| File: | gromacs/gmxlib/nonbonded/nb_kernel_sse4_1_single/nb_kernel_ElecEwSw_VdwLJSw_GeomW3P1_sse4_1_single.c |
| Location: | line 151, column 5 |
| Description: | Value stored to 'd' 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 | * |
| 14 | * GROMACS is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * Lesser General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU Lesser General Public |
| 20 | * License along with GROMACS; if not, see |
| 21 | * http://www.gnu.org/licenses, or write to the Free Software Foundation, |
| 22 | * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 23 | * |
| 24 | * If you want to redistribute modifications to GROMACS, please |
| 25 | * consider that scientific software is very special. Version |
| 26 | * control is crucial - bugs must be traceable. We will be happy to |
| 27 | * consider code for inclusion in the official distribution, but |
| 28 | * derived work must not be called official GROMACS. Details are found |
| 29 | * in the README & COPYING files - if they are missing, get the |
| 30 | * official version at http://www.gromacs.org. |
| 31 | * |
| 32 | * To help us fund GROMACS development, we humbly ask that you cite |
| 33 | * the research papers on the package. Check out http://www.gromacs.org. |
| 34 | */ |
| 35 | /* |
| 36 | * Note: this file was generated by the GROMACS sse4_1_single 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 | #include "gromacs/simd/math_x86_sse4_1_single.h" |
| 50 | #include "kernelutil_x86_sse4_1_single.h" |
| 51 | |
| 52 | /* |
| 53 | * Gromacs nonbonded kernel: nb_kernel_ElecEwSw_VdwLJSw_GeomW3P1_VF_sse4_1_single |
| 54 | * Electrostatics interaction: Ewald |
| 55 | * VdW interaction: LennardJones |
| 56 | * Geometry: Water3-Particle |
| 57 | * Calculate force/pot: PotentialAndForce |
| 58 | */ |
| 59 | void |
| 60 | nb_kernel_ElecEwSw_VdwLJSw_GeomW3P1_VF_sse4_1_single |
| 61 | (t_nblist * gmx_restrict nlist, |
| 62 | rvec * gmx_restrict xx, |
| 63 | rvec * gmx_restrict ff, |
| 64 | t_forcerec * gmx_restrict fr, |
| 65 | t_mdatoms * gmx_restrict mdatoms, |
| 66 | nb_kernel_data_t gmx_unused__attribute__ ((unused)) * gmx_restrict kernel_data, |
| 67 | t_nrnb * gmx_restrict nrnb) |
| 68 | { |
| 69 | /* Suffixes 0,1,2,3 refer to particle indices for waters in the inner or outer loop, or |
| 70 | * just 0 for non-waters. |
| 71 | * Suffixes A,B,C,D refer to j loop unrolling done with SSE, e.g. for the four different |
| 72 | * jnr indices corresponding to data put in the four positions in the SIMD register. |
| 73 | */ |
| 74 | int i_shift_offset,i_coord_offset,outeriter,inneriter; |
| 75 | int j_index_start,j_index_end,jidx,nri,inr,ggid,iidx; |
| 76 | int jnrA,jnrB,jnrC,jnrD; |
| 77 | int jnrlistA,jnrlistB,jnrlistC,jnrlistD; |
| 78 | int j_coord_offsetA,j_coord_offsetB,j_coord_offsetC,j_coord_offsetD; |
| 79 | int *iinr,*jindex,*jjnr,*shiftidx,*gid; |
| 80 | real rcutoff_scalar; |
| 81 | real *shiftvec,*fshift,*x,*f; |
| 82 | real *fjptrA,*fjptrB,*fjptrC,*fjptrD; |
| 83 | real scratch[4*DIM3]; |
| 84 | __m128 tx,ty,tz,fscal,rcutoff,rcutoff2,jidxall; |
| 85 | int vdwioffset0; |
| 86 | __m128 ix0,iy0,iz0,fix0,fiy0,fiz0,iq0,isai0; |
| 87 | int vdwioffset1; |
| 88 | __m128 ix1,iy1,iz1,fix1,fiy1,fiz1,iq1,isai1; |
| 89 | int vdwioffset2; |
| 90 | __m128 ix2,iy2,iz2,fix2,fiy2,fiz2,iq2,isai2; |
| 91 | int vdwjidx0A,vdwjidx0B,vdwjidx0C,vdwjidx0D; |
| 92 | __m128 jx0,jy0,jz0,fjx0,fjy0,fjz0,jq0,isaj0; |
| 93 | __m128 dx00,dy00,dz00,rsq00,rinv00,rinvsq00,r00,qq00,c6_00,c12_00; |
| 94 | __m128 dx10,dy10,dz10,rsq10,rinv10,rinvsq10,r10,qq10,c6_10,c12_10; |
| 95 | __m128 dx20,dy20,dz20,rsq20,rinv20,rinvsq20,r20,qq20,c6_20,c12_20; |
| 96 | __m128 velec,felec,velecsum,facel,crf,krf,krf2; |
| 97 | real *charge; |
| 98 | int nvdwtype; |
| 99 | __m128 rinvsix,rvdw,vvdw,vvdw6,vvdw12,fvdw,fvdw6,fvdw12,vvdwsum,sh_vdw_invrcut6; |
| 100 | int *vdwtype; |
| 101 | real *vdwparam; |
| 102 | __m128 one_sixth = _mm_set1_ps(1.0/6.0); |
| 103 | __m128 one_twelfth = _mm_set1_ps(1.0/12.0); |
| 104 | __m128i ewitab; |
| 105 | __m128 ewtabscale,eweps,sh_ewald,ewrt,ewtabhalfspace,ewtabF,ewtabFn,ewtabD,ewtabV; |
| 106 | real *ewtab; |
| 107 | __m128 rswitch,swV3,swV4,swV5,swF2,swF3,swF4,d,d2,sw,dsw; |
| 108 | real rswitch_scalar,d_scalar; |
| 109 | __m128 dummy_mask,cutoff_mask; |
| 110 | __m128 signbit = _mm_castsi128_ps( _mm_set1_epi32(0x80000000) ); |
| 111 | __m128 one = _mm_set1_ps(1.0); |
| 112 | __m128 two = _mm_set1_ps(2.0); |
| 113 | x = xx[0]; |
| 114 | f = ff[0]; |
| 115 | |
| 116 | nri = nlist->nri; |
| 117 | iinr = nlist->iinr; |
| 118 | jindex = nlist->jindex; |
| 119 | jjnr = nlist->jjnr; |
| 120 | shiftidx = nlist->shift; |
| 121 | gid = nlist->gid; |
| 122 | shiftvec = fr->shift_vec[0]; |
| 123 | fshift = fr->fshift[0]; |
| 124 | facel = _mm_set1_ps(fr->epsfac); |
| 125 | charge = mdatoms->chargeA; |
| 126 | nvdwtype = fr->ntype; |
| 127 | vdwparam = fr->nbfp; |
| 128 | vdwtype = mdatoms->typeA; |
| 129 | |
| 130 | sh_ewald = _mm_set1_ps(fr->ic->sh_ewald); |
| 131 | ewtab = fr->ic->tabq_coul_FDV0; |
| 132 | ewtabscale = _mm_set1_ps(fr->ic->tabq_scale); |
| 133 | ewtabhalfspace = _mm_set1_ps(0.5/fr->ic->tabq_scale); |
| 134 | |
| 135 | /* Setup water-specific parameters */ |
| 136 | inr = nlist->iinr[0]; |
| 137 | iq0 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+0])); |
| 138 | iq1 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+1])); |
| 139 | iq2 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+2])); |
| 140 | vdwioffset0 = 2*nvdwtype*vdwtype[inr+0]; |
| 141 | |
| 142 | /* When we use explicit cutoffs the value must be identical for elec and VdW, so use elec as an arbitrary choice */ |
| 143 | rcutoff_scalar = fr->rcoulomb; |
| 144 | rcutoff = _mm_set1_ps(rcutoff_scalar); |
| 145 | rcutoff2 = _mm_mul_ps(rcutoff,rcutoff); |
| 146 | |
| 147 | rswitch_scalar = fr->rcoulomb_switch; |
| 148 | rswitch = _mm_set1_ps(rswitch_scalar); |
| 149 | /* Setup switch parameters */ |
| 150 | d_scalar = rcutoff_scalar-rswitch_scalar; |
| 151 | d = _mm_set1_ps(d_scalar); |
Value stored to 'd' is never read | |
| 152 | swV3 = _mm_set1_ps(-10.0/(d_scalar*d_scalar*d_scalar)); |
| 153 | swV4 = _mm_set1_ps( 15.0/(d_scalar*d_scalar*d_scalar*d_scalar)); |
| 154 | swV5 = _mm_set1_ps( -6.0/(d_scalar*d_scalar*d_scalar*d_scalar*d_scalar)); |
| 155 | swF2 = _mm_set1_ps(-30.0/(d_scalar*d_scalar*d_scalar)); |
| 156 | swF3 = _mm_set1_ps( 60.0/(d_scalar*d_scalar*d_scalar*d_scalar)); |
| 157 | swF4 = _mm_set1_ps(-30.0/(d_scalar*d_scalar*d_scalar*d_scalar*d_scalar)); |
| 158 | |
| 159 | /* Avoid stupid compiler warnings */ |
| 160 | jnrA = jnrB = jnrC = jnrD = 0; |
| 161 | j_coord_offsetA = 0; |
| 162 | j_coord_offsetB = 0; |
| 163 | j_coord_offsetC = 0; |
| 164 | j_coord_offsetD = 0; |
| 165 | |
| 166 | outeriter = 0; |
| 167 | inneriter = 0; |
| 168 | |
| 169 | for(iidx=0;iidx<4*DIM3;iidx++) |
| 170 | { |
| 171 | scratch[iidx] = 0.0; |
| 172 | } |
| 173 | |
| 174 | /* Start outer loop over neighborlists */ |
| 175 | for(iidx=0; iidx<nri; iidx++) |
| 176 | { |
| 177 | /* Load shift vector for this list */ |
| 178 | i_shift_offset = DIM3*shiftidx[iidx]; |
| 179 | |
| 180 | /* Load limits for loop over neighbors */ |
| 181 | j_index_start = jindex[iidx]; |
| 182 | j_index_end = jindex[iidx+1]; |
| 183 | |
| 184 | /* Get outer coordinate index */ |
| 185 | inr = iinr[iidx]; |
| 186 | i_coord_offset = DIM3*inr; |
| 187 | |
| 188 | /* Load i particle coords and add shift vector */ |
| 189 | gmx_mm_load_shift_and_3rvec_broadcast_ps(shiftvec+i_shift_offset,x+i_coord_offset, |
| 190 | &ix0,&iy0,&iz0,&ix1,&iy1,&iz1,&ix2,&iy2,&iz2); |
| 191 | |
| 192 | fix0 = _mm_setzero_ps(); |
| 193 | fiy0 = _mm_setzero_ps(); |
| 194 | fiz0 = _mm_setzero_ps(); |
| 195 | fix1 = _mm_setzero_ps(); |
| 196 | fiy1 = _mm_setzero_ps(); |
| 197 | fiz1 = _mm_setzero_ps(); |
| 198 | fix2 = _mm_setzero_ps(); |
| 199 | fiy2 = _mm_setzero_ps(); |
| 200 | fiz2 = _mm_setzero_ps(); |
| 201 | |
| 202 | /* Reset potential sums */ |
| 203 | velecsum = _mm_setzero_ps(); |
| 204 | vvdwsum = _mm_setzero_ps(); |
| 205 | |
| 206 | /* Start inner kernel loop */ |
| 207 | for(jidx=j_index_start; jidx<j_index_end && jjnr[jidx+3]>=0; jidx+=4) |
| 208 | { |
| 209 | |
| 210 | /* Get j neighbor index, and coordinate index */ |
| 211 | jnrA = jjnr[jidx]; |
| 212 | jnrB = jjnr[jidx+1]; |
| 213 | jnrC = jjnr[jidx+2]; |
| 214 | jnrD = jjnr[jidx+3]; |
| 215 | j_coord_offsetA = DIM3*jnrA; |
| 216 | j_coord_offsetB = DIM3*jnrB; |
| 217 | j_coord_offsetC = DIM3*jnrC; |
| 218 | j_coord_offsetD = DIM3*jnrD; |
| 219 | |
| 220 | /* load j atom coordinates */ |
| 221 | gmx_mm_load_1rvec_4ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB, |
| 222 | x+j_coord_offsetC,x+j_coord_offsetD, |
| 223 | &jx0,&jy0,&jz0); |
| 224 | |
| 225 | /* Calculate displacement vector */ |
| 226 | dx00 = _mm_sub_ps(ix0,jx0); |
