SVDCPU.cpp

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#include "cloudViewer/core/linalg/LapackWrapper.h"
#include "cloudViewer/core/linalg/LinalgUtils.h"
#include "cloudViewer/core/linalg/SVD.h"
 
namespace cloudViewer {
namespace core {
 
void SVDCPU(const void* A_data,
            void* U_data,
            void* S_data,
            void* VT_data,
            void* superb_data,
            int64_t m,
            int64_t n,
            Dtype dtype,
            const Device& device) {
    DISPATCH_LINALG_DTYPE_TO_TEMPLATE(dtype, [&]() {
        OPEN3D_LAPACK_CHECK(
                gesvd_cpu<scalar_t>(
                        LAPACK_COL_MAJOR, 'A', 'A', m, n,
                        const_cast<scalar_t*>(
                                static_cast<const scalar_t*>(A_data)),
                        m, static_cast<scalar_t*>(S_data),
                        static_cast<scalar_t*>(U_data), m,
                        static_cast<scalar_t*>(VT_data), n,
                        static_cast<scalar_t*>(superb_data)),
                "gesvd failed in SVDCPU");
    });
}
 
}  // namespace core
}  // namespace cloudViewer