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shared device umpire pool #198

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shared device umpire pool #198

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22 changes: 22 additions & 0 deletions laghos.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,12 @@
#include <adiak.hpp>
#endif

#if (defined(HYPRE_USING_UMPIRE) || defined(MFEM_USE_UMPIRE)) && (defined(MFEM_USE_CUDA) || defined(MFEM_USE_HIP))
#define LAGHOS_USE_DEVICE_UMPIRE
#include <umpire/Umpire.hpp>
#include <umpire/strategy/QuickPool.hpp>
#endif

using std::cout;
using std::endl;
using namespace mfem;
Expand Down Expand Up @@ -235,6 +241,22 @@ int main(int argc, char *argv[])
adiak::jobsize();
#endif

#ifdef LAGHOS_USE_DEVICE_UMPIRE
auto &rm = umpire::ResourceManager::getInstance();
const char * allocator_name = "laghos_device_alloc";
rm.makeAllocator<umpire::strategy::QuickPool>(allocator_name, rm.getAllocator("DEVICE"));

#ifdef HYPRE_USING_UMPIRE
HYPRE_SetUmpireDevicePoolName(allocator_name);
#endif // HYPRE_USING_UMPIRE

#ifdef MFEM_USE_UMPIRE
MemoryManager::SetUmpireDeviceAllocatorName(allocator_name);
// the umpire host memory type is slow compared to the native host memory type
Device::SetMemoryTypes(MemoryType::HOST, MemoryType::DEVICE_UMPIRE);
#endif // MFEM_USING_UMPIRE
#endif // LAGHOS_USE_DEVICE_UMPIRE

// Configure the device from the command line options
Device backend;
backend.Configure(device, dev);
Expand Down