Tpetra Matrix/Vector Services Version of the Day
IRTR_qd_double.cpp
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00005 //          Tpetra: Templated Linear Algebra Services Package
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00043 
00044 #include <Teuchos_CommandLineProcessor.hpp>
00045 #include <Teuchos_GlobalMPISession.hpp>
00046 #include <Teuchos_oblackholestream.hpp>
00047 #include <Teuchos_XMLParameterListHelpers.hpp>
00048 
00049 #include <Tpetra_DefaultPlatform.hpp>
00050 #include <Tpetra_HybridPlatform.hpp>
00051 #include <TpetraExt_TypeStack.hpp>
00052 
00053 #include <iostream>
00054 
00055 #include <qd/qd_real.h>
00056 #include <IRTRDriver.hpp>
00057 
00062 int main(int argc, char *argv[])
00063 {
00064   using Teuchos::RCP;
00065   using Teuchos::rcp;
00066   using Teuchos::Comm;
00067   using Teuchos::ParameterList;
00068 
00069   // 
00070   // Get the communicator
00071   //
00072   Teuchos::oblackholestream blackhole;
00073   Teuchos::GlobalMPISession mpiSession(&argc,&argv,&blackhole);
00074   auto comm = Tpetra::DefaultPlatform::getDefaultPlatform().getComm();
00075   const int myImageID = comm->getRank();
00076 
00077   //
00078   // Get example parameters from command-line processor
00079   //  
00080   bool verbose = (myImageID==0);
00081   std::string matfile;
00082   std::string xmlfile;
00083   std::string machineFile;
00084   Teuchos::CommandLineProcessor cmdp(false,true);
00085   cmdp.setOption("verbose","quiet",&verbose,"Print messages and results.");
00086   cmdp.setOption("matrix-file",&matfile,"Filename for matrix");
00087   cmdp.setOption("param-file", &xmlfile,"XML file for solver parameters");
00088   cmdp.setOption("machine-file",&machineFile,"Filename for XML machine description file.");
00089   if (cmdp.parse(argc,argv) != Teuchos::CommandLineProcessor::PARSE_SUCCESSFUL) {
00090     return -1;
00091   }
00092 
00093   // 
00094   // read machine file and initialize platform
00095   // 
00096   RCP<Teuchos::ParameterList> machinePL = Teuchos::parameterList();
00097   std::string defaultMachine(
00098     " <ParameterList>                                                               "
00099     "   <ParameterList name='%1=0'>                                                 "
00100     "     <Parameter name='NodeType'     type='string' value='Kokkos::SerialNode'/> "
00101     "   </ParameterList>                                                            "
00102     " </ParameterList>                                                              "
00103   );
00104   Teuchos::updateParametersFromXmlString(defaultMachine,machinePL.ptr());
00105   if (machineFile != "") Teuchos::updateParametersFromXmlFile(machineFile,machinePL.ptr());
00106 
00107   // 
00108   // create the platform object
00109   // 
00110   Tpetra::HybridPlatform platform(comm,*machinePL);
00111 
00112   // 
00113   // Define the scalar type
00114   // 
00115   typedef qd_real Scalar;
00116   typedef double ScalarInner;
00117 
00118   //
00119   // instantiate a driver on the scalar stack
00120   //
00121   IRTR_Driver<Scalar,ScalarInner> driver;
00122   // hand output stream to driver
00123   if (verbose) driver.out = Teuchos::getFancyOStream(Teuchos::rcp(&std::cout,false));
00124   else         driver.out = Teuchos::getFancyOStream(Teuchos::rcp(new Teuchos::oblackholestream()));
00125   // hand matrix file to driver
00126   driver.matrixFile = matfile;
00127 
00128   //
00129   // get the solver parameters
00130   // 
00131   RCP<Teuchos::ParameterList> params = Teuchos::parameterList();
00132   // default solver stack parameters
00133   std::string xmlString(
00134     " <ParameterList>                                                       \n"
00135     "   <Parameter name='tolerance' value='1e-62' type='double'/>           \n"
00136     "   <Parameter name='verbose' value='1' type='int'/>                    \n"
00137     "   <Parameter name='rho_prime' value='.1' type='double'/>              \n"
00138     "   <Parameter name='kappa' value='.1' type='double'/>                  \n"
00139     "   <Parameter name='theta' value='2'  type='double'/>                  \n"
00140     " </ParameterList>                                                      \n"
00141   );
00142   Teuchos::updateParametersFromXmlString(xmlString,params.ptr());
00143   if (xmlfile != "") Teuchos::updateParametersFromXmlFile(xmlfile,params.ptr());
00144   // hand solver parameters to driver
00145   driver.params = params;
00146 
00147   // 
00148   // run the driver
00149   // 
00150   platform.runUserCode(driver);
00151 
00152   //
00153   // Print result
00154   if (driver.testPassed) {
00155     *driver.out << "End Result: TEST PASSED" << std::endl;
00156   }
00157 
00158   return 0;
00159 }
00160 
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