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main.cpp
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/*
//@HEADER
// ************************************************************************
//
// Kokkos v. 2.0
// Copyright (2014) Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. 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.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "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 SANDIA CORPORATION OR THE
// 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.
//
// Questions? Contact H. Carter Edwards (hcedwar@sandia.gov)
//
// ************************************************************************
//@HEADER
*/
#include<Kokkos_Core.hpp>
#include<impl/Kokkos_Timer.hpp>
#include<gather.hpp>
int main(int argc, char* argv[]) {
Kokkos::initialize(argc,argv);
if(argc<8) {
printf("Arguments: S N K D\n");
printf(" S: Scalar Type Size (1==float, 2==double, 4=complex<double>)\n");
printf(" N: Number of entities\n");
printf(" K: Number of things to gather per entity\n");
printf(" D: Max distance of gathered things of an entity\n");
printf(" R: how often to loop through the K dimension with each team\n");
printf(" U: how many independent flops to do per load\n");
printf(" F: how many times to repeat the U unrolled operations before reading next element\n");
printf("Example Input GPU:\n");
printf(" Bandwidth Bound : 2 10000000 1 1 10 1 1\n");
printf(" Cache Bound : 2 10000000 64 1 10 1 1\n");
printf(" Cache Gather : 2 10000000 64 256 10 1 1\n");
printf(" Global Gather : 2 100000000 16 100000000 1 1 1\n");
printf(" Typical MD : 2 100000 32 512 1000 8 2\n");
Kokkos::finalize();
return 0;
}
int S = atoi(argv[1]);
int N = atoi(argv[2]);
int K = atoi(argv[3]);
int D = atoi(argv[4]);
int R = atoi(argv[5]);
int U = atoi(argv[6]);
int F = atoi(argv[7]);
if( (S!=1) && (S!=2) && (S!=4)) {printf("S must be one of 1,2,4\n"); return 0;}
if( N<D ) {printf("N must be larger or equal to D\n"); return 0; }
if(S==1) {
run_gather_test<float>(N,K,D,R,U,F);
}
if(S==2) {
run_gather_test<double>(N,K,D,R,U,F);
}
if(S==4) {
run_gather_test<Kokkos::complex<double> >(N,K,D,R,U,F);
}
Kokkos::finalize();
}

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