Commit fb1474d3 authored by Jakub Klinkovský's avatar Jakub Klinkovský
Browse files

Added benchmarks for lpNorm to tnl-cuda-benchmarks

parent d2514e28

tests/benchmarks/tnl-cuda-benchmarks.h

+30 −0
Original line number Diff line number Diff line
@@ -101,6 +101,7 @@ int main( int argc, char* argv[] ) 
    */



   Real resultHost, resultDevice, timeHost, timeDevice;



   cout << "Benchmarking scalar product on CPU: ";

   timer.reset();

   timer.start();
@@ -147,6 +148,35 @@ int main( int argc, char* argv[] ) 
#endif    

#endif

   



   cout << "Benchmarking lpNorm on CPU: ";

   timer.reset();

   timer.start();

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

     resultHost = hostVector.lpNorm( 2.0 );

   timer.stop();

   timeHost = timer.getTime();

   bandwidth = 2 * datasetSize / timer.getTime();

   cout << "bandwidth: " << bandwidth << " GB/sec, time: " << timer.getTime() << " sec." << endl;

    

   cout << "Benchmarking lpNorm on GPU: ";

   timer.reset();

   timer.start();

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

      resultDevice = deviceVector.lpNorm( 2.0 );

   timer.stop();

   timeDevice = timer.getTime();

   bandwidth = 2 * datasetSize / timer.getTime();

   cout << "bandwidth: " << bandwidth << " GB/sec, time: " << timer.getTime() << " sec." << endl;

   cout << "CPU/GPU speedup: " << timeHost / timeDevice << endl;



   if( resultHost != resultDevice )

   {

      cerr << "Error. " << resultHost << " != " << resultDevice << endl;

      //return EXIT_FAILURE;

   }





   cout << "Benchmarking prefix-sum on CPU: ";

   timer.reset();

   timer.start();