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* Automatically Tuned Linear Algebra Software v3.10.1
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* Copyright (C) 2010 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 ATLAS group or the names of its contributers may
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* not be used to endorse or promote products derived from this
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* software without specific written permission.
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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 ATLAS GROUP OR ITS CONTRIBUTORS
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* BE 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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#ifdef ATL_USEPTHREADS
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#include "atlas_ptalias_lapack.h"
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#include "atlas_lapack.h"
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#define mytrans CblasTrans
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int clapack_dgels(const enum CBLAS_ORDER Order,
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const enum CBLAS_TRANSPOSE TA,
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ATL_CINT M, ATL_CINT N, ATL_CINT NRHS,
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double *A, ATL_CINT lda, double *B, const int ldb)
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* GELS solves overdetermined or underdetermined linear systems
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* involving an M-by-N matrix A, or its conjugate-transpose, using a QR
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* or LQ factorization of A. It is assumed that A has full rank.
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if (Order != CblasRowMajor && Order != CblasColMajor)
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cblas_xerbla(1, "clapack_dgesv",
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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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if (TA != AtlasNoTrans && TA != mytrans)
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cblas_xerbla(2, "clapack_dgesv",
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"Trans must be %d or %d, but is set to %d.\n",
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CblasNoTrans, mytrans, TA);
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cblas_xerbla(3, "clapack_dgesv",
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"M cannot be less than zero 0,; is set to %d.\n", N);
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cblas_xerbla(4, "clapack_dgesv",
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"N cannot be less than zero 0,; is set to %d.\n", N);
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cblas_xerbla(5, "clapack_dgesv",
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"NRHS cannot be less than zero 0,; is set to %d.\n", NRHS);
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if (lda < M || lda < 1)
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cblas_xerbla(7, "clapack_dgesv",
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"lda must be >= MAX(M,1): lda=%d M=%d\n", lda, M);
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if (ldb < Mmax(M,N) || ldb < 1)
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cblas_xerbla(9, "clapack_dgesv",
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"ldb must be >= MAX(M,N,1): ldb=%d M=%d N=%d\n", ldb, M, N);
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if (Order == CblasColMajor)
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ierr = ATL_dgels(TA, M, N, NRHS, A, lda, B, ldb, NULL, 0);
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else /* row-major array */
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enum CBLAS_TRANSPOSE TAr = (TA == AtlasNoTrans) ? mytrans : CblasNoTrans;
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ierr = ATL_dgels(TAr, N, M, NRHS, A, lda, B, ldb, NULL, 0);