| 227 | dy00 = _mm_sub_ps(iy0,jy0); |
| 228 | dz00 = _mm_sub_ps(iz0,jz0); |
| 229 | dx10 = _mm_sub_ps(ix1,jx0); |
| 230 | dy10 = _mm_sub_ps(iy1,jy0); |
| 231 | dz10 = _mm_sub_ps(iz1,jz0); |
| 232 | dx20 = _mm_sub_ps(ix2,jx0); |
| 233 | dy20 = _mm_sub_ps(iy2,jy0); |
| 234 | dz20 = _mm_sub_ps(iz2,jz0); |
| 235 | |
| 236 | /* Calculate squared distance and things based on it */ |
| 237 | rsq00 = gmx_mm_calc_rsq_ps(dx00,dy00,dz00); |
| 238 | rsq10 = gmx_mm_calc_rsq_ps(dx10,dy10,dz10); |
| 239 | rsq20 = gmx_mm_calc_rsq_ps(dx20,dy20,dz20); |
| 240 | |
| 241 | rinv00 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq00); |
| 242 | rinv10 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq10); |
| 243 | rinv20 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq20); |
| 244 | |
| 245 | rinvsq00 = _mm_mul_ps(rinv00,rinv00); |
| 246 | rinvsq10 = _mm_mul_ps(rinv10,rinv10); |
| 247 | rinvsq20 = _mm_mul_ps(rinv20,rinv20); |
| 248 | |
| 249 | /* Load parameters for j particles */ |
| 250 | jq0 = gmx_mm_load_4real_swizzle_ps(charge+jnrA+0,charge+jnrB+0, |
| 251 | charge+jnrC+0,charge+jnrD+0); |
| 252 | vdwjidx0A = 2*vdwtype[jnrA+0]; |
| 253 | vdwjidx0B = 2*vdwtype[jnrB+0]; |
| 254 | vdwjidx0C = 2*vdwtype[jnrC+0]; |
| 255 | vdwjidx0D = 2*vdwtype[jnrD+0]; |
| 256 | |
| 257 | fjx0 = _mm_setzero_ps(); |
| 258 | fjy0 = _mm_setzero_ps(); |
| 259 | fjz0 = _mm_setzero_ps(); |
| 260 | |
| 261 | /************************** |
| 262 | * CALCULATE INTERACTIONS * |
| 263 | **************************/ |
| 264 | |
| 265 | if (gmx_mm_any_lt(rsq00,rcutoff2)) |
| 266 | { |
| 267 | |
| 268 | r00 = _mm_mul_ps(rsq00,rinv00); |
| 269 | |
| 270 | /* Compute parameters for interactions between i and j atoms */ |
| 271 | qq00 = _mm_mul_ps(iq0,jq0); |
| 272 | gmx_mm_load_4pair_swizzle_ps(vdwparam+vdwioffset0+vdwjidx0A, |
| 273 | vdwparam+vdwioffset0+vdwjidx0B, |
| 274 | vdwparam+vdwioffset0+vdwjidx0C, |
| 275 | vdwparam+vdwioffset0+vdwjidx0D, |
| 276 | &c6_00,&c12_00); |
| 277 | |
| 278 | /* EWALD ELECTROSTATICS */ |
| 279 | |
| 280 | /* Calculate Ewald table index by multiplying r with scale and truncate to integer */ |
| 281 | ewrt = _mm_mul_ps(r00,ewtabscale); |
| 282 | ewitab = _mm_cvttps_epi32(ewrt); |
| 283 | eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR)__extension__ ({ __m128 __X = (ewrt); (__m128) __builtin_ia32_roundps ((__v4sf)__X, ((0x00 | 0x01))); })); |
| 284 | ewitab = _mm_slli_epi32(ewitab,2); |
| 285 | ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(0) & 3];})) ); |
| 286 | ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(1) & 3];})) ); |
| 287 | ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(2) & 3];})) ); |
| 288 | ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(3) & 3];})) ); |
| 289 | _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn)do { __m128 tmp3, tmp2, tmp1, tmp0; tmp0 = _mm_unpacklo_ps((ewtabF ), (ewtabD)); tmp2 = _mm_unpacklo_ps((ewtabV), (ewtabFn)); tmp1 = _mm_unpackhi_ps((ewtabF), (ewtabD)); tmp3 = _mm_unpackhi_ps ((ewtabV), (ewtabFn)); (ewtabF) = _mm_movelh_ps(tmp0, tmp2); ( ewtabD) = _mm_movehl_ps(tmp2, tmp0); (ewtabV) = _mm_movelh_ps (tmp1, tmp3); (ewtabFn) = _mm_movehl_ps(tmp3, tmp1); } while ( 0); |
| 290 | felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD)); |
| 291 | velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec))); |
| 292 | velec = _mm_mul_ps(qq00,_mm_sub_ps(rinv00,velec)); |
| 293 | felec = _mm_mul_ps(_mm_mul_ps(qq00,rinv00),_mm_sub_ps(rinvsq00,felec)); |
| 294 | |
| 295 | /* LENNARD-JONES DISPERSION/REPULSION */ |
| 296 | |
| 297 | rinvsix = _mm_mul_ps(_mm_mul_ps(rinvsq00,rinvsq00),rinvsq00); |
| 298 | vvdw6 = _mm_mul_ps(c6_00,rinvsix); |
| 299 | vvdw12 = _mm_mul_ps(c12_00,_mm_mul_ps(rinvsix,rinvsix)); |
| 300 | vvdw = _mm_sub_ps( _mm_mul_ps(vvdw12,one_twelfth) , _mm_mul_ps(vvdw6,one_sixth) ); |
| 301 | fvdw = _mm_mul_ps(_mm_sub_ps(vvdw12,vvdw6),rinvsq00); |
| 302 | |
| 303 | d = _mm_sub_ps(r00,rswitch); |
| 304 | d = _mm_max_ps(d,_mm_setzero_ps()); |
| 305 | d2 = _mm_mul_ps(d,d); |
| 306 | sw = _mm_add_ps(one,_mm_mul_ps(d2,_mm_mul_ps(d,_mm_add_ps(swV3,_mm_mul_ps(d,_mm_add_ps(swV4,_mm_mul_ps(d,swV5))))))); |
| 307 | |
| 308 | dsw = _mm_mul_ps(d2,_mm_add_ps(swF2,_mm_mul_ps(d,_mm_add_ps(swF3,_mm_mul_ps(d,swF4))))); |
| 309 | |
| 310 | /* Evaluate switch function */ |
| 311 | /* fscal'=f'/r=-(v*sw)'/r=-(v'*sw+v*dsw)/r=-v'*sw/r-v*dsw/r=fscal*sw-v*dsw/r */ |
| 312 | felec = _mm_sub_ps( _mm_mul_ps(felec,sw) , _mm_mul_ps(rinv00,_mm_mul_ps(velec,dsw)) ); |
| 313 | fvdw = _mm_sub_ps( _mm_mul_ps(fvdw,sw) , _mm_mul_ps(rinv00,_mm_mul_ps(vvdw,dsw)) ); |
| 314 | velec = _mm_mul_ps(velec,sw); |
| 315 | vvdw = _mm_mul_ps(vvdw,sw); |
| 316 | cutoff_mask = _mm_cmplt_ps(rsq00,rcutoff2); |
| 317 | |
| 318 | /* Update potential sum for this i atom from the interaction with this j atom. */ |
| 319 | velec = _mm_and_ps(velec,cutoff_mask); |
| 320 | velecsum = _mm_add_ps(velecsum,velec); |
| 321 | vvdw = _mm_and_ps(vvdw,cutoff_mask); |
| 322 | vvdwsum = _mm_add_ps(vvdwsum,vvdw); |
| 323 | |
| 324 | fscal = _mm_add_ps(felec,fvdw); |
| 325 | |
| 326 | fscal = _mm_and_ps(fscal,cutoff_mask); |
| 327 | |
| 328 | /* Calculate temporary vectorial force */ |
| 329 | tx = _mm_mul_ps(fscal,dx00); |
| 330 | ty = _mm_mul_ps(fscal,dy00); |
| 331 | tz = _mm_mul_ps(fscal,dz00); |
| 332 | |
| 333 | /* Update vectorial force */ |
| 334 | fix0 = _mm_add_ps(fix0,tx); |
| 335 | fiy0 = _mm_add_ps(fiy0,ty); |
| 336 | fiz0 = _mm_add_ps(fiz0,tz); |
| 337 | |
| 338 | fjx0 = _mm_add_ps(fjx0,tx); |
| 339 | fjy0 = _mm_add_ps(fjy0,ty); |
| 340 | fjz0 = _mm_add_ps(fjz0,tz); |
| 341 | |
| 342 | } |
| 343 | |
| 344 | /************************** |
| 345 | * CALCULATE INTERACTIONS * |
| 346 | **************************/ |
| 347 | |
| 348 | if (gmx_mm_any_lt(rsq10,rcutoff2)) |
| 349 | { |
| 350 | |
| 351 | r10 = _mm_mul_ps(rsq10,rinv10); |
| 352 | |
| 353 | /* Compute parameters for interactions between i and j atoms */ |
| 354 | qq10 = _mm_mul_ps(iq1,jq0); |
| 355 | |
| 356 | /* EWALD ELECTROSTATICS */ |
| 357 | |
| 358 | /* Calculate Ewald table index by multiplying r with scale and truncate to integer */ |
| 359 | ewrt = _mm_mul_ps(r10,ewtabscale); |
| 360 | ewitab = _mm_cvttps_epi32(ewrt); |
| 361 | eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR)__extension__ ({ __m128 __X = (ewrt); (__m128) __builtin_ia32_roundps ((__v4sf)__X, ((0x00 | 0x01))); })); |
| 362 | ewitab = _mm_slli_epi32(ewitab,2); |
| 363 | ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(0) & 3];})) ); |
| 364 | ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(1) & 3];})) ); |
| 365 | ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(2) & 3];})) ); |
| 366 | ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(3) & 3];})) ); |
| 367 | _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn)do { __m128 tmp3, tmp2, tmp1, tmp0; tmp0 = _mm_unpacklo_ps((ewtabF ), (ewtabD)); tmp2 = _mm_unpacklo_ps((ewtabV), (ewtabFn)); tmp1 = _mm_unpackhi_ps((ewtabF), (ewtabD)); tmp3 = _mm_unpackhi_ps ((ewtabV), (ewtabFn)); (ewtabF) = _mm_movelh_ps(tmp0, tmp2); ( ewtabD) = _mm_movehl_ps(tmp2, tmp0); (ewtabV) = _mm_movelh_ps (tmp1, tmp3); (ewtabFn) = _mm_movehl_ps(tmp3, tmp1); } while ( 0); |
| 368 | felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD)); |
| 369 | velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec))); |
| 370 | velec = _mm_mul_ps(qq10,_mm_sub_ps(rinv10,velec)); |
| 371 | felec = _mm_mul_ps(_mm_mul_ps(qq10,rinv10),_mm_sub_ps(rinvsq10,felec)); |
| 372 | |
| 373 | d = _mm_sub_ps(r10,rswitch); |
| 374 | d = _mm_max_ps(d,_mm_setzero_ps()); |
| 375 | d2 = _mm_mul_ps(d,d); |
| 376 | sw = _mm_add_ps(one,_mm_mul_ps(d2,_mm_mul_ps(d,_mm_add_ps(swV3,_mm_mul_ps(d,_mm_add_ps(swV4,_mm_mul_ps(d,swV5))))))); |
| 377 | |
| 378 | dsw = _mm_mul_ps(d2,_mm_add_ps(swF2,_mm_mul_ps(d,_mm_add_ps(swF3,_mm_mul_ps(d,swF4))))); |
| 379 | |
| 380 | /* Evaluate switch function */ |
| 381 | /* fscal'=f'/r=-(v*sw)'/r=-(v'*sw+v*dsw)/r=-v'*sw/r-v*dsw/r=fscal*sw-v*dsw/r */ |
| 382 | felec = _mm_sub_ps( _mm_mul_ps(felec,sw) , _mm_mul_ps(rinv10,_mm_mul_ps(velec,dsw)) ); |
| 383 | velec = _mm_mul_ps(velec,sw); |
| 384 | cutoff_mask = _mm_cmplt_ps(rsq10,rcutoff2); |
| 385 | |
| 386 | /* Update potential sum for this i atom from the interaction with this j atom. */ |
| 387 | velec = _mm_and_ps(velec,cutoff_mask); |
| 388 | velecsum = _mm_add_ps(velecsum,velec); |
| 389 | |
| 390 | fscal = felec; |
| 391 | |
| 392 | fscal = _mm_and_ps(fscal,cutoff_mask); |
| 393 | |
| 394 | /* Calculate temporary vectorial force */ |
| 395 | tx = _mm_mul_ps(fscal,dx10); |
| 396 | ty = _mm_mul_ps(fscal,dy10); |
| 397 | tz = _mm_mul_ps(fscal,dz10); |
| 398 | |
| 399 | /* Update vectorial force */ |
| 400 | fix1 = _mm_add_ps(fix1,tx); |
| 401 | fiy1 = _mm_add_ps(fiy1,ty); |
| 402 | fiz1 = _mm_add_ps(fiz1,tz); |
| 403 | |
| 404 | fjx0 = _mm_add_ps(fjx0,tx); |
| 405 | fjy0 = _mm_add_ps(fjy0,ty); |
