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CudaAwareMPI

Section Execution::Accel
Type logical

If Octopus was compiled with CUDA support and MPI support and if the MPI implementation is CUDA-aware (i.e., it supports communication using device pointers), this switch can be set to true to use the CUDA-aware MPI features. The advantage of this approach is that it can do, e.g., peer-to-peer copies between devices without going through the host memory. The default is false, except when the configure switch –enable-cudampi is set, in which case this variable is set to true.

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