[mpich-commits] [mpich] MPICH primary repository branch, master, updated. v3.2b1-79-gcae2623
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- Log -----------------------------------------------------------------
http://git.mpich.org/mpich.git/commitdiff/cae2623451508fa68f2167f00debdb218c7989aa
commit cae2623451508fa68f2167f00debdb218c7989aa
Author: Halim Amer <aamer at anl.gov>
Date: Fri Apr 17 19:20:32 2015 -0500
Revert "Applied the PPoPP patch"
This reverts commit 17e31e59b491fc1383653ddd41f8264e8c5c69e6.
diff --git a/src/include/mpiimplthreadpost.h b/src/include/mpiimplthreadpost.h
index 60a0882..be4578f 100644
--- a/src/include/mpiimplthreadpost.h
+++ b/src/include/mpiimplthreadpost.h
@@ -191,13 +191,7 @@ MPIU_Thread_CS_yield_lockname_recursive_impl_(enum MPIU_Nest_mutexes kind,
MPID_Thread_mutex_unlock(mutex);
MPID_Thread_yield();
-
-/* Use low priority here because this thread has a lower probability
- * to do useful work compared to others outside the progress engine.
- * This is only effective with the priority lock.
- * The other lock types implement a plain lock underneath.
- */
- MPID_Thread_mutex_lock_low(mutex);
+ MPID_Thread_mutex_lock(mutex);
}
/* undef for safety, this is a commonly-included header */
diff --git a/src/include/thread/mpiu_thread_posix_funcs.h b/src/include/thread/mpiu_thread_posix_funcs.h
index facea60..10af9fc 100644
--- a/src/include/thread/mpiu_thread_posix_funcs.h
+++ b/src/include/thread/mpiu_thread_posix_funcs.h
@@ -8,10 +8,8 @@
/*
* Threads
*/
-#include <limits.h>
+
#include "mpiu_process_wrappers.h" /* for MPIU_PW_Sched_yield */
-#include "mpidbg.h"
-#include "opa_primitives.h"
/*
One of PTHREAD_MUTEX_RECURSIVE_NP and PTHREAD_MUTEX_RECURSIVE seem to be
@@ -55,443 +53,144 @@ do { \
MPIU_DBG_MSG(THREAD,VERBOSE,"exit MPIU_Thread_yield"); \
} while (0)
-/*----------------------*/
-/* Ticket Lock Routines */
-/*----------------------*/
-
-static inline int ticket_lock_init(ticket_lock_t *lock)
-{
- OPA_store_int(&lock->next_ticket, 0);
- OPA_store_int(&lock->now_serving, 0);
- return 0;
-}
-
-/* Atomically increment the nex_ticket counter and get my ticket.
- Then spin on now_serving until it equals my ticket.
- */
-static inline int ticket_acquire_lock(ticket_lock_t* lock)
-{
- int my_ticket = OPA_fetch_and_add_int(&lock->next_ticket, 1);
- while(OPA_load_int(&lock->now_serving) != my_ticket)
- ;
- return 0;
-}
-
-/* Release the lock
- */
-static inline int ticket_release_lock(ticket_lock_t* lock)
-{
- /* Avoid compiler reordering before releasing the lock*/
- OPA_compiler_barrier();
- OPA_incr_int(&lock->now_serving);
- return 0;
-}
-
-/*------------------------*/
-/* Priority Lock Routines */
-/*------------------------*/
-
-static inline int priority_lock_init(priority_lock_t *lock)
-{
- OPA_store_int(&lock->next_ticket_H, 0);
- OPA_store_int(&lock->now_serving_H, 0);
- OPA_store_int(&lock->next_ticket_L, 0);
- OPA_store_int(&lock->now_serving_L, 0);
- OPA_store_int(&lock->next_ticket_B, 0);
- OPA_store_int(&lock->now_serving_B, 0);
- lock->already_blocked = 0;
- return 0;
-}
-
-/* First wait my turn in this priority level, Then if I am the first
- one to block the LPRs, wait for the last LPR to terminate.
