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-rw-r--r--Source/Initialization/WarpXAMReXInit.cpp44
1 files changed, 44 insertions, 0 deletions
diff --git a/Source/Initialization/WarpXAMReXInit.cpp b/Source/Initialization/WarpXAMReXInit.cpp
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+++ b/Source/Initialization/WarpXAMReXInit.cpp
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+/* Copyright 2020 Axel Huebl
+ *
+ * This file is part of WarpX.
+ *
+ * License: BSD-3-Clause-LBNL
+ */
+
+#include "Initialization/WarpXAMReXInit.H"
+
+#include <AMReX_ParmParse.H>
+
+
+namespace {
+ /** Overwrite defaults in AMReX Inputs
+ *
+ * This overwrites defaults in amrex::ParamParse for inputs.
+ */
+ void
+ overwrite_amrex_parser_defaults()
+ {
+ amrex::ParmParse pp("amrex");
+
+ // https://amrex-codes.github.io/amrex/docs_html/GPU.html#inputs-parameters
+ bool abort_on_out_of_gpu_memory = true; // AMReX' default: false
+ pp.query("abort_on_out_of_gpu_memory", abort_on_out_of_gpu_memory);
+ pp.add("abort_on_out_of_gpu_memory", abort_on_out_of_gpu_memory);
+ }
+}
+
+amrex::AMReX*
+warpx_amrex_init(int& argc, char**& argv)
+{
+ // note: AMReX defines a placeholder/"mock-up" for MPI_COMM_WORLD in serial builds
+ bool const build_parm_parse = true; // AMReX' default
+ MPI_Comm const mpi_comm = MPI_COMM_WORLD; // AMReX' default
+
+ return amrex::Initialize(
+ argc,
+ argv,
+ build_parm_parse,
+ mpi_comm,
+ overwrite_amrex_parser_defaults
+ );
+}