| 406 | fjz0 = _mm_add_ps(fjz0,tz); |
| 407 | |
| 408 | } |
| 409 | |
| 410 | /************************** |
| 411 | * CALCULATE INTERACTIONS * |
| 412 | **************************/ |
| 413 | |
| 414 | if (gmx_mm_any_lt(rsq20,rcutoff2)) |
| 415 | { |
| 416 | |
| 417 | r20 = _mm_mul_ps(rsq20,rinv20); |
| 418 | |
| 419 | /* Compute parameters for interactions between i and j atoms */ |
| 420 | qq20 = _mm_mul_ps(iq2,jq0); |
| 421 | |
| 422 | /* EWALD ELECTROSTATICS */ |
| 423 | |
| 424 | /* Calculate Ewald table index by multiplying r with scale and truncate to integer */ |
| 425 | ewrt = _mm_mul_ps(r20,ewtabscale); |
| 426 | ewitab = _mm_cvttps_epi32(ewrt); |
| 427 | eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR)__extension__ ({ __m128 __X = (ewrt); (__m128) __builtin_ia32_roundps ((__v4sf)__X, ((0x00 | 0x01))); })); |
| 428 | ewitab = _mm_slli_epi32(ewitab,2); |
| 429 | ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(0) & 3];})) ); |
| 430 | ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(1) & 3];})) ); |
| 431 | ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(2) & 3];})) ); |
| 432 | ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(3) & 3];})) ); |
| 433 | _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn)do { __m128 tmp3, tmp2, tmp1, tmp0; tmp0 = _mm_unpacklo_ps((ewtabF ), (ewtabD)); tmp2 = _mm_unpacklo_ps((ewtabV), (ewtabFn)); tmp1 = _mm_unpackhi_ps((ewtabF), (ewtabD)); tmp3 = _mm_unpackhi_ps ((ewtabV), (ewtabFn)); (ewtabF) = _mm_movelh_ps(tmp0, tmp2); ( ewtabD) = _mm_movehl_ps(tmp2, tmp0); (ewtabV) = _mm_movelh_ps (tmp1, tmp3); (ewtabFn) = _mm_movehl_ps(tmp3, tmp1); } while ( 0); |
| 434 | felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD)); |
| 435 | velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec))); |
| 436 | velec = _mm_mul_ps(qq20,_mm_sub_ps(rinv20,velec)); |
| 437 | felec = _mm_mul_ps(_mm_mul_ps(qq20,rinv20),_mm_sub_ps(rinvsq20,felec)); |
| 438 | |
| 439 | d = _mm_sub_ps(r20,rswitch); |
| 440 | d = _mm_max_ps(d,_mm_setzero_ps()); |
| 441 | d2 = _mm_mul_ps(d,d); |
| 442 | sw = _mm_add_ps(one,_mm_mul_ps(d2,_mm_mul_ps(d,_mm_add_ps(swV3,_mm_mul_ps(d,_mm_add_ps(swV4,_mm_mul_ps(d,swV5))))))); |
| 443 | |
| 444 | dsw = _mm_mul_ps(d2,_mm_add_ps(swF2,_mm_mul_ps(d,_mm_add_ps(swF3,_mm_mul_ps(d,swF4))))); |
| 445 | |
| 446 | /* Evaluate switch function */ |
| 447 | /* fscal'=f'/r=-(v*sw)'/r=-(v'*sw+v*dsw)/r=-v'*sw/r-v*dsw/r=fscal*sw-v*dsw/r */ |
| 448 | felec = _mm_sub_ps( _mm_mul_ps(felec,sw) , _mm_mul_ps(rinv20,_mm_mul_ps(velec,dsw)) ); |
| 449 | velec = _mm_mul_ps(velec,sw); |
| 450 | cutoff_mask = _mm_cmplt_ps(rsq20,rcutoff2); |
| 451 | |
| 452 | /* Update potential sum for this i atom from the interaction with this j atom. */ |
| 453 | velec = _mm_and_ps(velec,cutoff_mask); |
| 454 | velecsum = _mm_add_ps(velecsum,velec); |
| 455 | |
| 456 | fscal = felec; |
| 457 | |
| 458 | fscal = _mm_and_ps(fscal,cutoff_mask); |
| 459 | |
| 460 | /* Calculate temporary vectorial force */ |
| 461 | tx = _mm_mul_ps(fscal,dx20); |
| 462 | ty = _mm_mul_ps(fscal,dy20); |
| 463 | tz = _mm_mul_ps(fscal,dz20); |
| 464 | |
| 465 | /* Update vectorial force */ |
| 466 | fix2 = _mm_add_ps(fix2,tx); |
| 467 | fiy2 = _mm_add_ps(fiy2,ty); |
| 468 | fiz2 = _mm_add_ps(fiz2,tz); |
| 469 | |
| 470 | fjx0 = _mm_add_ps(fjx0,tx); |
| 471 | fjy0 = _mm_add_ps(fjy0,ty); |
| 472 | fjz0 = _mm_add_ps(fjz0,tz); |
| 473 | |
| 474 | } |
| 475 | |
| 476 | fjptrA = f+j_coord_offsetA; |
| 477 | fjptrB = f+j_coord_offsetB; |
| 478 | fjptrC = f+j_coord_offsetC; |
| 479 | fjptrD = f+j_coord_offsetD; |
| 480 | |
| 481 | gmx_mm_decrement_1rvec_4ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,fjx0,fjy0,fjz0); |
| 482 | |
| 483 | /* Inner loop uses 213 flops */ |
| 484 | } |
| 485 | |
| 486 | if(jidx<j_index_end) |
| 487 | { |
| 488 | |
| 489 | /* Get j neighbor index, and coordinate index */ |
| 490 | jnrlistA = jjnr[jidx]; |
| 491 | jnrlistB = jjnr[jidx+1]; |
| 492 | jnrlistC = jjnr[jidx+2]; |
| 493 | jnrlistD = jjnr[jidx+3]; |
| 494 | /* Sign of each element will be negative for non-real atoms. |
| 495 | * This mask will be 0xFFFFFFFF for dummy entries and 0x0 for real ones, |
| 496 | * so use it as val = _mm_andnot_ps(mask,val) to clear dummy entries. |
| 497 | */ |
| 498 | dummy_mask = gmx_mm_castsi128_ps_mm_castsi128_ps(_mm_cmplt_epi32(_mm_loadu_si128((const __m128i *)(jjnr+jidx)),_mm_setzero_si128())); |
| 499 | jnrA = (jnrlistA>=0) ? jnrlistA : 0; |
| 500 | jnrB = (jnrlistB>=0) ? jnrlistB : 0; |
| 501 | jnrC = (jnrlistC>=0) ? jnrlistC : 0; |
| 502 | jnrD = (jnrlistD>=0) ? jnrlistD : 0; |
| 503 | j_coord_offsetA = DIM3*jnrA; |
| 504 | j_coord_offsetB = DIM3*jnrB; |
| 505 | j_coord_offsetC = DIM3*jnrC; |
| 506 | j_coord_offsetD = DIM3*jnrD; |
| 507 | |
| 508 | /* load j atom coordinates */ |
| 509 | gmx_mm_load_1rvec_4ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB, |
| 510 | x+j_coord_offsetC,x+j_coord_offsetD, |
| 511 | &jx0,&jy0,&jz0); |
| 512 | |
| 513 | /* Calculate displacement vector */ |
| 514 | dx00 = _mm_sub_ps(ix0,jx0); |
| 515 | dy00 = _mm_sub_ps(iy0,jy0); |
| 516 | dz00 = _mm_sub_ps(iz0,jz0); |
| 517 | dx10 = _mm_sub_ps(ix1,jx0); |
| 518 | dy10 = _mm_sub_ps(iy1,jy0); |
| 519 | dz10 = _mm_sub_ps(iz1,jz0); |
| 520 | dx20 = _mm_sub_ps(ix2,jx0); |
| 521 | dy20 = _mm_sub_ps(iy2,jy0); |
| 522 | dz20 = _mm_sub_ps(iz2,jz0); |
| 523 | |
| 524 | /* Calculate squared distance and things based on it */ |
| 525 | rsq00 = gmx_mm_calc_rsq_ps(dx00,dy00,dz00); |
| 526 | rsq10 = gmx_mm_calc_rsq_ps(dx10,dy10,dz10); |
| 527 | rsq20 = gmx_mm_calc_rsq_ps(dx20,dy20,dz20); |
| 528 | |
| 529 | rinv00 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq00); |
| 530 | rinv10 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq10); |
| 531 | rinv20 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq20); |
| 532 | |
| 533 | rinvsq00 = _mm_mul_ps(rinv00,rinv00); |
| 534 | rinvsq10 = _mm_mul_ps(rinv10,rinv10); |
| 535 | rinvsq20 = _mm_mul_ps(rinv20,rinv20); |
| 536 | |
| 537 | /* Load parameters for j particles */ |
| 538 | jq0 = gmx_mm_load_4real_swizzle_ps(charge+jnrA+0,charge+jnrB+0, |
| 539 | charge+jnrC+0,charge+jnrD+0); |
| 540 | vdwjidx0A = 2*vdwtype[jnrA+0]; |
| 541 | vdwjidx0B = 2*vdwtype[jnrB+0]; |
| 542 | vdwjidx0C = 2*vdwtype[jnrC+0]; |
| 543 | vdwjidx0D = 2*vdwtype[jnrD+0]; |
| 544 | |
| 545 | fjx0 = _mm_setzero_ps(); |
| 546 | fjy0 = _mm_setzero_ps(); |
| 547 | fjz0 = _mm_setzero_ps(); |
| 548 | |
| 549 | /************************** |
| 550 | * CALCULATE INTERACTIONS * |
| 551 | **************************/ |
| 552 | |
| 553 | if (gmx_mm_any_lt(rsq00,rcutoff2)) |
| 554 | { |
| 555 | |
| 556 | r00 = _mm_mul_ps(rsq00,rinv00); |
| 557 | r00 = _mm_andnot_ps(dummy_mask,r00); |
| 558 | |
| 559 | /* Compute parameters for interactions between i and j atoms */ |
| 560 | qq00 = _mm_mul_ps(iq0,jq0); |
| 561 | gmx_mm_load_4pair_swizzle_ps(vdwparam+vdwioffset0+vdwjidx0A, |
| 562 | vdwparam+vdwioffset0+vdwjidx0B, |
| 563 | vdwparam+vdwioffset0+vdwjidx0C, |
| 564 | vdwparam+vdwioffset0+vdwjidx0D, |
| 565 | &c6_00,&c12_00); |
| 566 | |
| 567 | /* EWALD ELECTROSTATICS */ |
| 568 | |
| 569 | /* Calculate Ewald table index by multiplying r with scale and truncate to integer */ |
| 570 | ewrt = _mm_mul_ps(r00,ewtabscale); |
| 571 | ewitab = _mm_cvttps_epi32(ewrt); |
| 572 | eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR)__extension__ ({ __m128 __X = (ewrt); (__m128) __builtin_ia32_roundps ((__v4sf)__X, ((0x00 | 0x01))); })); |
| 573 | ewitab = _mm_slli_epi32(ewitab,2); |
| 574 | ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(0) & 3];})) ); |
| 575 | ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(1) & 3];})) ); |
| 576 | ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(2) & 3];})) ); |
| 577 | ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(3) & 3];})) ); |
| 578 | _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn)do { __m128 tmp3, tmp2, tmp1, tmp0; tmp0 = _mm_unpacklo_ps((ewtabF ), (ewtabD)); tmp2 = _mm_unpacklo_ps((ewtabV), (ewtabFn)); tmp1 = _mm_unpackhi_ps((ewtabF), (ewtabD)); tmp3 = _mm_unpackhi_ps ((ewtabV), (ewtabFn)); (ewtabF) = _mm_movelh_ps(tmp0, tmp2); ( ewtabD) = _mm_movehl_ps(tmp2, tmp0); (ewtabV) = _mm_movelh_ps (tmp1, tmp3); (ewtabFn) = _mm_movehl_ps(tmp3, tmp1); } while ( 0); |
| 579 | felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD)); |
| 580 | velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec))); |
| 581 | velec = _mm_mul_ps(qq00,_mm_sub_ps(rinv00,velec)); |
| 582 | felec = _mm_mul_ps(_mm_mul_ps(qq00,rinv00),_mm_sub_ps(rinvsq00,felec)); |
| 583 | |
| 584 | /* LENNARD-JONES DISPERSION/REPULSION */ |
| 585 | |
| 586 | rinvsix = _mm_mul_ps(_mm_mul_ps(rinvsq00,rinvsq00),rinvsq00); |
| 587 | vvdw6 = _mm_mul_ps(c6_00,rinvsix); |
| 588 | vvdw12 = _mm_mul_ps(c12_00,_mm_mul_ps(rinvsix,rinvsix)); |