- */
-static inline int priority_acquire_lock(priority_lock_t* lock)
-{
- int my_ticket = OPA_fetch_and_add_int(&lock->next_ticket_H, 1);
- while(OPA_load_int(&lock->now_serving_H) != my_ticket)
- ;
- int B_ticket;
- if(!lock->already_blocked)
- {
- B_ticket = OPA_fetch_and_add_int(&lock->next_ticket_B, 1);
- while(OPA_load_int(&lock->now_serving_B) != B_ticket)
- ;
- lock->already_blocked = 1;
- }
- lock->last_acquisition_priority = HIGH_PRIORITY;
- return 0;
-}
-static inline int priority_acquire_lock_low(priority_lock_t* lock)
-{
- int my_ticket = OPA_fetch_and_add_int(&lock->next_ticket_L, 1);
- while(OPA_load_int(&lock->now_serving_L) != my_ticket)
- ;
- int B_ticket = OPA_fetch_and_add_int(&lock->next_ticket_B, 1);
- while(OPA_load_int(&lock->now_serving_B) != B_ticket)
- ;
- lock->last_acquisition_priority = LOW_PRIORITY;
- return 0;
-}
-
-/* Release the lock
- */
-static inline int priority_release_lock(priority_lock_t* lock)
-{
- int err=0;
- if(lock->last_acquisition_priority==HIGH_PRIORITY)
- err = priority_release_lock_high(lock);
- else
- err = priority_release_lock_low(lock);
- return err;
-}
-
-static inline int priority_release_lock_high(priority_lock_t* lock)
-{
- /* Avoid compiler reordering before releasing the lock*/
- OPA_compiler_barrier();
- /* Only me in the HPRs queue -> let the LPRs pass */
- if(OPA_load_int(&lock->now_serving_H) == OPA_load_int(&lock->next_ticket_H) - 1)
- {
- lock->already_blocked = 0;
- OPA_incr_int(&lock->now_serving_B);
- }
- OPA_incr_int(&lock->now_serving_H);
- return 0;
-}
-
-static inline int priority_release_lock_low(priority_lock_t* lock)
-{
- /* Avoid compiler reordering before releasing the lock*/
- OPA_compiler_barrier();
- OPA_incr_int(&lock->now_serving_B);
- OPA_incr_int(&lock->now_serving_L);
- return 0;
-}
/*
- * MPIU Mutexes: encapsulate lower level locks like pthread mutexes
- * and ticket locks
+ * Mutexes
+ */
+
+/* FIXME: mutex creation and destruction should be implemented as routines
+ because there is no reason to use macros (these are not on the performance
+ critical path). Making these macros requires that any code that might use
+ these must load all of the pthread.h (or other thread library) support.
*/
+/* FIXME: using constant initializer if available */
#if !defined(MPICH_DEBUG_MUTEX) || !defined(PTHREAD_MUTEX_ERRORCHECK_VALUE)
-static inline void MPIU_Thread_mutex_create(MPIU_Thread_mutex_t* mutex_ptr_, int* err_ptr_)
-{
- int err__=0;
- switch(MPIU_lock_type){
- case MPIU_MUTEX:
- {
- err__ = pthread_mutex_init(&mutex_ptr_->pthread_lock, NULL);
- break;
- }
- case MPIU_TICKET:
- {
- err__ = ticket_lock_init(&mutex_ptr_->ticket_lock);
- break;
- }
- case MPIU_PRIORITY:
- {
- err__ = priority_lock_init(&mutex_ptr_->priority_lock);
- break;
- }
- }
- /* FIXME: convert error to an MPIU_THREAD_ERR value */
- *(int *)(err_ptr_) = err__;
- MPIU_DBG_MSG_P(THREAD,TYPICAL,"Created MPIU_Thread_mutex %p", (mutex_ptr_));
-}
+#define MPIU_Thread_mutex_create(mutex_ptr_, err_ptr_) \
