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fix Abs for FabArray #1004

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merged 1 commit into from
Jun 25, 2020
Merged

fix Abs for FabArray #1004

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13 changes: 6 additions & 7 deletions Src/Base/AMReX_FabArrayUtility.H
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Original file line number Diff line number Diff line change
Expand Up @@ -1592,29 +1592,28 @@ Divide (FabArray<FAB>& dst, FabArray<FAB> const& src, int srccomp, int dstcomp,
template <class FAB,
class bar = amrex::EnableIf_t<IsBaseFab<FAB>::value> >
void
Abs (FabArray<FAB>& dst, FabArray<FAB> const& src, int srccomp, int dstcomp, int numcomp, int nghost)
Abs (FabArray<FAB>& fa, int icomp, int numcomp, int nghost)
{
Abs(dst,src,srccomp,dstcomp,numcomp,IntVect(nghost));
Abs(fa,icomp,numcomp,IntVect(nghost));
}

template <class FAB,
class bar = amrex::EnableIf_t<IsBaseFab<FAB>::value> >
void
Abs (FabArray<FAB>& dst, FabArray<FAB> const& src, int srccomp, int dstcomp, int numcomp, const IntVect& nghost)
Abs (FabArray<FAB>& fa, int icomp, int numcomp, const IntVect& nghost)
{
#ifdef _OPENMP
#pragma omp parallel if (Gpu::notInLaunchRegion())
#endif
for (MFIter mfi(dst,TilingIfNotGPU()); mfi.isValid(); ++mfi)
for (MFIter mfi(fa,TilingIfNotGPU()); mfi.isValid(); ++mfi)
{
const Box& bx = mfi.growntilebox(nghost);
if (bx.ok())
{
auto const srcFab = src.array(mfi);
auto dstFab = dst.array(mfi);
auto const& fab = fa.array(mfi);
AMREX_HOST_DEVICE_PARALLEL_FOR_4D ( bx, numcomp, i, j, k, n,
{
dstFab(i,j,k,n+dstcomp) /= srcFab(i,j,k,n+srccomp);
fab(i,j,k,n+icomp) = amrex::Math::abs(fab(i,j,k,n+icomp));
});
}
}
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