Perftest: Add MUSA GPUDirect backend#397
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Add a first-class MUSA memory backend that follows the CUDA dynamic loading model. The backend loads libmusa at runtime, supports device memory allocation, DMA-BUF export and PCIe mapping, and exposes MUSA GPUDirect command line options. Reject plain RDMA WRITE latency tests with MUSA device memory to avoid CPU polling of GPU memory. Users must request write-with-imm explicitly for MUSA ib_write_lat. Signed-off-by: hongwei.liu <hongwei.liu@mthreads.com>
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Add a first-class Moore-Threads GPU Software Architecture MUSA memory backend that follows the CUDA dynamic loading model. The backend loads libmusa at runtime, supports device memory allocation, DMA-BUF export and PCIe mapping, and exposes MUSA GPUDirect command line options.
Reject plain RDMA WRITE latency tests with MUSA device memory to avoid CPU polling of GPU memory. Users must request write-with-imm explicitly for MUSA ib_write_lat.