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* Automatically Tuned Linear Algebra Software v3.2
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* (C) Copyright 1999 R. Clint Whaley
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions, and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the University of Tennessee, the ATLAS group,
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* or the names of its contributers may not be used to endorse
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* or promote products derived from this software without specific
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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#include "atlas_misc.h"
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#include "atlas_lapack.h"
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int clapack_cgesv(const enum CBLAS_ORDER Order, const int N, const int NRHS,
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void *A, const int lda, int *ipiv,
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void *B, const int ldb)
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* clapack_cgesv computes the solution to a system of linear equations
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* where A is an N-by-N matrix and X and B are N-by-NRHS matrices.
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* The LU factorization used to factor A is dependent on the Order parameter,
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* as detailed in the leading comments of clapack_cgetrf.
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* The factored form of A is then used solve the system of equations A * X = B.
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* A is overwritten with the appropriate LU factorization, and B, which
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* contains B on input, is overwritten with the solution X on output.
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if (Order != CblasRowMajor && Order != CblasColMajor)
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cblas_xerbla(1, "clapack_cgesv",
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"Order must be %d or %d, but is set to %d.\n",
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CblasRowMajor, CblasColMajor, Order);
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cblas_xerbla(2, "clapack_cgesv",
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"N cannot be less than zero 0,; is set to %d.\n", N);
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cblas_xerbla(3, "clapack_cgesv",
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"NRHS cannot be less than zero 0,; is set to %d.\n", NRHS);
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if (lda < N || lda < 1)
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cblas_xerbla(5, "clapack_cgesv",
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"lda must be >= MAX(N,1): lda=%d N=%d\n", lda, N);
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if (ldb < N || ldb < 1)
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cblas_xerbla(8, "clapack_cgesv",
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"ldb must be >= MAX(N,1): ldb=%d N=%d\n", ldb, N);
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ierr = ATL_cgetrf(Order, N, N, A, lda, ipiv);
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ATL_cgetrs(Order, CblasNoTrans, N, NRHS, A, lda, ipiv, B, ldb);
added
removed
interfaces/lapack/C/src/clapack_cgesv.c
