00001 #ifndef MPI_HELPER_CPP 00002 #define MPI_HELPER_CPP 00003 00004 //-------------------------------------------------------------------- 00005 // 00006 // This file is part of PEACE. 00007 // 00008 // PEACE is free software: you can redistribute it and/or modify it 00009 // under the terms of the GNU General Public License as published by 00010 // the Free Software Foundation, either version 3 of the License, or 00011 // (at your option) any later version. 00012 // 00013 // PEACE is distributed in the hope that it will be useful, but 00014 // WITHOUT ANY WARRANTY; without even the implied warranty of 00015 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00016 // General Public License for more details. 00017 // 00018 // You should have received a copy of the GNU General Public License 00019 // along with PEACE. If not, see <http://www.gnu.org/licenses/>. 00020 // 00021 // Miami University makes no representations or warranties about the 00022 // suitability of the software, either express or implied, including 00023 // but not limited to the implied warranties of merchantability, 00024 // fitness for a particular purpose, or non-infringement. Miami 00025 // University shall not be liable for any damages suffered by licensee 00026 // as a result of using, result of using, modifying or distributing 00027 // this software or its derivatives. 00028 // 00029 // By using or copying this Software, Licensee agrees to abide by the 00030 // intellectual property laws, and all other applicable laws of the 00031 // U.S., and the terms of GNU General Public License (version 3). 00032 // 00033 // Authors: Dhananjai M. Rao raodm@muohio.edu 00034 // 00035 //--------------------------------------------------------------------- 00036 00037 #include "MPIHelper.h" 00038 #include <cstring> 00039 00040 #ifndef HAVE_LIBMPI 00041 00042 00043 #ifndef _WINDOWS 00044 // A simple implementation for MPI_WTIME on linux 00045 #include <sys/time.h> 00046 double MPI_WTIME() { 00047 struct timeval tv; 00048 gettimeofday(&tv, NULL); 00049 return tv.tv_sec + (tv.tv_usec / 1e6); 00050 } 00051 00052 #else 00053 // A simple implementation for MPI_WTIME on Windows 00054 #include <windows.h> 00055 00056 double MPI_WTIME() { 00057 FILETIME st; 00058 GetSystemTimeAsFileTime(&st); 00059 long long time = st.dwHighDateTime; 00060 time <<= 32; 00061 time |= st.dwLowDateTime; 00062 return (double) time; 00063 } 00064 00065 00066 #endif 00067 00068 #endif 00069 00070 #endif
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