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authorGravatar Axel Huebl <axel.huebl@plasma.ninja> 2021-01-21 11:33:38 -0800
committerGravatar GitHub <noreply@github.com> 2021-01-21 11:33:38 -0800
commit16ba48a9ae1c28817481007ba93cc20aedba9cf2 (patch)
treeb39c60ca874eedff8006386ad4593ae94855509d /Source/FieldSolver/FiniteDifferenceSolver/EvolveE.cpp
parenteef853b9ab231537e2511efa56a415119e791b26 (diff)
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Define: _OPENMP -> AMREX_USE_OMP (#1520)
* Define: _OPENMP -> AMREX_USE_OMP Replace the define check of `_OPENMP` with the explicit backend control of `AMREX_USE_OMP` for parallel constructs. Doing so avoids that we accidentially turn on OpenMP, e.g. if a dependency pulls it in for linear algebra, I/O, etc. This can led to confusion if the user explicitly requested a serial build. Also, we might want to use OpenMP functionality here and there for auxiliary functions w/o having to use the AMReX OpenMP backend, i.e. because we compile for GPUs. * Add missing amrex::Gpu::notInLaunchRegion
Diffstat (limited to 'Source/FieldSolver/FiniteDifferenceSolver/EvolveE.cpp')
-rw-r--r--Source/FieldSolver/FiniteDifferenceSolver/EvolveE.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/Source/FieldSolver/FiniteDifferenceSolver/EvolveE.cpp b/Source/FieldSolver/FiniteDifferenceSolver/EvolveE.cpp
index db1d1fe1b..3762d3f71 100644
--- a/Source/FieldSolver/FiniteDifferenceSolver/EvolveE.cpp
+++ b/Source/FieldSolver/FiniteDifferenceSolver/EvolveE.cpp
@@ -71,7 +71,7 @@ void FiniteDifferenceSolver::EvolveECartesian (
Real constexpr c2 = PhysConst::c * PhysConst::c;
// Loop through the grids, and over the tiles within each grid
-#ifdef _OPENMP
+#ifdef AMREX_USE_OMP
#pragma omp parallel if (amrex::Gpu::notInLaunchRegion())
#endif
for ( MFIter mfi(*Efield[0], TilingIfNotGPU()); mfi.isValid(); ++mfi ) {
@@ -165,7 +165,7 @@ void FiniteDifferenceSolver::EvolveECylindrical (
amrex::Real const dt ) {
// Loop through the grids, and over the tiles within each grid
-#ifdef _OPENMP
+#ifdef AMREX_USE_OMP
#pragma omp parallel if (amrex::Gpu::notInLaunchRegion())
#endif
for ( MFIter mfi(*Efield[0], TilingIfNotGPU()); mfi.isValid(); ++mfi ) {