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Tsqr_Blas.hpp
00001 // @HEADER
00002 // ***********************************************************************
00003 //
00004 //                 Anasazi: Block Eigensolvers Package
00005 //                 Copyright (2010) Sandia Corporation
00006 //
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 //
00010 // This library is free software; you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as
00012 // published by the Free Software Foundation; either version 2.1 of the
00013 // License, or (at your option) any later version.
00014 //
00015 // This library is distributed in the hope that it will be useful, but
00016 // WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00023 // USA
00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov)
00025 //
00026 // ***********************************************************************
00027 // @HEADER
00028 
00029 #ifndef __TSQR_TsqrBlas_hpp
00030 #define __TSQR_TsqrBlas_hpp
00031 
00034 
00035 namespace TSQR {
00036 
00037   template< class Ordinal, class Scalar >
00038   class BLAS {
00039   public:
00040     BLAS () {}
00041 
00042     void 
00043     GEMV (const char* const trans, 
00044     const Ordinal m, 
00045     const Ordinal n,
00046     const Scalar alpha,
00047     const Scalar A[],
00048     const Ordinal lda,
00049     const Scalar x[],
00050     const Ordinal incx,
00051     const Scalar beta,
00052     Scalar y[],
00053     const Ordinal incy);
00054 
00055     void
00056     GEMM (const char* const transa,
00057     const char* const transb,
00058     const Ordinal m,
00059     const Ordinal n,
00060     const Ordinal k,
00061     const Scalar alpha,
00062     const Scalar A[],
00063     const Ordinal lda,
00064     const Scalar B[],
00065     const Ordinal ldb,
00066     const Scalar beta,
00067     Scalar C[],
00068     const Ordinal ldc);
00069 
00073     void
00074     GER (const Ordinal m,
00075    const Ordinal n,
00076    const Scalar alpha,
00077    const Scalar x[],
00078    const Ordinal incx,
00079    const Scalar y[],
00080    const Ordinal incy,
00081    Scalar A[],
00082    const Ordinal lda);
00083 
00084     void
00085     TRSM (const char* const side,
00086     const char* const uplo,
00087     const char* const transa,
00088     const char* const diag,
00089     const Ordinal m,
00090     const Ordinal n,
00091     const Scalar alpha,
00092     const Scalar A[],
00093     const Ordinal lda,
00094     Scalar B[],
00095     const Ordinal ldb);
00096 
00097   private:
00098     BLAS (const BLAS&);
00099     BLAS& operator= (const BLAS&);
00100   };
00101 
00102 } // namespace TSQR
00103 
00104 #endif // __TSQR_TsqrBlas_hpp
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