Teko Version of the Day
Teko_BlockImplicitLinearOp.cpp
00001 /*
00002 // @HEADER
00003 // 
00004 // ***********************************************************************
00005 // 
00006 //      Teko: A package for block and physics based preconditioning
00007 //                  Copyright 2010 Sandia Corporation 
00008 //  
00009 // Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
00010 // the U.S. Government retains certain rights in this software.
00011 //  
00012 // Redistribution and use in source and binary forms, with or without
00013 // modification, are permitted provided that the following conditions are
00014 // met:
00015 //  
00016 // 1. Redistributions of source code must retain the above copyright
00017 // notice, this list of conditions and the following disclaimer.
00018 //  
00019 // 2. Redistributions in binary form must reproduce the above copyright
00020 // notice, this list of conditions and the following disclaimer in the
00021 // documentation and/or other materials provided with the distribution.
00022 //  
00023 // 3. Neither the name of the Corporation nor the names of the
00024 // contributors may be used to endorse or promote products derived from
00025 // this software without specific prior written permission. 
00026 //  
00027 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
00028 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00029 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
00030 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
00031 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00032 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00033 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00034 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00035 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
00036 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00037 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00038 //  
00039 // Questions? Contact Eric C. Cyr (eccyr@sandia.gov)
00040 // 
00041 // ***********************************************************************
00042 // 
00043 // @HEADER
00044 
00045 */
00046 
00047 #include "Teko_BlockImplicitLinearOp.hpp"
00048 
00049 namespace Teko {
00050 
00051 using Teuchos::rcpFromRef;
00052 using Teuchos::rcp_dynamic_cast;
00053 using Teuchos::rcp_const_cast;
00054 using Teuchos::RCP;
00055 
00056 using Thyra::ProductMultiVectorBase;
00057 
00058 bool BlockImplicitLinearOp::opSupportedImpl(const Thyra::EOpTransp M_trans) const
00059 {
00060   return (M_trans == Thyra::NOTRANS);
00061 }
00062 
00063 void BlockImplicitLinearOp::applyImpl(
00064   const Thyra::EOpTransp M_trans,
00065   const Thyra::MultiVectorBase<double> & x,
00066   const Teuchos::Ptr<Thyra::MultiVectorBase<double> > & y,
00067   const double alpha,
00068   const double beta
00069   ) const
00070 {
00071    TEST_FOR_EXCEPTION(M_trans!=Thyra::NOTRANS, std::runtime_error,
00072      "Linear operators of inherited type BlockImplicitLinearOp "
00073      "cannot handle conjugation (yet!)");
00074 
00075    // cast source vector
00076    RCP<const ProductMultiVectorBase<double> > src =
00077      rcp_dynamic_cast<const ProductMultiVectorBase<double> >(rcpFromRef(x));
00078    BlockedMultiVector srcX = rcp_const_cast<ProductMultiVectorBase<double> >(src);
00079 
00080    // cast destination vector
00081    BlockedMultiVector destY =
00082      rcp_dynamic_cast<ProductMultiVectorBase<double> >(rcpFromPtr(y));
00083 
00084    // call apply
00085    implicitApply(srcX,destY,alpha,beta);
00086 }
00087  
00088 } // end namespace Teko
 All Classes Files Functions Variables