nb_kernel230_x86_64_sse2.s
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#### $Id: nb_kernel230_x86_64_sse2.s,v 1.4.2.3 2006/09/22 08:40:34 lindahl Exp $#### Gromacs 4.0 Copyright (c) 1991-2003 ## David van der Spoel, Erik Lindahl#### This program is free software; you can redistribute it and/or## modify it under the terms of the GNU General Public License## as published by the Free Software Foundation; either version 2## of the License, or (at your option) any later version.#### To help us fund GROMACS development, we humbly ask that you cite## the research papers on the package. Check out http://www.gromacs.org## ## And Hey:## Gnomes, ROck Monsters And Chili Sauce##.globl nb_kernel230_x86_64_sse2.globl _nb_kernel230_x86_64_sse2nb_kernel230_x86_64_sse2: _nb_kernel230_x86_64_sse2: ## Room for return address and rbp (16 bytes).set nb230_fshift, 16.set nb230_gid, 24.set nb230_pos, 32.set nb230_faction, 40.set nb230_charge, 48.set nb230_p_facel, 56.set nb230_argkrf, 64.set nb230_argcrf, 72.set nb230_Vc, 80.set nb230_type, 88.set nb230_p_ntype, 96.set nb230_vdwparam, 104.set nb230_Vvdw, 112.set nb230_p_tabscale, 120.set nb230_VFtab, 128.set nb230_invsqrta, 136.set nb230_dvda, 144.set nb230_p_gbtabscale, 152.set nb230_GBtab, 160.set nb230_p_nthreads, 168.set nb230_count, 176.set nb230_mtx, 184.set nb230_outeriter, 192.set nb230_inneriter, 200.set nb230_work, 208 ## stack offsets for local variables ## bottom of stack is cache-aligned for sse2 use .set nb230_ix, 0.set nb230_iy, 16.set nb230_iz, 32.set nb230_iq, 48.set nb230_dx, 64.set nb230_dy, 80.set nb230_dz, 96.set nb230_c6, 112.set nb230_c12, 128.set nb230_tsc, 144.set nb230_fstmp, 160.set nb230_vctot, 176.set nb230_Vvdwtot, 192.set nb230_fix, 208.set nb230_fiy, 224.set nb230_fiz, 240.set nb230_half, 256.set nb230_three, 272.set nb230_two, 288.set nb230_krf, 304.set nb230_crf, 320.set nb230_nri, 336.set nb230_iinr, 344.set nb230_jindex, 352.set nb230_jjnr, 360.set nb230_shift, 368.set nb230_shiftvec, 376.set nb230_facel, 384.set nb230_innerjjnr, 392.set nb230_is3, 400.set nb230_ii3, 404.set nb230_ntia, 408.set nb230_innerk, 412.set nb230_n, 416.set nb230_nn1, 420.set nb230_ntype, 424.set nb230_nouter, 428.set nb230_ninner, 432 push %rbp movq %rsp,%rbp push %rbx emms push %r12 push %r13 push %r14 push %r15 subq $456,%rsp ## local