mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-10 07:55:35 +00:00
28bdc90908
6000 matmuls CG unprec 2000 matmuls CG prec (4000 eo muls) 1050 matmuls PGCR on 16^3 x 32 x 8 m=.01 Substantial effort on timing and logging infrastructure
156 lines
6.3 KiB
C++
156 lines
6.3 KiB
C++
#include <Grid.h>
|
|
|
|
using namespace std;
|
|
using namespace Grid;
|
|
using namespace Grid::QCD;
|
|
|
|
int main (int argc, char ** argv)
|
|
{
|
|
Grid_init(&argc,&argv);
|
|
|
|
const int Nvec=8;
|
|
typedef Lattice< iVector< vReal,Nvec> > LatticeVec;
|
|
|
|
int Nloop=1000;
|
|
|
|
std::vector<int> simd_layout = GridDefaultSimd(Nd,vReal::Nsimd());
|
|
std::vector<int> mpi_layout = GridDefaultMpi();
|
|
|
|
int threads = GridThread::GetThreads();
|
|
std::cout<<GridLogMessage << "Grid is setup to use "<<threads<<" threads"<<std::endl;
|
|
|
|
std::cout<<GridLogMessage << "===================================================================================================="<<std::endl;
|
|
std::cout<<GridLogMessage << "= Benchmarking fused AXPY bandwidth ; sizeof(Real) "<<sizeof(Real)<<std::endl;
|
|
std::cout<<GridLogMessage << "===================================================================================================="<<std::endl;
|
|
std::cout<<GridLogMessage << " L "<<"\t\t"<<"bytes"<<"\t\t\t"<<"GB/s"<<"\t\t"<<"Gflop/s"<<std::endl;
|
|
std::cout<<GridLogMessage << "----------------------------------------------------------"<<std::endl;
|
|
|
|
for(int lat=4;lat<=32;lat+=4){
|
|
|
|
std::vector<int> latt_size ({lat*mpi_layout[0],lat*mpi_layout[1],lat*mpi_layout[2],lat*mpi_layout[3]});
|
|
int vol = latt_size[0]*latt_size[1]*latt_size[2]*latt_size[3];
|
|
GridCartesian Grid(latt_size,simd_layout,mpi_layout);
|
|
|
|
//GridParallelRNG pRNG(&Grid); pRNG.SeedRandomDevice();
|
|
|
|
LatticeVec z(&Grid); //random(pRNG,z);
|
|
LatticeVec x(&Grid); //random(pRNG,x);
|
|
LatticeVec y(&Grid); //random(pRNG,y);
|
|
double a=2.0;
|
|
|
|
|
|
double start=usecond();
|
|
for(int i=0;i<Nloop;i++){
|
|
// inline void axpy(Lattice<vobj> &ret,double a,const Lattice<vobj> &lhs,const Lattice<vobj> &rhs){
|
|
axpy(z,a,x,y);
|
|
}
|
|
double stop=usecond();
|
|
double time = (stop-start)/Nloop*1000;
|
|
|
|
double flops=vol*Nvec*2;// mul,add
|
|
double bytes=3*vol*Nvec*sizeof(Real);
|
|
std::cout<<GridLogMessage<<std::setprecision(3) << lat<<"\t\t"<<bytes<<" \t\t"<<bytes/time<<"\t\t"<<flops/time<<std::endl;
|
|
|
|
}
|
|
|
|
std::cout<<GridLogMessage << "===================================================================================================="<<std::endl;
|
|
std::cout<<GridLogMessage << "= Benchmarking a*x + y bandwidth"<<std::endl;
|
|
std::cout<<GridLogMessage << "===================================================================================================="<<std::endl;
|
|
std::cout<<GridLogMessage << " L "<<"\t\t"<<"bytes"<<"\t\t\t"<<"GB/s"<<"\t\t"<<"Gflop/s"<<std::endl;
|
|
std::cout<<GridLogMessage << "----------------------------------------------------------"<<std::endl;
|
|
|
|
for(int lat=4;lat<=32;lat+=4){
|
|
|
|
std::vector<int> latt_size ({lat*mpi_layout[0],lat*mpi_layout[1],lat*mpi_layout[2],lat*mpi_layout[3]});
|
|
int vol = latt_size[0]*latt_size[1]*latt_size[2]*latt_size[3];
|
|
GridCartesian Grid(latt_size,simd_layout,mpi_layout);
|
|
|
|
//GridParallelRNG pRNG(&Grid); pRNG.SeedRandomDevice();
|
