ergo
|
00001 /* Ergo, version 3.2, a program for linear scaling electronic structure 00002 * calculations. 00003 * Copyright (C) 2012 Elias Rudberg, Emanuel H. Rubensson, and Pawel Salek. 00004 * 00005 * This program is free software: you can redistribute it and/or modify 00006 * it under the terms of the GNU General Public License as published by 00007 * the Free Software Foundation, either version 3 of the License, or 00008 * (at your option) any later version. 00009 * 00010 * This program is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 * GNU General Public License for more details. 00014 * 00015 * You should have received a copy of the GNU General Public License 00016 * along with this program. If not, see <http://www.gnu.org/licenses/>. 00017 * 00018 * Primary academic reference: 00019 * KohnâSham Density Functional Theory Electronic Structure Calculations 00020 * with Linearly Scaling Computational Time and Memory Usage, 00021 * Elias Rudberg, Emanuel H. Rubensson, and Pawel Salek, 00022 * J. Chem. Theory Comput. 7, 340 (2011), 00023 * <http://dx.doi.org/10.1021/ct100611z> 00024 * 00025 * For further information about Ergo, see <http://www.ergoscf.org>. 00026 */ 00027 00028 #if !defined(_ERGO_BARRIER_H_) 00029 #define _ERGO_BARRIER_H_ 00030 00034 #if !defined(HAS_PTHREAD_BARRIER) 00035 00036 #ifdef __cplusplus 00037 #define EXTERN_C extern "C" 00038 #else 00039 #define EXTERN_C extern 00040 #endif 00041 00042 #if !defined(PTHREAD_BARRIER_SERIAL_THREAD) 00043 #define PTHREAD_BARRIER_SERIAL_THREAD -1 00044 #endif 00045 00046 typedef struct ergo_barrier { 00047 pthread_mutex_t barrierMutex; 00048 pthread_cond_t conditionVar; 00049 int initCount; 00050 int currCount; 00051 int cycle; 00052 } ergo_barrier_t; 00053 00054 EXTERN_C int ergo_barrier_init(ergo_barrier_t *__restrict barrier, 00055 const void * attr_ignored, 00056 unsigned int count); 00057 00058 EXTERN_C int ergo_barrier_destroy (ergo_barrier_t *__barrier); 00059 EXTERN_C int ergo_barrier_wait (ergo_barrier_t *__barrier); 00060 00061 #else /* HAS_PTHREAD_BARRIER */ 00062 #define ergo_barrier_t pthread_barrier_t 00063 #define ergo_barrier_init pthread_barrier_init 00064 #define ergo_barrier_destroy pthread_barrier_destroy 00065 #define ergo_barrier_wait pthread_barrier_wait 00066 #endif /* HAS_PTHREAD_BARRIER */ 00067 00068 #endif /* _ERGO_BARRIER_H_ */