Package org.jblas.benchmark

Source Code of org.jblas.benchmark.ATLASDoubleMultiplicationBenchmark

// --- BEGIN LICENSE BLOCK ---
/*
* Copyright (c) 2009, Mikio L. Braun
* 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 the Technische Universität Berlin 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 AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// --- END LICENSE BLOCK ---

package org.jblas.benchmark;

import org.jblas.DoubleMatrix;
import static org.jblas.DoubleMatrix.*;

/**
*
*/
class ATLASDoubleMultiplicationBenchmark implements Benchmark {

    public String getName() {
        return "ATLAS matrix multiplication, double precision";
    }

    public BenchmarkResult run(int size, double seconds) {
        int counter = 0;
        long ops = 0;

        DoubleMatrix A = randn(size, size);
        DoubleMatrix B = randn(size, size);
        DoubleMatrix C = randn(size, size);

        Timer t = new Timer();
        t.start();
        while (!t.ranFor(seconds)) {
            A.mmuli(B, C);
            counter++;
            ops += 2L * size * size * size;
        }
        t.stop();

        return new BenchmarkResult(ops, t.elapsedSeconds(), counter);
    }
}
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