[vdwjidx{J}A+1]);
234 /* #if KERNEL_MOD_ELEC!='None' or KERNEL_MOD_VDW!='None' */
235 /* #if KERNEL_ELEC!='None' */
236 /* When we use explicit cutoffs the value must be identical for elec and VdW, so use elec as an arbitrary choice */
237 rcutoff_scalar = fr->rcoulomb;
239 rcutoff_scalar = fr->rvdw;
241 rcutoff = _mm256_set1_ps(rcutoff_scalar);
242 rcutoff2 = _mm256_mul_ps(rcutoff,rcutoff);
245 /* #if KERNEL_MOD_VDW=='PotentialShift' */
246 sh_vdw_invrcut6 = _mm256_set1_ps(fr->ic->sh_invrc6);
247 rvdw = _mm256_set1_ps(fr->rvdw);
250 /* #if 'PotentialSwitch' in [KERNEL_MOD_ELEC,KERNEL_MOD_VDW] */
251 /* #if KERNEL_MOD_ELEC=='PotentialSwitch' */
252 rswitch_scalar = fr->rcoulomb_switch;
253 rswitch = _mm256_set1_ps(rswitch_scalar);
255 rswitch_scalar = fr->rvdw_switch;
256 rswitch = _mm256_set1_ps(rswitch_scalar);
258 /* Setup switch parameters */
259 d_scalar = rcutoff_scalar-rswitch_scalar;
260 d = _mm256_set1_ps(d_scalar);
261 swV3 = _mm256_set1_ps(-10.0/(d_scalar*d_scalar*d_scalar));
262 swV4 = _mm256_set1_ps( 15.0/(d_scalar*d_scalar*d_scalar*d_scalar));
263 swV5 = _mm256_set1_ps( -6.0/(d_scalar*d_scalar*d_scalar*d_scalar*d_scalar));
264 /* #if 'Force' in KERNEL_VF */
265 swF2 = _mm256_set1_ps(-30.0/(d_scalar*d_scalar*d_scalar));
266 swF3 = _mm256_set1_ps( 60.0/(d_scalar*d_scalar*d_scalar*d_scalar));
267 swF4 = _mm256_set1_ps(-30.0/(d_scalar*d_scalar*d_scalar*d_scalar*d_scalar));
271 /* Avoid stupid compiler warnings */
272 jnrA = jnrB = jnrC = jnrD = jnrE = jnrF = jnrG = jnrH = 0;
282 /* ## Keep track of the floating point operations we issue for reporting! */
283 /* #define OUTERFLOPS 0 */
287 for(iidx=0;iidx<4*DIM;iidx++)
292 /* Start outer loop over neighborlists */
293 for(iidx=0; iidx<nri; iidx++)
295 /* Load shift vector for this list */
296 i_shift_offset = DIM*shiftidx[iidx];
298 /* Load limits for loop over neighbors */
299 j_index_start = jindex[iidx];
300 j_index_end = jindex[iidx+1];
302 /* Get outer coordinate index */
304 i_coord_offset = DIM*inr;
306 /* Load i particle coords and add shift vector */
307 /* #if GEOMETRY_I == 'Particle' */
308 gmx_mm256_load_shift_and_1rvec_broadcast_ps(shiftvec+i_shift_offset,x+i_coord_offset,&ix0,&iy0,&iz0);
309 /* #elif GEOMETRY_I == 'Water3' */
310 gmx_mm256_load_shift_and_3rvec_broadcast_ps(shiftvec+i_shift_offset,x+i_coord_offset,
311 &ix0,&iy0,&iz0,&ix1,&iy1,&iz1,&ix2,&iy2,&iz2);
312 /* #elif GEOMETRY_I == 'Water4' */
313 /* #if 0 in PARTICLES_I */
314 gmx_mm256_load_shift_and_4rvec_broadcast_ps(shiftvec+i_shift_offset,x+i_coord_offset,
315 &ix0,&iy0,&iz0,&ix1,&iy1,&iz1,&ix2,&iy2,&iz2,&ix3,&iy3,&iz3);
317 gmx_mm256_load_shift_and_3rvec_broadcast_ps(shiftvec+i_shift_offset,x+i_coord_offset+DIM,
318 &ix1,&iy1,&iz1,&ix2,&iy2,&iz2,&ix3,&iy3,&iz3);
322 /* #if 'Force' in KERNEL_VF */
323 /* #for I in PARTICLES_I */
324 fix{I} = _mm256_setzero_ps();
325 fiy{I} = _mm256_setzero_ps();
326 fiz{I} = _mm256_setzero_ps();
330 /* ## For water we already preloaded parameters at the start of the kernel */
331 /* #if not 'Water' in GEOMETRY_I */
332 /* Load parameters for i particles */
333 /* #for I in PARTICLES_ELEC_I */
334 iq{I} = _mm256_mul_ps(facel,_mm256_set1_ps(charge[inr+{I}]));
335 /* #define OUTERFLOPS OUTERFLOPS+1 */
336 /* #if KERNEL_ELEC=='GeneralizedBorn' */
337 isai{I} = _mm256_set1_ps(invsqrta[inr+{I}]);
340 /* #for I in PARTICLES_VDW_I */
341 vdwioffsetptr{I} = vdwparam+2*nvdwtype*vdwtype[inr+{I}];
345 /* #if 'Potential' in KERNEL_VF */
346 /* Reset potential sums */
347 /* #if KERNEL_ELEC != 'None' */
348 velecsum = _mm256_setzero_ps();
350 /* #if 'GeneralizedBorn' in KERNEL_ELEC */
351 vgbsum = _mm256_setzero_ps();
353 /* #if KERNEL_VDW != 'None' */
354 vvdwsum = _mm256_setzero_ps();
357 /* #if 'GeneralizedBorn' in KERNEL_ELEC and 'Force' in KERNEL_VF */
358 dvdasum = _mm256_setzero_ps();
361 /* #for ROUND in ['Loop','Epilogue'] */
363 /* #if ROUND =='Loop' */
364 /* Start inner kernel loop */
365 for(jidx=j_index_start; jidx<j_index_end && jjnr[jidx+7]>=0; jidx+=8)
367 /* ## First round is normal loop (next statement resets indentation) */
374 /* ## Second round is epilogue */
376 /* #define INNERFLOPS 0 */
378 /* Get j neighbor index, and coordinate index */
379 /* #if ROUND =='Loop' */
389 jnrlistA = jjnr[jidx];
390 jnrlistB = jjnr[jidx+1];
391 jnrlistC = jjnr[jidx+2];
392 jnrlistD = jjnr[jidx+3];
393 jnrlistE = jjnr[jidx+4];
394 jnrlistF = jjnr[jidx+5];
395 jnrlistG = jjnr[jidx+6];
396 jnrlistH = jjnr[jidx+7];
397 /* Sign of each element will be negative for non-real atoms.
