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/*
* Copyright (c) 2012, Michael Lehn * * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1) Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2) Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3) Neither the name of the FLENS development group nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef FLENS_BLAS_LEVEL1_RSCAL_TCC #define FLENS_BLAS_LEVEL1_RSCAL_TCC 1 #include <cxxblas/cxxblas.h> #include <flens/auxiliary/auxiliary.h> #include <flens/blas/closures/closures.h> #include <flens/blas/level1/level1.h> #include <flens/typedefs.h> #ifdef FLENS_DEBUG_CLOSURES # include <flens/blas/blaslogon.h> #else # include <flens/blas/blaslogoff.h> #endif namespace flens { namespace blas { //-- BLAS Level 1 extensions --------------------------------------------------- //-- rscal template <typename ALPHA, typename VY> typename RestrictTo<IsDenseVector<VY>::value, void>::Type rscal(const ALPHA &alpha, VY &&y) { FLENS_BLASLOG_SETTAG("--> "); FLENS_BLASLOG_BEGIN_RSCAL(alpha, y); # ifdef HAVE_CXXBLAS_RSCAL cxxblas::rscal(y.length(), alpha, y.data(), y.stride()); # else ASSERT(0); # endif FLENS_BLASLOG_END; FLENS_BLASLOG_UNSETTAG; } //-- rscal template <typename ALPHA, typename VY> typename RestrictTo<IsTinyVector<VY>::value, void>::Type rscal(const ALPHA &alpha, VY &&y) { typedef typename RemoveRef<VY>::Type VectorY; typedef typename VectorY::ElementType TY; const int n = VectorY::Engine::length; const int incY = VectorY::Engine::stride; cxxblas::rscal<n, ALPHA, TY, incY>(alpha, y.data()); } //-- BLAS Level 1 extensions --------------------------------------------------- //-- gerscal template <typename ALPHA, typename MB> typename RestrictTo<IsGeMatrix<MB>::value, void>::Type rscal(const ALPHA &alpha, MB &&B) { FLENS_BLASLOG_SETTAG("--> "); FLENS_BLASLOG_BEGIN_RSCAL(alpha, B); # ifdef HAVE_CXXBLAS_GERSCAL typedef typename RemoveRef<MB>::Type MatrixB; cxxblas::gerscal(B.order(), B.numRows(), B.numCols(), alpha, B.data(), B.leadingDimension()); # else ASSERT(0); # endif FLENS_BLASLOG_END; FLENS_BLASLOG_UNSETTAG; } //-- gerscal template <typename ALPHA, typename MB> typename RestrictTo<IsGeTinyMatrix<MB>::value, void>::Type rscal(const ALPHA &alpha, MB &&B) { typedef typename RemoveRef<MB>::Type MatrixB; typedef typename MatrixB::ElementType TB; const int m = MatrixB::Engine::numRows; const int n = MatrixB::Engine::numCols; const int ldB = MatrixB::Engine::leadingDimension; cxxblas::gerscal<m,n,ALPHA,TB,ldB>(alpha, B.data()); } } } // namespace blas, flens #endif // FLENS_BLAS_LEVEL1_RSCAL_TCC |