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Bug fix with spreadout FFT

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This commit is contained in:
paboyle 2017-09-21 11:10:08 +01:00
parent a9ec5cf564
commit fddeb29d6b
1 changed files with 3 additions and 2 deletions
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5
lib/algorithms/FFT.h
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@ -230,6 +230,7 @@ namespace Grid {
// Barrel shift and collect global pencil
std::vector<int> lcoor(Nd), gcoor(Nd);
result = source;
int pc = processor_coor[dim];
for(int p=0;p<processors[dim];p++) {
PARALLEL_REGION
{
@ -240,7 +241,8 @@ namespace Grid {
for(int idx=0;idx<sgrid->lSites();idx++) {
sgrid->LocalIndexToLocalCoor(idx,cbuf);
peekLocalSite(s,result,cbuf);
cbuf[dim]+=p*L;
cbuf[dim]+=((pc+p) % processors[dim])*L;
// cbuf[dim]+=p*L;
pokeLocalSite(s,pgbuf,cbuf);
}
}
@ -278,7 +280,6 @@ namespace Grid {
flops+= flops_call*NN;
// writing out result
int pc = processor_coor[dim];
PARALLEL_REGION
{
std::vector<int> clbuf(Nd), cgbuf(Nd);