398 * This mask will be 0xFFFFFFFF for dummy entries and 0x0 for real ones,
399 * so use it as val = _mm_andnot_ps(mask,val) to clear dummy entries.
401 dummy_mask = gmx_mm256_set_m128(gmx_mm_castsi128_ps(_mm_cmplt_epi32(_mm_loadu_si128((const __m128i *)(jjnr+jidx+4)),_mm_setzero_si128())),
402 gmx_mm_castsi128_ps(_mm_cmplt_epi32(_mm_loadu_si128((const __m128i *)(jjnr+jidx)),_mm_setzero_si128())));
404 jnrA = (jnrlistA>=0) ? jnrlistA : 0;
405 jnrB = (jnrlistB>=0) ? jnrlistB : 0;
406 jnrC = (jnrlistC>=0) ? jnrlistC : 0;
407 jnrD = (jnrlistD>=0) ? jnrlistD : 0;
408 jnrE = (jnrlistE>=0) ? jnrlistE : 0;
409 jnrF = (jnrlistF>=0) ? jnrlistF : 0;
410 jnrG = (jnrlistG>=0) ? jnrlistG : 0;
411 jnrH = (jnrlistH>=0) ? jnrlistH : 0;
413 j_coord_offsetA = DIM*jnrA;
414 j_coord_offsetB = DIM*jnrB;
415 j_coord_offsetC = DIM*jnrC;
416 j_coord_offsetD = DIM*jnrD;
417 j_coord_offsetE = DIM*jnrE;
418 j_coord_offsetF = DIM*jnrF;
419 j_coord_offsetG = DIM*jnrG;
420 j_coord_offsetH = DIM*jnrH;
422 /* load j atom coordinates */
423 /* #if GEOMETRY_J == 'Particle' */
424 gmx_mm256_load_1rvec_8ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB,
425 x+j_coord_offsetC,x+j_coord_offsetD,
426 x+j_coord_offsetE,x+j_coord_offsetF,
427 x+j_coord_offsetG,x+j_coord_offsetH,
429 /* #elif GEOMETRY_J == 'Water3' */
430 gmx_mm256_load_3rvec_8ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB,
431 x+j_coord_offsetC,x+j_coord_offsetD,
432 x+j_coord_offsetE,x+j_coord_offsetF,
433 x+j_coord_offsetG,x+j_coord_offsetH,
434 &jx0,&jy0,&jz0,&jx1,&jy1,&jz1,&jx2,&jy2,&jz2);
435 /* #elif GEOMETRY_J == 'Water4' */
436 /* #if 0 in PARTICLES_J */
437 gmx_mm256_load_4rvec_8ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB,
438 x+j_coord_offsetC,x+j_coord_offsetD,
439 x+j_coord_offsetE,x+j_coord_offsetF,
440 x+j_coord_offsetG,x+j_coord_offsetH,
441 &jx0,&jy0,&jz0,&jx1,&jy1,&jz1,&jx2,
442 &jy2,&jz2,&jx3,&jy3,&jz3);
444 gmx_mm256_load_3rvec_8ptr_swizzle_ps(x+j_coord_offsetA+DIM,x+j_coord_offsetB+DIM,
445 x+j_coord_offsetC+DIM,x+j_coord_offsetD+DIM,
446 x+j_coord_offsetE+DIM,x+j_coord_offsetF+DIM,
447 x+j_coord_offsetG+DIM,x+j_coord_offsetH+DIM,
448 &jx1,&jy1,&jz1,&jx2,&jy2,&jz2,&jx3,&jy3,&jz3);
452 /* Calculate displacement vector */
453 /* #for I,J in PAIRS_IJ */
454 dx{I}{J} = _mm256_sub_ps(ix{I},jx{J});
455 dy{I}{J} = _mm256_sub_ps(iy{I},jy{J});
456 dz{I}{J} = _mm256_sub_ps(iz{I},jz{J});
457 /* #define INNERFLOPS INNERFLOPS+3 */
460 /* Calculate squared distance and things based on it */
461 /* #for I,J in PAIRS_IJ */
462 rsq{I}{J} = gmx_mm256_calc_rsq_ps(dx{I}{J},dy{I}{J},dz{I}{J});
463 /* #define INNERFLOPS INNERFLOPS+5 */
466 /* #for I,J in PAIRS_IJ */
467 /* #if 'rinv' in INTERACTION_FLAGS[I][J] */
468 rinv{I}{J} = gmx_mm256_invsqrt_ps(rsq{I}{J});
469 /* #define INNERFLOPS INNERFLOPS+5 */
473 /* #for I,J in PAIRS_IJ */
474 /* #if 'rinvsq' in INTERACTION_FLAGS[I][J] */
475 /* # if 'rinv' not in INTERACTION_FLAGS[I][J] */
476 rinvsq{I}{J} = gmx_mm256_inv_ps(rsq{I}{J});
477 /* #define INNERFLOPS INNERFLOPS+4 */
479 rinvsq{I}{J} = _mm256_mul_ps(rinv{I}{J},rinv{I}{J});
480 /* #define INNERFLOPS INNERFLOPS+1 */
485 /* #if not 'Water' in GEOMETRY_J */
486 /* Load parameters for j particles */
487 /* #for J in PARTICLES_ELEC_J */
488 jq{J} = gmx_mm256_load_8real_swizzle_ps(charge+jnrA+{J},charge+jnrB+{J},
489 charge+jnrC+{J},charge+jnrD+{J},
490 charge+jnrE+{J},charge+jnrF+{J},
491 charge+jnrG+{J},charge+jnrH+{J});
492 /* #if KERNEL_ELEC=='GeneralizedBorn' */
493 isaj{J} = gmx_mm256_load_8real_swizzle_ps(invsqrta+jnrA+{J},invsqrta+jnrB+{J},
494 invsqrta+jnrC+{J},invsqrta+jnrD+{J},
495 invsqrta+jnrE+{J},invsqrta+jnrF+{J},
496 invsqrta+jnrG+{J},invsqrta+jnrH+{J});
499 /* #for J in PARTICLES_VDW_J */
500 vdwjidx{J}A = 2*vdwtype[jnrA+{J}];
501 vdwjidx{J}B = 2*vdwtype[jnrB+{J}];
502 vdwjidx{J}C = 2*vdwtype[jnrC+{J}];
503 vdwjidx{J}D = 2*vdwtype[jnrD+{J}];
504 vdwjidx{J}E = 2*vdwtype[jnrE+{J}];
505 vdwjidx{J}F = 2*vdwtype[jnrF+{J}];
506 vdwjidx{J}G = 2*vdwtype[jnrG+{J}];
507 vdwjidx{J}H = 2*vdwtype[jnrH+{J}];
511 /* #if 'Force' in KERNEL_VF and not 'Particle' in GEOMETRY_I */
512 /* #for J in PARTICLES_J */
513 fjx{J} = _mm256_setzero_ps();
514 fjy{J} = _mm256_setzero_ps();
515 fjz{J} = _mm256_setzero_ps();
519 /* #for I,J in PAIRS_IJ */