| 589 | vvdw = _mm_sub_ps( _mm_mul_ps(vvdw12,one_twelfth) , _mm_mul_ps(vvdw6,one_sixth) ); |
| 590 | fvdw = _mm_mul_ps(_mm_sub_ps(vvdw12,vvdw6),rinvsq00); |
| 591 | |
| 592 | d = _mm_sub_ps(r00,rswitch); |
| 593 | d = _mm_max_ps(d,_mm_setzero_ps()); |
| 594 | d2 = _mm_mul_ps(d,d); |
| 595 | sw = _mm_add_ps(one,_mm_mul_ps(d2,_mm_mul_ps(d,_mm_add_ps(swV3,_mm_mul_ps(d,_mm_add_ps(swV4,_mm_mul_ps(d,swV5))))))); |
| 596 | |
| 597 | dsw = _mm_mul_ps(d2,_mm_add_ps(swF2,_mm_mul_ps(d,_mm_add_ps(swF3,_mm_mul_ps(d,swF4))))); |
| 598 | |
| 599 | /* Evaluate switch function */ |
| 600 | /* fscal'=f'/r=-(v*sw)'/r=-(v'*sw+v*dsw)/r=-v'*sw/r-v*dsw/r=fscal*sw-v*dsw/r */ |
| 601 | felec = _mm_sub_ps( _mm_mul_ps(felec,sw) , _mm_mul_ps(rinv00,_mm_mul_ps(velec,dsw)) ); |
| 602 | fvdw = _mm_sub_ps( _mm_mul_ps(fvdw,sw) , _mm_mul_ps(rinv00,_mm_mul_ps(vvdw,dsw)) ); |
| 603 | velec = _mm_mul_ps(velec,sw); |
| 604 | vvdw = _mm_mul_ps(vvdw,sw); |
| 605 | cutoff_mask = _mm_cmplt_ps(rsq00,rcutoff2); |
| 606 | |
| 607 | /* Update potential sum for this i atom from the interaction with this j atom. */ |
| 608 | velec = _mm_and_ps(velec,cutoff_mask); |
| 609 | velec = _mm_andnot_ps(dummy_mask,velec); |
| 610 | velecsum = _mm_add_ps(velecsum,velec); |
| 611 | vvdw = _mm_and_ps(vvdw,cutoff_mask); |
| 612 | vvdw = _mm_andnot_ps(dummy_mask,vvdw); |
| 613 | vvdwsum = _mm_add_ps(vvdwsum,vvdw); |
| 614 | |
| 615 | fscal = _mm_add_ps(felec,fvdw); |
| 616 | |
| 617 | fscal = _mm_and_ps(fscal,cutoff_mask); |
| 618 | |
| 619 | fscal = _mm_andnot_ps(dummy_mask,fscal); |
| 620 | |
| 621 | /* Calculate temporary vectorial force */ |
| 622 | tx = _mm_mul_ps(fscal,dx00); |
| 623 | ty = _mm_mul_ps(fscal,dy00); |
| 624 | tz = _mm_mul_ps(fscal,dz00); |
| 625 | |
| 626 | /* Update vectorial force */ |
| 627 | fix0 = _mm_add_ps(fix0,tx); |
| 628 | fiy0 = _mm_add_ps(fiy0,ty); |
| 629 | fiz0 = _mm_add_ps(fiz0,tz); |
| 630 | |
| 631 | fjx0 = _mm_add_ps(fjx0,tx); |
| 632 | fjy0 = _mm_add_ps(fjy0,ty); |
| 633 | fjz0 = _mm_add_ps(fjz0,tz); |
| 634 | |
| 635 | } |
| 636 | |
| 637 | /************************** |
| 638 | * CALCULATE INTERACTIONS * |
| 639 | **************************/ |
| 640 | |
| 641 | if (gmx_mm_any_lt(rsq10,rcutoff2)) |
| 642 | { |
| 643 | |
| 644 | r10 = _mm_mul_ps(rsq10,rinv10); |
| 645 | r10 = _mm_andnot_ps(dummy_mask,r10); |
| 646 | |
| 647 | /* Compute parameters for interactions between i and j atoms */ |
| 648 | qq10 = _mm_mul_ps(iq1,jq0); |
| 649 | |
| 650 | /* EWALD ELECTROSTATICS */ |
| 651 | |
| 652 | /* Calculate Ewald table index by multiplying r with scale and truncate to integer */ |
| 653 | ewrt = _mm_mul_ps(r10,ewtabscale); |
| 654 | ewitab = _mm_cvttps_epi32(ewrt); |
| 655 | eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR)__extension__ ({ __m128 __X = (ewrt); (__m128) __builtin_ia32_roundps ((__v4sf)__X, ((0x00 | 0x01))); })); |
| 656 | ewitab = _mm_slli_epi32(ewitab,2); |
| 657 | ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(0) & 3];})) ); |
| 658 | ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(1) & 3];})) ); |
| 659 | ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(2) & 3];})) ); |
| 660 | ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(3) & 3];})) ); |
| 661 | _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn)do { __m128 tmp3, tmp2, tmp1, tmp0; tmp0 = _mm_unpacklo_ps((ewtabF ), (ewtabD)); tmp2 = _mm_unpacklo_ps((ewtabV), (ewtabFn)); tmp1 = _mm_unpackhi_ps((ewtabF), (ewtabD)); tmp3 = _mm_unpackhi_ps ((ewtabV), (ewtabFn)); (ewtabF) = _mm_movelh_ps(tmp0, tmp2); ( ewtabD) = _mm_movehl_ps(tmp2, tmp0); (ewtabV) = _mm_movelh_ps (tmp1, tmp3); (ewtabFn) = _mm_movehl_ps(tmp3, tmp1); } while ( 0); |
| 662 | felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD)); |
| 663 | velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec))); |
| 664 | velec = _mm_mul_ps(qq10,_mm_sub_ps(rinv10,velec)); |
| 665 | felec = _mm_mul_ps(_mm_mul_ps(qq10,rinv10),_mm_sub_ps(rinvsq10,felec)); |
| 666 | |
| 667 | d = _mm_sub_ps(r10,rswitch); |
| 668 | d = _mm_max_ps(d,_mm_setzero_ps()); |
| 669 | d2 = _mm_mul_ps(d,d); |
| 670 | sw = _mm_add_ps(one,_mm_mul_ps(d2,_mm_mul_ps(d,_mm_add_ps(swV3,_mm_mul_ps(d,_mm_add_ps(swV4,_mm_mul_ps(d,swV5))))))); |
| 671 | |
| 672 | dsw = _mm_mul_ps(d2,_mm_add_ps(swF2,_mm_mul_ps(d,_mm_add_ps(swF3,_mm_mul_ps(d,swF4))))); |
| 673 | |
| 674 | /* Evaluate switch function */ |
| 675 | /* fscal'=f'/r=-(v*sw)'/r=-(v'*sw+v*dsw)/r=-v'*sw/r-v*dsw/r=fscal*sw-v*dsw/r */ |
| 676 | felec = _mm_sub_ps( _mm_mul_ps(felec,sw) , _mm_mul_ps(rinv10,_mm_mul_ps(velec,dsw)) ); |
| 677 | velec = _mm_mul_ps(velec,sw); |
| 678 | cutoff_mask = _mm_cmplt_ps(rsq10,rcutoff2); |
| 679 | |
| 680 | /* Update potential sum for this i atom from the interaction with this j atom. */ |
| 681 | velec = _mm_and_ps(velec,cutoff_mask); |
| 682 | velec = _mm_andnot_ps(dummy_mask,velec); |
| 683 | velecsum = _mm_add_ps(velecsum,velec); |
| 684 | |
| 685 | fscal = felec; |
| 686 | |
| 687 | fscal = _mm_and_ps(fscal,cutoff_mask); |
| 688 | |
| 689 | fscal = _mm_andnot_ps(dummy_mask,fscal); |
| 690 | |
| 691 | /* Calculate temporary vectorial force */ |
| 692 | tx = _mm_mul_ps(fscal,dx10); |
| 693 | ty = _mm_mul_ps(fscal,dy10); |
| 694 | tz = _mm_mul_ps(fscal,dz10); |
| 695 | |
| 696 | /* Update vectorial force */ |
| 697 | fix1 = _mm_add_ps(fix1,tx); |
| 698 | fiy1 = _mm_add_ps(fiy1,ty); |
| 699 | fiz1 = _mm_add_ps(fiz1,tz); |
| 700 | |
| 701 | fjx0 = _mm_add_ps(fjx0,tx); |
| 702 | fjy0 = _mm_add_ps(fjy0,ty); |
| 703 | fjz0 = _mm_add_ps(fjz0,tz); |
| 704 | |
| 705 | } |
| 706 | |
| 707 | /************************** |
| 708 | * CALCULATE INTERACTIONS * |
| 709 | **************************/ |
| 710 | |
| 711 | if (gmx_mm_any_lt(rsq20,rcutoff2)) |
| 712 | { |
| 713 | |
| 714 | r20 = _mm_mul_ps(rsq20,rinv20); |
| 715 | r20 = _mm_andnot_ps(dummy_mask,r20); |
| 716 | |
| 717 | /* Compute parameters for interactions between i and j atoms */ |
| 718 | qq20 = _mm_mul_ps(iq2,jq0); |
| 719 | |
| 720 | /* EWALD ELECTROSTATICS */ |
| 721 | |
| 722 | /* Calculate Ewald table index by multiplying r with scale and truncate to integer */ |
| 723 | ewrt = _mm_mul_ps(r20,ewtabscale); |
| 724 | ewitab = _mm_cvttps_epi32(ewrt); |
| 725 | eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR)__extension__ ({ __m128 __X = (ewrt); (__m128) __builtin_ia32_roundps ((__v4sf)__X, ((0x00 | 0x01))); })); |
| 726 | ewitab = _mm_slli_epi32(ewitab,2); |
| 727 | ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(0) & 3];})) ); |
| 728 | ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(1) & 3];})) ); |
| 729 | ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(2) & 3];})) ); |
| 730 | ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(3) & 3];})) ); |
| 731 | _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn)do { __m128 tmp3, tmp2, tmp1, tmp0; tmp0 = _mm_unpacklo_ps((ewtabF ), (ewtabD)); tmp2 = _mm_unpacklo_ps((ewtabV), (ewtabFn)); tmp1 = _mm_unpackhi_ps((ewtabF), (ewtabD)); tmp3 = _mm_unpackhi_ps ((ewtabV), (ewtabFn)); (ewtabF) = _mm_movelh_ps(tmp0, tmp2); ( ewtabD) = _mm_movehl_ps(tmp2, tmp0); (ewtabV) = _mm_movelh_ps (tmp1, tmp3); (ewtabFn) = _mm_movehl_ps(tmp3, tmp1); } while ( 0); |
| 732 | felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD)); |
| 733 | velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec))); |
| 734 | velec = _mm_mul_ps(qq20,_mm_sub_ps(rinv20,velec)); |
| 735 | felec = _mm_mul_ps(_mm_mul_ps(qq20,rinv20),_mm_sub_ps(rinvsq20,felec)); |
| 736 | |
| 737 | d = _mm_sub_ps(r20,rswitch); |
| 738 | d = _mm_max_ps(d,_mm_setzero_ps()); |
| 739 | d2 = _mm_mul_ps(d,d); |
| 740 | sw = _mm_add_ps(one,_mm_mul_ps(d2,_mm_mul_ps(d,_mm_add_ps(swV3,_mm_mul_ps(d,_mm_add_ps(swV4,_mm_mul_ps(d,swV5))))))); |
| 741 | |
| 742 | dsw = _mm_mul_ps(d2,_mm_add_ps(swF2,_mm_mul_ps(d,_mm_add_ps(swF3,_mm_mul_ps(d,swF4))))); |
| 743 | |
| 744 | /* Evaluate switch function */ |
| 745 | /* fscal'=f'/r=-(v*sw)'/r=-(v'*sw+v*dsw)/r=-v'*sw/r-v*dsw/r=fscal*sw-v*dsw/r */ |
| 746 | felec = _mm_sub_ps( _mm_mul_ps(felec,sw) , _mm_mul_ps(rinv20,_mm_mul_ps(velec,dsw)) ); |
| 747 | velec = _mm_mul_ps(velec,sw); |
| 748 | cutoff_mask = _mm_cmplt_ps(rsq20,rcutoff2); |
| 749 | |
| 750 | /* Update potential sum for this i atom from the interaction with this j atom. */ |
| 751 | velec = _mm_and_ps(velec,cutoff_mask); |
| 752 | velec = _mm_andnot_ps(dummy_mask,velec); |
| 753 | velecsum = _mm_add_ps(velecsum,velec); |
| 754 | |
| 755 | fscal = felec; |
| 756 | |
| 757 | fscal = _mm_and_ps(fscal,cutoff_mask); |
| 758 | |
| 759 | fscal = _mm_andnot_ps(dummy_mask,fscal); |
| 760 | |
| 761 | /* Calculate temporary vectorial force */ |
| 762 | tx = _mm_mul_ps(fscal,dx20); |
| 763 | ty = _mm_mul_ps(fscal,dy20); |
| 764 | tz = _mm_mul_ps(fscal,dz20); |
| 765 | |
| 766 | /* Update vectorial force */ |
| 767 | fix2 = _mm_add_ps(fix2,tx); |
| 768 | fiy2 = _mm_add_ps(fiy2,ty); |
| 769 | fiz2 = _mm_add_ps(fiz2,tz); |
| 770 | |
