00001 /* @HEADER@ */ 00002 // ************************************************************************ 00003 // 00004 // Playa: Programmable Linear Algebra 00005 // Copyright 2012 Sandia Corporation 00006 // 00007 // Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation, 00008 // the U.S. Government retains certain rights in this software. 00009 // 00010 // Redistribution and use in source and binary forms, with or without 00011 // modification, are permitted provided that the following conditions are 00012 // met: 00013 // 00014 // 1. Redistributions of source code must retain the above copyright 00015 // notice, this list of conditions and the following disclaimer. 00016 // 00017 // 2. Redistributions in binary form must reproduce the above copyright 00018 // notice, this list of conditions and the following disclaimer in the 00019 // documentation and/or other materials provided with the distribution. 00020 // 00021 // 3. Neither the name of the Corporation nor the names of the 00022 // contributors may be used to endorse or promote products derived from 00023 // this software without specific prior written permission. 00024 // 00025 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY 00026 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00027 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 00028 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE 00029 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00030 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00031 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00032 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00033 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00034 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00035 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00036 // 00037 // Questions? Contact Kevin Long (kevin.long@ttu.edu) 00038 // 00039 00040 /* @HEADER@ */ 00041 00042 #include "PlayaEpetraMatrix.hpp" 00043 #include "PlayaEpetraMatrixMatrixSum.hpp" 00044 #include "PlayaEpetraVector.hpp" 00045 #include "PlayaExceptions.hpp" 00046 #include "EpetraExt_MatrixMatrix.h" 00047 00048 #ifndef HAVE_TEUCHOS_EXPLICIT_INSTANTIATION 00049 #include "PlayaVectorImpl.hpp" 00050 #include "PlayaLinearOperatorImpl.hpp" 00051 #endif 00052 00053 00054 00055 namespace Playa 00056 { 00057 using namespace Teuchos; 00058 00059 00060 LinearOperator<double> epetraMatrixMatrixSum( 00061 const LinearOperator<double>& A, 00062 const LinearOperator<double>& B) 00063 { 00064 /* Extract the underlying Epetra matrix for A. Type checking is done 00065 * ny rcp_dynamic_cast, so we need no error check here. */ 00066 RCP<const Epetra_CrsMatrix> A_crs = EpetraMatrix::getConcretePtr(A); 00067 00068 /* Extract the underlying Epetra matrix for A. Type checking is done 00069 * ny rcp_dynamic_cast, so we need no error check here. */ 00070 RCP<const Epetra_CrsMatrix> B_crs = EpetraMatrix::getConcretePtr(B); 00071 00072 bool transA = false; 00073 bool transB = false; 00074 00075 TEUCHOS_TEST_FOR_EXCEPTION(A.range() != B.range(), RuntimeError, 00076 "incompatible operand ranges in epetraMatrixMatrixSum()" 00077 << std::endl << "A.range()=" << A.range() 00078 << std::endl << "B.range()=" << B.range() 00079 ); 00080 00081 00082 TEUCHOS_TEST_FOR_EXCEPTION(A.domain() != B.domain(), RuntimeError, 00083 "incompatible operand domains in epetraMatrixMatrixSum()" 00084 << std::endl << "A.domain()=" << A.domain() 00085 << std::endl << "B.domain()=" << B.domain() 00086 ); 00087 00088 00089 /* Get the row map from A. We will need this to build the target matrix C */ 00090 const Epetra_Map* rowmap 00091 = transA ? &(A_crs->DomainMap()) : &(A_crs->RowMap()); 00092 00093 /* make the target matrix */ 00094 RCP<Epetra_CrsMatrix> C = rcp(new Epetra_CrsMatrix(Copy, *rowmap, 1)); 00095 Epetra_CrsMatrix* CPtr = C.get(); 00096 00097 /* Carry out the multiplication */ 00098 int ierr 00099 = EpetraExt::MatrixMatrix::Add( 00100 *A_crs, transA, 1.0, 00101 *B_crs, transB, 1.0, CPtr); 00102 TEUCHOS_TEST_FOR_EXCEPTION(ierr != 0, RuntimeError, 00103 "EpetraExt Matrix-matrix add failed with error code ierr=" << ierr); 00104 00105 /* Need to call FillComplete on the result */ 00106 C->FillComplete(); 00107 00108 /* Prepare an operator object for the added matrix */ 00109 RCP<LinearOperatorBase<double> > rtn 00110 = rcp(new EpetraMatrix(C, B.domain(), A.range())); 00111 return rtn; 00112 00113 } 00114 00115 }