+do { \
+ int err__; \
+ \
+ err__ = pthread_mutex_init((mutex_ptr_), NULL); \
+ /* FIXME: convert error to an MPIU_THREAD_ERR value */ \
+ *(int *)(err_ptr_) = err__; \
+ MPIU_DBG_MSG_P(THREAD,TYPICAL,"Created MPIU_Thread_mutex %p", (mutex_ptr_)); \
+} while (0)
#else /* MPICH_DEBUG_MUTEX */
-static inline void MPIU_Thread_mutex_create(MPIU_Thread_mutex_t* mutex_ptr_, int* err_ptr_)
-{
- int err__=0;
- switch(MPIU_lock_type){
- case MPIU_MUTEX:
- {
- pthread_mutexattr_t attr__;
- /* FIXME this used to be PTHREAD_MUTEX_ERRORCHECK_NP, but we had to change
- it for the thread granularity work when we needed recursive mutexes. We
- should go through this code and see if there's any good way to implement
- error checked versions with the recursive mutexes. */
- pthread_mutexattr_init(&attr__);
- pthread_mutexattr_settype(&attr__, PTHREAD_MUTEX_ERRORCHECK_VALUE);
- err__ = pthread_mutex_init(&mutex_ptr_->pthread_lock, &attr__);
- break;
- }
- case MPIU_TICKET:
- {
- err__ = ticket_lock_init(&mutex_ptr_->ticket_lock);
- break;
- }
- case MPIU_PRIORITY:
- {
- err__ = priority_lock_init(&mutex_ptr_->priority_lock);
- break;
- }
- }
- if (err__)
+#define MPIU_Thread_mutex_create(mutex_ptr_, err_ptr_) \
+do { \
+ int err__; \
+ pthread_mutexattr_t attr__; \
+ \
+ /* FIXME this used to be PTHREAD_MUTEX_ERRORCHECK_NP, but we had to change
+ it for the thread granularity work when we needed recursive mutexes. We
+ should go through this code and see if there's any good way to implement
+ error checked versions with the recursive mutexes. */ \
+ pthread_mutexattr_init(&attr__); \
+ pthread_mutexattr_settype(&attr__, PTHREAD_MUTEX_ERRORCHECK_VALUE); \
+ err__ = pthread_mutex_init((mutex_ptr_), &attr__); \
+ if (err__) \
MPIU_Internal_sys_error_printf("pthread_mutex_init", err__, \
- " %s:%d\n", __FILE__, __LINE__);
- /* FIXME: convert error to an MPIU_THREAD_ERR value */
- *(int *)(err_ptr_) = err__;
- MPIU_DBG_MSG_P(THREAD,TYPICAL,"Created MPIU_Thread_mutex %p", (mutex_ptr_));
-}
+ " %s:%d\n", __FILE__, __LINE__);\
+ /* FIXME: convert error to an MPIU_THREAD_ERR value */ \
+ *(int *)(err_ptr_) = err__; \
+ MPIU_DBG_MSG_P(THREAD,TYPICAL,"Created MPIU_Thread_mutex %p", (mutex_ptr_)); \
+} while (0)
#endif
-static inline void MPIU_Thread_mutex_destroy(MPIU_Thread_mutex_t* mutex_ptr_, int* err_ptr_)
-{
- int err__=0;
-
- MPIU_DBG_MSG_P(THREAD,TYPICAL,"About to destroy MPIU_Thread_mutex %p", (mutex_ptr_));
-
- switch(MPIU_lock_type){
- case MPIU_MUTEX:
- {
- err__ = pthread_mutex_destroy(&mutex_ptr_->pthread_lock);
- break;
- }
- case MPIU_TICKET:
- {
- /* FIXME Should we do something here ?*/
- err__ = 0;
- break;
- }
- case MPIU_PRIORITY:
- {
- /* FIXME Should we do something here ?*/
- err__ = 0;
- break;
- }
- }
- /* FIXME: convert error to an MPIU_THREAD_ERR value */
- *(int *)(err_ptr_) = err__;
-}
-
-#ifndef MPICH_DEBUG_MUTEX
-static inline void MPIU_Thread_mutex_lock(MPIU_Thread_mutex_t* mutex_ptr_, int* err_ptr_)
-{
- int err__=0;
