?? random_bench.cpp
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// This is -*- C++ -*-// $Id: random_bench.cpp,v 1.11 1999/07/09 18:43:27 trow Exp $/* random_bench.cpp * * Copyright (C) 1998 EMC Capital Management, Inc. * * Developed by Jon Trowbridge <trow@emccta.com>. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA * 02111-1307, USA. */#include <config.h>#include <stdlib.h>#include <time.h>#include <iostream>#include "Random.h"using namespace std;int main(){ const int N = 50000000; const size_t block=100000; unsigned x=0; time_t t1, t2, t3, t4, t5, t6;// double b[block];// unsigned bb[block]; int bi[block]; Random rnd; rnd.seed(10); time(&t5); for(size_t i=0; i<N/block; ++i) rnd.random_integer_bulk(0,100, bi, block); time(&t6); cout << " Normal block: " << t6-t5 << endl; time(&t3); for(size_t i=0; i<N/block; ++i) for(size_t j=0; j<block; ++j) bi[j] = rnd.random_integer(0,100); time(&t4); cout << " Normal loop: " << t4-t3 << endl; time(&t1); for(size_t i=0; i<N/block; ++i) for(size_t j=0; j<block; ++j) bi[j] = 0; time(&t2); cout << " Control loop: " << t2-t1 << endl; return 0;}// $Id: random_bench.cpp,v 1.11 1999/07/09 18:43:27 trow Exp $
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