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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<bench.hpp>
int main(int argc, char* argv[]) {
Kokkos::initialize();
if(argc<10) {
printf("Arguments: N K R D U F T S\n");
printf(" P: Precision (1==float, 2==double)\n");
printf(" N,K: dimensions of the 2D array to allocate\n");
printf(" R: how often to loop through the K dimension with each team\n");
printf(" D: distance between loaded elements (stride)\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(" T: team size\n");
printf(" S: shared memory per team (used to control occupancy on GPUs)\n");
printf("Example Input GPU:\n");
printf(" Bandwidth Bound : 2 100000 1024 1 1 1 1 256 6000\n");
printf(" Cache Bound : 2 100000 1024 64 1 1 1 512 20000\n");
printf(" Compute Bound : 2 100000 1024 1 1 8 64 256 6000\n");
printf(" Load Slots Used : 2 20000 256 32 16 1 1 256 6000\n");
printf(" Inefficient Load: 2 20000 256 32 2 1 1 256 20000\n");
Kokkos::finalize();
return 0;
}
int P = atoi(argv[1]);
int N = atoi(argv[2]);
int K = atoi(argv[3]);
int R = atoi(argv[4]);
int D = atoi(argv[5]);
int U = atoi(argv[6]);
int F = atoi(argv[7]);
int T = atoi(argv[8]);
int S = atoi(argv[9]);
if(U>8) {printf("U must be 1-8\n"); return 0;}
if( (D!=1) && (D!=2) && (D!=4) && (D!=8) && (D!=16) && (D!=32)) {printf("D must be one of 1,2,4,8,16,32\n"); return 0;}
if( (P!=1) && (P!=2) ) {printf("P must be one of 1,2\n"); return 0;}
if(P==1) {
run_stride_unroll<float>(N,K,R,D,U,F,T,S);
}
if(P==2) {
run_stride_unroll<double>(N,K,R,D,U,F,T,S);
}
Kokkos::finalize();
}

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