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fix for GPU #2023

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Dec 13, 2024
Merged

fix for GPU #2023

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78 changes: 50 additions & 28 deletions Source/LinearSolvers/ERF_TerrainPoisson.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -60,48 +60,70 @@ void TerrainPoisson::apply_bcs (MultiFab& phi)
{
Box bx = mfi.tilebox();
const Array4<Real>& phi_arr = phi.array(mfi);
ParallelFor(bx, [=] AMREX_GPU_DEVICE (int i, int j, int k)
{
if (i == domlo.x) {
if (bc_fft[0].first == FFT::Boundary::even) {
if (bx.smallEnd(0) <= domlo.x) {
if (bc_fft[0].first == FFT::Boundary::even) {
ParallelFor(makeSlab(bx,0,domlo.x), [=] AMREX_GPU_DEVICE (int i, int j, int k)
{
phi_arr(i-1,j,k) = phi_arr(i,j,k);
} else if (bc_fft[0].first == FFT::Boundary::odd) {
phi_arr(i-1,j,k) = -phi_arr(i,j,k);
}
} else if (i == domhi.x) {
if (bc_fft[0].second == FFT::Boundary::even) {
});
} else if (bc_fft[0].first == FFT::Boundary::odd) {
ParallelFor(makeSlab(bx,0,domlo.x), [=] AMREX_GPU_DEVICE (int i, int j, int k)
{
phi_arr(i-1,j,k) = -phi_arr(i,j,k);
});
}
} // lo x
if (bx.bigEnd(0) >= domhi.x) {
if (bc_fft[0].second == FFT::Boundary::even) {
ParallelFor(makeSlab(bx,0,domhi.x), [=] AMREX_GPU_DEVICE (int i, int j, int k)
{
phi_arr(i+1,j,k) = phi_arr(i,j,k);
} else if (bc_fft[0].second == FFT::Boundary::odd) {
phi_arr(i+1,j,k) = -phi_arr(i,j,k);
}
});
} else if (bc_fft[0].second == FFT::Boundary::odd) {
ParallelFor(makeSlab(bx,0,domhi.x), [=] AMREX_GPU_DEVICE (int i, int j, int k)
{
phi_arr(i+1,j,k) = -phi_arr(i,j,k);
});
}
});
} // lo x
} // mfi
}
} // not periodic in x

if (!m_geom.isPeriodic(1)) {
for (MFIter mfi(phi,true); mfi.isValid(); ++mfi)
{
Box bx = mfi.tilebox();
Box bx2(bx); bx2.grow(0,1);
const Array4<Real>& phi_arr = phi.array(mfi);
ParallelFor(bx2, [=] AMREX_GPU_DEVICE (int i, int j, int k)
{
if (j == domlo.y) {
if (bc_fft[1].first == FFT::Boundary::even) {
if (bx.smallEnd(1) <= domlo.y) {
if (bc_fft[1].first == FFT::Boundary::even) {
ParallelFor(makeSlab(bx2,1,domlo.y), [=] AMREX_GPU_DEVICE (int i, int j, int k)
{
phi_arr(i,j-1,k) = phi_arr(i,j,k);
} else if (bc_fft[1].first == FFT::Boundary::odd) {
phi_arr(i,j-1,k) = -phi_arr(i,j,k);
}
} else if (j == domhi.y) {
if (bc_fft[1].second == FFT::Boundary::even) {
});
} else if (bc_fft[1].first == FFT::Boundary::odd) {
ParallelFor(makeSlab(bx2,1,domlo.y), [=] AMREX_GPU_DEVICE (int i, int j, int k)
{
phi_arr(i,j-1,k) = -phi_arr(i,j,k);
});
}
} // lo x
if (bx.bigEnd(1) >= domhi.y) {
if (bc_fft[1].second == FFT::Boundary::even) {
ParallelFor(makeSlab(bx2,1,domhi.y), [=] AMREX_GPU_DEVICE (int i, int j, int k)
{
phi_arr(i,j+1,k) = phi_arr(i,j,k);
} else if (bc_fft[1].second == FFT::Boundary::odd) {
phi_arr(i,j+1,k) = -phi_arr(i,j,k);
}
});
} else if (bc_fft[1].second == FFT::Boundary::odd) {
ParallelFor(makeSlab(bx2,1,domhi.y), [=] AMREX_GPU_DEVICE (int i, int j, int k)
{
phi_arr(i,j+1,k) = -phi_arr(i,j,k);
});
}
});
} // lo x

} // mfi
}
} // not periodic in y

for (MFIter mfi(phi,true); mfi.isValid(); ++mfi)
{
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