- MPIU_DBG_MSG_P(THREAD,VERBOSE,"enter MPIU_Thread_mutex_lock %p", (mutex_ptr_));
-
- switch(MPIU_lock_type){
- case MPIU_MUTEX:
- {
- err__ = pthread_mutex_lock(&mutex_ptr_->pthread_lock);
- break;
- }
- case MPIU_TICKET:
- {
- err__ = ticket_acquire_lock(&mutex_ptr_->ticket_lock);
- break;
- }
- case MPIU_PRIORITY:
- {
- err__ = priority_acquire_lock(&mutex_ptr_->priority_lock);
- break;
- }
- }
-
- /* FIXME: convert error to an MPIU_THREAD_ERR value */
- *(int *)(err_ptr_) = err__;
- MPIU_DBG_MSG_P(THREAD,VERBOSE,"exit MPIU_Thread_mutex_lock %p", (mutex_ptr_));
-}
-#else /* MPICH_DEBUG_MUTEX */
-static inline void MPIU_Thread_mutex_lock(MPIU_Thread_mutex_t* mutex_ptr_, int* err_ptr_)
-{
- int err__=0;
- MPIU_DBG_MSG_P(THREAD,VERBOSE,"enter MPIU_Thread_mutex_lock %p", (mutex_ptr_));
- switch(MPIU_lock_type){
- case MPIU_MUTEX:
- {
- err__ = pthread_mutex_lock(&mutex_ptr_->pthread_lock);
- break;
- }
- case MPIU_TICKET:
- {
- err__ = ticket_acquire_lock(&mutex_ptr_->ticket_lock);
- break;
- }
- case MPIU_PRIORITY:
- {
- err__ = priority_acquire_lock(&mutex_ptr_->priority_lock);
- break;
- }
- }
-
- if (err__)
- {
- MPIU_DBG_MSG_S(THREAD,TERSE," mutex lock error: %s", MPIU_Strerror(err__));
- MPIU_Internal_sys_error_printf("pthread_mutex_lock", err__,\
- " %s:%d\n", __FILE__, __LINE__);
- }
- /* FIXME: convert error to an MPIU_THREAD_ERR value */
- *(int *)(err_ptr_) = err__;
- MPIU_DBG_MSG_P(THREAD,VERBOSE,"exit MPIU_Thread_mutex_lock %p", (mutex_ptr_));
-}
-#endif
+#define MPIU_Thread_mutex_destroy(mutex_ptr_, err_ptr_) \
+do { \
+ int err__; \
+ \
+ MPIU_DBG_MSG_P(THREAD,TYPICAL,"About to destroy MPIU_Thread_mutex %p", (mutex_ptr_)); \
+ err__ = pthread_mutex_destroy(mutex_ptr_); \
+ /* FIXME: convert error to an MPIU_THREAD_ERR value */ \
+ *(int *)(err_ptr_) = err__; \
+} while (0)
#ifndef MPICH_DEBUG_MUTEX
-static inline void MPIU_Thread_mutex_lock_low(MPIU_Thread_mutex_t* mutex_ptr_, int* err_ptr_)
-{
- int err__=0;
- MPIU_DBG_MSG_P(THREAD,VERBOSE,"enter MPIU_Thread_mutex_lock %p", (mutex_ptr_));
-
- switch(MPIU_lock_type){
- case MPIU_MUTEX:
- {
- err__ = pthread_mutex_lock(&mutex_ptr_->pthread_lock);
- break;
- }
- case MPIU_TICKET:
- {
- err__ = ticket_acquire_lock(&mutex_ptr_->ticket_lock);
- break;
- }
- case MPIU_PRIORITY:
- {
- err__ = priority_acquire_lock_low(&mutex_ptr_->priority_lock);
- break;
- }
- }
-
- /* FIXME: convert error to an MPIU_THREAD_ERR value */
- *(int *)(err_ptr_) = err__;
- MPIU_DBG_MSG_P(THREAD,VERBOSE,"exit MPIU_Thread_mutex_lock %p", (mutex_ptr_));
-}
+#define MPIU_Thread_mutex_lock(mutex_ptr_, err_ptr_) \
+do { \
+ int err__; \
+ MPIU_DBG_MSG_P(THREAD,VERBOSE,"enter MPIU_Thread_mutex_lock %p", (mutex_ptr_)); \
+ err__ = pthread_mutex_lock(mutex_ptr_); \
+ /* FIXME: convert error to an MPIU_THREAD_ERR value */ \
+ *(int *)(err_ptr_) = err__; \
+ MPIU_DBG_MSG_P(THREAD,VERBOSE,"exit MPIU_Thread_mutex_lock %p", (mutex_ptr_)); \
+} while (0)
#else /* MPICH_DEBUG_MUTEX */