521 /**************************
522 * CALCULATE INTERACTIONS *
523 **************************/
525 /* ## Note special check for TIP4P-TIP4P. Since we are cutting of all hydrogen interactions we also cut the LJ-only O-O interaction */
526 /* #if 'exactcutoff' in INTERACTION_FLAGS[I][J] or (GEOMETRY_I=='Water4' and GEOMETRY_J=='Water4' and 'exactcutoff' in INTERACTION_FLAGS[1][1]) */
527 /* ## We always calculate rinv/rinvsq above to enable pipelineing in compilers (performance tested on x86) */
528 if (gmx_mm256_any_lt(rsq{I}{J},rcutoff2))
530 /* #if 0 ## this and the next two lines is a hack to maintain auto-indentation in template file */
533 /* #define INNERFLOPS INNERFLOPS+1 */
536 /* #if 'r' in INTERACTION_FLAGS[I][J] */
537 r{I}{J} = _mm256_mul_ps(rsq{I}{J},rinv{I}{J});
538 /* #if ROUND == 'Epilogue' */
539 r{I}{J} = _mm256_andnot_ps(dummy_mask,r{I}{J});
540 /* #define INNERFLOPS INNERFLOPS+1 */
542 /* #define INNERFLOPS INNERFLOPS+1 */
545 /* ## For water geometries we already loaded parameters at the start of the kernel */
546 /* #if not 'Water' in GEOMETRY_J */
547 /* Compute parameters for interactions between i and j atoms */
548 /* #if 'electrostatics' in INTERACTION_FLAGS[I][J] */
549 qq{I}{J} = _mm256_mul_ps(iq{I},jq{J});
550 /* #define INNERFLOPS INNERFLOPS+1 */
552 /* #if 'vdw' in INTERACTION_FLAGS[I][J] */
553 gmx_mm256_load_8pair_swizzle_ps(vdwioffsetptr{I}+vdwjidx{J}A,
554 vdwioffsetptr{I}+vdwjidx{J}B,
555 vdwioffsetptr{I}+vdwjidx{J}C,
556 vdwioffsetptr{I}+vdwjidx{J}D,
557 vdwioffsetptr{I}+vdwjidx{J}E,
558 vdwioffsetptr{I}+vdwjidx{J}F,
559 vdwioffsetptr{I}+vdwjidx{J}G,
560 vdwioffsetptr{I}+vdwjidx{J}H,
561 &c6_{I}{J},&c12_{I}{J});
565 /* #if 'table' in INTERACTION_FLAGS[I][J] */
566 /* Calculate table index by multiplying r with table scale and truncate to integer */
567 rt = _mm256_mul_ps(r{I}{J},vftabscale);
568 vfitab = _mm256_cvttps_epi32(rt);
569 vfeps = _mm256_sub_ps(rt,_mm256_round_ps(rt, _MM_FROUND_FLOOR));
570 /* #define INNERFLOPS INNERFLOPS+4 */
571 /* AVX1 does not support 256-bit integer operations, so now we go to 128-bit mode... */
572 vfitab_lo = _mm256_extractf128_si256(vfitab,0x0);
573 vfitab_hi = _mm256_extractf128_si256(vfitab,0x1);
574 /* #if 'Table' in KERNEL_ELEC and 'Table' in KERNEL_VDW */
575 /* ## 3 tables, 4 bytes per point: multiply index by 12 */
576 vfitab_lo = _mm_slli_epi32(_mm_add_epi32(vfitab_lo,_mm_slli_epi32(vfitab_lo,1)),2);
577 vfitab_hi = _mm_slli_epi32(_mm_add_epi32(vfitab_hi,_mm_slli_epi32(vfitab_hi,1)),2);
578 /* #elif 'Table' in KERNEL_ELEC */
579 /* ## 1 table, 4 bytes per point: multiply index by 4 */
580 vfitab_lo = _mm_slli_epi32(vfitab_lo,2);
581 vfitab_hi = _mm_slli_epi32(vfitab_hi,2);
582 /* #elif 'Table' in KERNEL_VDW */
583 /* ## 2 tables, 4 bytes per point: multiply index by 8 */
584 vfitab_lo = _mm_slli_epi32(vfitab_lo,3);
585 vfitab_hi = _mm_slli_epi32(vfitab_hi,3);
589 /* ## ELECTROSTATIC INTERACTIONS */
590 /* #if 'electrostatics' in INTERACTION_FLAGS[I][J] */
592 /* #if KERNEL_ELEC=='Coulomb' */
594 /* COULOMB ELECTROSTATICS */
595 velec = _mm256_mul_ps(qq{I}{J},rinv{I}{J});
596 /* #define INNERFLOPS INNERFLOPS+1 */
597 /* #if 'Force' in KERNEL_VF */
598 felec = _mm256_mul_ps(velec,rinvsq{I}{J});
599 /* #define INNERFLOPS INNERFLOPS+1 */
602 /* #elif KERNEL_ELEC=='ReactionField' */
604 /* REACTION-FIELD ELECTROSTATICS */
605 /* #if 'Potential' in KERNEL_VF */
606 velec = _mm256_mul_ps(qq{I}{J},_mm256_sub_ps(_mm256_add_ps(rinv{I}{J},_mm256_mul_ps(krf,rsq{I}{J})),crf));
607 /* #define INNERFLOPS INNERFLOPS+4 */
609 /* #if 'Force' in KERNEL_VF */
610 felec = _mm256_mul_ps(qq{I}{J},_mm256_sub_ps(_mm256_mul_ps(rinv{I}{J},rinvsq{I}{J}),krf2));
611 /* #define INNERFLOPS INNERFLOPS+3 */
614 /* #elif KERNEL_ELEC=='GeneralizedBorn' */
616 /* GENERALIZED BORN AND COULOMB ELECTROSTATICS */
617 isaprod = _mm256_mul_ps(isai{I},isaj{J});
618 gbqqfactor = _mm256_xor_ps(signbit,_mm256_mul_ps(qq{I}{J},_mm256_mul_ps(isaprod,gbinvepsdiff)));
619 gbscale = _mm256_mul_ps(isaprod,gbtabscale);
620 /* #define INNERFLOPS INNERFLOPS+5 */
622 /* Calculate generalized born table index - this is a separate table from the normal one,
623 * but we use the same procedure by multiplying r with scale and truncating to integer.
