128 lines
2.8 KiB
C++
128 lines
2.8 KiB
C++
#include <cstdio>
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#include <cstdlib>
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#include <algorithm>
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#include <iostream>
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#include <cassert>
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#include <iomanip>
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#include "../timing.h"
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#include "../ispc_malloc.h"
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#include "bitonicSort_ispc.h"
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extern void bitonicSort_serial (
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int dstKey[],
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int dstVal[],
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int srcKey[],
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int srcVal[],
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const int batchSize,
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const int arrayLength,
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const int dir);
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/* progress bar by Ross Hemsley;
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* http://www.rosshemsley.co.uk/2011/02/creating-a-progress-bar-in-c-or-any-other-console-app/ */
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static inline void progressbar (unsigned int x, unsigned int n, unsigned int w = 50)
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{
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if (n < 100)
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{
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x *= 100/n;
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n = 100;
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}
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if ((x != n) && (x % (n/100) != 0)) return;
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using namespace std;
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float ratio = x/(float)n;
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int c = ratio * w;
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cout << setw(3) << (int)(ratio*100) << "% [";
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for (int x=0; x<c; x++) cout << "=";
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for (int x=c; x<w; x++) cout << " ";
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cout << "]\r" << flush;
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}
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int main (int argc, char *argv[])
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{
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int i, j, n = argc == 1 ? 1000000 : atoi(argv[1]), m = n < 100 ? 1 : 50, l = n < 100 ? n : RAND_MAX;
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double tISPC1 = 0.0, tISPC2 = 0.0, tSerial = 0.0;
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unsigned int *code = new unsigned int [n];
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unsigned int *code_orig = new unsigned int [n];
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int *order = new int [n];
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for (j = 0; j < n; j ++) code_orig[j] = rand() % l;
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ispcSetMallocHeapLimit(1024*1024*1024);
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srand (0);
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#ifndef _CUDA_
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for (i = 0; i < m; i ++)
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{
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ispcMemcpy(code, code_orig, n*sizeof(unsigned int));
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reset_and_start_timer();
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sort_ispc (n, code, order, 1);
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tISPC1 += get_elapsed_msec();
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if (argc != 3)
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progressbar (i, m);
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}
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printf("[sort ispc]:\t[%.3f] msec [%.3f Mpair/s]\n", tISPC1, 1.0e-3*n*m/tISPC1);
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#endif
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srand (0);
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const int ntask = 13*8;
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for (i = 0; i < m; i ++)
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{
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ispcMemcpy(code, code_orig, n*sizeof(unsigned int));
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reset_and_start_timer();
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sort_ispc (n, code, order, ntask);
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tISPC2 += get_elapsed_msec();
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if (argc != 3)
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progressbar (i, m);
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}
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printf("[sort ispc + tasks]:\t[%.3f] msec [%.3f Mpair/s]\n", tISPC2, 1.0e-3*n*m/tISPC2);
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unsigned int *code1 = new unsigned int [n];
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for (int i = 0; i < n; i++)
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code1[i] = code[i];
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std::sort(code1, code1+n);
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for (int i = 0; i < n; i++)
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assert(code1[i] == code[i]);
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srand (0);
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for (i = 0; i < m; i ++)
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{
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ispcMemcpy(code, code_orig, n*sizeof(unsigned int));
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reset_and_start_timer();
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sort_serial (n, code, order);
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tSerial += get_elapsed_msec();
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if (argc != 3)
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progressbar (i, m);
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}
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printf("[sort serial]:\t\t[%.3f] msec [%.3f Mpair/s]\n", tSerial, 1.0e-3*n*m/tSerial);
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#ifndef _CUDA_
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printf("\t\t\t\t(%.2fx speedup from ISPC, %.2fx speedup from ISPC + tasks)\n", tSerial/tISPC1, tSerial/tISPC2);
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#else
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printf("\t\t\t\t(%.2fx speedup from ISPC + tasks)\n", tSerial/tISPC2);
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#endif
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delete code;
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delete code_orig;
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delete order;
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return 0;
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}
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