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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00042 */
00043 
00044 #include <iostream>
00045 #include <qd/qd_real.h>
00046 
00047 #include <Teuchos_CommandLineProcessor.hpp>
00048 #include <Teuchos_GlobalMPISession.hpp>
00049 #include <Teuchos_oblackholestream.hpp>
00050 #include <Teuchos_XMLParameterListHelpers.hpp>
00051 
00052 #include <Tpetra_DefaultPlatform.hpp>
00053 #include <TpetraExt_TypeStack.hpp>
00054 
00055 #include <IRTRDriver.hpp>
00056 
00057 // no CXX11 on the GPU
00058 #undef HAVE_KOKKOSCLASSIC_THRUST
00059 #include <Tpetra_HybridPlatform.hpp>
00060 
00065 int main(int argc, char *argv[])
00066 {
00067   using Teuchos::RCP;
00068   using Teuchos::rcp;
00069   using Teuchos::Comm;
00070   using Teuchos::ParameterList;
00071 
00072   // 
00073   // Get the communicator
00074   //
00075   Teuchos::oblackholestream blackhole;
00076   Teuchos::GlobalMPISession mpiSession(&argc,&argv,&blackhole);
00077   auto comm = Tpetra::DefaultPlatform::getDefaultPlatform().getComm();
00078   const int myImageID = comm->getRank();
00079 
00080   //
00081   // Get example parameters from command-line processor
00082   //  
00083   bool verbose = (myImageID==0);
00084   std::string matfile;
00085   std::string xmlfile;
00086   std::string machineFile;
00087   Teuchos::CommandLineProcessor cmdp(false,true);
00088   cmdp.setOption("verbose","quiet",&verbose,"Print messages and results.");
00089   cmdp.setOption("matrix-file",&matfile,"Filename for matrix");
00090   cmdp.setOption("param-file", &xmlfile,"XML file for solver parameters");
00091   cmdp.setOption("machine-file",&machineFile,"Filename for XML machine description file.");
00092   if (cmdp.parse(argc,argv) != Teuchos::CommandLineProcessor::PARSE_SUCCESSFUL) {
00093     return -1;
00094   }
00095 
00096   // 
00097   // read machine file and initialize platform
00098   // 
00099   RCP<Teuchos::ParameterList> machinePL = Teuchos::parameterList();
00100   std::string defaultMachine(
00101     " <ParameterList>                                                               "
00102     "   <ParameterList name='%1=0'>                                                 "
00103     "     <Parameter name='NodeType'     type='string' value='KokkosClassic::SerialNode'/> "
00104     "   </ParameterList>                                                            "
00105     " </ParameterList>                                                              "
00106   );
00107   Teuchos::updateParametersFromXmlString(defaultMachine,machinePL.ptr());
00108   if (machineFile != "") Teuchos::updateParametersFromXmlFile(machineFile,machinePL.ptr());
00109 
00110   // 
00111   // create the platform object
00112   // 
00113   Tpetra::HybridPlatform platform(comm,*machinePL);
00114 
00115   // 
00116   // Define the scalar type
00117   // 
00118   typedef qd_real Scalar;
00119   typedef double ScalarInner;
00120 
00121   //
00122   // instantiate a driver on the scalar stack
00123   //
00124   IRTR_Driver<Scalar,ScalarInner> driver;
00125   // hand output stream to driver
00126   if (verbose) driver.out = Teuchos::getFancyOStream(Teuchos::rcp(&std::cout,false));
00127   else         driver.out = Teuchos::getFancyOStream(Teuchos::rcp(new Teuchos::oblackholestream()));
00128   // hand matrix file to driver
00129   driver.matrixFile = matfile;
00130 
00131   //
00132   // get the solver parameters
00133   // 
00134   RCP<Teuchos::ParameterList> params = Teuchos::parameterList();
00135   // default solver stack parameters
00136   std::string xmlString(
00137     " <ParameterList>                                                       \n"
00138     "   <Parameter name='tolerance' value='1e-62' type='double'/>           \n"
00139     "   <Parameter name='verbose' value='1' type='int'/>                    \n"
00140     "   <Parameter name='rho_prime' value='.1' type='double'/>              \n"
00141     "   <Parameter name='kappa' value='.1' type='double'/>                  \n"
00142     "   <Parameter name='theta' value='2'  type='double'/>                  \n"
00143     " </ParameterList>                                                      \n"
00144   );
00145   Teuchos::updateParametersFromXmlString(xmlString,params.ptr());
00146   if (xmlfile != "") Teuchos::updateParametersFromXmlFile(xmlfile,params.ptr());
00147   // hand solver parameters to driver
00148   driver.params = params;
00149 
00150   // 
00151   // run the driver
00152   // 
00153   platform.runUserCode(driver);
00154 
00155   //
00156   // Print result
00157   if (driver.testPassed) {
00158     *driver.out << "End Result: TEST PASSED" << std::endl;
00159   }
00160 
00161   return 0;
00162 }
00163 
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