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/*
* This file is a part of TiledArray.
* Copyright (C) 2013 Virginia Tech
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <TiledArray/version.h>
#include <tiledarray.h>
#include <iostream>
int main(int argc, char** argv) {
int rc = 0;
try {
// Initialize runtime
TiledArray::World& world = TiledArray::initialize(argc, argv);
// Get command line arguments
if (argc < 2) {
std::cout << "Usage: " << argv[0]
<< " matrix_size block_size [repetitions]\n";
return 0;
}
const long matrix_size = atol(argv[1]);
const long block_size = atol(argv[2]);
if (matrix_size <= 0) {
std::cerr << "Error: matrix size must be greater than zero.\n";
return 1;
}
if (block_size <= 0) {
std::cerr << "Error: block size must be greater than zero.\n";
return 1;
}
if ((matrix_size % block_size) != 0ul) {
std::cerr
<< "Error: matrix size must be evenly divisible by block size.\n";
return 1;
}
const long repeat = (argc >= 4 ? atol(argv[3]) : 5);
if (repeat <= 0) {
std::cerr << "Error: number of repetitions must be greater than zero.\n";
return 1;
}
const long num_blocks = matrix_size / block_size;
const long block_count = num_blocks * num_blocks;
const double flop =
2.0 * double(matrix_size * matrix_size * matrix_size) / 1.0e9;
// Construct TiledRange
std::vector<unsigned long> blocking[3];
world.srand(42);
unsigned long min = std::numeric_limits<unsigned long>::max(), max = 0;
for (long n = 0l; n < 3l; ++n) {
blocking[n].resize(num_blocks + 1, 1);
blocking[n][0] = 0;
for (long i = num_blocks; i < matrix_size; ++i)
++(blocking[n][(world.rand() % num_blocks) + 1]);
for (long i = 1l; i <= num_blocks; ++i) {
min = std::min(blocking[n][i], min);
max = std::max(blocking[n][i], max);
blocking[n][i] += blocking[n][i - 1l];
}
}
if (world.rank() == 0)
std::cout << "TiledArray: dense-nonuniform matrix multiply test..."
<< "\nGit HASH: " << TILEDARRAY_REVISION
<< "\nNumber of nodes = " << world.size()
<< "\nMatrix size = " << matrix_size << "x"
<< matrix_size << "\nAverage block size = " << block_size
<< "x" << block_size << "\nMaximum block size = " << max
<< "\nMinimum block size = " << min
<< "\nMemory per matrix = "
<< double(matrix_size * matrix_size * sizeof(double)) / 1.0e9
<< " GB\nNumber of blocks = " << block_count
<< "\nAverage blocks/node = "
<< double(block_count) / double(world.size()) << "\n";
std::vector<TiledArray::TiledRange1> blockingA, blockingB;
blockingA.reserve(2);
blockingA.push_back(
TiledArray::TiledRange1(blocking[0].begin(), blocking[0].end()));
blockingA.push_back(
TiledArray::TiledRange1(blocking[1].begin(), blocking[1].end()));
blockingB.reserve(2);
blockingB.push_back(
TiledArray::TiledRange1(blocking[1].begin(), blocking[1].end()));
blockingB.push_back(
TiledArray::TiledRange1(blocking[2].begin(), blocking[2].end()));
TiledArray::TiledRange trangeA(blockingA.begin(), blockingA.end()),
trangeB(blockingB.begin(), blockingB.end());
// Construct and initialize arrays
TiledArray::TArrayD a(world, trangeA);
TiledArray::TArrayD b(world, trangeB);
TiledArray::TArrayD c;
a.fill(1.0);
b.fill(1.0);
// Start clock
world.gop.fence();
if (world.rank() == 0)
std::cout << "Starting iterations: "
<< "\n";
double total_time = 0.0;
// Do matrix multiplication
for (int i = 0; i < repeat; ++i) {
const double start = madness::wall_time();
c("m,n") = a("m,k") * b("k,n");
// world.gop.fence();
const double time = madness::wall_time() - start;
total_time += time;
if (world.rank() == 0)
std::cout << "Iteration " << i + 1 << " time=" << time
<< " GFLOPS=" << flop / time << "\n";
}
// Print results
if (world.rank() == 0)
std::cout << "Average wall time = " << total_time / double(repeat)
<< " sec\nAverage GFLOPS = "
<< double(repeat) * flop / total_time << "\n";
TiledArray::finalize();
} catch (TiledArray::Exception& e) {
std::cerr << "!! TiledArray exception: " << e.what() << "\n";
rc = 1;
} catch (madness::MadnessException& e) {
std::cerr << "!! MADNESS exception: " << e.what() << "\n";
rc = 1;
} catch (SafeMPI::Exception& e) {
std::cerr << "!! SafeMPI exception: " << e.what() << "\n";
rc = 1;
} catch (std::exception& e) {
std::cerr << "!! std exception: " << e.what() << "\n";
rc = 1;
} catch (...) {
std::cerr << "!! exception: unknown exception\n";
rc = 1;
}
return rc;
}
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