Commit 3de4fa58 authored by Jakub Klinkovský's avatar Jakub Klinkovský
Browse files

Reorganized output of CUDA benchmarks

parent 75742f7c

tests/benchmarks/tnl-cuda-benchmarks.h

+40 −31
Original line number Diff line number Diff line
@@ -108,8 +108,9 @@ int main( int argc, char* argv[] ) 


   tnlTimerRT timer;

   double bandwidth( 0.0 );

   Real resultHost, resultDevice, timeHost, timeDevice;





   /*   

   cout << "Benchmarking CPU-GPU memory bandwidth: ";

   timer.reset();

   timer.start();
@@ -119,29 +120,36 @@ int main( int argc, char* argv[] ) 
   bandwidth = datasetSize / timer.getTime();

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

    

   cout << "Benchmarking vector addition on CPU: ";



   cout << "Benchmarking vector addition:" << endl;

   timer.reset();

   timer.start();

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

     hostVector.addVector( hostVector2 );

   timer.stop();

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

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

   timeHost = timer.getTime();

   bandwidth = 3 * datasetSize / timer.getTime();

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

    

    cout << "Benchmarking vector addition on GPU: ";

   timer.reset();

   timer.start();

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

     deviceVector.addVector( deviceVector2 );

   cudaThreadSynchronize();

   timer.stop();

   timeDevice = timer.getTime();

   bandwidth = 3 * datasetSize / timer.getTime();

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

    */

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

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



   Real resultHost, resultDevice, timeHost, timeDevice;



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

   hostVector.setValue( 1.0 );

   deviceVector.setValue( 1.0 );

   hostVector2.setValue( 1.0 );

   deviceVector2.setValue( 1.0 );





   cout << "Benchmarking scalar product:" << endl;

   timer.reset();

   timer.start();

   for( int i = 0; i < loops; i++ )
@@ -149,9 +157,8 @@ int main( int argc, char* argv[] ) 
   timer.stop();

   timeHost = timer.getTime();

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

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

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

    

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

   timer.reset();

   timer.start();

   for( int i = 0; i < loops; i++ )
@@ -159,7 +166,7 @@ int main( int argc, char* argv[] ) 
   timer.stop();

   timeDevice = timer.getTime();

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

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

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

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



   if( resultHost != resultDevice )
@@ -183,51 +190,53 @@ int main( int argc, char* argv[] ) 
   cudaThreadSynchronize();

   timer.stop();

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

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

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

#endif    



   cout << "Benchmarking L2 norm on CPU: ";

   cout << "Benchmarking L2 norm: ";

   timer.reset();

   timer.start();

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

     resultHost = hostVector.lpNorm( 2.0 );

   timer.stop();

   timeHost = timer.getTime();

   bandwidth = datasetSize / timer.getTime();

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

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

    

   cout << "Benchmarking L2 norm on GPU: " << endl;

   timer.reset();

   timer.start();

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

      resultDevice = deviceVector.lpNorm( 2.0 );



   timer.stop();

   timeDevice = timer.getTime();

   bandwidth = datasetSize / timer.getTime();

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

   cout << "  GPU: 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 ..." << endl;

   cout << "Benchmarking prefix-sum:" << endl;

   timer.reset();

   timer.start();

   hostVector.computePrefixSum();

   timer.stop();

   timeHost = timer.getTime();

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

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

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

   

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

   timer.reset();

   timer.start();

   deviceVector.computePrefixSum();

   timer.stop();

   timeDevice = timer.getTime();

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

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

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

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



   HostVector auxHostVector;