| 771 | fjx0 = _mm_add_ps(fjx0,tx); |
| 772 | fjy0 = _mm_add_ps(fjy0,ty); |
| 773 | fjz0 = _mm_add_ps(fjz0,tz); |
| 774 | |
| 775 | } |
| 776 | |
| 777 | fjptrA = (jnrlistA>=0) ? f+j_coord_offsetA : scratch; |
| 778 | fjptrB = (jnrlistB>=0) ? f+j_coord_offsetB : scratch; |
| 779 | fjptrC = (jnrlistC>=0) ? f+j_coord_offsetC : scratch; |
| 780 | fjptrD = (jnrlistD>=0) ? f+j_coord_offsetD : scratch; |
| 781 | |
| 782 | gmx_mm_decrement_1rvec_4ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,fjx0,fjy0,fjz0); |
| 783 | |
| 784 | /* Inner loop uses 216 flops */ |
| 785 | } |
| 786 | |
| 787 | /* End of innermost loop */ |
| 788 | |
| 789 | gmx_mm_update_iforce_3atom_swizzle_ps(fix0,fiy0,fiz0,fix1,fiy1,fiz1,fix2,fiy2,fiz2, |
| 790 | f+i_coord_offset,fshift+i_shift_offset); |
| 791 | |
| 792 | ggid = gid[iidx]; |
| 793 | /* Update potential energies */ |
| 794 | gmx_mm_update_1pot_ps(velecsum,kernel_data->energygrp_elec+ggid); |
| 795 | gmx_mm_update_1pot_ps(vvdwsum,kernel_data->energygrp_vdw+ggid); |
| 796 | |
| 797 | /* Increment number of inner iterations */ |
| 798 | inneriter += j_index_end - j_index_start; |
| 799 | |
| 800 | /* Outer loop uses 20 flops */ |
| 801 | } |
| 802 | |
| 803 | /* Increment number of outer iterations */ |
| 804 | outeriter += nri; |
| 805 | |
| 806 | /* Update outer/inner flops */ |
| 807 | |
| 808 | inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_VDW_W3_VF,outeriter*20 + inneriter*216)(nrnb)->n[eNR_NBKERNEL_ELEC_VDW_W3_VF] += outeriter*20 + inneriter *216; |
| 809 | } |
| 810 | /* |
| 811 | * Gromacs nonbonded kernel: nb_kernel_ElecEwSw_VdwLJSw_GeomW3P1_F_sse4_1_single |
| 812 | * Electrostatics interaction: Ewald |
| 813 | * VdW interaction: LennardJones |
| 814 | * Geometry: Water3-Particle |
| 815 | * Calculate force/pot: Force |
| 816 | */ |
| 817 | void |
| 818 | nb_kernel_ElecEwSw_VdwLJSw_GeomW3P1_F_sse4_1_single |
| 819 | (t_nblist * gmx_restrict nlist, |
| 820 | rvec * gmx_restrict xx, |
| 821 | rvec * gmx_restrict ff, |
| 822 | t_forcerec * gmx_restrict fr, |
| 823 | t_mdatoms * gmx_restrict mdatoms, |
| 824 | nb_kernel_data_t gmx_unused__attribute__ ((unused)) * gmx_restrict kernel_data, |
| 825 | t_nrnb * gmx_restrict nrnb) |
| 826 | { |
| 827 | /* Suffixes 0,1,2,3 refer to particle indices for waters in the inner or outer loop, or |
| 828 | * just 0 for non-waters. |
| 829 | * Suffixes A,B,C,D refer to j loop unrolling done with SSE, e.g. for the four different |
| 830 | * jnr indices corresponding to data put in the four positions in the SIMD register. |
| 831 | */ |
| 832 | int i_shift_offset,i_coord_offset,outeriter,inneriter; |
| 833 | int j_index_start,j_index_end,jidx,nri,inr,ggid,iidx; |
| 834 | int jnrA,jnrB,jnrC,jnrD; |
| 835 | int jnrlistA,jnrlistB,jnrlistC,jnrlistD; |
| 836 | int j_coord_offsetA,j_coord_offsetB,j_coord_offsetC,j_coord_offsetD; |
| 837 | int *iinr,*jindex,*jjnr,*shiftidx,*gid; |
| 838 | real rcutoff_scalar; |
| 839 | real *shiftvec,*fshift,*x,*f; |
| 840 | real *fjptrA,*fjptrB,*fjptrC,*fjptrD; |
| 841 | real scratch[4*DIM3]; |
| 842 | __m128 tx,ty,tz,fscal,rcutoff,rcutoff2,jidxall; |
| 843 | int vdwioffset0; |
| 844 | __m128 ix0,iy0,iz0,fix0,fiy0,fiz0,iq0,isai0; |
| 845 | int vdwioffset1; |
| 846 | __m128 ix1,iy1,iz1,fix1,fiy1,fiz1,iq1,isai1; |
| 847 | int vdwioffset2; |
| 848 | __m128 ix2,iy2,iz2,fix2,fiy2,fiz2,iq2,isai2; |
| 849 | int vdwjidx0A,vdwjidx0B,vdwjidx0C,vdwjidx0D; |
| 850 | __m128 jx0,jy0,jz0,fjx0,fjy0,fjz0,jq0,isaj0; |
| 851 | __m128 dx00,dy00,dz00,rsq00,rinv00,rinvsq00,r00,qq00,c6_00,c12_00; |
| 852 | __m128 dx10,dy10,dz10,rsq10,rinv10,rinvsq10,r10,qq10,c6_10,c12_10; |
| 853 | __m128 dx20,dy20,dz20,rsq20,rinv20,rinvsq20,r20,qq20,c6_20,c12_20; |
| 854 | __m128 velec,felec,velecsum,facel,crf,krf,krf2; |
| 855 | real *charge; |
| 856 | int nvdwtype; |
| 857 | __m128 rinvsix,rvdw,vvdw,vvdw6,vvdw12,fvdw,fvdw6,fvdw12,vvdwsum,sh_vdw_invrcut6; |
| 858 | int *vdwtype; |
| 859 | real *vdwparam; |
| 860 | __m128 one_sixth = _mm_set1_ps(1.0/6.0); |
| 861 | __m128 one_twelfth = _mm_set1_ps(1.0/12.0); |
| 862 | __m128i ewitab; |
| 863 | __m128 ewtabscale,eweps,sh_ewald,ewrt,ewtabhalfspace,ewtabF,ewtabFn,ewtabD,ewtabV; |
| 864 | real *ewtab; |
| 865 | __m128 rswitch,swV3,swV4,swV5,swF2,swF3,swF4,d,d2,sw,dsw; |
| 866 | real rswitch_scalar,d_scalar; |
| 867 | __m128 dummy_mask,cutoff_mask; |
| 868 | __m128 signbit = _mm_castsi128_ps( _mm_set1_epi32(0x80000000) ); |
| 869 | __m128 one = _mm_set1_ps(1.0); |
| 870 | __m128 two = _mm_set1_ps(2.0); |
| 871 | x = xx[0]; |
| 872 | f = ff[0]; |
| 873 | |
| 874 | nri = nlist->nri; |
| 875 | iinr = nlist->iinr; |
| 876 | jindex = nlist->jindex; |
| 877 | jjnr = nlist->jjnr; |
| 878 | shiftidx = nlist->shift; |
| 879 | gid = nlist->gid; |
| 880 | shiftvec = fr->shift_vec[0]; |
| 881 | fshift = fr->fshift[0]; |
| 882 | facel = _mm_set1_ps(fr->epsfac); |
| 883 | charge = mdatoms->chargeA; |
| 884 | nvdwtype = fr->ntype; |
| 885 | vdwparam = fr->nbfp; |
| 886 | vdwtype = mdatoms->typeA; |
| 887 | |
| 888 | sh_ewald = _mm_set1_ps(fr->ic->sh_ewald); |
| 889 | ewtab = fr->ic->tabq_coul_FDV0; |
| 890 | ewtabscale = _mm_set1_ps(fr->ic->tabq_scale); |
| 891 | ewtabhalfspace = _mm_set1_ps(0.5/fr->ic->tabq_scale); |
| 892 | |
| 893 | /* Setup water-specific parameters */ |
| 894 | inr = nlist->iinr[0]; |
| 895 | iq0 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+0])); |
| 896 | iq1 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+1])); |
| 897 | iq2 = _mm_mul_ps(facel,_mm_set1_ps(charge[inr+2])); |
| 898 | vdwioffset0 = 2*nvdwtype*vdwtype[inr+0]; |
| 899 | |
| 900 | /* When we use explicit cutoffs the value must be identical for elec and VdW, so use elec as an arbitrary choice */ |
| 901 | rcutoff_scalar = fr->rcoulomb; |
| 902 | rcutoff = _mm_set1_ps(rcutoff_scalar); |
| 903 | rcutoff2 = _mm_mul_ps(rcutoff,rcutoff); |
| 904 | |
| 905 | rswitch_scalar = fr->rcoulomb_switch; |
| 906 | rswitch = _mm_set1_ps(rswitch_scalar); |
| 907 | /* Setup switch parameters */ |
| 908 | d_scalar = rcutoff_scalar-rswitch_scalar; |
| 909 | d = _mm_set1_ps(d_scalar); |
| 910 | swV3 = _mm_set1_ps(-10.0/(d_scalar*d_scalar*d_scalar)); |
| 911 | swV4 = _mm_set1_ps( 15.0/(d_scalar*d_scalar*d_scalar*d_scalar)); |
| 912 | swV5 = _mm_set1_ps( -6.0/(d_scalar*d_scalar*d_scalar*d_scalar*d_scalar)); |
| 913 | swF2 = _mm_set1_ps(-30.0/(d_scalar*d_scalar*d_scalar)); |
| 914 | swF3 = _mm_set1_ps( 60.0/(d_scalar*d_scalar*d_scalar*d_scalar)); |
| 915 | swF4 = _mm_set1_ps(-30.0/(d_scalar*d_scalar*d_scalar*d_scalar*d_scalar)); |
| 916 | |
| 917 | /* Avoid stupid compiler warnings */ |
| 918 | jnrA = jnrB = jnrC = jnrD = 0; |
| 919 | j_coord_offsetA = 0; |
| 920 | j_coord_offsetB = 0; |
| 921 | j_coord_offsetC = 0; |
| 922 | j_coord_offsetD = 0; |
| 923 | |
| 924 | outeriter = 0; |
| 925 | inneriter = 0; |
| 926 | |
| 927 | for(iidx=0;iidx<4*DIM3;iidx++) |
| 928 | { |
| 929 | scratch[iidx] = 0.0; |
| 930 | } |
| 931 | |
| 932 | /* Start outer loop over neighborlists */ |
| 933 | for(iidx=0; iidx<nri; iidx++) |
| 934 | { |
| 935 | /* Load shift vector for this list */ |
| 936 | i_shift_offset = DIM3*shiftidx[iidx]; |
| 937 | |
| 938 | /* Load limits for loop over neighbors */ |
| 939 | j_index_start = jindex[iidx]; |
| 940 | j_index_end = jindex[iidx+1]; |
| 941 | |
| 942 | /* Get outer coordinate index */ |
| 943 | inr = iinr[iidx]; |
| 944 | i_coord_offset = DIM3*inr; |
| 945 | |
| 946 | /* Load i particle coords and add shift vector */ |
| 947 | gmx_mm_load_shift_and_3rvec_broadcast_ps(shiftvec+i_shift_offset,x+i_coord_offset, |
| 948 | &ix0,&iy0,&iz0,&ix1,&iy1,&iz1,&ix2,&iy2,&iz2); |
| 949 | |
| 950 | fix0 = _mm_setzero_ps(); |
| 951 | fiy0 = _mm_setzero_ps(); |
| 952 | fiz0 = _mm_setzero_ps(); |
| 953 | fix1 = _mm_setzero_ps(); |
| 954 | fiy1 = _mm_setzero_ps(); |
| 955 | fiz1 = _mm_setzero_ps(); |
| 956 | fix2 = _mm_setzero_ps(); |
| 957 | fiy2 = _mm_setzero_ps(); |
| 958 | fiz2 = _mm_setzero_ps(); |
| 959 | |
| 960 | /* Start inner kernel loop */ |
| 961 | for(jidx=j_index_start; jidx<j_index_end && jjnr[jidx+3]>=0; jidx+=4) |
| 962 | { |
| 963 | |
| 964 | /* Get j neighbor index, and coordinate index */ |
| 965 | jnrA = jjnr[jidx]; |
| 966 | jnrB = jjnr[jidx+1]; |
| 967 | jnrC = jjnr[jidx+2]; |
| 968 | jnrD = jjnr[jidx+3]; |
| 969 | j_coord_offsetA = DIM3*jnrA; |
| 970 | j_coord_offsetB = DIM3*jnrB; |
| 971 | j_coord_offsetC = DIM3*jnrC; |
| 972 | j_coord_offsetD = DIM3*jnrD; |
| 973 | |
| 974 | /* load j atom coordinates */ |
| 975 | gmx_mm_load_1rvec_4ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB, |
| 976 | x+j_coord_offsetC,x+j_coord_offsetD, |
| 977 | &jx0,&jy0,&jz0); |
| 978 | |
| 979 | /* Calculate displacement vector */ |
| 980 | dx00 = _mm_sub_ps(ix0,jx0); |
| 981 | dy00 = _mm_sub_ps(iy0,jy0); |
| 982 | dz00 = _mm_sub_ps(iz0,jz0); |
| 983 | dx10 = _mm_sub_ps(ix1,jx0); |
| 984 | dy10 = _mm_sub_ps(iy1,jy0); |