variable stack space (n*16+8) ## zero 32-bit iteration counters movl $0,%eax movl %eax,nb230_nouter(%rsp) movl %eax,nb230_ninner(%rsp) movl (%rdi),%edi movl %edi,nb230_nri(%rsp) movq %rsi,nb230_iinr(%rsp) movq %rdx,nb230_jindex(%rsp) movq %rcx,nb230_jjnr(%rsp) movq %r8,nb230_shift(%rsp) movq %r9,nb230_shiftvec(%rsp) movq nb230_p_ntype(%rbp),%rdi movl (%rdi),%edi movl %edi,nb230_ntype(%rsp) movq nb230_p_facel(%rbp),%rsi movsd (%rsi),%xmm0 movsd %xmm0,nb230_facel(%rsp) movq nb230_p_tabscale(%rbp),%rax movsd (%rax),%xmm3 shufpd $0,%xmm3,%xmm3 movapd %xmm3,nb230_tsc(%rsp) movq nb230_argkrf(%rbp),%rsi movq nb230_argcrf(%rbp),%rdi movsd (%rsi),%xmm1 movsd (%rdi),%xmm2 shufpd $0,%xmm1,%xmm1 shufpd $0,%xmm2,%xmm2 movapd %xmm1,nb230_krf(%rsp) movapd %xmm2,nb230_crf(%rsp) ## create constant floating-point factors on stack movl $0x00000000,%eax ## lower half of double half IEEE (hex) movl $0x3fe00000,%ebx movl %eax,nb230_half(%rsp) movl %ebx,nb230_half+4(%rsp) movsd nb230_half(%rsp),%xmm1 shufpd $0,%xmm1,%xmm1 ## splat to all elements movapd %xmm1,%xmm3 addpd %xmm3,%xmm3 ## one movapd %xmm3,%xmm2 addpd %xmm2,%xmm2 ## two addpd %xmm2,%xmm3 ## three movapd %xmm1,nb230_half(%rsp) movapd %xmm2,nb230_two(%rsp) movapd %xmm3,nb230_three(%rsp)_nb_kernel230_x86_64_sse2.nb230_threadloop: movq nb230_count(%rbp),%rsi ## pointer to sync counter movl (%rsi),%eax_nb_kernel230_x86_64_sse2.nb230_spinlock: movl %eax,%ebx ## ebx=*count=nn0 addl $1,%ebx ## ebx=nn1=nn0+10 lock cmpxchgl %ebx,(%rsi) ## write nn1 to *counter, ## if it hasnt changed. ## or reread *counter to eax. pause ## -> better p4 performance jnz _nb_kernel230_x86_64_sse2.nb230_spinlock ## if(nn1>nri) nn1=nri movl nb230_nri(%rsp),%ecx movl %ecx,%edx subl %ebx,%ecx cmovlel %edx,%ebx ## if(nn1>nri) nn1=nri ## Cleared the spinlock if we got here. ## eax contains nn0, ebx contains nn1. movl %eax,nb230_n(%rsp) movl %ebx,nb230_nn1(%rsp) subl %eax,%ebx ## calc number of outer lists movl %eax,%esi ## copy n to esi jg _nb_kernel230_x86_64_sse2.nb230_outerstart jmp _nb_kernel230_x86_64_sse2.nb230_end_nb_kernel230_x86_64_sse2.nb230_outerstart: ## ebx contains number of outer iterations addl nb230_nouter(%rsp),%ebx movl %ebx,nb230_nouter(%rsp)_nb_kernel230_x86_64_sse2.nb230_outer: movq nb230_shift(%rsp),%rax ## eax = pointer into shift[] movl (%rax,%rsi,4),%ebx ## ebx=shift[n] lea (%rbx,%rbx,2),%rbx ## rbx=3*is movl %ebx,nb230_is3(%rsp) ## store is3 movq nb230_shiftvec(%rsp),%rax ## eax = base of shiftvec[] movsd (%rax,%rbx,8),%xmm0 movsd 8(%rax,%rbx,8),%xmm1 movsd 16(%rax,%rbx,8),%xmm2 movq nb230_iinr(%rsp),%rcx ## ecx = pointer into iinr[] movl (%rcx,%rsi,4),%ebx ## ebx =ii movq nb230_charge(%rbp),%rdx movsd (%rdx,%rbx,8),%xmm3 mulsd nb230_facel(%rsp),%xmm3 shufpd $0,%xmm3,%xmm3 movq nb230_type(%rbp),%rdx movl (%rdx,%rbx,4),%edx imull nb230_ntype(%rsp),%edx shll %edx movl %edx,nb230_ntia(%rsp) lea (%rbx,%rbx,2),%rbx ## rbx = 3*ii=ii3 movq nb230_pos(%rbp),%rax ## eax = base of pos[] addsd (%rax,%rbx,8),%xmm0 addsd 8(%rax,%rbx,8),%xmm1 addsd 16(%rax,%rbx,8),%xmm2 movapd %xmm3,nb230_iq(%rsp) shufpd $0,%xmm0,%xmm0 shufpd $0,%xmm1,%xmm1 shufpd $0,%xmm2,%xmm2 movapd %xmm0,nb230_ix(%rsp) movapd %xmm1,nb230_iy(%rsp) movapd %xmm2,nb230_iz(%rsp) movl %ebx,nb230_ii3(%rsp) ## clear vctot and i forces xorpd %xmm4,%xmm4 movapd %xmm4,nb230_vctot(%rsp) movapd %xmm4,nb230_Vvdwtot(%rsp) movapd %xmm4,nb230_fix(%rsp) movapd %xmm4,nb230_fiy(%rsp) movapd %xmm4,nb230_fiz(%rsp) movq nb230_jindex(%rsp),%rax movl (%rax,%rsi,4),%ecx ## jindex[n] movl 4(%rax,%rsi,4),%edx ## jindex[n+1] subl %ecx,%edx ## number of innerloop atoms movq nb230_pos(%rbp),%rsi movq nb230_faction(%rbp),%rdi movq nb230_jjnr(%rsp),%rax shll $2,%ecx addq %rcx,%rax movq %rax,nb230_innerjjnr(%rsp) ## pointer to jjnr[nj0] movl %edx,%ecx subl $2,%edx addl nb230_ninner(%rsp),%ecx movl %ecx,nb230_ninner(%rsp) addl $0,%edx movl %edx,nb230_innerk(%rsp) ## number of innerloop atoms jge _nb_kernel230_x86_64_sse2.nb230_unroll_loop jmp _nb_kernel230_x86_64_sse2.nb230_checksingle_nb_kernel230_x86_64_sse2.nb230_unroll_loop: ## twice unrolled innerloop here movq nb230_innerjjnr(%rsp),%rdx ## pointer to jjnr[k] movl (%rdx),%eax movl 4(%rdx),%ebx addq $8,nb230_innerjjnr(%rsp) ## advance pointer (unrolled 2) movq nb230_charge(%rbp),%rsi ## base of charge[] movlpd (%rsi,%rax,8),%xmm3 movhpd (%rsi,%rbx,8),%xmm3 mulpd nb230_iq(%rsp),%xmm3 ## qq movq nb230_type(%rbp),%rsi movl (%rsi,%rax,4),%r8d movl (%rsi,%rbx,4),%r9d movq nb230_vdwparam(%rbp),%rsi shll %r8d shll %r9d movl nb230_ntia(%rsp),%edi addl %edi,%r8d addl %edi,%r9d movlpd (%rsi,%r8,8),%xmm6 ## c6a movlpd (%rsi,%r9,8),%xmm7 ## c6b movhpd 8(%rsi,%r8,8),%xmm6 ## c6a c12a movhpd 8(%rsi,%r9,8),%xmm7 ## c6b c12b movapd %xmm6,%xmm4 unpcklpd %xmm7,%xmm4 unpckhpd %xmm7,%xmm6 movapd %xmm4,nb230_c6(%rsp) movapd %xmm6,nb230_c12(%rsp) movq nb230_pos(%rbp),%rsi ## base of pos[] lea (%rax,%rax,2),%rax ## replace jnr with j3 lea (%rbx,%rbx,2),%rbx ## move two coordinates to xmm4-xmm6 movlpd (%rsi,%rax,8),%xmm4 movlpd 8(%rsi,%rax,8),%xmm5 movlpd 16(%rsi,%rax,8),%xmm6 movhpd (%rsi,%rbx,8),%xmm4 movhpd 8(%rsi,%rbx,8),%xmm5 movhpd 16(%rsi,%rbx,8),%xmm6 ## calc dr subpd nb230_ix(%rsp),%xmm4 subpd nb230_iy(%rsp),%xmm5 subpd nb230_iz(%rsp),%xmm6 ## store dr movapd %xmm4,nb230_dx(%rsp) movapd %xmm5,nb230_dy(%rsp) movapd %xmm6,nb230_dz(%rsp) ## square it mulpd %xmm4,%xmm4 mulpd %xmm5,%xmm5 mulpd %xmm6,%xmm6 addpd %xmm5,%xmm4 addpd %xmm6,%xmm4 ## rsq in xmm4 cvtpd2ps %xmm4,%xmm5 rsqrtps %xmm5,%xmm5 cvtps2pd %xmm5,%xmm2 ## lu in low xmm2 movapd nb230_krf(%rsp),%xmm7 ## lookup seed in xmm2 movapd %xmm2,%xmm5 ## copy of lu mulpd %xmm2,%xmm2 ## lu*lu movapd nb230_three(%rsp),%xmm1 mulpd %xmm4,%xmm7 ## krsq mulpd %xmm4,%xmm2 ## rsq*lu*lu movapd nb230_half(%rsp),%xmm0 subpd %xmm2,%xmm1 ## 30-rsq*lu*lu mulpd %xmm5,%xmm1 mulpd %xmm0,%xmm1 ## xmm0=iter1 of rinv (new lu) movapd %xmm1,%xmm5 ## copy of lu mulpd %xmm1,%xmm1 ## lu*lu movapd nb230_three(%rsp),%xmm2 mulpd %xmm4,%xmm1 ## rsq*lu*lu movapd nb230_half(%rsp),%xmm0 subpd %xmm1,%xmm2 ## 30-rsq*lu*lu mulpd %xmm5,%xmm2 mulpd %xmm2,%xmm0 ## xmm0=rinv movapd %xmm0,%xmm6 addpd %xmm7,%xmm6 ## xmm6=rinv+ krsq movapd %xmm4,%xmm1 subpd nb230_crf(%rsp),%xmm6 mulpd %xmm3,%xmm6 mulpd nb230_two(%rsp),%xmm7 movapd %xmm0,%xmm1 subpd %xmm7,%xmm1 ## rinv-2*krsq mulpd %xmm0,%xmm1 ## (rinv-2*krsq)*rinv mulpd %xmm1,%xmm3 ## qq*(rinv-2*krsq)*rinv ## xmm3=fstmp addpd nb230_vctot(%rsp),%xmm6 movapd %xmm6,nb230_vctot(%rsp) ## LJ table interaction. xmm0=rinv, xmm4=rsq mulpd %xmm0,%xmm4 ## xmm4=r mulpd nb230_tsc(%rsp),%xmm4 cvttpd2pi %xmm4,%mm6 ## mm6 = lu idx cvtpi2pd %mm6,%xmm5 subpd %xmm5,%xmm4 movapd %xmm4,%xmm1 ## xmm1=eps movapd %xmm1,%xmm2 mulpd %xmm2,%xmm2 ## xmm2=eps2 pslld $3,%mm6 ## idx *= 8 movq nb230_VFtab(%rbp),%rsi movd %mm6,%r8d psrlq $32,%mm6 movd %mm6,%r9d ## load both disp. and rep. tables in parallel movlpd (%rsi,%r8,8),%xmm4 movlpd 8(%rsi,%r8,8),%xmm5 movlpd 16(%rsi,%r8,8),%xmm6 movlpd 24(%rsi,%r8,8),%xmm7 movlpd 