Commit 0031f809 authored by Tomáš Oberhuber's avatar Tomáš Oberhuber
Browse files

Basic CUDA benchmark was added.

parent 41091991

tests/benchmarks/CMakeLists.txt

+10 −1
Original line number Diff line number Diff line 
ADD_SUBDIRECTORY( share )



IF( BUILD_CUDA )

    CUDA_ADD_EXECUTABLE( tnl-cuda-benchmarks${debugExt} tnl-cuda-benchmarks.cu

                         OPTIONS ${CUDA_ADD_EXECUTABLE_OPTIONS} )

    SET_TARGET_PROPERTIES( tnl-cuda-benchmarks${debugExt} PROPERTIES CUDA_COMPILE_FLAGS "${CXX_OPTIMIZE_FLAGS}" )

    TARGET_LINK_LIBRARIES( tnl-cuda-benchmarks${debugExt} tnl${debugExt}-${tnlVersion} ${CUSPARSE_LIBRARY} )                        

    CUDA_ADD_EXECUTABLE( tnl-benchmark-spmv${debugExt} tnl-benchmark-spmv.cu

                         OPTIONS ${CUDA_ADD_EXECUTABLE_OPTIONS} )

    SET_TARGET_PROPERTIES( tnl-benchmark-spmv${debugExt} PROPERTIES CUDA_COMPILE_FLAGS "${CXX_OPTIMIZE_FLAGS}" )
@@ -19,6 +23,11 @@ ENDIF() 


TARGET_LINK_LIBRARIES( tnl-benchmark-linear-solvers${debugExt} tnl${debugExt}-${tnlVersion} )



if( BUILD_CUDA )                                                              

   INSTALL( TARGETS tnl-cuda-benchmarks${debugExt}

            RUNTIME DESTINATION bin )

endif()



INSTALL( TARGETS tnl-benchmark-spmv${debugExt}

                 tnl-benchmark-linear-solvers${debugExt}

         RUNTIME DESTINATION bin )

tests/benchmarks/tnl-benchmarks.cpp→tests/benchmarks/tnl-cuda-benchmarks.cu

+52 −0
Original line number Diff line number Diff line 
/***************************************************************************

                          tnl-benchmarks.cpp  -  description

                          tnl-cuda-benchmarks.cu  -  description

                             -------------------

    begin                : Nov 25, 2010

    copyright            : (C) 2010 by Tomas Oberhuber

    begin                : May 28, 2015

    copyright            : (C) 2015 by Tomas Oberhuber

    email                : tomas.oberhuber@fjfi.cvut.cz

 ***************************************************************************/
@@ -15,42 +15,37 @@ 
 *                                                                         *

 ***************************************************************************/





#include <core/vectors/tnlVectorHost.h>

#include <core/vectors/tnlVectorCUDA.h>

#include <tnl-benchmarks.h>



#include <core/vectors/tnlVector.h>

#include <core/tnlTimerRT.h>



int main( int argc, char* argv[] )

{



#ifdef HAVE_CUDA



    tnlTimerRT timer;

    const double oneGB = 1024.0 * 1024.0 * 1024.0;



    cout << "Benchmarking memory bandwidth when transfering int ..." << endl;



    const int size = 1 << 22;

   double host_to_host_band_width;

   double host_to_device_band_width;

   double device_to_host_band_width;

   double device_to_device_band_width;

    

   transferBenchmark< int >( size,

                             host_to_host_band_width,

                             host_to_device_band_width,

                             device_to_host_band_width,

                             device_to_device_band_width );

    tnlVector< int, tnlHost > hostVector;

    tnlVector< int, tnlCuda > deviceVector;

    hostVector.setSize( size );

    deviceVector.setSize( size );



    hostVector.setValue( 1.0 );

    deviceVector.setValue( 0.0 );

    

    timer.reset();

    timer.start();

    deviceVector = hostVector;

    timer.stop();

    

   cout << "Benchmarking reduction of int ..." << endl;

   for( int i = 0; i <= 6; i ++ )

      reductionBenchmark< int >( size, i );

    double bandwidth = ( double ) ( size ) * sizeof( int ) / timer.getTime() / oneGB;



   cout << "Benchmarking reduction of float ..." << endl;

   for( int i = 0; i <= 6; i ++ )

      reductionBenchmark< float >( size, i );

    cout << bandwidth << " GB/sec." << endl;



   cout << "Benchmarking reduction of double ..." << endl;

   for( int i = 0; i <= 6; i ++ )

      reductionBenchmark< double >( size / 2, i );

   

#endif

   return EXIT_SUCCESS;