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165bffc2e7
Grid/tests/Test_zmm.cc
paboyle 165bffc2e7 Avx512 changes for assembler kernels
2016-03-26 22:25:45 -06:00

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./tests/Test_zmm.cc
Copyright (C) 2015
Author: paboyle <paboyle@ph.ed.ac.uk>
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.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#include <Grid.h>
#include <PerfCount.h>
#include <simd/Avx512Asm.h>
using namespace Grid;
using namespace Grid::QCD;
void WilsonDslashAvx512(void *ptr1,void *ptr2,void *ptr3);
void WilsonDslashAvx512F(void *ptr1,void *ptr2,void *ptr3);
void TimesIAvx512F(void *ptr1,void *ptr3);
void TimesIAvx512(void *ptr1,void *ptr3);
int main(int argc,char **argv)
{
Grid_init(&argc,&argv);
std::vector<int> latt4 = GridDefaultLatt();
const int Ls=16;
GridCartesian * UGrid = SpaceTimeGrid::makeFourDimGrid(latt4, GridDefaultSimd(Nd,vComplex::Nsimd()),GridDefaultMpi());
GridRedBlackCartesian * UrbGrid = SpaceTimeGrid::makeFourDimRedBlackGrid(UGrid);
GridCartesian * FGrid = SpaceTimeGrid::makeFiveDimGrid(Ls,UGrid);
GridRedBlackCartesian * FrbGrid = SpaceTimeGrid::makeFiveDimRedBlackGrid(Ls,UGrid);
std::vector<int> simd_layout = GridDefaultSimd(Nd,vComplex::Nsimd());
std::vector<int> mpi_layout = GridDefaultMpi();
int threads = GridThread::GetThreads();
std::vector<int> seeds4({1,2,3,4});
std::vector<int> seeds5({5,6,7,8});
GridSerialRNG sRNG; sRNG.SeedFixedIntegers(seeds4);
vColourMatrixD mat;
vHalfSpinColourVectorD vec;
vHalfSpinColourVectorD matvec;
vHalfSpinColourVectorD ref;
vComplexD err;
random(sRNG,mat);
random(sRNG,vec);
ref = mat*vec;
WilsonDslashAvx512((void *)&vec, (void *)&mat,(void *)&matvec);
ref = ref - matvec;
err = TensorRemove(innerProduct(ref,ref));
std::cout <<"Double SU3 x 2spin diff "<< Reduce(err)<<std::endl;
vColourMatrixF matF;
vHalfSpinColourVectorF vecF;
vHalfSpinColourVectorF matvecF;
vHalfSpinColourVectorF refF;
vComplexF errF;
random(sRNG,matF);
random(sRNG,vecF);
refF = matF*vecF;
WilsonDslashAvx512F((void *)&vecF, (void *)&matF,(void *)&matvecF);
refF = refF-matvecF;
errF = TensorRemove(innerProduct(refF,refF));
std::cout <<"Single SU3 x 2spin diff "<< Reduce(errF)<<std::endl;
TimesIAvx512F((void *)&vecF,(void *)&matvecF);
refF = timesI(vecF)-matvecF;
errF = TensorRemove(innerProduct(refF,refF));
std::cout <<" timesI single diff "<< Reduce(errF)<<std::endl;
TimesIAvx512((void *)&vec,(void *)&matvec);
ref = timesI(vec)-matvec;
err = TensorRemove(innerProduct(ref,ref));
std::cout <<" timesI double diff "<< Reduce(err)<<std::endl;
LatticeFermion src (FGrid);
LatticeFermion srce(FrbGrid);
LatticeFermion resulto(FrbGrid); resulto=zero;
LatticeFermion resulta(FrbGrid); resulta=zero;
LatticeFermion diff(FrbGrid);
LatticeGaugeField Umu(UGrid);
#if 1
GridParallelRNG RNG4(UGrid); RNG4.SeedFixedIntegers(seeds4);
GridParallelRNG RNG5(FGrid); RNG5.SeedFixedIntegers(seeds5);
random(RNG5,src);
random(RNG4,Umu);
