00001 // @HEADER 00002 // *********************************************************************** 00003 // 00004 // Teuchos: Common Tools Package 00005 // Copyright (2004) Sandia Corporation 00006 // 00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive 00008 // license for use of this work by or on behalf of the U.S. Government. 00009 // 00010 // This library is free software; you can redistribute it and/or modify 00011 // it under the terms of the GNU Lesser General Public License as 00012 // published by the Free Software Foundation; either version 2.1 of the 00013 // License, or (at your option) any later version. 00014 // 00015 // This library is distributed in the hope that it will be useful, but 00016 // WITHOUT ANY WARRANTY; without even the implied warranty of 00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00018 // Lesser General Public License for more details. 00019 // 00020 // You should have received a copy of the GNU Lesser General Public 00021 // License along with this library; if not, write to the Free Software 00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00023 // USA 00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov) 00025 // 00026 // *********************************************************************** 00027 // @HEADER 00028 00029 // Kris 00030 // 07.08.03 -- Move into Teuchos package/namespace 00031 00032 #ifndef _TEUCHOS_TIME_HPP_ 00033 #define _TEUCHOS_TIME_HPP_ 00034 00039 #include "Teuchos_ConfigDefs.hpp" 00040 00041 #include <ctime> 00042 #ifdef HAVE_MPI 00043 #include "mpi.h" 00044 #else 00045 #if ICL || defined(_WIN32) 00046 #include <time.h> 00047 #else 00048 #include <sys/time.h> 00049 #ifndef MINGW 00050 #include <sys/resource.h> 00051 #endif 00052 #endif 00053 #endif 00054 00055 namespace Teuchos 00056 { 00057 00067 /* ADDITIONAL COMMENTS: 00068 * Initial version by Mike Heroux and Kris Kampshoff. 00069 * Modified as follows by Kevin Long, 9/29/03: 00070 * <ul> 00071 * <li> There is no need to define explicit copy ctor and dtor for this class. 00072 * <li> The wallTime() method returns the same value for every instance of this class, so 00073 * it would be best to make it a static method. 00074 * <li> Removed the communicator data member. Cross-processor comparisons of timings 00075 * can be done by the TimeMonitor. 00076 * </ul> 00077 */ 00078 00079 class Time 00080 { 00081 00082 public: 00084 Time(const std::string& name, bool start = false); 00085 00087 static double wallTime(); 00088 00090 void start(bool reset = false); 00091 00093 double stop(); 00094 00097 double totalElapsedTime(bool readCurrentTime = false) const; 00098 00101 void reset() {totalTime_ = 0; numCalls_ = 0;} 00102 00108 bool isRunning() const {return isRunning_;} 00109 00111 const std::string& name() const {return name_;} 00112 00114 void incrementNumCalls() {numCalls_++;} 00115 00117 int numCalls() const {return numCalls_;} 00118 00119 private: 00120 double startTime_; 00121 00122 double totalTime_; 00123 00124 bool isRunning_; 00125 00126 std::string name_; 00127 00128 int numCalls_; 00129 }; 00130 00131 } // namespace Teuchos 00132 00133 #endif // TEUCHOS_TIME_HPP_