| 1 | /*BHEADER**********************************************************************
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| 2 | * Copyright (c) 2008, Lawrence Livermore National Security, LLC.
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| 3 | * Produced at the Lawrence Livermore National Laboratory.
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| 4 | * This file is part of HYPRE. See file COPYRIGHT for details.
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| 5 | *
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| 6 | * HYPRE is free software; you can redistribute it and/or modify it under the
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| 7 | * terms of the GNU Lesser General Public License (as published by the Free
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| 8 | * Software Foundation) version 2.1 dated February 1999.
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| 9 | *
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| 10 | * $Revision: 2.4 $
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| 11 | ***********************************************************************EHEADER*/
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| 12 |
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| 13 |
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| 14 | #ifndef hypre_THREADING_HEADER
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| 15 | #define hypre_THREADING_HEADER
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| 16 |
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| 17 | #if defined(HYPRE_USING_OPENMP) || defined (HYPRE_USING_PGCC_SMP)
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| 18 |
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| 19 | int hypre_NumThreads( void );
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| 20 |
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| 21 | #else
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| 22 |
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| 23 | #define hypre_NumThreads() 1
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| 24 |
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| 25 | #endif
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| 26 |
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| 27 |
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| 28 | /*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
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| 29 | /* The pthreads stuff needs to be reworked */
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| 30 |
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| 31 | #ifdef HYPRE_USE_PTHREADS
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| 32 |
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| 33 | #ifndef MAX_QUEUE
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| 34 | #define MAX_QUEUE 256
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| 35 | #endif
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| 36 |
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| 37 | #include <pthread.h>
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| 38 |
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| 39 | /* hypre_work_proc_t typedef'd to be a pointer to a function with a void*
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| 40 | argument and a void return type */
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| 41 | typedef void (*hypre_work_proc_t)(void *);
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| 42 |
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| 43 | typedef struct hypre_workqueue_struct {
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| 44 | pthread_mutex_t lock;
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| 45 | pthread_cond_t work_wait;
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| 46 | pthread_cond_t finish_wait;
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| 47 | hypre_work_proc_t worker_proc_queue[MAX_QUEUE];
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| 48 | int n_working;
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| 49 | int n_waiting;
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| 50 | int n_queue;
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| 51 | int inp;
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| 52 | int outp;
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| 53 | void *argqueue[MAX_QUEUE];
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| 54 | } *hypre_workqueue_t;
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| 55 |
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| 56 | void hypre_work_put( hypre_work_proc_t funcptr, void *argptr );
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| 57 | void hypre_work_wait( void );
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| 58 | int HYPRE_InitPthreads( int num_threads );
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| 59 | void HYPRE_DestroyPthreads( void );
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| 60 | void hypre_pthread_worker( int threadid );
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| 61 | int ifetchadd( int *w, pthread_mutex_t *mutex_fetchadd );
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| 62 | int hypre_fetch_and_add( int *w );
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| 63 | void hypre_barrier(pthread_mutex_t *mpi_mtx, int unthreaded);
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| 64 | int hypre_GetThreadID( void );
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| 65 |
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| 66 | pthread_t initial_thread;
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| 67 | pthread_t hypre_thread[hypre_MAX_THREADS];
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| 68 | pthread_mutex_t hypre_mutex_boxloops;
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| 69 | pthread_mutex_t talloc_mtx;
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| 70 | pthread_mutex_t worker_mtx;
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| 71 | hypre_workqueue_t hypre_qptr;
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| 72 | pthread_mutex_t mpi_mtx;
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| 73 | pthread_mutex_t time_mtx;
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| 74 | volatile int hypre_thread_release;
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| 75 |
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| 76 | #ifdef HYPRE_THREAD_GLOBALS
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| 77 | int hypre_NumThreads = 4;
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| 78 | #else
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| 79 | extern int hypre_NumThreads;
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| 80 | #endif
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| 81 |
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| 82 | #endif
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| 83 | /*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
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| 84 |
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| 85 | #endif
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