| 985 | dz10 = _mm_sub_ps(iz1,jz0); |
| 986 | dx20 = _mm_sub_ps(ix2,jx0); |
| 987 | dy20 = _mm_sub_ps(iy2,jy0); |
| 988 | dz20 = _mm_sub_ps(iz2,jz0); |
| 989 | |
| 990 | /* Calculate squared distance and things based on it */ |
| 991 | rsq00 = gmx_mm_calc_rsq_ps(dx00,dy00,dz00); |
| 992 | rsq10 = gmx_mm_calc_rsq_ps(dx10,dy10,dz10); |
| 993 | rsq20 = gmx_mm_calc_rsq_ps(dx20,dy20,dz20); |
| 994 | |
| 995 | rinv00 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq00); |
| 996 | rinv10 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq10); |
| 997 | rinv20 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq20); |
| 998 | |
| 999 | rinvsq00 = _mm_mul_ps(rinv00,rinv00); |
| 1000 | rinvsq10 = _mm_mul_ps(rinv10,rinv10); |
| 1001 | rinvsq20 = _mm_mul_ps(rinv20,rinv20); |
| 1002 | |
| 1003 | /* Load parameters for j particles */ |
| 1004 | jq0 = gmx_mm_load_4real_swizzle_ps(charge+jnrA+0,charge+jnrB+0, |
| 1005 | charge+jnrC+0,charge+jnrD+0); |
| 1006 | vdwjidx0A = 2*vdwtype[jnrA+0]; |
| 1007 | vdwjidx0B = 2*vdwtype[jnrB+0]; |
| 1008 | vdwjidx0C = 2*vdwtype[jnrC+0]; |
| 1009 | vdwjidx0D = 2*vdwtype[jnrD+0]; |
| 1010 | |
| 1011 | fjx0 = _mm_setzero_ps(); |
| 1012 | fjy0 = _mm_setzero_ps(); |
| 1013 | fjz0 = _mm_setzero_ps(); |
| 1014 | |
| 1015 | /************************** |
| 1016 | * CALCULATE INTERACTIONS * |
| 1017 | **************************/ |
| 1018 | |
| 1019 | if (gmx_mm_any_lt(rsq00,rcutoff2)) |
| 1020 | { |
| 1021 | |
| 1022 | r00 = _mm_mul_ps(rsq00,rinv00); |
| 1023 | |
| 1024 | /* Compute parameters for interactions between i and j atoms */ |
| 1025 | qq00 = _mm_mul_ps(iq0,jq0); |
| 1026 | gmx_mm_load_4pair_swizzle_ps(vdwparam+vdwioffset0+vdwjidx0A, |
| 1027 | vdwparam+vdwioffset0+vdwjidx0B, |
| 1028 | vdwparam+vdwioffset0+vdwjidx0C, |
| 1029 | vdwparam+vdwioffset0+vdwjidx0D, |
| 1030 | &c6_00,&c12_00); |
| 1031 | |
| 1032 | /* EWALD ELECTROSTATICS */ |
| 1033 | |
| 1034 | /* Calculate Ewald table index by multiplying r with scale and truncate to integer */ |
| 1035 | ewrt = _mm_mul_ps(r00,ewtabscale); |
| 1036 | ewitab = _mm_cvttps_epi32(ewrt); |
| 1037 | eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR)__extension__ ({ __m128 __X = (ewrt); (__m128) __builtin_ia32_roundps ((__v4sf)__X, ((0x00 | 0x01))); })); |
| 1038 | ewitab = _mm_slli_epi32(ewitab,2); |
| 1039 | ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(0) & 3];})) ); |
| 1040 | ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(1) & 3];})) ); |
| 1041 | ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(2) & 3];})) ); |
| 1042 | ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(3) & 3];})) ); |
| 1043 | _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn)do { __m128 tmp3, tmp2, tmp1, tmp0; tmp0 = _mm_unpacklo_ps((ewtabF ), (ewtabD)); tmp2 = _mm_unpacklo_ps((ewtabV), (ewtabFn)); tmp1 = _mm_unpackhi_ps((ewtabF), (ewtabD)); tmp3 = _mm_unpackhi_ps ((ewtabV), (ewtabFn)); (ewtabF) = _mm_movelh_ps(tmp0, tmp2); ( ewtabD) = _mm_movehl_ps(tmp2, tmp0); (ewtabV) = _mm_movelh_ps (tmp1, tmp3); (ewtabFn) = _mm_movehl_ps(tmp3, tmp1); } while ( 0); |
| 1044 | felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD)); |
| 1045 | velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec))); |
| 1046 | velec = _mm_mul_ps(qq00,_mm_sub_ps(rinv00,velec)); |
| 1047 | felec = _mm_mul_ps(_mm_mul_ps(qq00,rinv00),_mm_sub_ps(rinvsq00,felec)); |
| 1048 | |
| 1049 | /* LENNARD-JONES DISPERSION/REPULSION */ |
| 1050 | |
| 1051 | rinvsix = _mm_mul_ps(_mm_mul_ps(rinvsq00,rinvsq00),rinvsq00); |
| 1052 | vvdw6 = _mm_mul_ps(c6_00,rinvsix); |
| 1053 | vvdw12 = _mm_mul_ps(c12_00,_mm_mul_ps(rinvsix,rinvsix)); |
| 1054 | vvdw = _mm_sub_ps( _mm_mul_ps(vvdw12,one_twelfth) , _mm_mul_ps(vvdw6,one_sixth) ); |
| 1055 | fvdw = _mm_mul_ps(_mm_sub_ps(vvdw12,vvdw6),rinvsq00); |
| 1056 | |
| 1057 | d = _mm_sub_ps(r00,rswitch); |
| 1058 | d = _mm_max_ps(d,_mm_setzero_ps()); |
| 1059 | d2 = _mm_mul_ps(d,d); |
| 1060 | sw = _mm_add_ps(one,_mm_mul_ps(d2,_mm_mul_ps(d,_mm_add_ps(swV3,_mm_mul_ps(d,_mm_add_ps(swV4,_mm_mul_ps(d,swV5))))))); |
| 1061 | |
| 1062 | dsw = _mm_mul_ps(d2,_mm_add_ps(swF2,_mm_mul_ps(d,_mm_add_ps(swF3,_mm_mul_ps(d,swF4))))); |
| 1063 | |
| 1064 | /* Evaluate switch function */ |
| 1065 | /* fscal'=f'/r=-(v*sw)'/r=-(v'*sw+v*dsw)/r=-v'*sw/r-v*dsw/r=fscal*sw-v*dsw/r */ |
| 1066 | felec = _mm_sub_ps( _mm_mul_ps(felec,sw) , _mm_mul_ps(rinv00,_mm_mul_ps(velec,dsw)) ); |
| 1067 | fvdw = _mm_sub_ps( _mm_mul_ps(fvdw,sw) , _mm_mul_ps(rinv00,_mm_mul_ps(vvdw,dsw)) ); |
| 1068 | cutoff_mask = _mm_cmplt_ps(rsq00,rcutoff2); |
| 1069 | |
| 1070 | fscal = _mm_add_ps(felec,fvdw); |
| 1071 | |
| 1072 | fscal = _mm_and_ps(fscal,cutoff_mask); |
| 1073 | |
| 1074 | /* Calculate temporary vectorial force */ |
| 1075 | tx = _mm_mul_ps(fscal,dx00); |
| 1076 | ty = _mm_mul_ps(fscal,dy00); |
| 1077 | tz = _mm_mul_ps(fscal,dz00); |
| 1078 | |
| 1079 | /* Update vectorial force */ |
| 1080 | fix0 = _mm_add_ps(fix0,tx); |
| 1081 | fiy0 = _mm_add_ps(fiy0,ty); |
| 1082 | fiz0 = _mm_add_ps(fiz0,tz); |
| 1083 | |
| 1084 | fjx0 = _mm_add_ps(fjx0,tx); |
| 1085 | fjy0 = _mm_add_ps(fjy0,ty); |
| 1086 | fjz0 = _mm_add_ps(fjz0,tz); |
| 1087 | |
| 1088 | } |
| 1089 | |
| 1090 | /************************** |
| 1091 | * CALCULATE INTERACTIONS * |
| 1092 | **************************/ |
| 1093 | |
| 1094 | if (gmx_mm_any_lt(rsq10,rcutoff2)) |
| 1095 | { |
| 1096 | |
| 1097 | r10 = _mm_mul_ps(rsq10,rinv10); |
| 1098 | |
| 1099 | /* Compute parameters for interactions between i and j atoms */ |
| 1100 | qq10 = _mm_mul_ps(iq1,jq0); |
| 1101 | |
| 1102 | /* EWALD ELECTROSTATICS */ |
| 1103 | |
| 1104 | /* Calculate Ewald table index by multiplying r with scale and truncate to integer */ |
| 1105 | ewrt = _mm_mul_ps(r10,ewtabscale); |
| 1106 | ewitab = _mm_cvttps_epi32(ewrt); |
| 1107 | eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR)__extension__ ({ __m128 __X = (ewrt); (__m128) __builtin_ia32_roundps ((__v4sf)__X, ((0x00 | 0x01))); })); |
| 1108 | ewitab = _mm_slli_epi32(ewitab,2); |
| 1109 | ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(0) & 3];})) ); |
| 1110 | ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(1) & 3];})) ); |
| 1111 | ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(2) & 3];})) ); |
| 1112 | ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(3) & 3];})) ); |
| 1113 | _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn)do { __m128 tmp3, tmp2, tmp1, tmp0; tmp0 = _mm_unpacklo_ps((ewtabF ), (ewtabD)); tmp2 = _mm_unpacklo_ps((ewtabV), (ewtabFn)); tmp1 = _mm_unpackhi_ps((ewtabF), (ewtabD)); tmp3 = _mm_unpackhi_ps ((ewtabV), (ewtabFn)); (ewtabF) = _mm_movelh_ps(tmp0, tmp2); ( ewtabD) = _mm_movehl_ps(tmp2, tmp0); (ewtabV) = _mm_movelh_ps (tmp1, tmp3); (ewtabFn) = _mm_movehl_ps(tmp3, tmp1); } while ( 0); |
| 1114 | felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD)); |
| 1115 | velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec))); |
| 1116 | velec = _mm_mul_ps(qq10,_mm_sub_ps(rinv10,velec)); |
| 1117 | felec = _mm_mul_ps(_mm_mul_ps(qq10,rinv10),_mm_sub_ps(rinvsq10,felec)); |
| 1118 | |
| 1119 | d = _mm_sub_ps(r10,rswitch); |
| 1120 | d = _mm_max_ps(d,_mm_setzero_ps()); |
| 1121 | d2 = _mm_mul_ps(d,d); |
| 1122 | sw = _mm_add_ps(one,_mm_mul_ps(d2,_mm_mul_ps(d,_mm_add_ps(swV3,_mm_mul_ps(d,_mm_add_ps(swV4,_mm_mul_ps(d,swV5))))))); |
| 1123 | |
| 1124 | dsw = _mm_mul_ps(d2,_mm_add_ps(swF2,_mm_mul_ps(d,_mm_add_ps(swF3,_mm_mul_ps(d,swF4))))); |
| 1125 | |
| 1126 | /* Evaluate switch function */ |
| 1127 | /* fscal'=f'/r=-(v*sw)'/r=-(v'*sw+v*dsw)/r=-v'*sw/r-v*dsw/r=fscal*sw-v*dsw/r */ |
| 1128 | felec = _mm_sub_ps( _mm_mul_ps(felec,sw) , _mm_mul_ps(rinv10,_mm_mul_ps(velec,dsw)) ); |
| 1129 | cutoff_mask = _mm_cmplt_ps(rsq10,rcutoff2); |
| 1130 | |
| 1131 | fscal = felec; |
| 1132 | |
| 1133 | fscal = _mm_and_ps(fscal,cutoff_mask); |
| 1134 | |
| 1135 | /* Calculate temporary vectorial force */ |
| 1136 | tx = _mm_mul_ps(fscal,dx10); |
| 1137 | ty = _mm_mul_ps(fscal,dy10); |
| 1138 | tz = _mm_mul_ps(fscal,dz10); |
| 1139 | |
| 1140 | /* Update vectorial force */ |
| 1141 | fix1 = _mm_add_ps(fix1,tx); |
| 1142 | fiy1 = _mm_add_ps(fiy1,ty); |
| 1143 | fiz1 = _mm_add_ps(fiz1,tz); |
| 1144 | |
| 1145 | fjx0 = _mm_add_ps(fjx0,tx); |
| 1146 | fjy0 = _mm_add_ps(fjy0,ty); |
| 1147 | fjz0 = _mm_add_ps(fjz0,tz); |
| 1148 | |
| 1149 | } |
| 1150 | |
| 1151 | /************************** |
| 1152 | * CALCULATE INTERACTIONS * |
| 1153 | **************************/ |
| 1154 | |
| 1155 | if (gmx_mm_any_lt(rsq20,rcutoff2)) |
| 1156 | { |
| 1157 | |
| 1158 | r20 = _mm_mul_ps(rsq20,rinv20); |
| 1159 | |
| 1160 | /* Compute parameters for interactions between i and j atoms */ |
| 1161 | qq20 = _mm_mul_ps(iq2,jq0); |
| 1162 | |
| 1163 | /* EWALD ELECTROSTATICS */ |
| 1164 | |
| 1165 | /* Calculate Ewald table index by multiplying r with scale and truncate to integer */ |
