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main.cc
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main.cc
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/* Copyright (c) 1993-2015, NVIDIA CORPORATION. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of NVIDIA CORPORATION nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <cuda_runtime.h>
#include "particle/v3.h"
#include "propagate/propagate.h"
int main(int argc, char ** argv)
{
int n = 1000000;
int seed = 0;
if(argc > 1) { n = atoi(argv[1]);} // Number of particles
if(argc > 2) { seed = atoi(argv[2]); } // Random seed
v3 totalDistance = propagate(n, seed);
float avgX = totalDistance.x /(float)n;
float avgY = totalDistance.y /(float)n;
float avgZ = totalDistance.z /(float)n;
float avgNorm = sqrt(avgX*avgX + avgY*avgY + avgZ*avgZ);
printf( "Moved %d particles 100 steps. Average distance traveled is |(%f, %f, %f)| = %f\n",
n, avgX, avgY, avgZ, avgNorm);
return 0;
}