-static inline void MPIU_Thread_mutex_lock_low(MPIU_Thread_mutex_t* mutex_ptr_, int* err_ptr_)
-{
- int err__=0;
- MPIU_DBG_MSG_P(THREAD,VERBOSE,"enter MPIU_Thread_mutex_lock %p", (mutex_ptr_));
- switch(MPIU_lock_type){
- case MPIU_MUTEX:
- {
- err__ = pthread_mutex_lock(&mutex_ptr_->pthread_lock);
- break;
- }
- case MPIU_TICKET:
- {
- err__ = ticket_acquire_lock(&mutex_ptr_->ticket_lock);
- break;
- }
- case MPIU_PRIORITY:
- {
- err__ = priority_acquire_lock_low(&mutex_ptr_->priority_lock);
- break;
- }
- }
-
- if (err__)
- {
- MPIU_DBG_MSG_S(THREAD,TERSE," mutex lock error: %s", MPIU_Strerror(err__));
+#define MPIU_Thread_mutex_lock(mutex_ptr_, err_ptr_) \
+do { \
+ int err__; \
+ MPIU_DBG_MSG_P(THREAD,VERBOSE,"enter MPIU_Thread_mutex_lock %p", (mutex_ptr_)); \
+ err__ = pthread_mutex_lock(mutex_ptr_); \
+ if (err__) \
+ { \
+ MPIU_DBG_MSG_S(THREAD,TERSE," mutex lock error: %s", MPIU_Strerror(err__)); \
MPIU_Internal_sys_error_printf("pthread_mutex_lock", err__,\
- " %s:%d\n", __FILE__, __LINE__);
- }
- /* FIXME: convert error to an MPIU_THREAD_ERR value */
- *(int *)(err_ptr_) = err__;
- MPIU_DBG_MSG_P(THREAD,VERBOSE,"exit MPIU_Thread_mutex_lock %p", (mutex_ptr_));
-}
+ " %s:%d\n", __FILE__, __LINE__);\
+ } \
+ /* FIXME: convert error to an MPIU_THREAD_ERR value */ \
+ *(int *)(err_ptr_) = err__; \
+ MPIU_DBG_MSG_P(THREAD,VERBOSE,"exit MPIU_Thread_mutex_lock %p", (mutex_ptr_)); \
+} while (0)
#endif
#ifndef MPICH_DEBUG_MUTEX
-static inline void MPIU_Thread_mutex_unlock(MPIU_Thread_mutex_t* mutex_ptr_, int* err_ptr_)
-{
- int err__=0;
-
- MPIU_DBG_MSG_P(THREAD,TYPICAL,"MPIU_Thread_mutex_unlock %p", (mutex_ptr_));
-
- switch(MPIU_lock_type){
- case MPIU_MUTEX:
- {
- err__ = pthread_mutex_unlock(&mutex_ptr_->pthread_lock);
- break;
- }
- case MPIU_TICKET:
- {
- err__ = ticket_release_lock(&mutex_ptr_->ticket_lock);
- break;
- }
- case MPIU_PRIORITY:
- {
- err__ = priority_release_lock(&mutex_ptr_->priority_lock);
- break;
- }
- }
-
- /* FIXME: convert error to an MPIU_THREAD_ERR value */
- *(int *)(err_ptr_) = err__;
-}
+#define MPIU_Thread_mutex_unlock(mutex_ptr_, err_ptr_) \
+do { \
+ int err__; \
+ \
+ MPIU_DBG_MSG_P(THREAD,TYPICAL,"MPIU_Thread_mutex_unlock %p", (mutex_ptr_)); \
+ err__ = pthread_mutex_unlock(mutex_ptr_); \
+ /* FIXME: convert error to an MPIU_THREAD_ERR value */ \
+ *(int *)(err_ptr_) = err__; \
+} while (0)
#else /* MPICH_DEBUG_MUTEX */
-static inline void MPIU_Thread_mutex_unlock(MPIU_Thread_mutex_t* mutex_ptr_, int* err_ptr_)
-{
- int err__=0;
-
- MPIU_DBG_MSG_P(THREAD,VERBOSE,"MPIU_Thread_mutex_unlock %p", (mutex_ptr_));
-
- switch(MPIU_lock_type){
- case MPIU_MUTEX:
- {
- err__ = pthread_mutex_unlock(&mutex_ptr_->pthread_lock);
- break;
- }
- case MPIU_TICKET:
- {
- err__ = ticket_release_lock(&mutex_ptr_->ticket_lock);
- break;
- }
- case MPIU_PRIORITY:
- {
- err__ = priority_release_lock(&mutex_ptr_->priority_lock);
- break;
- }
- }
- if (err__)
- {
- MPIU_DBG_MSG_S(THREAD,TERSE," mutex unlock error: %s", MPIU_Strerror(err__));