625 rt = _mm256_mul_ps(r{I}{J},gbscale);
626 gbitab = _mm256_cvttps_epi32(rt);
627 gbeps = _mm256_sub_ps(rt,_mm256_round_ps(rt, _MM_FROUND_FLOOR));
628 /* AVX1 does not support 256-bit integer operations, so now we go to 128-bit mode... */
629 gbitab_lo = _mm256_extractf128_si256(gbitab,0x0);
630 gbitab_hi = _mm256_extractf128_si256(gbitab,0x1);
631 gbitab_lo = _mm_slli_epi32(gbitab_lo,2);
632 gbitab_hi = _mm_slli_epi32(gbitab_hi,2);
633 Y = gmx_mm256_set_m128(_mm_load_ps(gbtab + _mm_extract_epi32(gbitab_hi,0)),
634 _mm_load_ps(gbtab + _mm_extract_epi32(gbitab_lo,0)));
635 F = gmx_mm256_set_m128(_mm_load_ps(gbtab + _mm_extract_epi32(gbitab_hi,1)),
636 _mm_load_ps(gbtab + _mm_extract_epi32(gbitab_lo,1)));
637 G = gmx_mm256_set_m128(_mm_load_ps(gbtab + _mm_extract_epi32(gbitab_hi,2)),
638 _mm_load_ps(gbtab + _mm_extract_epi32(gbitab_lo,2)));
639 H = gmx_mm256_set_m128(_mm_load_ps(gbtab + _mm_extract_epi32(gbitab_hi,3)),
640 _mm_load_ps(gbtab + _mm_extract_epi32(gbitab_lo,3)));
641 GMX_MM256_HALFTRANSPOSE4_PS(Y,F,G,H);
642 Heps = _mm256_mul_ps(gbeps,H);
643 Fp = _mm256_add_ps(F,_mm256_mul_ps(gbeps,_mm256_add_ps(G,Heps)));
644 VV = _mm256_add_ps(Y,_mm256_mul_ps(gbeps,Fp));
645 vgb = _mm256_mul_ps(gbqqfactor,VV);
646 /* #define INNERFLOPS INNERFLOPS+10 */
648 /* #if 'Force' in KERNEL_VF */
649 FF = _mm256_add_ps(Fp,_mm256_mul_ps(gbeps,_mm256_add_ps(G,_mm256_add_ps(Heps,Heps))));
650 fgb = _mm256_mul_ps(gbqqfactor,_mm256_mul_ps(FF,gbscale));
651 dvdatmp = _mm256_mul_ps(minushalf,_mm256_add_ps(vgb,_mm256_mul_ps(fgb,r{I}{J})));
652 dvdasum = _mm256_add_ps(dvdasum,dvdatmp);
653 /* #if ROUND == 'Loop' */
663 /* The pointers to scratch make sure that this code with compilers that take gmx_restrict seriously (e.g. icc 13) really can't screw things up. */
664 fjptrA = (jnrlistA>=0) ? dvda+jnrA : scratch;
665 fjptrB = (jnrlistB>=0) ? dvda+jnrB : scratch;
666 fjptrC = (jnrlistC>=0) ? dvda+jnrC : scratch;
667 fjptrD = (jnrlistD>=0) ? dvda+jnrD : scratch;
668 fjptrE = (jnrlistE>=0) ? dvda+jnrE : scratch;
669 fjptrF = (jnrlistF>=0) ? dvda+jnrF : scratch;
670 fjptrG = (jnrlistG>=0) ? dvda+jnrG : scratch;
671 fjptrH = (jnrlistH>=0) ? dvda+jnrH : scratch;
673 gmx_mm256_increment_8real_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,fjptrE,fjptrF,fjptrG,fjptrH,
674 _mm256_mul_ps(dvdatmp,_mm256_mul_ps(isaj{J},isaj{J})));
675 /* #define INNERFLOPS INNERFLOPS+12 */
677 velec = _mm256_mul_ps(qq{I}{J},rinv{I}{J});
678 /* #define INNERFLOPS INNERFLOPS+1 */
679 /* #if 'Force' in KERNEL_VF */
680 felec = _mm256_mul_ps(_mm256_sub_ps(_mm256_mul_ps(velec,rinv{I}{J}),fgb),rinv{I}{J});
681 /* #define INNERFLOPS INNERFLOPS+3 */
684 /* #elif KERNEL_ELEC=='Ewald' */
685 /* EWALD ELECTROSTATICS */
687 /* Analytical PME correction */
688 zeta2 = _mm256_mul_ps(beta2,rsq{I}{J});
689 /* #if 'Force' in KERNEL_VF */
690 rinv3 = _mm256_mul_ps(rinvsq{I}{J},rinv{I}{J});
691 pmecorrF = gmx_mm256_pmecorrF_ps(zeta2);
692 felec = _mm256_add_ps( _mm256_mul_ps(pmecorrF,beta3), rinv3);
693 felec = _mm256_mul_ps(qq{I}{J},felec);
694 /* #define INNERFLOPS INNERFLOPS+31 */
696 /* #if 'Potential' in KERNEL_VF or KERNEL_MOD_ELEC=='PotentialSwitch' */
697 pmecorrV = gmx_mm256_pmecorrV_ps(zeta2);
698 pmecorrV = _mm256_mul_ps(pmecorrV,beta);
699 /* #define INNERFLOPS INNERFLOPS+27 */
700 /* #if KERNEL_MOD_ELEC=='PotentialShift' */
701 velec = _mm256_sub_ps(_mm256_sub_ps(rinv{I}{J},sh_ewald),pmecorrV);
702 /* #define INNERFLOPS INNERFLOPS+21 */
704 velec = _mm256_sub_ps(rinv{I}{J},pmecorrV);
706 velec = _mm256_mul_ps(qq{I}{J},velec);
709 /* #elif KERNEL_ELEC=='CubicSplineTable' */
711 /* CUBIC SPLINE TABLE ELECTROSTATICS */
712 Y = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,0)),
713 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,0)));
714 F = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,1)),
715 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,1)));
716 G = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,2)),
717 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,2)));
718 H = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,3)),
719 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,3)));
