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more FFt optimisations

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This commit is contained in:
Antonin Portelli 2016-11-24 09:09:48 +09:00
parent a2cffb0304
commit 5833f247fa
1 changed files with 5 additions and 2 deletions
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7
lib/FFT.h
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@ -244,7 +244,10 @@ namespace Grid {
pokeLocalSite(s,pgbuf,cbuf); pokeLocalSite(s,pgbuf,cbuf);
} }
} }
result = Cshift(result,dim,L); if (p != processors[dim] - 1)
{
result = Cshift(result,dim,L);
}
} }
// Loop over orthog coords // Loop over orthog coords
@ -287,10 +290,10 @@ namespace Grid {
cgbuf = clbuf; cgbuf = clbuf;
cgbuf[dim] = clbuf[dim]+L*pc; cgbuf[dim] = clbuf[dim]+L*pc;
peekLocalSite(s,pgbuf,cgbuf); peekLocalSite(s,pgbuf,cgbuf);
s = s * div;
pokeLocalSite(s,result,clbuf); pokeLocalSite(s,result,clbuf);
} }
} }
result = result*div;
// destroying plan // destroying plan
FFTW<scalar>::fftw_destroy_plan(p); FFTW<scalar>::fftw_destroy_plan(p);