- MPIU_Internal_sys_error_printf("pthread_mutex_unlock", err__,\
- " %s:%d\n", __FILE__, __LINE__);
- }
- /* FIXME: convert error to an MPIU_THREAD_ERR value */
- *(int *)(err_ptr_) = err__;
-}
+#define MPIU_Thread_mutex_unlock(mutex_ptr_, err_ptr_) \
+do { \
+ int err__; \
+ \
+ MPIU_DBG_MSG_P(THREAD,VERBOSE,"MPIU_Thread_mutex_unlock %p", (mutex_ptr_)); \
+ err__ = pthread_mutex_unlock(mutex_ptr_); \
+ if (err__) \
+ { \
+ MPIU_DBG_MSG_S(THREAD,TERSE," mutex unlock error: %s", MPIU_Strerror(err__)); \
+ MPIU_Internal_sys_error_printf("pthread_mutex_unlock", err__, \
+ " %s:%d\n", __FILE__, __LINE__); \
+ } \
+ /* FIXME: convert error to an MPIU_THREAD_ERR value */ \
+ *(int *)(err_ptr_) = err__; \
+} while (0)
#endif
#ifndef MPICH_DEBUG_MUTEX
-static inline void MPIU_Thread_mutex_trylock(MPIU_Thread_mutex_t* mutex_ptr_, int* flag_ptr_, int* err_ptr_)
-{
- int err__=0;
-
- if(MPIU_lock_type == MPIU_MUTEX)
- err__ = pthread_mutex_trylock(&mutex_ptr_->pthread_lock);
- else
- /*No trylock routine for ticket-based locks*/
- err__ = 1;
-
- *(flag_ptr_) = (err__ == 0) ? TRUE : FALSE;
- MPIU_DBG_MSG_FMT(THREAD,VERBOSE,(MPIU_DBG_FDEST, "MPIU_Thread_mutex_trylock mutex=%p result=%s", (mutex_ptr_), (*(flag_ptr_) ? "success" : "failure")));
- *(int *)(err_ptr_) = (err__ == EBUSY) ? MPIU_THREAD_SUCCESS : err__;
- /* FIXME: convert error to an MPIU_THREAD_ERR value */
-}
+#define MPIU_Thread_mutex_trylock(mutex_ptr_, flag_ptr_, err_ptr_) \
+do { \
+ int err__; \
+ \
+ err__ = pthread_mutex_trylock(mutex_ptr_); \
+ *(flag_ptr_) = (err__ == 0) ? TRUE : FALSE; \
+ MPIU_DBG_MSG_FMT(THREAD,VERBOSE,(MPIU_DBG_FDEST, "MPIU_Thread_mutex_trylock mutex=%p result=%s", (mutex_ptr_), (*(flag_ptr_) ? "success" : "failure"))); \
+ *(int *)(err_ptr_) = (err__ == EBUSY) ? MPIU_THREAD_SUCCESS : err__; \
+ /* FIXME: convert error to an MPIU_THREAD_ERR value */ \
+} while (0)
#else /* MPICH_DEBUG_MUTEX */
-static inline void MPIU_Thread_mutex_trylock(MPIU_Thread_mutex_t* mutex_ptr_, int* flag_ptr_, int* err_ptr_)
-{
- int err__=0;
-
- if(MPIU_lock_type == MPIU_MUTEX)
- err__ = pthread_mutex_trylock(&mutex_ptr_->pthread_lock);
- else
- /*No trylock routine for ticket-based locks*/
- err__ = 1;
-
- if (err__ && err__ != EBUSY)
- {
- MPIU_DBG_MSG_S(THREAD,TERSE," mutex trylock error: %s", MPIU_Strerror(err__));
+#define MPIU_Thread_mutex_trylock(mutex_ptr_, flag_ptr_, err_ptr_) \
+do { \
+ int err__; \
+ \
+ err__ = pthread_mutex_trylock(mutex_ptr_); \
+ if (err__ && err__ != EBUSY) \
+ { \
+ MPIU_DBG_MSG_S(THREAD,TERSE," mutex trylock error: %s", MPIU_Strerror(err__)); \
MPIU_Internal_sys_error_printf("pthread_mutex_trylock", err__,\
- " %s:%d\n", __FILE__, __LINE__);
- }
- *(flag_ptr_) = (err__ == 0) ? TRUE : FALSE;
- MPIU_DBG_MSG_FMT(THREAD,VERBOSE,(MPIU_DBG_FDEST, "MPIU_Thread_mutex_trylock mutex=%p result=%s", (mutex_ptr_), (*(flag_ptr_) ? "success" : "failure")));
- *(int *)(err_ptr_) = (err__ == EBUSY) ? MPIU_THREAD_SUCCESS : err__;
- /* FIXME: convert error to an MPIU_THREAD_ERR value */