720 GMX_MM256_HALFTRANSPOSE4_PS(Y,F,G,H);
721 Heps = _mm256_mul_ps(vfeps,H);
722 Fp = _mm256_add_ps(F,_mm256_mul_ps(vfeps,_mm256_add_ps(G,Heps)));
723 /* #define INNERFLOPS INNERFLOPS+4 */
724 /* #if 'Potential' in KERNEL_VF */
725 VV = _mm256_add_ps(Y,_mm256_mul_ps(vfeps,Fp));
726 velec = _mm256_mul_ps(qq{I}{J},VV);
727 /* #define INNERFLOPS INNERFLOPS+3 */
729 /* #if 'Force' in KERNEL_VF */
730 FF = _mm256_add_ps(Fp,_mm256_mul_ps(vfeps,_mm256_add_ps(G,_mm256_add_ps(Heps,Heps))));
731 felec = _mm256_xor_ps(signbit,_mm256_mul_ps(_mm256_mul_ps(qq{I}{J},FF),_mm256_mul_ps(vftabscale,rinv{I}{J})));
732 /* #define INNERFLOPS INNERFLOPS+7 */
735 /* ## End of check for electrostatics interaction forms */
737 /* ## END OF ELECTROSTATIC INTERACTION CHECK FOR PAIR I-J */
739 /* #if 'vdw' in INTERACTION_FLAGS[I][J] */
741 /* #if KERNEL_VDW=='LennardJones' */
743 /* LENNARD-JONES DISPERSION/REPULSION */
745 rinvsix = _mm256_mul_ps(_mm256_mul_ps(rinvsq{I}{J},rinvsq{I}{J}),rinvsq{I}{J});
746 /* #define INNERFLOPS INNERFLOPS+2 */
747 /* #if 'Potential' in KERNEL_VF or KERNEL_MOD_VDW=='PotentialSwitch' */
748 vvdw6 = _mm256_mul_ps(c6_{I}{J},rinvsix);
749 vvdw12 = _mm256_mul_ps(c12_{I}{J},_mm256_mul_ps(rinvsix,rinvsix));
750 /* #define INNERFLOPS INNERFLOPS+3 */
751 /* #if KERNEL_MOD_VDW=='PotentialShift' */
752 vvdw = _mm256_sub_ps(_mm256_mul_ps( _mm256_sub_ps(vvdw12 , _mm256_mul_ps(c12_{I}{J},_mm256_mul_ps(sh_vdw_invrcut6,sh_vdw_invrcut6))), one_twelfth) ,
753 _mm256_mul_ps( _mm256_sub_ps(vvdw6,_mm256_mul_ps(c6_{I}{J},sh_vdw_invrcut6)),one_sixth));
754 /* #define INNERFLOPS INNERFLOPS+8 */
756 vvdw = _mm256_sub_ps( _mm256_mul_ps(vvdw12,one_twelfth) , _mm256_mul_ps(vvdw6,one_sixth) );
757 /* #define INNERFLOPS INNERFLOPS+3 */
759 /* ## Check for force inside potential check, i.e. this means we already did the potential part */
760 /* #if 'Force' in KERNEL_VF */
761 fvdw = _mm256_mul_ps(_mm256_sub_ps(vvdw12,vvdw6),rinvsq{I}{J});
762 /* #define INNERFLOPS INNERFLOPS+2 */
764 /* #elif KERNEL_VF=='Force' */
765 /* ## Force-only LennardJones makes it possible to save 1 flop (they do add up...) */
766 fvdw = _mm256_mul_ps(_mm256_sub_ps(_mm256_mul_ps(c12_{I}{J},rinvsix),c6_{I}{J}),_mm256_mul_ps(rinvsix,rinvsq{I}{J}));
767 /* #define INNERFLOPS INNERFLOPS+4 */
770 /* #elif KERNEL_VDW=='CubicSplineTable' */
772 /* CUBIC SPLINE TABLE DISPERSION */
773 /* #if 'Table' in KERNEL_ELEC */
774 vfitab_lo = _mm_add_epi32(vfitab_lo,ifour);
775 vfitab_hi = _mm_add_epi32(vfitab_hi,ifour);
777 Y = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,0)),
778 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,0)));
779 F = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,1)),
780 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,1)));
781 G = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,2)),
782 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,2)));
783 H = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,3)),
784 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,3)));
785 GMX_MM256_HALFTRANSPOSE4_PS(Y,F,G,H);
786 Heps = _mm256_mul_ps(vfeps,H);
787 Fp = _mm256_add_ps(F,_mm256_mul_ps(vfeps,_mm256_add_ps(G,Heps)));
788 /* #define INNERFLOPS INNERFLOPS+4 */
789 /* #if 'Potential' in KERNEL_VF */
790 VV = _mm256_add_ps(Y,_mm256_mul_ps(vfeps,Fp));
791 vvdw6 = _mm256_mul_ps(c6_{I}{J},VV);
792 /* #define INNERFLOPS INNERFLOPS+3 */
794 /* #if 'Force' in KERNEL_VF */
795 FF = _mm256_add_ps(Fp,_mm256_mul_ps(vfeps,_mm256_add_ps(G,_mm256_add_ps(Heps,Heps))));
796 fvdw6 = _mm256_mul_ps(c6_{I}{J},FF);
797 /* #define INNERFLOPS INNERFLOPS+4 */
800 /* CUBIC SPLINE TABLE REPULSION */
801 vfitab_lo = _mm_add_epi32(vfitab_lo,ifour);
802 vfitab_hi = _mm_add_epi32(vfitab_hi,ifour);
803 Y = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,0)),
804 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,0)));
805 F = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,1)),
806 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,1)));
807 G = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,2)),
808 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,2)));
