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Teko_BlockPreconditionerFactory.cpp
00001 /*
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00003 // 
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00005 // 
00006 //      Teko: A package for block and physics based preconditioning
00007 //                  Copyright 2010 Sandia Corporation 
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00009 // Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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00045 */
00046 
00047 #include "Teko_BlockPreconditionerFactory.hpp"
00048 
00049 #include "Teko_Preconditioner.hpp"
00050 #include "Teko_InverseLibrary.hpp"
00051 
00052 #include "Thyra_DefaultPreconditioner.hpp"
00053 
00054 using namespace Thyra;
00055 
00056 namespace Teko {
00057 
00059 
00060 LinearOp BlockPreconditionerFactory::buildPreconditionerOperator(LinearOp & lo,PreconditionerState & state) const
00061 {
00062    // get the blocked linear operator
00063    RCP<LinearOpBase<double> > loA = Teuchos::rcp_const_cast<Thyra::LinearOpBase<double> >(lo);
00064    BlockedLinearOp A = Teuchos::rcp_dynamic_cast<Thyra::PhysicallyBlockedLinearOpBase<double> >(loA);
00065 
00066    state.setInitialized(false);
00067 
00068    return buildPreconditionerOperator(A,dynamic_cast<BlockPreconditionerState &>(state));
00069 }
00070 
00072 bool BlockPreconditionerFactory::isCompatible(const Thyra::LinearOpSourceBase<double> &fwdOpSrc) const
00073 {
00074    RCP<const Thyra::PhysicallyBlockedLinearOpBase<double> > A 
00075          = Teuchos::rcp_dynamic_cast<const Thyra::PhysicallyBlockedLinearOpBase<double> >(fwdOpSrc.getOp());
00076    return A!=Teuchos::null;
00077 }
00078 
00079 } // end namespace Teko
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