portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2024-09-20 09:15:38 +01:00
Code Releases Activity

add reordring of random number generator in IO

Browse Source
This commit is contained in:
Issaku Kanamori 2020-10-06 17:25:59 +09:00
parent 093d1ee21b
commit 97db2b8d20
1 changed files with 13 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
Grid/parallelIO/BinaryIO.h
View File

@ -663,10 +663,15 @@ class BinaryIO {
nersc_csum,scidac_csuma,scidac_csumb);
timer.Start();
thread_for(lidx,lsites,{
thread_for(lidx,lsites,{ // FIX ME, suboptimal implementation
std::vector<RngStateType> tmp(RngStateCount);
std::copy(iodata[lidx].begin(),iodata[lidx].end(),tmp.begin());
parallel_rng.SetState(tmp,lidx);
Coordinate lcoor;
grid->LocalIndexToLocalCoor(lidx, lcoor);
int o_idx=grid->oIndex(lcoor);
int i_idx=grid->iIndex(lcoor);
int gidx=parallel_rng.generator_idx(o_idx,i_idx);
parallel_rng.SetState(tmp,gidx);
});
timer.Stop();
@ -723,7 +728,12 @@ class BinaryIO {
std::vector<RNGstate> iodata(lsites);
thread_for(lidx,lsites,{
std::vector<RngStateType> tmp(RngStateCount);
parallel_rng.GetState(tmp,lidx);
Coordinate lcoor;
grid->LocalIndexToLocalCoor(lidx, lcoor);
int o_idx=grid->oIndex(lcoor);
int i_idx=grid->iIndex(lcoor);
int gidx=parallel_rng.generator_idx(o_idx,i_idx);
parallel_rng.GetState(tmp,gidx);
std::copy(tmp.begin(),tmp.end(),iodata[lidx].begin());
});
timer.Stop();