809 H = gmx_mm256_set_m128(_mm_load_ps(vftab + _mm_extract_epi32(vfitab_hi,3)),
810 _mm_load_ps(vftab + _mm_extract_epi32(vfitab_lo,3)));
811 GMX_MM256_HALFTRANSPOSE4_PS(Y,F,G,H);
812 Heps = _mm256_mul_ps(vfeps,H);
813 Fp = _mm256_add_ps(F,_mm256_mul_ps(vfeps,_mm256_add_ps(G,Heps)));
814 /* #define INNERFLOPS INNERFLOPS+4 */
815 /* #if 'Potential' in KERNEL_VF */
816 VV = _mm256_add_ps(Y,_mm256_mul_ps(vfeps,Fp));
817 vvdw12 = _mm256_mul_ps(c12_{I}{J},VV);
818 /* #define INNERFLOPS INNERFLOPS+3 */
820 /* #if 'Force' in KERNEL_VF */
821 FF = _mm256_add_ps(Fp,_mm256_mul_ps(vfeps,_mm256_add_ps(G,_mm256_add_ps(Heps,Heps))));
822 fvdw12 = _mm256_mul_ps(c12_{I}{J},FF);
823 /* #define INNERFLOPS INNERFLOPS+5 */
825 /* #if 'Potential' in KERNEL_VF */
826 vvdw = _mm256_add_ps(vvdw12,vvdw6);
827 /* #define INNERFLOPS INNERFLOPS+1 */
829 /* #if 'Force' in KERNEL_VF */
830 fvdw = _mm256_xor_ps(signbit,_mm256_mul_ps(_mm256_add_ps(fvdw6,fvdw12),_mm256_mul_ps(vftabscale,rinv{I}{J})));
831 /* #define INNERFLOPS INNERFLOPS+4 */
834 /* ## End of check for vdw interaction forms */
836 /* ## END OF VDW INTERACTION CHECK FOR PAIR I-J */
838 /* #if 'switch' in INTERACTION_FLAGS[I][J] */
839 d = _mm256_sub_ps(r{I}{J},rswitch);
840 d = _mm256_max_ps(d,_mm256_setzero_ps());
841 d2 = _mm256_mul_ps(d,d);
842 sw = _mm256_add_ps(one,_mm256_mul_ps(d2,_mm256_mul_ps(d,_mm256_add_ps(swV3,_mm256_mul_ps(d,_mm256_add_ps(swV4,_mm256_mul_ps(d,swV5)))))));
843 /* #define INNERFLOPS INNERFLOPS+10 */
845 /* #if 'Force' in KERNEL_VF */
846 dsw = _mm256_mul_ps(d2,_mm256_add_ps(swF2,_mm256_mul_ps(d,_mm256_add_ps(swF3,_mm256_mul_ps(d,swF4)))));
847 /* #define INNERFLOPS INNERFLOPS+5 */
850 /* Evaluate switch function */
851 /* #if 'Force' in KERNEL_VF */
852 /* fscal'=f'/r=-(v*sw)'/r=-(v'*sw+v*dsw)/r=-v'*sw/r-v*dsw/r=fscal*sw-v*dsw/r */
853 /* #if 'electrostatics' in INTERACTION_FLAGS[I][J] and KERNEL_MOD_ELEC=='PotentialSwitch' */
854 felec = _mm256_sub_ps( _mm256_mul_ps(felec,sw) , _mm256_mul_ps(rinv{I}{J},_mm256_mul_ps(velec,dsw)) );
855 /* #define INNERFLOPS INNERFLOPS+4 */
857 /* #if 'vdw' in INTERACTION_FLAGS[I][J] and KERNEL_MOD_VDW=='PotentialSwitch' */
858 fvdw = _mm256_sub_ps( _mm256_mul_ps(fvdw,sw) , _mm256_mul_ps(rinv{I}{J},_mm256_mul_ps(vvdw,dsw)) );
859 /* #define INNERFLOPS INNERFLOPS+4 */
862 /* #if 'Potential' in KERNEL_VF */
863 /* #if 'electrostatics' in INTERACTION_FLAGS[I][J] and KERNEL_MOD_ELEC=='PotentialSwitch' */
864 velec = _mm256_mul_ps(velec,sw);
865 /* #define INNERFLOPS INNERFLOPS+1 */
867 /* #if 'vdw' in INTERACTION_FLAGS[I][J] and KERNEL_MOD_VDW=='PotentialSwitch' */
868 vvdw = _mm256_mul_ps(vvdw,sw);
869 /* #define INNERFLOPS INNERFLOPS+1 */
873 /* ## Note special check for TIP4P-TIP4P. Since we are cutting of all hydrogen interactions we also cut the LJ-only O-O interaction */
874 /* #if 'exactcutoff' in INTERACTION_FLAGS[I][J] or (GEOMETRY_I=='Water4' and GEOMETRY_J=='Water4' and 'exactcutoff' in INTERACTION_FLAGS[1][1]) */
875 cutoff_mask = _mm256_cmp_ps(rsq{I}{J},rcutoff2,_CMP_LT_OQ);
876 /* #define INNERFLOPS INNERFLOPS+1 */
879 /* #if 'Potential' in KERNEL_VF */
880 /* Update potential sum for this i atom from the interaction with this j atom. */
881 /* #if 'electrostatics' in INTERACTION_FLAGS[I][J] */
882 /* #if 'exactcutoff' in INTERACTION_FLAGS[I][J] */
883 velec = _mm256_and_ps(velec,cutoff_mask);
884 /* #define INNERFLOPS INNERFLOPS+1 */
886 /* #if ROUND == 'Epilogue' */
887 velec = _mm256_andnot_ps(dummy_mask,velec);
889 velecsum = _mm256_add_ps(velecsum,velec);
890 /* #define INNERFLOPS INNERFLOPS+1 */
891 /* #if KERNEL_ELEC=='GeneralizedBorn' */
892 /* #if 'exactcutoff' in INTERACTION_FLAGS[I][J] */
893 vgb = _mm256_and_ps(vgb,cutoff_mask);
894 /* #define INNERFLOPS INNERFLOPS+1 */
896 /* #if ROUND == 'Epilogue' */
897 vgb = _mm256_andnot_ps(dummy_mask,vgb);
899 vgbsum = _mm256_add_ps(vgbsum,vgb);
900 /* #define INNERFLOPS INNERFLOPS+1 */
903 /* #if 'vdw' in INTERACTION_FLAGS[I][J] */
904 /* ## Note special check for TIP4P-TIP4P. Since we are cutting of all hydrogen interactions we also cut the LJ-only O-O interaction */