32(%rsi,%r8,8),%xmm8 movlpd 40(%rsi,%r8,8),%xmm9 movlpd 48(%rsi,%r8,8),%xmm10 movlpd 56(%rsi,%r8,8),%xmm11 movhpd (%rsi,%r9,8),%xmm4 movhpd 8(%rsi,%r9,8),%xmm5 movhpd 16(%rsi,%r9,8),%xmm6 movhpd 24(%rsi,%r9,8),%xmm7 movhpd 32(%rsi,%r9,8),%xmm8 movhpd 40(%rsi,%r9,8),%xmm9 movhpd 48(%rsi,%r9,8),%xmm10 movhpd 56(%rsi,%r9,8),%xmm11 ## dispersion table ready in xmm4-xmm7, repulsion in xmm8-xmm11 mulpd %xmm1,%xmm7 ## Heps mulpd %xmm1,%xmm11 mulpd %xmm1,%xmm6 ## Geps mulpd %xmm1,%xmm10 mulpd %xmm1,%xmm7 ## Heps2 mulpd %xmm1,%xmm11 addpd %xmm6,%xmm5 ## F+Geps addpd %xmm10,%xmm9 addpd %xmm7,%xmm5 ## F+Geps+Heps2 = Fp addpd %xmm11,%xmm9 addpd %xmm7,%xmm7 ## 2*Heps2 addpd %xmm11,%xmm11 addpd %xmm6,%xmm7 ## 2*Heps2+Geps addpd %xmm10,%xmm11 addpd %xmm5,%xmm7 ## FF = Fp + 2*Heps2 + Geps addpd %xmm9,%xmm11 mulpd %xmm1,%xmm5 ## eps*Fp mulpd %xmm1,%xmm9 movapd nb230_c6(%rsp),%xmm12 movapd nb230_c12(%rsp),%xmm13 addpd %xmm4,%xmm5 ## VV addpd %xmm8,%xmm9 mulpd %xmm12,%xmm5 ## VV*c6 = vnb6 mulpd %xmm13,%xmm9 ## VV*c12 = vnb12 addpd %xmm9,%xmm5 addpd nb230_Vvdwtot(%rsp),%xmm5 movapd %xmm5,nb230_Vvdwtot(%rsp) mulpd %xmm12,%xmm7 ## FF*c6 = fnb6 mulpd %xmm13,%xmm11 ## FF*c12 = fnb12 addpd %xmm11,%xmm7 mulpd nb230_tsc(%rsp),%xmm7 subpd %xmm7,%xmm3 mulpd %xmm0,%xmm3 ## fscal movapd %xmm3,%xmm9 movapd %xmm3,%xmm10 movapd %xmm3,%xmm11 movapd nb230_fix(%rsp),%xmm12 movapd nb230_fiy(%rsp),%xmm13 movapd nb230_fiz(%rsp),%xmm14 mulpd nb230_dx(%rsp),%xmm9 mulpd nb230_dy(%rsp),%xmm10 mulpd nb230_dz(%rsp),%xmm11 ## accumulate i forces addpd %xmm9,%xmm12 addpd %xmm10,%xmm13 addpd %xmm11,%xmm14 movapd %xmm12,nb230_fix(%rsp) movapd %xmm13,nb230_fiy(%rsp) movapd %xmm14,nb230_fiz(%rsp) ## the fj's - start by accumulating forces from memory movq nb230_faction(%rbp),%rdi movlpd (%rdi,%rax,8),%xmm3 movlpd 8(%rdi,%rax,8),%xmm4 movlpd 16(%rdi,%rax,8),%xmm5 movhpd (%rdi,%rbx,8),%xmm3 movhpd 8(%rdi,%rbx,8),%xmm4 movhpd 16(%rdi,%rbx,8),%xmm5 addpd %xmm9,%xmm3 addpd %xmm10,%xmm4 addpd %xmm11,%xmm5 movlpd %xmm3,(%rdi,%rax,8) movlpd %xmm4,8(%rdi,%rax,8) movlpd %xmm5,16(%rdi,%rax,8) movhpd %xmm3,(%rdi,%rbx,8) movhpd %xmm4,8(%rdi,%rbx,8) movhpd %xmm5,16(%rdi,%rbx,8) ## should we do one more iteration? subl $2,nb230_innerk(%rsp) jl _nb_kernel230_x86_64_sse2.nb230_checksingle⌨️ 快捷键说明
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