| 1166 | ewrt = _mm_mul_ps(r20,ewtabscale); |
| 1167 | ewitab = _mm_cvttps_epi32(ewrt); |
| 1168 | eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR)__extension__ ({ __m128 __X = (ewrt); (__m128) __builtin_ia32_roundps ((__v4sf)__X, ((0x00 | 0x01))); })); |
| 1169 | ewitab = _mm_slli_epi32(ewitab,2); |
| 1170 | ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(0) & 3];})) ); |
| 1171 | ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(1) & 3];})) ); |
| 1172 | ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(2) & 3];})) ); |
| 1173 | ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(3) & 3];})) ); |
| 1174 | _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn)do { __m128 tmp3, tmp2, tmp1, tmp0; tmp0 = _mm_unpacklo_ps((ewtabF ), (ewtabD)); tmp2 = _mm_unpacklo_ps((ewtabV), (ewtabFn)); tmp1 = _mm_unpackhi_ps((ewtabF), (ewtabD)); tmp3 = _mm_unpackhi_ps ((ewtabV), (ewtabFn)); (ewtabF) = _mm_movelh_ps(tmp0, tmp2); ( ewtabD) = _mm_movehl_ps(tmp2, tmp0); (ewtabV) = _mm_movelh_ps (tmp1, tmp3); (ewtabFn) = _mm_movehl_ps(tmp3, tmp1); } while ( 0); |
| 1175 | felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD)); |
| 1176 | velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec))); |
| 1177 | velec = _mm_mul_ps(qq20,_mm_sub_ps(rinv20,velec)); |
| 1178 | felec = _mm_mul_ps(_mm_mul_ps(qq20,rinv20),_mm_sub_ps(rinvsq20,felec)); |
| 1179 | |
| 1180 | d = _mm_sub_ps(r20,rswitch); |
| 1181 | d = _mm_max_ps(d,_mm_setzero_ps()); |
| 1182 | d2 = _mm_mul_ps(d,d); |
| 1183 | sw = _mm_add_ps(one,_mm_mul_ps(d2,_mm_mul_ps(d,_mm_add_ps(swV3,_mm_mul_ps(d,_mm_add_ps(swV4,_mm_mul_ps(d,swV5))))))); |
| 1184 | |
| 1185 | dsw = _mm_mul_ps(d2,_mm_add_ps(swF2,_mm_mul_ps(d,_mm_add_ps(swF3,_mm_mul_ps(d,swF4))))); |
| 1186 | |
| 1187 | /* Evaluate switch function */ |
| 1188 | /* fscal'=f'/r=-(v*sw)'/r=-(v'*sw+v*dsw)/r=-v'*sw/r-v*dsw/r=fscal*sw-v*dsw/r */ |
| 1189 | felec = _mm_sub_ps( _mm_mul_ps(felec,sw) , _mm_mul_ps(rinv20,_mm_mul_ps(velec,dsw)) ); |
| 1190 | cutoff_mask = _mm_cmplt_ps(rsq20,rcutoff2); |
| 1191 | |
| 1192 | fscal = felec; |
| 1193 | |
| 1194 | fscal = _mm_and_ps(fscal,cutoff_mask); |
| 1195 | |
| 1196 | /* Calculate temporary vectorial force */ |
| 1197 | tx = _mm_mul_ps(fscal,dx20); |
| 1198 | ty = _mm_mul_ps(fscal,dy20); |
| 1199 | tz = _mm_mul_ps(fscal,dz20); |
| 1200 | |
| 1201 | /* Update vectorial force */ |
| 1202 | fix2 = _mm_add_ps(fix2,tx); |
| 1203 | fiy2 = _mm_add_ps(fiy2,ty); |
| 1204 | fiz2 = _mm_add_ps(fiz2,tz); |
| 1205 | |
| 1206 | fjx0 = _mm_add_ps(fjx0,tx); |
| 1207 | fjy0 = _mm_add_ps(fjy0,ty); |
| 1208 | fjz0 = _mm_add_ps(fjz0,tz); |
| 1209 | |
| 1210 | } |
| 1211 | |
| 1212 | fjptrA = f+j_coord_offsetA; |
| 1213 | fjptrB = f+j_coord_offsetB; |
| 1214 | fjptrC = f+j_coord_offsetC; |
| 1215 | fjptrD = f+j_coord_offsetD; |
| 1216 | |
| 1217 | gmx_mm_decrement_1rvec_4ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,fjx0,fjy0,fjz0); |
| 1218 | |
| 1219 | /* Inner loop uses 201 flops */ |
| 1220 | } |
| 1221 | |
| 1222 | if(jidx<j_index_end) |
| 1223 | { |
| 1224 | |
| 1225 | /* Get j neighbor index, and coordinate index */ |
| 1226 | jnrlistA = jjnr[jidx]; |
| 1227 | jnrlistB = jjnr[jidx+1]; |
| 1228 | jnrlistC = jjnr[jidx+2]; |
| 1229 | jnrlistD = jjnr[jidx+3]; |
| 1230 | /* Sign of each element will be negative for non-real atoms. |
| 1231 | * This mask will be 0xFFFFFFFF for dummy entries and 0x0 for real ones, |
| 1232 | * so use it as val = _mm_andnot_ps(mask,val) to clear dummy entries. |
| 1233 | */ |
| 1234 | dummy_mask = gmx_mm_castsi128_ps_mm_castsi128_ps(_mm_cmplt_epi32(_mm_loadu_si128((const __m128i *)(jjnr+jidx)),_mm_setzero_si128())); |
| 1235 | jnrA = (jnrlistA>=0) ? jnrlistA : 0; |
| 1236 | jnrB = (jnrlistB>=0) ? jnrlistB : 0; |
| 1237 | jnrC = (jnrlistC>=0) ? jnrlistC : 0; |
| 1238 | jnrD = (jnrlistD>=0) ? jnrlistD : 0; |
| 1239 | j_coord_offsetA = DIM3*jnrA; |
| 1240 | j_coord_offsetB = DIM3*jnrB; |
| 1241 | j_coord_offsetC = DIM3*jnrC; |
| 1242 | j_coord_offsetD = DIM3*jnrD; |
| 1243 | |
| 1244 | /* load j atom coordinates */ |
| 1245 | gmx_mm_load_1rvec_4ptr_swizzle_ps(x+j_coord_offsetA,x+j_coord_offsetB, |
| 1246 | x+j_coord_offsetC,x+j_coord_offsetD, |
| 1247 | &jx0,&jy0,&jz0); |
| 1248 | |
| 1249 | /* Calculate displacement vector */ |
| 1250 | dx00 = _mm_sub_ps(ix0,jx0); |
| 1251 | dy00 = _mm_sub_ps(iy0,jy0); |
| 1252 | dz00 = _mm_sub_ps(iz0,jz0); |
| 1253 | dx10 = _mm_sub_ps(ix1,jx0); |
| 1254 | dy10 = _mm_sub_ps(iy1,jy0); |
| 1255 | dz10 = _mm_sub_ps(iz1,jz0); |
| 1256 | dx20 = _mm_sub_ps(ix2,jx0); |
| 1257 | dy20 = _mm_sub_ps(iy2,jy0); |
| 1258 | dz20 = _mm_sub_ps(iz2,jz0); |
| 1259 | |
| 1260 | /* Calculate squared distance and things based on it */ |
| 1261 | rsq00 = gmx_mm_calc_rsq_ps(dx00,dy00,dz00); |
| 1262 | rsq10 = gmx_mm_calc_rsq_ps(dx10,dy10,dz10); |
| 1263 | rsq20 = gmx_mm_calc_rsq_ps(dx20,dy20,dz20); |
| 1264 | |
| 1265 | rinv00 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq00); |
| 1266 | rinv10 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq10); |
| 1267 | rinv20 = gmx_mm_invsqrt_psgmx_simd_invsqrt_f(rsq20); |
| 1268 | |
| 1269 | rinvsq00 = _mm_mul_ps(rinv00,rinv00); |
| 1270 | rinvsq10 = _mm_mul_ps(rinv10,rinv10); |
| 1271 | rinvsq20 = _mm_mul_ps(rinv20,rinv20); |
| 1272 | |
| 1273 | /* Load parameters for j particles */ |
| 1274 | jq0 = gmx_mm_load_4real_swizzle_ps(charge+jnrA+0,charge+jnrB+0, |
| 1275 | charge+jnrC+0,charge+jnrD+0); |
| 1276 | vdwjidx0A = 2*vdwtype[jnrA+0]; |
| 1277 | vdwjidx0B = 2*vdwtype[jnrB+0]; |
| 1278 | vdwjidx0C = 2*vdwtype[jnrC+0]; |
| 1279 | vdwjidx0D = 2*vdwtype[jnrD+0]; |
| 1280 | |
| 1281 | fjx0 = _mm_setzero_ps(); |
| 1282 | fjy0 = _mm_setzero_ps(); |
| 1283 | fjz0 = _mm_setzero_ps(); |
| 1284 | |
| 1285 | /************************** |
| 1286 | * CALCULATE INTERACTIONS * |
| 1287 | **************************/ |
| 1288 | |
| 1289 | if (gmx_mm_any_lt(rsq00,rcutoff2)) |
| 1290 | { |
| 1291 | |
| 1292 | r00 = _mm_mul_ps(rsq00,rinv00); |
| 1293 | r00 = _mm_andnot_ps(dummy_mask,r00); |
| 1294 | |
| 1295 | /* Compute parameters for interactions between i and j atoms */ |
| 1296 | qq00 = _mm_mul_ps(iq0,jq0); |
| 1297 | gmx_mm_load_4pair_swizzle_ps(vdwparam+vdwioffset0+vdwjidx0A, |
| 1298 | vdwparam+vdwioffset0+vdwjidx0B, |
| 1299 | vdwparam+vdwioffset0+vdwjidx0C, |
| 1300 | vdwparam+vdwioffset0+vdwjidx0D, |
| 1301 | &c6_00,&c12_00); |
| 1302 | |
| 1303 | /* EWALD ELECTROSTATICS */ |
| 1304 | |
| 1305 | /* Calculate Ewald table index by multiplying r with scale and truncate to integer */ |
| 1306 | ewrt = _mm_mul_ps(r00,ewtabscale); |
| 1307 | ewitab = _mm_cvttps_epi32(ewrt); |
| 1308 | eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR)__extension__ ({ __m128 __X = (ewrt); (__m128) __builtin_ia32_roundps ((__v4sf)__X, ((0x00 | 0x01))); })); |
| 1309 | ewitab = _mm_slli_epi32(ewitab,2); |
| 1310 | ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(0) & 3];})) ); |
| 1311 | ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(1) & 3];})) ); |
| 1312 | ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(2) & 3];})) ); |
| 1313 | ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(3) & 3];})) ); |
| 1314 | _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn)do { __m128 tmp3, tmp2, tmp1, tmp0; tmp0 = _mm_unpacklo_ps((ewtabF ), (ewtabD)); tmp2 = _mm_unpacklo_ps((ewtabV), (ewtabFn)); tmp1 = _mm_unpackhi_ps((ewtabF), (ewtabD)); tmp3 = _mm_unpackhi_ps ((ewtabV), (ewtabFn)); (ewtabF) = _mm_movelh_ps(tmp0, tmp2); ( ewtabD) = _mm_movehl_ps(tmp2, tmp0); (ewtabV) = _mm_movelh_ps (tmp1, tmp3); (ewtabFn) = _mm_movehl_ps(tmp3, tmp1); } while ( 0); |
| 1315 | felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD)); |
| 1316 | velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec))); |
| 1317 | velec = _mm_mul_ps(qq00,_mm_sub_ps(rinv00,velec)); |
| 1318 | felec = _mm_mul_ps(_mm_mul_ps(qq00,rinv00),_mm_sub_ps(rinvsq00,felec)); |
| 1319 | |
| 1320 | /* LENNARD-JONES DISPERSION/REPULSION */ |
| 1321 | |
| 1322 | rinvsix = _mm_mul_ps(_mm_mul_ps(rinvsq00,rinvsq00),rinvsq00); |
| 1323 | vvdw6 = _mm_mul_ps(c6_00,rinvsix); |
| 1324 | vvdw12 = _mm_mul_ps(c12_00,_mm_mul_ps(rinvsix,rinvsix)); |
| 1325 | vvdw = _mm_sub_ps( _mm_mul_ps(vvdw12,one_twelfth) , _mm_mul_ps(vvdw6,one_sixth) ); |
| 1326 | fvdw = _mm_mul_ps(_mm_sub_ps(vvdw12,vvdw6),rinvsq00); |
| 1327 | |
| 1328 | d = _mm_sub_ps(r00,rswitch); |
| 1329 | d = _mm_max_ps(d,_mm_setzero_ps()); |
| 1330 | d2 = _mm_mul_ps(d,d); |
| 1331 | sw = _mm_add_ps(one,_mm_mul_ps(d2,_mm_mul_ps(d,_mm_add_ps(swV3,_mm_mul_ps(d,_mm_add_ps(swV4,_mm_mul_ps(d,swV5))))))); |
| 1332 | |
| 1333 | dsw = _mm_mul_ps(d2,_mm_add_ps(swF2,_mm_mul_ps(d,_mm_add_ps(swF3,_mm_mul_ps(d,swF4))))); |
| 1334 | |
| 1335 | /* Evaluate switch function */ |
| 1336 | /* fscal'=f'/r=-(v*sw)'/r=-(v'*sw+v*dsw)/r=-v'*sw/r-v*dsw/r=fscal*sw-v*dsw/r */ |
| 1337 | felec = _mm_sub_ps( _mm_mul_ps(felec,sw) , _mm_mul_ps(rinv00,_mm_mul_ps(velec,dsw)) ); |
