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playground [2009/06/05 15:00]
jjp 		playground [2015/08/23 13:59] (current)
Line 1: Line 1:
-'' double time = 0.0;+<code>#include <cstring> 
 + 
 +#include <stdio.h> 
 + 
 +#include <stdlib.h> 
 + 
 +#include "cutil.h" 
 + 
 +#include "cudpp/cudpp.h" 
 + 
 +void cudppSort(unsigned int* data, unsigned int size, double* time, double* transferTime, bool merge) 
 + 
 +{ 
 + 
 + unsigned int timer, transferTimer; 
 + 
 + cutCreateTimer(&timer); 
 + cutCreateTimer(&transferTimer); 
 + 
 + cutStartTimer(transferTimer); 
 + 
 + 
 + unsigned int* ddata1 = 0; 
 + 
 + unsigned int* ddata2 = 0; 
 + 
 + size_t memSize = size * sizeof(unsigned int); 
 + 
 + 
 + 
 + cudaMalloc((void**) &ddata1, memSize); 
 + 
 + cudaMalloc((void**) &ddata2, memSize); 
 + 
 + cudaMemcpy(ddata1, data, memSize, cudaMemcpyHostToDevice); 
 + 
 + cutStopTimer(transferTimer); 
 + 
 + cudaThreadSynchronize(); 
 + cutStartTimer(timer); 
 + 
 + 
 + 
 + CUDPPConfiguration config; 
 + 
 + 
 + 
 + if (merge) 
 + 
 + config.algorithm = CUDPP_SORT_RADIX; 
 + 
 + else 
 + 
 + config.algorithm = CUDPP_SORT_RADIX_GLOBAL; 
 + 
 + 
 + 
 + config.datatype = CUDPP_UINT; 
 + 
 + 
 + 
 + CUDPPHandle sortplan = 0; 
 + 
 + CUDPPResult result = cudppPlan(&sortplan, config, size, 1, 0);   
 + 
 + 
 + 
 + cudppSort(sortplan, ddata2, ddata1, size); 
 + 
 + cudaThreadSynchronize(); 
 + 
 + cutStopTimer(timer); 
 + 
 + cutStartTimer(transferTimer); 
 + 
 + 
 + 
 + cudaMemcpy(data, ddata2, memSize, cudaMemcpyDeviceToHost);   
 + cudaFree(ddata1); 
 + 
 + cudaFree(ddata2); 
 + result = cudppDestroyPlan(sortplan); 
 + 
 + cutStopTimer(transferTimer); 
 + 
 + *time = cutGetTimerValue(timer); 
 + *transferTime = cutGetTimerValue(transferTimer); 
 + 
 + 
 + cutDeleteTimer(timer); 
 + 
 + cutDeleteTimer(transferTimer); 
 + 
 +} 
 + 
 + 
 +int main(int argc, char *argv[])  
 + 
 +{ 
 +  
 + int size = 10000000; 
 + float* data = new float[size]; 
 + for (int i = 0; i < size; i++) 
 + data[i] = float(rand()); 
 + 
 + double time = 0.0;
  double transferTime = 0.0;  double transferTime = 0.0;
  printf("\nCUDPP Radix with sync..\n");  printf("\nCUDPP Radix with sync..\n");
  for (int i = 0; i < 5; i++)  for (int i = 0; i < 5; i++)
  {  {
- cudppSort(data, size, &time, &transferTime, false);+ cudppSort(data, size, &time, &transferTime);
  printf("Time: %f, transfer time: %f\n", time, transferTime);  printf("Time: %f, transfer time: %f\n", time, transferTime);
  //time = 0.0; transferTime = 0.0;  //time = 0.0; transferTime = 0.0;
  }  }
  
- printf("\nCUDPP Radix-Merge with sync..\n"); + delete [] data; 
- for (int i = 0; i < 5; i++) + 
- { + return 0;  
- cudppSort(data, size, &time, &transferTime, true); + 
- printf("Time: %f, transfer time: %f\n", time, transferTime); +}</code>
- }''+
playground.1244206824.txt.gz · Last modified: 2015/08/23 14:03 (external edit)

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