-}
+ " %s:%d\n", __FILE__, __LINE__);\
+ } \
+ *(flag_ptr_) = (err__ == 0) ? TRUE : FALSE; \
+ MPIU_DBG_MSG_FMT(THREAD,VERBOSE,(MPIU_DBG_FDEST, "MPIU_Thread_mutex_trylock mutex=%p result=%s", (mutex_ptr_), (*(flag_ptr_) ? "success" : "failure"))); \
+ *(int *)(err_ptr_) = (err__ == EBUSY) ? MPIU_THREAD_SUCCESS : err__; \
+ /* FIXME: convert error to an MPIU_THREAD_ERR value */ \
+} while (0)
#endif
/*
diff --git a/src/include/thread/mpiu_thread_posix_types.h b/src/include/thread/mpiu_thread_posix_types.h
index c163b67..b38f7a1 100644
--- a/src/include/thread/mpiu_thread_posix_types.h
+++ b/src/include/thread/mpiu_thread_posix_types.h
@@ -7,59 +7,8 @@
#include <errno.h>
#include <pthread.h>
-#include "opa_primitives.h"
-
-/* Define lock types here */
-typedef enum{
- MPIU_MUTEX,
- MPIU_TICKET,
- MPIU_PRIORITY
-}MPIU_Thread_lock_impl_t;
-
-MPIU_Thread_lock_impl_t MPIU_lock_type;
-
-/*----------------------------*/
-/* Ticket lock data structure */
-/*----------------------------*/
-
-/* Define the lock as a structure of two counters */
-typedef struct ticket_lock_t{
- OPA_int_t next_ticket;
- OPA_int_t now_serving;
-} ticket_lock_t;
-
-/*------------------------------*/
-/* Priority lock data structure */
-/*------------------------------*/
-
-#define HIGH_PRIORITY 1
-#define LOW_PRIORITY 2
-
- /* We only define for now 2 levels of priority: */
- /* The high priority requests (HPRs) */
- /* The low priority requests (LPRs) */
-typedef struct priority_lock_t{
- OPA_int_t next_ticket_H __attribute__((aligned(64)));
- OPA_int_t now_serving_H;
- OPA_int_t next_ticket_L __attribute__((aligned(64)));
- OPA_int_t now_serving_L;
- /* In addition we include two other counters */
- /* so high priority requests block the lower ones */
- OPA_int_t next_ticket_B __attribute__((aligned(64)));
- OPA_int_t now_serving_B;
- /* This is to allow high priority requests know */
- /* that low priority requests are already blocked */
- /* by another high*/
- unsigned already_blocked;
- unsigned last_acquisition_priority;
-} priority_lock_t;
-
-typedef struct MPIU_Thread_mutex_t{
- pthread_mutex_t pthread_lock;
- ticket_lock_t ticket_lock;
- priority_lock_t priority_lock;
-} MPIU_Thread_mutex_t;
+typedef pthread_mutex_t MPIU_Thread_mutex_t;
typedef pthread_cond_t MPIU_Thread_cond_t;
typedef pthread_t MPIU_Thread_id_t;
typedef pthread_key_t MPIU_Thread_tls_t;
diff --git a/src/mpi/init/async.c b/src/mpi/init/async.c
index a95e648..c003827 100644
--- a/src/mpi/init/async.c
+++ b/src/mpi/init/async.c
@@ -61,10 +61,9 @@ static void progress_fn(void * data)
MPIU_Thread_mutex_unlock(&progress_mutex, &mpi_errno);
MPIU_Assert(!mpi_errno);
- if(MPIU_lock_type==MPIU_MUTEX){
- MPIU_Thread_cond_signal(&progress_cond, &mpi_errno);
- MPIU_Assert(!mpi_errno);
- } /* Else: busy loop will automatically break*/
+
+ MPIU_Thread_cond_signal(&progress_cond, &mpi_errno);
+ MPIU_Assert(!mpi_errno);
MPIU_THREAD_CS_EXIT(ALLFUNC,);
@@ -138,21 +137,16 @@ int MPIR_Finalize_async_thread(void)
