Tpetra Matrix/Vector Services Version of the Day
IRTR_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 <IRTRDriver.hpp>
00056 
00061 int main(int argc, char *argv[])
00062 {
00063   using Teuchos::RCP;
00064   using Teuchos::rcp;
00065   using Teuchos::Comm;
00066   using Teuchos::ParameterList;
00067 
00068   // 
00069   // Get the communicator
00070   //
00071   Teuchos::oblackholestream blackhole;
00072   Teuchos::GlobalMPISession mpiSession(&argc,&argv,&blackhole);
00073   auto comm = Tpetra::DefaultPlatform::getDefaultPlatform().getComm();
00074   const int myImageID = comm->getRank();
00075 
00076   //
00077   // Get example parameters from command-line processor
00078   //  
00079   bool verbose = (myImageID==0);
00080   std::string matfile;
00081   std::string xmlfile;
00082   std::string machineFile;
00083   Teuchos::CommandLineProcessor cmdp(false,true);
00084   cmdp.setOption("verbose","quiet",&verbose,"Print messages and results.");
00085   cmdp.setOption("matrix-file",&matfile,"Filename for matrix");
00086   cmdp.setOption("param-file", &xmlfile,"XML file for solver parameters");
00087   cmdp.setOption("machine-file",&machineFile,"Filename for XML machine description file.");
00088   if (cmdp.parse(argc,argv) != Teuchos::CommandLineProcessor::PARSE_SUCCESSFUL) {
00089     return -1;
00090   }
00091 
00092   // 
00093   // read machine file and initialize platform
00094   // 
00095   RCP<Teuchos::ParameterList> machinePL = Teuchos::parameterList();
00096   std::string defaultMachine(
00097     " <ParameterList>                                                               "
00098     "   <ParameterList name='%1=0'>                                                 "
00099     "     <Parameter name='NodeType'     type='string' value='Kokkos::SerialNode'/> "
00100     "   </ParameterList>                                                            "
00101     " </ParameterList>                                                              "
00102   );
00103   Teuchos::updateParametersFromXmlString(defaultMachine,machinePL.ptr());
00104   if (machineFile != "") Teuchos::updateParametersFromXmlFile(machineFile,machinePL.ptr());
00105 
00106   // 
00107   // create the platform object
00108   // 
00109   Tpetra::HybridPlatform platform(comm,*machinePL);
00110 
00111   // 
00112   // Define the scalar type
00113   // 
00114   typedef double Scalar;
00115 
00116   //
00117   // instantiate a driver on the scalar stack
00118   //
00119   IRTR_Driver<Scalar> driver;
00120   // hand output stream to driver
00121   if (verbose) driver.out = Teuchos::getFancyOStream(Teuchos::rcp(&std::cout,false));
00122   else         driver.out = Teuchos::getFancyOStream(Teuchos::rcp(new Teuchos::oblackholestream()));
00123   // hand matrix file to driver
00124   driver.matrixFile = matfile;
00125 
00126   //
00127   // get the solver parameters
00128   // 
00129   RCP<Teuchos::ParameterList> params = Teuchos::parameterList();
00130   // default solver stack parameters
00131   std::string xmlString(
00132     " <ParameterList>                                                       \n"
00133     "   <Parameter name='tolerance' value='5e-15' type='double'/>           \n"
00134     "   <Parameter name='verbose' value='1' type='int'/>                    \n"
00135     "   <Parameter name='rho_prime' value='.1' type='double'/>              \n"
00136     "   <Parameter name='kappa' value='.1' type='double'/>                  \n"
00137     "   <Parameter name='theta' value='2'  type='double'/>                  \n"
00138     " </ParameterList>                                                      \n"
00139   );
00140   Teuchos::updateParametersFromXmlString(xmlString,params.ptr());
00141   if (xmlfile != "") Teuchos::updateParametersFromXmlFile(xmlfile,params.ptr());
00142   // hand solver parameters to driver
00143   driver.params = params;
00144 
00145   // 
00146   // run the driver
00147   // 
00148   platform.runUserCode(driver);
00149 
00150   //
00151   // Print result
00152   if (driver.testPassed) {
00153     *driver.out << "End Result: TEST PASSED" << std::endl;
00154   }
00155 
00156   return 0;
00157 }
00158 
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