001 /* 002 * Copyright (C) 2008-2010 by Holger Arndt 003 * 004 * This file is part of the Universal Java Matrix Package (UJMP). 005 * See the NOTICE file distributed with this work for additional 006 * information regarding copyright ownership and licensing. 007 * 008 * UJMP is free software; you can redistribute it and/or modify 009 * it under the terms of the GNU Lesser General Public License as 010 * published by the Free Software Foundation; either version 2 011 * of the License, or (at your option) any later version. 012 * 013 * UJMP is distributed in the hope that it will be useful, 014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 016 * GNU Lesser General Public License for more details. 017 * 018 * You should have received a copy of the GNU Lesser General Public 019 * License along with UJMP; if not, write to the 020 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 021 * Boston, MA 02110-1301 USA 022 */ 023 024 package org.ujmp.core.benchmark; 025 026 import org.ujmp.core.Coordinates; 027 import org.ujmp.core.Matrix; 028 import org.ujmp.core.doublematrix.DoubleMatrix2D; 029 import org.ujmp.core.matrix.DenseMatrix; 030 import org.ujmp.core.util.SerializationUtil; 031 032 public class InvBenchmarkTask extends AbstractBenchmarkTask { 033 034 public InvBenchmarkTask(long benchmarkSeed, Class<? extends DoubleMatrix2D> matrixClass, 035 BenchmarkConfig config) { 036 super(benchmarkSeed, matrixClass, config.getInvSizes(), config); 037 } 038 039 @Override 040 public BenchmarkResult task(Class<? extends Matrix> matrixClass, long benchmarkSeed, int run, 041 long[] size) { 042 final long t0, t1, m0, m1; 043 final DoubleMatrix2D m; 044 Matrix r; 045 try { 046 m = BenchmarkUtil.createMatrix(matrixClass, size); 047 if (!m.getClass().getName().startsWith("org.ujmp.core") 048 && m.getClass().getDeclaredMethod("inv") == null) { 049 System.out.print("-"); 050 System.out.flush(); 051 return BenchmarkResult.NOTAVAILABLE; 052 } 053 BenchmarkUtil.rand(benchmarkSeed, run, 0, m); 054 BenchmarkUtil.purgeMemory(getConfig()); 055 m0 = Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory(); 056 t0 = System.nanoTime(); 057 r = m.inv(); 058 t1 = System.nanoTime(); 059 m1 = Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory(); 060 if (r == null) { 061 System.out.print("e"); 062 System.out.flush(); 063 return BenchmarkResult.ERROR; 064 } 065 Matrix result = m.mtimes(r); 066 double diff = BenchmarkUtil.difference(result, DenseMatrix.factory.eye(m.getSize())); 067 result = null; 068 long mem = m1 - m0 - SerializationUtil.sizeOf(r); 069 mem = mem > 0 ? mem : 0; 070 return new BenchmarkResult((t1 - t0) / 1000000.0, diff, mem); 071 } catch (Throwable e) { 072 System.out.print("e"); 073 System.out.flush(); 074 return BenchmarkResult.ERROR; 075 } 076 } 077 078 @Override 079 public String getTaskName() { 080 return "inv"; 081 } 082 083 }