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Top Forums Programming How can I parallize using pthread Post 302275827 by otheus on Monday 12th of January 2009 09:28:18 AM
Old 01-12-2009
I don't think pthreads() will help you here regardless, especially if Expansion is relatively quick. It also looks as if each iteration of the loop depends on the completion of the previous iteration. So it probably makes more sense to parallelize an outer loop (the one you have not shown us).
 

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pthread.h(3HEAD)                                                      Headers                                                     pthread.h(3HEAD)

NAME
pthread.h, pthread - threads SYNOPSIS
#include <pthread.h> DESCRIPTION
The <pthread.h> header defines the following symbols: PTHREAD_BARRIER_SERIAL_THREAD PTHREAD_CANCEL_ASYNCHRONOUS PTHREAD_CANCEL_ENABLE PTHREAD_CANCEL_DEFERRED PTHREAD_CANCEL_DISABLE PTHREAD_CANCELED PTHREAD_COND_INITIALIZER PTHREAD_CREATE_DETACHED PTHREAD_CREATE_JOINABLE PTHREAD_EXPLICIT_SCHED PTHREAD_INHERIT_SCHED PTHREAD_MUTEX_DEFAULT PTHREAD_MUTEX_ERRORCHECK PTHREAD_MUTEX_INITIALIZER PTHREAD_MUTEX_NORMAL PTHREAD_MUTEX_RECURSIVE PTHREAD_ONCE_INIT PTHREAD_PRIO_INHERIT PTHREAD_PRIO_NONE PTHREAD_PRIO_PROTECT PTHREAD_PROCESS_SHARED PTHREAD_PROCESS_PRIVATE PTHREAD_SCOPE_PROCESS PTHREAD_SCOPE_SYSTEM The types listed below are defined as described in <sys/types.h>. See types.h(3HEAD). pthread_attr_t pthread_barrier_t pthread_barrierattr_t pthread_cond_t pthread_condattr_t pthread_key_t pthread_mutex_t pthread_mutexattr_t pthread_once_t pthread_rwlock_t pthread_rwlockattr_t pthread_spinlock_t pthread_t ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ SEE ALSO
sched.h(3HEAD), time.h(3HEAD), types.h(3HEAD), pthread_attr_getguardsize(3C), pthread_attr_init(3C), pthread_attr_setscope(3C), pthread_cancel(3C), pthread_cleanup_pop(3C), pthread_cond_init(3C), pthread_cond_signal(3C), pthread_cond_wait(3C), pthread_con- dattr_init(3C), pthread_create(3C), pthread_detach(3C), pthread_equal(3C), pthread_exit(3C), pthread_getconcurrency(3C), pthread_getsched- param(3C), pthread_join(3C), pthread_key_create(3C), pthread_key_delete(3C), pthread_mutex_init(3C), pthread_mutex_lock(3C), pthread_mutex_setprioceiling(3C), pthread_mutexattr_init(3C), pthread_mutexattr_init(3C), pthread_mutexattr_init(3C), pthread_mutex- attr_gettype(3C), pthread_mutexattr_getprotocol(3C), pthread_once(3C), pthread_rwlock_init(3C), pthread_rwlock_rdlock(3C), pthread_rwlock_unlock(3C), pthread_rwlock_wrlock(3C), pthread_rwlockattr_getpshared(3C), pthread_rwlockattr_init(3C), pthread_self(3C), pthread_setcancelstate(3C), pthread_setspecific(3C), attributes(5), standards(5) SunOS 5.10 9 Sep 2004 pthread.h(3HEAD)
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