MFEM: tic_toc.hpp Source File

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00001 // Copyright (c) 2010, Lawrence Livermore National Security, LLC. Produced at
00002 // the Lawrence Livermore National Laboratory. LLNL-CODE-443211. All Rights
00003 // reserved. See file COPYRIGHT for details.
00004 //
00005 // This file is part of the MFEM library. For more information and source code
00006 // availability see http://mfem.googlecode.com.
00007 //
00008 // MFEM is free software; you can redistribute it and/or modify it under the
00009 // terms of the GNU Lesser General Public License (as published by the Free
00010 // Software Foundation) version 2.1 dated February 1999.
00011 
00012 #ifndef MFEM_TIC_TOC
00013 #define MFEM_TIC_TOC
00014 
00015 #include <sys/times.h>
00016 
00018 class StopWatch
00019 {
00020 private:
00021    clock_t real_time, user_time, syst_time;
00022    clock_t start_rtime, start_utime, start_stime;
00023    long my_CLK_TCK;
00024    short Running;
00025    void Current(clock_t *, clock_t *, clock_t *);
00026 public:
00027    StopWatch();  // determines my_CLK_TCK
00028    void Clear();
00029    void Start();
00030    void Stop();
00031    double RealTime();
00032    double UserTime();
00033    double SystTime();
00034 };
00035 
00036 
00037 extern StopWatch tic_toc;
00038 
00040 extern void tic();
00041 
00043 extern double toc();
00044 
00045 #endif