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Initialize HIP ASAP #988

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Merged
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Oct 6, 2025
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Initialize HIP ASAP #988

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11 changes: 10 additions & 1 deletion Source/main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -56,7 +56,16 @@ main(int argc, char* argv[])
}
}

// Make sure to catch new failures.
#ifdef AMREX_USE_HIP
// Explicitly initialize the HIP runtime before MPI/AMReX to avoid lazy init
// race conditions at scale.
hipError_t herr = hipInit(0);
if (herr != hipSuccess) {
fprintf(stderr, "hipInit failed: %s\n", hipGetErrorString(herr));
return 1;
}
#endif

amrex::Initialize(
argc, argv, true, MPI_COMM_WORLD, override_default_parameters);
// Defined and initialized when in gnumake, but not defined in cmake and
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