905 /* #if 'exactcutoff' in INTERACTION_FLAGS[I][J] or (GEOMETRY_I=='Water4' and GEOMETRY_J=='Water4' and 'exactcutoff' in INTERACTION_FLAGS[1][1]) */
906 vvdw = _mm256_and_ps(vvdw,cutoff_mask);
907 /* #define INNERFLOPS INNERFLOPS+1 */
909 /* #if ROUND == 'Epilogue' */
910 vvdw = _mm256_andnot_ps(dummy_mask,vvdw);
912 vvdwsum = _mm256_add_ps(vvdwsum,vvdw);
913 /* #define INNERFLOPS INNERFLOPS+1 */
917 /* #if 'Force' in KERNEL_VF */
919 /* #if 'electrostatics' in INTERACTION_FLAGS[I][J] and 'vdw' in INTERACTION_FLAGS[I][J] */
920 fscal = _mm256_add_ps(felec,fvdw);
921 /* #define INNERFLOPS INNERFLOPS+1 */
922 /* #elif 'electrostatics' in INTERACTION_FLAGS[I][J] */
924 /* #elif 'vdw' in INTERACTION_FLAGS[I][J] */
928 /* ## Note special check for TIP4P-TIP4P. Since we are cutting of all hydrogen interactions we also cut the LJ-only O-O interaction */
929 /* #if 'exactcutoff' in INTERACTION_FLAGS[I][J] or (GEOMETRY_I=='Water4' and GEOMETRY_J=='Water4' and 'exactcutoff' in INTERACTION_FLAGS[1][1]) */
930 fscal = _mm256_and_ps(fscal,cutoff_mask);
931 /* #define INNERFLOPS INNERFLOPS+1 */
934 /* #if ROUND == 'Epilogue' */
935 fscal = _mm256_andnot_ps(dummy_mask,fscal);
938 /* Calculate temporary vectorial force */
939 tx = _mm256_mul_ps(fscal,dx{I}{J});
940 ty = _mm256_mul_ps(fscal,dy{I}{J});
941 tz = _mm256_mul_ps(fscal,dz{I}{J});
943 /* Update vectorial force */
944 fix{I} = _mm256_add_ps(fix{I},tx);
945 fiy{I} = _mm256_add_ps(fiy{I},ty);
946 fiz{I} = _mm256_add_ps(fiz{I},tz);
947 /* #define INNERFLOPS INNERFLOPS+6 */
949 /* #if GEOMETRY_I == 'Particle' */
950 /* #if ROUND == 'Loop' */
951 fjptrA = f+j_coord_offsetA;
952 fjptrB = f+j_coord_offsetB;
953 fjptrC = f+j_coord_offsetC;
954 fjptrD = f+j_coord_offsetD;
955 fjptrE = f+j_coord_offsetE;
956 fjptrF = f+j_coord_offsetF;
957 fjptrG = f+j_coord_offsetG;
958 fjptrH = f+j_coord_offsetH;
960 fjptrA = (jnrlistA>=0) ? f+j_coord_offsetA : scratch;
961 fjptrB = (jnrlistB>=0) ? f+j_coord_offsetB : scratch;
962 fjptrC = (jnrlistC>=0) ? f+j_coord_offsetC : scratch;
963 fjptrD = (jnrlistD>=0) ? f+j_coord_offsetD : scratch;
964 fjptrE = (jnrlistE>=0) ? f+j_coord_offsetE : scratch;
965 fjptrF = (jnrlistF>=0) ? f+j_coord_offsetF : scratch;
966 fjptrG = (jnrlistG>=0) ? f+j_coord_offsetG : scratch;
967 fjptrH = (jnrlistH>=0) ? f+j_coord_offsetH : scratch;
969 gmx_mm256_decrement_1rvec_8ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,fjptrE,fjptrF,fjptrG,fjptrH,tx,ty,tz);
970 /* #define INNERFLOPS INNERFLOPS+3 */
972 fjx{J} = _mm256_add_ps(fjx{J},tx);
973 fjy{J} = _mm256_add_ps(fjy{J},ty);
974 fjz{J} = _mm256_add_ps(fjz{J},tz);
975 /* #define INNERFLOPS INNERFLOPS+3 */
980 /* ## Note special check for TIP4P-TIP4P. Since we are cutting of all hydrogen interactions we also cut the LJ-only O-O interaction */
981 /* #if 'exactcutoff' in INTERACTION_FLAGS[I][J] or (GEOMETRY_I=='Water4' and GEOMETRY_J=='Water4' and 'exactcutoff' in INTERACTION_FLAGS[1][1]) */
982 /* #if 0 ## This and next two lines is a hack to maintain indentation in template file */
987 /* ## End of check for the interaction being outside the cutoff */
990 /* ## End of loop over i-j interaction pairs */
992 /* #if GEOMETRY_I != 'Particle' */
993 /* #if ROUND == 'Loop' */
994 fjptrA = f+j_coord_offsetA;
995 fjptrB = f+j_coord_offsetB;
996 fjptrC = f+j_coord_offsetC;
997 fjptrD = f+j_coord_offsetD;
998 fjptrE = f+j_coord_offsetE;
999 fjptrF = f+j_coord_offsetF;
1000 fjptrG = f+j_coord_offsetG;
1001 fjptrH = f+j_coord_offsetH;
1003 fjptrA = (jnrlistA>=0) ? f+j_coord_offsetA : scratch;
1004 fjptrB = (jnrlistB>=0) ? f+j_coord_offsetB : scratch;
1005 fjptrC = (jnrlistC>=0) ? f+j_coord_offsetC : scratch;
1006 fjptrD = (jnrlistD>=0) ? f+j_coord_offsetD : scratch;
1007 fjptrE = (jnrlistE>=0) ? f+j_coord_offsetE : scratch;
1008 fjptrF = (jnrlistF>=0) ? f+j_coord_offsetF : scratch;
1009 fjptrG = (jnrlistG>=0) ? f+j_coord_offsetG : scratch;
1010 fjptrH = (jnrlistH>=0) ? f+j_coord_offsetH : scratch;
1014 /* #if 'Water' in GEOMETRY_I and GEOMETRY_J == 'Particle' */
1015 gmx_mm256_decrement_1rvec_8ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,fjptrE,fjptrF,fjptrG,fjptrH,fjx0,fjy0,fjz0);