#else
int mmu=3;
std::vector<LatticeColourMatrix> U(4,UGrid);
for(int mu=0;mu<Nd;mu++){
U[mu] = PeekIndex<LorentzIndex>(Umu,mu);
if ( mu!=mmu ) U[mu] = zero;
if ( mu==mmu ) U[mu] = 1.0;
PokeIndex<LorentzIndex>(Umu,U[mu],mu);
}
#endif
pickCheckerboard(Even,srce,src);
RealD mass=0.1;
RealD M5 =1.8;
DomainWallFermionR Dw(Umu,*FGrid,*FrbGrid,*UGrid,*UrbGrid,mass,M5);
std::cout<<GridLogMessage << "Calling Dw"<<std::endl;
int ncall=50;
double t0=usecond();
for(int i=0;i<ncall;i++){
Dw.DhopOE(srce,resulto,0);
}
double t1=usecond();
double volume=Ls; for(int mu=0;mu<Nd;mu++) volume=volume*latt4[mu];
double flops=1344*volume/2;
std::cout<<GridLogMessage << "Called Dw"<<std::endl;
std::cout<<GridLogMessage << "norm result "<< norm2(resulto)<<std::endl;
std::cout<<GridLogMessage << "mflop/s = "<< flops*ncall/(t1-t0)<<std::endl;
QCD::WilsonFermion5DStatic::AsmOptDslash=1;
t0=usecond();
for(int i=0;i<ncall;i++){
Dw.DhopOE(srce,resulta,0);
}
t1=usecond();
for(int i=0;i< PerformanceCounter::NumTypes(); i++ ){
Dw.DhopOE(srce,resulta,0);
PerformanceCounter Counter(i);
Counter.Start();
Dw.DhopOE(srce,resulta,0);
Counter.Stop();
Counter.Report();
}
resulta = (-0.5) * resulta;
std::cout<<GridLogMessage << "Called Asm Dw"<<std::endl;
std::cout<<GridLogMessage << "norm result "<< norm2(resulta)<<std::endl;
std::cout<<GridLogMessage << "mflop/s = "<< flops*ncall/(t1-t0)<<std::endl;
diff = resulto-resulta;
std::cout<<GridLogMessage << "diff "<< norm2(diff)<<std::endl;
}
#undef VLOAD
#undef VSTORE
#undef VMUL
#undef VMADD
#undef ZEND1
#undef ZEND2
#undef ZLOAD
#undef ZMUL
#undef ZMADD
#define VZERO(A) VZEROd(A)
#define VTIMESI(A,B,C) VTIMESId(A,B,C)
#define VTIMESMINUSI(A,B,C) VTIMESMINUSId(A,B,C)
#define VLOAD(OFF,PTR,DEST) VLOADd(OFF,PTR,DEST)
#define VSTORE(OFF,PTR,SRC) VSTOREd(OFF,PTR,SRC)
#define VMUL(Uri,Uir,Chi,UChi,Z) VMULd(Uri,Uir,Chi,UChi,Z)
#define VMADD(Uri,Uir,Chi,UChi,Z) VMADDd(Uri,Uir,Chi,UChi,Z)
#define ZEND1(A,B,C) ZEND1d(A,B,C)
#define ZEND2(A,B,C) ZEND2d(A,B,C)
#define ZLOAD(A,B,C,D) ZLOADd(A,B,C,D)
#define ZMUL(A,B,C,D,E) ZMULd(A,B,C,D,E)
#define ZMADD(A,B,C,D,E) ZMADDd(A,B,C,D,E)
#define ZMULMEM2SP(O,P,tmp,B,C,Briir,Biirr,Criir,Ciirr) ZMULMEM2SPd(O,P,tmp,B,C,Briir,Biirr,Criir,Ciirr)
#define ZMADDMEM2SP(O,P,tmp,B,C,Briir,Biirr,Criir,Ciirr) ZMADDMEM2SPd(O,P,tmp,B,C,Briir,Biirr,Criir,Ciirr)
#define zz Z0
void TimesIAvx512(void *ptr1,void *ptr3)
{
__asm__ ("mov $0xAAAA, %%eax " : : :"%eax");
__asm__ ("kmovw %%eax, %%k6 " : : :);
__asm__ ("mov $0x5555, %%eax " : : :"%eax");
__asm__ ("kmovw %%eax, %%k7 " : : :);
MASK_REGS;
LOAD_CHI(ptr1);
__asm__ (
VZERO(zz)
VTIMESI(Chi_00,UChi_00,zz)
VTIMESI(Chi_01,UChi_01,zz)
VTIMESI(Chi_02,UChi_02,zz)
VTIMESI(Chi_10,UChi_10,zz)
VTIMESI(Chi_11,UChi_11,zz)
VTIMESI(Chi_12,UChi_12,zz)
);
SAVE_UCHI(ptr3);
}
void WilsonDslashAvx512(void *ptr1,void *ptr2,void *ptr3)
{
int return_address;
// prototype computed goto to eliminate ABI save restore on call/return in
// generated assembly.