|
|
|
LatticeVec z(&Grid); //random(pRNG,z);
|
|
LatticeVec x(&Grid); //random(pRNG,x);
|
|
LatticeVec y(&Grid); //random(pRNG,y);
|
|
double a=2.0;
|
|
|
|
double start=usecond();
|
|
for(int i=0;i<Nloop;i++){
|
|
z=a*x-y;
|
|
}
|
|
double stop=usecond();
|
|
double time = (stop-start)/Nloop*1000;
|
|
|
|
double flops=vol*Nvec*2;// mul,add
|
|
double bytes=3*vol*Nvec*sizeof(Real);
|
|
std::cout<<GridLogMessage<<std::setprecision(3) << lat<<"\t\t"<<bytes<<" \t\t"<<bytes/time<<"\t\t"<<flops/time<<std::endl;
|
|
|
|
}
|
|
|
|
std::cout<<GridLogMessage << "===================================================================================================="<<std::endl;
|
|
std::cout<<GridLogMessage << "= Benchmarking SCALE bandwidth"<<std::endl;
|
|
std::cout<<GridLogMessage << "===================================================================================================="<<std::endl;
|
|
std::cout<<GridLogMessage << " L "<<"\t\t"<<"bytes"<<"\t\t\t"<<"GB/s"<<"\t\t"<<"Gflop/s"<<std::endl;
|
|
|
|
for(int lat=4;lat<=32;lat+=4){
|
|
|
|
std::vector<int> latt_size ({lat*mpi_layout[0],lat*mpi_layout[1],lat*mpi_layout[2],lat*mpi_layout[3]});
|
|
int vol = latt_size[0]*latt_size[1]*latt_size[2]*latt_size[3];
|
|
|
|
GridCartesian Grid(latt_size,simd_layout,mpi_layout);
|
|
|
|
//GridParallelRNG pRNG(&Grid); pRNG.SeedRandomDevice();
|
|
|
|
LatticeVec z(&Grid); //random(pRNG,z);
|
|
LatticeVec x(&Grid); //random(pRNG,x);
|
|
LatticeVec y(&Grid); //random(pRNG,y);
|
|
RealD a=2.0;
|
|
|
|
|
|
double start=usecond();
|
|
for(int i=0;i<Nloop;i++){
|
|
z=a*x;
|
|
}
|
|
double stop=usecond();
|
|
double time = (stop-start)/Nloop*1000;
|
|
|
|
double bytes=2*vol*Nvec*sizeof(Real);
|
|
double flops=vol*Nvec*1;// mul
|
|
std::cout<<GridLogMessage <<std::setprecision(3) << lat<<"\t\t"<<bytes<<" \t\t"<<bytes/time<<"\t\t"<<flops/time<<std::endl;
|
|
|
|
}
|
|
|
|
std::cout<<GridLogMessage << "===================================================================================================="<<std::endl;
|
|
std::cout<<GridLogMessage << "= Benchmarking READ bandwidth"<<std::endl;
|
|
std::cout<<GridLogMessage << "===================================================================================================="<<std::endl;
|
|
std::cout<<GridLogMessage << " L "<<"\t\t"<<"bytes"<<"\t\t\t"<<"GB/s"<<"\t\t"<<"Gflop/s"<<std::endl;
|
|
std::cout<<GridLogMessage << "----------------------------------------------------------"<<std::endl;
|
|
|
|
for(int lat=4;lat<=32;lat+=4){
|
|
|
|
std::vector<int> latt_size ({lat*mpi_layout[0],lat*mpi_layout[1],lat*mpi_layout[2],lat*mpi_layout[3]});
|
|
int vol = latt_size[0]*latt_size[1]*latt_size[2]*latt_size[3];
|
|
GridCartesian Grid(latt_size,simd_layout,mpi_layout);
|
|
|
|
//GridParallelRNG pRNG(&Grid); pRNG.SeedRandomDevice();
|
|
|
|
LatticeVec z(&Grid); //random(pRNG,z);
|
|
LatticeVec x(&Grid); //random(pRNG,x);
|
|
LatticeVec y(&Grid); //random(pRNG,y);
|
|
RealD a=2.0;
|
|
ComplexD nn;
|
|
|
|
double start=usecond();
|
|
for(int i=0;i<Nloop;i++){
|
|
nn=norm2(x);
|
|
}
|
|
double stop=usecond();
|
|
double time = (stop-start)/Nloop*1000;
|
|
|
|
double bytes=vol*Nvec*sizeof(Real);
|
|
double flops=vol*Nvec*2;// mul,add
|
|
std::cout<<GridLogMessage<<std::setprecision(3) << lat<<"\t\t"<<bytes<<" \t\t"<<bytes/time<<"\t\t"<<flops/time<<std::endl;
|
|
|
|
}
|
|
|
|
Grid_finalize();
|
|
}
|