| 1338 | fvdw = _mm_sub_ps( _mm_mul_ps(fvdw,sw) , _mm_mul_ps(rinv00,_mm_mul_ps(vvdw,dsw)) ); |
| 1339 | cutoff_mask = _mm_cmplt_ps(rsq00,rcutoff2); |
| 1340 | |
| 1341 | fscal = _mm_add_ps(felec,fvdw); |
| 1342 | |
| 1343 | fscal = _mm_and_ps(fscal,cutoff_mask); |
| 1344 | |
| 1345 | fscal = _mm_andnot_ps(dummy_mask,fscal); |
| 1346 | |
| 1347 | /* Calculate temporary vectorial force */ |
| 1348 | tx = _mm_mul_ps(fscal,dx00); |
| 1349 | ty = _mm_mul_ps(fscal,dy00); |
| 1350 | tz = _mm_mul_ps(fscal,dz00); |
| 1351 | |
| 1352 | /* Update vectorial force */ |
| 1353 | fix0 = _mm_add_ps(fix0,tx); |
| 1354 | fiy0 = _mm_add_ps(fiy0,ty); |
| 1355 | fiz0 = _mm_add_ps(fiz0,tz); |
| 1356 | |
| 1357 | fjx0 = _mm_add_ps(fjx0,tx); |
| 1358 | fjy0 = _mm_add_ps(fjy0,ty); |
| 1359 | fjz0 = _mm_add_ps(fjz0,tz); |
| 1360 | |
| 1361 | } |
| 1362 | |
| 1363 | /************************** |
| 1364 | * CALCULATE INTERACTIONS * |
| 1365 | **************************/ |
| 1366 | |
| 1367 | if (gmx_mm_any_lt(rsq10,rcutoff2)) |
| 1368 | { |
| 1369 | |
| 1370 | r10 = _mm_mul_ps(rsq10,rinv10); |
| 1371 | r10 = _mm_andnot_ps(dummy_mask,r10); |
| 1372 | |
| 1373 | /* Compute parameters for interactions between i and j atoms */ |
| 1374 | qq10 = _mm_mul_ps(iq1,jq0); |
| 1375 | |
| 1376 | /* EWALD ELECTROSTATICS */ |
| 1377 | |
| 1378 | /* Calculate Ewald table index by multiplying r with scale and truncate to integer */ |
| 1379 | ewrt = _mm_mul_ps(r10,ewtabscale); |
| 1380 | ewitab = _mm_cvttps_epi32(ewrt); |
| 1381 | eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR)__extension__ ({ __m128 __X = (ewrt); (__m128) __builtin_ia32_roundps ((__v4sf)__X, ((0x00 | 0x01))); })); |
| 1382 | ewitab = _mm_slli_epi32(ewitab,2); |
| 1383 | ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(0) & 3];})) ); |
| 1384 | ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(1) & 3];})) ); |
| 1385 | ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(2) & 3];})) ); |
| 1386 | ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(3) & 3];})) ); |
| 1387 | _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn)do { __m128 tmp3, tmp2, tmp1, tmp0; tmp0 = _mm_unpacklo_ps((ewtabF ), (ewtabD)); tmp2 = _mm_unpacklo_ps((ewtabV), (ewtabFn)); tmp1 = _mm_unpackhi_ps((ewtabF), (ewtabD)); tmp3 = _mm_unpackhi_ps ((ewtabV), (ewtabFn)); (ewtabF) = _mm_movelh_ps(tmp0, tmp2); ( ewtabD) = _mm_movehl_ps(tmp2, tmp0); (ewtabV) = _mm_movelh_ps (tmp1, tmp3); (ewtabFn) = _mm_movehl_ps(tmp3, tmp1); } while ( 0); |
| 1388 | felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD)); |
| 1389 | velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec))); |
| 1390 | velec = _mm_mul_ps(qq10,_mm_sub_ps(rinv10,velec)); |
| 1391 | felec = _mm_mul_ps(_mm_mul_ps(qq10,rinv10),_mm_sub_ps(rinvsq10,felec)); |
| 1392 | |
| 1393 | d = _mm_sub_ps(r10,rswitch); |
| 1394 | d = _mm_max_ps(d,_mm_setzero_ps()); |
| 1395 | d2 = _mm_mul_ps(d,d); |
| 1396 | sw = _mm_add_ps(one,_mm_mul_ps(d2,_mm_mul_ps(d,_mm_add_ps(swV3,_mm_mul_ps(d,_mm_add_ps(swV4,_mm_mul_ps(d,swV5))))))); |
| 1397 | |
| 1398 | dsw = _mm_mul_ps(d2,_mm_add_ps(swF2,_mm_mul_ps(d,_mm_add_ps(swF3,_mm_mul_ps(d,swF4))))); |
| 1399 | |
| 1400 | /* Evaluate switch function */ |
| 1401 | /* fscal'=f'/r=-(v*sw)'/r=-(v'*sw+v*dsw)/r=-v'*sw/r-v*dsw/r=fscal*sw-v*dsw/r */ |
| 1402 | felec = _mm_sub_ps( _mm_mul_ps(felec,sw) , _mm_mul_ps(rinv10,_mm_mul_ps(velec,dsw)) ); |
| 1403 | cutoff_mask = _mm_cmplt_ps(rsq10,rcutoff2); |
| 1404 | |
| 1405 | fscal = felec; |
| 1406 | |
| 1407 | fscal = _mm_and_ps(fscal,cutoff_mask); |
| 1408 | |
| 1409 | fscal = _mm_andnot_ps(dummy_mask,fscal); |
| 1410 | |
| 1411 | /* Calculate temporary vectorial force */ |
| 1412 | tx = _mm_mul_ps(fscal,dx10); |
| 1413 | ty = _mm_mul_ps(fscal,dy10); |
| 1414 | tz = _mm_mul_ps(fscal,dz10); |
| 1415 | |
| 1416 | /* Update vectorial force */ |
| 1417 | fix1 = _mm_add_ps(fix1,tx); |
| 1418 | fiy1 = _mm_add_ps(fiy1,ty); |
| 1419 | fiz1 = _mm_add_ps(fiz1,tz); |
| 1420 | |
| 1421 | fjx0 = _mm_add_ps(fjx0,tx); |
| 1422 | fjy0 = _mm_add_ps(fjy0,ty); |
| 1423 | fjz0 = _mm_add_ps(fjz0,tz); |
| 1424 | |
| 1425 | } |
| 1426 | |
| 1427 | /************************** |
| 1428 | * CALCULATE INTERACTIONS * |
| 1429 | **************************/ |
| 1430 | |
| 1431 | if (gmx_mm_any_lt(rsq20,rcutoff2)) |
| 1432 | { |
| 1433 | |
| 1434 | r20 = _mm_mul_ps(rsq20,rinv20); |
| 1435 | r20 = _mm_andnot_ps(dummy_mask,r20); |
| 1436 | |
| 1437 | /* Compute parameters for interactions between i and j atoms */ |
| 1438 | qq20 = _mm_mul_ps(iq2,jq0); |
| 1439 | |
| 1440 | /* EWALD ELECTROSTATICS */ |
| 1441 | |
| 1442 | /* Calculate Ewald table index by multiplying r with scale and truncate to integer */ |
| 1443 | ewrt = _mm_mul_ps(r20,ewtabscale); |
| 1444 | ewitab = _mm_cvttps_epi32(ewrt); |
| 1445 | eweps = _mm_sub_ps(ewrt,_mm_round_ps(ewrt, _MM_FROUND_FLOOR)__extension__ ({ __m128 __X = (ewrt); (__m128) __builtin_ia32_roundps ((__v4sf)__X, ((0x00 | 0x01))); })); |
| 1446 | ewitab = _mm_slli_epi32(ewitab,2); |
| 1447 | ewtabF = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,0)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(0) & 3];})) ); |
| 1448 | ewtabD = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,1)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(1) & 3];})) ); |
| 1449 | ewtabV = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,2)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(2) & 3];})) ); |
| 1450 | ewtabFn = _mm_load_ps( ewtab + gmx_mm_extract_epi32(ewitab,3)(__extension__ ({ __v4si __a = (__v4si)(ewitab); __a[(3) & 3];})) ); |
| 1451 | _MM_TRANSPOSE4_PS(ewtabF,ewtabD,ewtabV,ewtabFn)do { __m128 tmp3, tmp2, tmp1, tmp0; tmp0 = _mm_unpacklo_ps((ewtabF ), (ewtabD)); tmp2 = _mm_unpacklo_ps((ewtabV), (ewtabFn)); tmp1 = _mm_unpackhi_ps((ewtabF), (ewtabD)); tmp3 = _mm_unpackhi_ps ((ewtabV), (ewtabFn)); (ewtabF) = _mm_movelh_ps(tmp0, tmp2); ( ewtabD) = _mm_movehl_ps(tmp2, tmp0); (ewtabV) = _mm_movelh_ps (tmp1, tmp3); (ewtabFn) = _mm_movehl_ps(tmp3, tmp1); } while ( 0); |
| 1452 | felec = _mm_add_ps(ewtabF,_mm_mul_ps(eweps,ewtabD)); |
| 1453 | velec = _mm_sub_ps(ewtabV,_mm_mul_ps(_mm_mul_ps(ewtabhalfspace,eweps),_mm_add_ps(ewtabF,felec))); |
| 1454 | velec = _mm_mul_ps(qq20,_mm_sub_ps(rinv20,velec)); |
| 1455 | felec = _mm_mul_ps(_mm_mul_ps(qq20,rinv20),_mm_sub_ps(rinvsq20,felec)); |
| 1456 | |
| 1457 | d = _mm_sub_ps(r20,rswitch); |
| 1458 | d = _mm_max_ps(d,_mm_setzero_ps()); |
| 1459 | d2 = _mm_mul_ps(d,d); |
| 1460 | sw = _mm_add_ps(one,_mm_mul_ps(d2,_mm_mul_ps(d,_mm_add_ps(swV3,_mm_mul_ps(d,_mm_add_ps(swV4,_mm_mul_ps(d,swV5))))))); |
| 1461 | |
| 1462 | dsw = _mm_mul_ps(d2,_mm_add_ps(swF2,_mm_mul_ps(d,_mm_add_ps(swF3,_mm_mul_ps(d,swF4))))); |
| 1463 | |
| 1464 | /* Evaluate switch function */ |
| 1465 | /* fscal'=f'/r=-(v*sw)'/r=-(v'*sw+v*dsw)/r=-v'*sw/r-v*dsw/r=fscal*sw-v*dsw/r */ |
| 1466 | felec = _mm_sub_ps( _mm_mul_ps(felec,sw) , _mm_mul_ps(rinv20,_mm_mul_ps(velec,dsw)) ); |
| 1467 | cutoff_mask = _mm_cmplt_ps(rsq20,rcutoff2); |
| 1468 | |
| 1469 | fscal = felec; |
| 1470 | |
| 1471 | fscal = _mm_and_ps(fscal,cutoff_mask); |
| 1472 | |
| 1473 | fscal = _mm_andnot_ps(dummy_mask,fscal); |
| 1474 | |
| 1475 | /* Calculate temporary vectorial force */ |
| 1476 | tx = _mm_mul_ps(fscal,dx20); |
| 1477 | ty = _mm_mul_ps(fscal,dy20); |
| 1478 | tz = _mm_mul_ps(fscal,dz20); |
| 1479 | |
| 1480 | /* Update vectorial force */ |
| 1481 | fix2 = _mm_add_ps(fix2,tx); |
| 1482 | fiy2 = _mm_add_ps(fiy2,ty); |
| 1483 | fiz2 = _mm_add_ps(fiz2,tz); |
| 1484 | |
| 1485 | fjx0 = _mm_add_ps(fjx0,tx); |
| 1486 | fjy0 = _mm_add_ps(fjy0,ty); |
| 1487 | fjz0 = _mm_add_ps(fjz0,tz); |
| 1488 | |
| 1489 | } |
| 1490 | |
| 1491 | fjptrA = (jnrlistA>=0) ? f+j_coord_offsetA : scratch; |
| 1492 | fjptrB = (jnrlistB>=0) ? f+j_coord_offsetB : scratch; |
| 1493 | fjptrC = (jnrlistC>=0) ? f+j_coord_offsetC : scratch; |
| 1494 | fjptrD = (jnrlistD>=0) ? f+j_coord_offsetD : scratch; |
| 1495 | |
| 1496 | gmx_mm_decrement_1rvec_4ptr_swizzle_ps(fjptrA,fjptrB,fjptrC,fjptrD,fjx0,fjy0,fjz0); |
| 1497 | |
| 1498 | /* Inner loop uses 204 flops */ |
| 1499 | } |
| 1500 | |
| 1501 | /* End of innermost loop */ |
| 1502 | |
| 1503 | gmx_mm_update_iforce_3atom_swizzle_ps(fix0,fiy0,fiz0,fix1,fiy1,fiz1,fix2,fiy2,fiz2, |
| 1504 | f+i_coord_offset,fshift+i_shift_offset); |
| 1505 | |
| 1506 | /* Increment number of inner iterations */ |
| 1507 | inneriter += j_index_end - j_index_start; |
| 1508 | |
| 1509 | /* Outer loop uses 18 flops */ |
| 1510 | } |
| 1511 | |
| 1512 | /* Increment number of outer iterations */ |
| 1513 | outeriter += nri; |
| 1514 | |
| 1515 | /* Update outer/inner flops */ |
| 1516 | |
| 1517 | inc_nrnb(nrnb,eNR_NBKERNEL_ELEC_VDW_W3_F,outeriter*18 + inneriter*204)(nrnb)->n[eNR_NBKERNEL_ELEC_VDW_W3_F] += outeriter*18 + inneriter *204; |
| 1518 | } |