1016 /* #define INNERFLOPS INNERFLOPS+3 */
1017 /* #elif GEOMETRY_J == 'Water3' */
1018 gmx_mm256_decrement_3rvec_8ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,fjptrE,fjptrF,fjptrG,fjptrH,
1019 fjx0,fjy0,fjz0,fjx1,fjy1,fjz1,fjx2,fjy2,fjz2);
1020 /* #define INNERFLOPS INNERFLOPS+9 */
1021 /* #elif GEOMETRY_J == 'Water4' */
1022 /* #if 0 in PARTICLES_J */
1023 gmx_mm256_decrement_4rvec_8ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,fjptrE,fjptrF,fjptrG,fjptrH,
1024 fjx0,fjy0,fjz0,fjx1,fjy1,fjz1,
1025 fjx2,fjy2,fjz2,fjx3,fjy3,fjz3);
1026 /* #define INNERFLOPS INNERFLOPS+12 */
1028 gmx_mm256_decrement_3rvec_8ptr_swizzle_ps(fjptrA+DIM,fjptrB+DIM,fjptrC+DIM,fjptrD+DIM,
1029 fjptrE+DIM,fjptrF+DIM,fjptrG+DIM,fjptrH+DIM,
1030 fjx1,fjy1,fjz1,fjx2,fjy2,fjz2,fjx3,fjy3,fjz3);
1031 /* #define INNERFLOPS INNERFLOPS+9 */
1035 /* Inner loop uses {INNERFLOPS} flops */
1040 /* End of innermost loop */
1042 /* #if 'Force' in KERNEL_VF */
1043 /* #if GEOMETRY_I == 'Particle' */
1044 gmx_mm256_update_iforce_1atom_swizzle_ps(fix0,fiy0,fiz0,
1045 f+i_coord_offset,fshift+i_shift_offset);
1046 /* #define OUTERFLOPS OUTERFLOPS+6 */
1047 /* #elif GEOMETRY_I == 'Water3' */
1048 gmx_mm256_update_iforce_3atom_swizzle_ps(fix0,fiy0,fiz0,fix1,fiy1,fiz1,fix2,fiy2,fiz2,
1049 f+i_coord_offset,fshift+i_shift_offset);
1050 /* #define OUTERFLOPS OUTERFLOPS+18 */
1051 /* #elif GEOMETRY_I == 'Water4' */
1052 /* #if 0 in PARTICLES_I */
1053 gmx_mm256_update_iforce_4atom_swizzle_ps(fix0,fiy0,fiz0,fix1,fiy1,fiz1,fix2,fiy2,fiz2,fix3,fiy3,fiz3,
1054 f+i_coord_offset,fshift+i_shift_offset);
1055 /* #define OUTERFLOPS OUTERFLOPS+24 */
1057 gmx_mm256_update_iforce_3atom_swizzle_ps(fix1,fiy1,fiz1,fix2,fiy2,fiz2,fix3,fiy3,fiz3,
1058 f+i_coord_offset+DIM,fshift+i_shift_offset);
1059 /* #define OUTERFLOPS OUTERFLOPS+18 */
1064 /* #if 'Potential' in KERNEL_VF */
1066 /* Update potential energies */
1067 /* #if KERNEL_ELEC != 'None' */
1068 gmx_mm256_update_1pot_ps(velecsum,kernel_data->energygrp_elec+ggid);
1069 /* #define OUTERFLOPS OUTERFLOPS+1 */
1071 /* #if 'GeneralizedBorn' in KERNEL_ELEC */
1072 gmx_mm256_update_1pot_ps(vgbsum,kernel_data->energygrp_polarization+ggid);
1073 /* #define OUTERFLOPS OUTERFLOPS+1 */
1075 /* #if KERNEL_VDW != 'None' */
1076 gmx_mm256_update_1pot_ps(vvdwsum,kernel_data->energygrp_vdw+ggid);
1077 /* #define OUTERFLOPS OUTERFLOPS+1 */
1080 /* #if 'GeneralizedBorn' in KERNEL_ELEC and 'Force' in KERNEL_VF */
1081 dvdasum = _mm256_mul_ps(dvdasum, _mm256_mul_ps(isai{I},isai{I}));
1082 gmx_mm256_update_1pot_ps(dvdasum,dvda+inr);
1085 /* Increment number of inner iterations */
1086 inneriter += j_index_end - j_index_start;
1088 /* Outer loop uses {OUTERFLOPS} flops */
1091 /* Increment number of outer iterations */
1094 /* Update outer/inner flops */
1095 /* ## NB: This is not important, it just affects the flopcount. However, since our preprocessor is */
1096 /* ## primitive and replaces aggressively even in strings inside these directives, we need to */
1097 /* ## assemble the main part of the name (containing KERNEL/ELEC/VDW) directly in the source. */
1098 /* #if GEOMETRY_I == 'Water3' */
1099 /* #define ISUFFIX '_W3' */
1100 /* #elif GEOMETRY_I == 'Water4' */
1101 /* #define ISUFFIX '_W4' */
1103 /* #define ISUFFIX '' */
1105 /* #if GEOMETRY_J == 'Water3' */
1106 /* #define JSUFFIX 'W3' */
1107 /* #elif GEOMETRY_J == 'Water4' */
1108 /* #define JSUFFIX 'W4' */
1110 /* #define JSUFFIX '' */
1112 /* #if 'PotentialAndForce' in KERNEL_VF */
1113 /* #define VFSUFFIX '_VF' */
1114 /* #elif 'Potential' in KERNEL_VF */
1115 /* #define VFSUFFIX '_V' */
1117 /* #define VFSUFFIX '_F' */
1120 /* #if KERNEL_ELEC != 'None' and KERNEL_VDW != 'None' */
1121 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_VDW{ISUFFIX}{JSUFFIX}{VFSUFFIX},outeriter*{OUTERFLOPS} + inneriter*{INNERFLOPS});
1122 /* #elif KERNEL_ELEC != 'None' */
1123 inc_nrnb(nrnb,eNR_NBKERNEL_ELEC{ISUFFIX}{JSUFFIX}{VFSUFFIX},outeriter*{OUTERFLOPS} + inneriter*{INNERFLOPS});
1125 inc_nrnb(nrnb,eNR_NBKERNEL_VDW{ISUFFIX}{JSUFFIX}{VFSUFFIX},outeriter*{OUTERFLOPS} + inneriter*{INNERFLOPS});