static void * table[] = { &&save, &&mult };
MASK_REGS;
LOAD_CHI(ptr1);
return_address = 0;
goto mult;
save:
SAVE_UCHI(ptr3);
return;
mult:
MULT_2SPIN(ptr2);
goto *table[return_address];
}
#undef VLOAD
#undef VSTORE
#undef VMUL
#undef VMADD
#undef ZEND1
#undef ZEND2
#undef ZLOAD
#undef ZMUL
#undef ZMADD
#undef VZERO
#undef VTIMESI
#undef VTIMESI0
#undef VTIMESI1
#undef VTIMESI2
#undef VTIMESMINUSI
#undef ZMULMEM2SP
#undef ZMADDMEM2SP
#define VZERO(A) VZEROf(A)
#define VMOV(A,B) VMOVf(A,B)
#define VADD(A,B,C) VADDf(A,B,C)
#define VSUB(A,B,C) VSUBf(A,B,C)
#define VTIMESI(A,B,C) VTIMESIf(A,B,C)
#define VTIMESMINUSI(A,B,C) VTIMESMINUSIf(A,B,C)
#define VLOAD(OFF,PTR,DEST) VLOADf(OFF,PTR,DEST)
#define VSTORE(OFF,PTR,SRC) VSTOREf(OFF,PTR,SRC)
#define VMUL(Uri,Uir,Chi,UChi,Z) VMULf(Uri,Uir,Chi,UChi,Z)
#define VMADD(Uri,Uir,Chi,UChi,Z) VMADDf(Uri,Uir,Chi,UChi,Z)
#define ZEND1(A,B,C) ZEND1f(A,B,C)
#define ZEND2(A,B,C) ZEND2f(A,B,C)
#define ZLOAD(A,B,C,D) ZLOADf(A,B,C,D)
#define ZMUL(A,B,C,D,E) ZMULf(A,B,C,D,E)
#define ZMADD(A,B,C,D,E) ZMADDf(A,B,C,D,E)
#define ZMULMEM2SP(O,P,tmp,B,C,Briir,Biirr,Criir,Ciirr) ZMULMEM2SPf(O,P,tmp,B,C,Briir,Biirr,Criir,Ciirr)
#define ZMADDMEM2SP(O,P,tmp,B,C,Briir,Biirr,Criir,Ciirr) ZMADDMEM2SPf(O,P,tmp,B,C,Briir,Biirr,Criir,Ciirr)
void TimesIAvx512F(void *ptr1,void *ptr3)
{
MASK_REGS;
LOAD_CHI(ptr1);
__asm__ (
VZERO(zz)
VTIMESI(Chi_00,UChi_00,zz)
VTIMESI(Chi_01,UChi_01,zz)
VTIMESI(Chi_02,UChi_02,zz)
VTIMESI(Chi_10,UChi_10,zz)
VTIMESI(Chi_11,UChi_11,zz)
VTIMESI(Chi_12,UChi_12,zz)
);
SAVE_UCHI(ptr3);
}
void WilsonDslashAvx512F(void *ptr1,void *ptr2,void *ptr3)
{
MASK_REGS;
LOAD_CHI(ptr1);
MULT_2SPIN(ptr2);
SAVE_UCHI(ptr3);
return;
}
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