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Warm-up device pool allocation #212

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vladotomov merged 3 commits into from
May 15, 2026
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Warm-up device pool allocation #212

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warm up device pool
rfhaque May 15, 2026
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May 15, 2026
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May 15, 2026
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7 changes: 7 additions & 0 deletions laghos.cpp
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Expand Up @@ -324,6 +324,13 @@ int main(int argc, char *argv[])
if (Mpi::Root()) { backend.Print(); }
backend.SetGPUAwareMPI(gpu_aware_mpi);

#ifdef LAGHOS_USE_DEVICE_UMPIRE
// Warm up the device pool on the configured GPU to avoid first-use latency.
auto allocator = rm.getAllocator(allocator_name);
void *tmp_device_ptr = allocator.allocate(umpire_dev_block_size);
allocator.deallocate(tmp_device_ptr);
#endif

// Prepare the missing kernels.
if (myid == 0) { KernelReporter::Enable(); }
using TENS = QuadratureInterpolator::TensorEvalKernels;
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