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This commit is contained in:
Peter Boyle 2020-05-24 21:18:49 -04:00
parent c7519a237a
commit d1f1ccc705
1 changed files with 30 additions and 14 deletions
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44
Grid/lattice/Lattice_reduction.h
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@ -24,7 +24,7 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
#include <Grid/Grid_Eigen_Dense.h>
#ifdef GRID_CUDA
#if defined(GRID_CUDA)||defined(GRID_HIP)
#include <Grid/lattice/Lattice_reduction_gpu.h>
#endif
@ -64,21 +64,29 @@ inline typename vobj::scalar_object sum_cpu(const vobj *arg, Integer osites)
return ssum;
}
/*
template<class vobj>
inline typename vobj::scalar_object sum(const vobj *arg, Integer osites)
{
#ifdef GRID_CUDA
#if defined(GRID_CUDA)||defined(GRID_HIP)
return sum_gpu(arg,osites);
#else
return sum_cpu(arg,osites);
#endif
}
*/
template<class vobj>
inline typename vobj::scalar_object sum(const Lattice<vobj> &arg)
{
#if defined(GRID_CUDA)
auto arg_v = arg.View(AcceleratorRead);
Integer osites = arg.Grid()->oSites();
auto ssum= sum(&arg_v[0],osites);
auto ssum= sum_gpu(&arg_v[0],osites);
#else
auto arg_v = arg.View(CpuRead);
Integer osites = arg.Grid()->oSites();
auto ssum= sum_cpu(&arg_v[0],osites);
#endif
arg.Grid()->GlobalSum(ssum);
return ssum;
}
@ -101,14 +109,14 @@ inline ComplexD innerProduct(const Lattice<vobj> &left,const Lattice<vobj> &righ
GridBase *grid = left.Grid();
const uint64_t nsimd = grid->Nsimd();
const uint64_t sites = grid->oSites();
#if defined(GRID_CUDA)
// Might make all code paths go this way.
auto left_v = left.View(AcceleratorRead);
auto right_v=right.View(AcceleratorRead);
const uint64_t nsimd = grid->Nsimd();
const uint64_t sites = grid->oSites();
#ifdef GRID_CUDA
// GPU - SIMT lane compliance...
typedef decltype(innerProduct(left_v[0],right_v[0])) inner_t;
Vector<inner_t> inner_tmp(sites);
@ -125,17 +133,21 @@ inline ComplexD innerProduct(const Lattice<vobj> &left,const Lattice<vobj> &righ
// Need a sumD that sums in double
nrm = TensorRemove(sumD_gpu(inner_tmp_v,sites));
#else
// Might make all code paths go this way.
auto left_v = left.View(CpuRead);
auto right_v=right.View(CpuRead);
// CPU
typedef decltype(innerProductD(left_v[0],right_v[0])) inner_t;
Vector<inner_t> inner_tmp(sites);
auto inner_tmp_v = &inner_tmp[0];
accelerator_for( ss, sites, nsimd,{
thread_for( ss, sites,{
auto x_l = left_v[ss];
auto y_l = right_v[ss];
inner_tmp_v[ss]=innerProductD(x_l,y_l);
})
nrm = TensorRemove(sum(inner_tmp_v,sites));
nrm = TensorRemove(sum_cpu(inner_tmp_v,sites));
#endif
grid->GlobalSum(nrm);
@ -167,15 +179,15 @@ axpby_norm_fast(Lattice<vobj> &z,sobj a,sobj b,const Lattice<vobj> &x,const Latt
GridBase *grid = x.Grid();
const uint64_t nsimd = grid->Nsimd();
const uint64_t sites = grid->oSites();
#if defined(GRID_CUDA)||defined(GRID_HIP)
// GPU
auto x_v=x.View(AcceleratorRead);
auto y_v=y.View(AcceleratorRead);
auto z_v=z.View(AcceleratorWrite);
const uint64_t nsimd = grid->Nsimd();
const uint64_t sites = grid->oSites();
#ifdef GRID_CUDA
// GPU
typedef decltype(innerProduct(x_v[0],y_v[0])) inner_t;
Vector<inner_t> inner_tmp(sites);
auto inner_tmp_v = &inner_tmp[0];
@ -188,6 +200,10 @@ axpby_norm_fast(Lattice<vobj> &z,sobj a,sobj b,const Lattice<vobj> &x,const Latt
nrm = real(TensorRemove(sumD_gpu(inner_tmp_v,sites)));
#else
auto x_v=x.View(AcceleratorRead);
auto y_v=y.View(AcceleratorRead);
auto z_v=z.View(AcceleratorWrite);
// CPU
typedef decltype(innerProductD(x_v[0],y_v[0])) inner_t;
Vector<inner_t> inner_tmp(sites);