MatmulCUDA.cpp

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#include <Logging.h>
 
#include "cloudViewer/core/linalg/BlasWrapper.h"
#include "cloudViewer/core/linalg/LinalgUtils.h"
#include "cloudViewer/core/linalg/Matmul.h"
 
namespace cloudViewer {
namespace core {
 
void MatmulCUDA(void* A_data,
                void* B_data,
                void* C_data,
                int64_t m,
                int64_t k,
                int64_t n,
                Dtype dtype,
                const Device& device) {
    cublasHandle_t handle = CuBLASContext::GetInstance().GetHandle(device);
    DISPATCH_LINALG_DTYPE_TO_TEMPLATE(dtype, [&]() {
        scalar_t alpha = 1, beta = 0;
        OPEN3D_CUBLAS_CHECK(
                gemm_cuda<scalar_t>(handle, CUBLAS_OP_N, CUBLAS_OP_N, m, n, k,
                                    &alpha,
                                    static_cast<const scalar_t*>(A_data), m,
                                    static_cast<const scalar_t*>(B_data), k,
                                    &beta, static_cast<scalar_t*>(C_data), m),
                "cuda gemm failed");
    });
}
 
}  // namespace core
}  // namespace cloudViewer