/* XXX DJG why is this unlock/lock necessary? Should we just YIELD here or later? */
MPIU_THREAD_CS_EXIT(ALLFUNC,);
- if(MPIU_lock_type==MPIU_MUTEX){
- MPIU_Thread_mutex_lock(&progress_mutex, &mpi_errno);
- MPIU_Assert(!mpi_errno);
-
- while (!progress_thread_done) {
- MPIU_Thread_cond_wait(&progress_cond, &progress_mutex.pthread_lock, &mpi_errno);
- MPIU_Assert(!mpi_errno);
- }
-
- MPIU_Thread_mutex_unlock(&progress_mutex, &mpi_errno);
- MPIU_Assert(!mpi_errno);
- }
- else
- while (!progress_thread_done) ; /* busy loop */
- /* No need to unlock the mutex */
+ MPIU_Thread_mutex_lock(&progress_mutex, &mpi_errno);
+ MPIU_Assert(!mpi_errno);
+
+ while (!progress_thread_done) {
+ MPIU_Thread_cond_wait(&progress_cond, &progress_mutex, &mpi_errno);
+ MPIU_Assert(!mpi_errno);
+ }
+
+ MPIU_Thread_mutex_unlock(&progress_mutex, &mpi_errno);
+ MPIU_Assert(!mpi_errno);
mpi_errno = MPIR_Comm_free_impl(progress_comm_ptr);
MPIU_Assert(!mpi_errno);
diff --git a/src/mpi/init/initthread.c b/src/mpi/init/initthread.c
index 2b5db44..aaf20c8 100644
--- a/src/mpi/init/initthread.c
+++ b/src/mpi/init/initthread.c
@@ -190,16 +190,6 @@ static int MPIR_Thread_CS_Init( void )
int err;
MPIU_THREADPRIV_DECL;
- MPIU_lock_type = MPIU_MUTEX;
- char *s;
- s = getenv( "MPICH_LOCK_TYPE" );
- if(s){
- if(strcmp( "ticket", s ) == 0)
- MPIU_lock_type = MPIU_TICKET;
- else if (strcmp( "priority", s ) == 0)
- MPIU_lock_type = MPIU_PRIORITY;
- }
-
MPIU_Assert(MPICH_MAX_LOCKS >= MPIU_Nest_NUM_MUTEXES);
/* we create this at all granularities right now */
@@ -568,30 +558,6 @@ int MPIR_Init_thread(int * argc, char ***argv, int required, int * provided)
if (mpi_errno == MPI_SUCCESS)
mpi_errno = MPID_InitCompleted();
- const char *s;
-
- switch(MPIU_lock_type){
- case MPIU_MUTEX:
- {
- s = "mutex";
- break;
- }
- case MPIU_TICKET:
- {
- s = "ticket";
- break;
- }
- case MPIU_PRIORITY:
- {
- s = "priority";
- break;
- }
- }
-
- if(MPIR_Process.comm_world->rank==0){
- printf("\n[MPICH INFO] Critical section(s) based on %s \n\n", s);
- }
-
fn_exit:
MPIU_THREAD_CS_EXIT(INIT,required);
/* Make fields of MPIR_Process global visible and set mpich_state
@@ -660,7 +626,6 @@ int MPI_Init_thread( int *argc, char ***argv, int required, int *provided )
{
int mpi_errno = MPI_SUCCESS;
int rc ATTRIBUTE((unused)), reqd = required;
-
MPID_MPI_INIT_STATE_DECL(MPID_STATE_MPI_INIT_THREAD);
rc = MPID_Wtime_init();
diff --git a/src/mpid/ch3/channels/nemesis/src/ch3_progress.c b/src/mpid/ch3/channels/nemesis/src/ch3_progress.c
index 8dda2cd..f022651 100644
--- a/src/mpid/ch3/channels/nemesis/src/ch3_progress.c
+++ b/src/mpid/ch3/channels/nemesis/src/ch3_progress.c
@@ -563,24 +563,13 @@ static int MPIDI_CH3I_Progress_delay(unsigned int completion_count)
/* FIXME should be appropriately abstracted somehow */
# if defined(MPICH_IS_THREADED) && (MPIU_THREAD_GRANULARITY == MPIU_THREAD_GRANULARITY_GLOBAL)
{
- if(MPIU_lock_type==MPIU_MUTEX){
while (1)
{
if (completion_count != OPA_load_int(&MPIDI_CH3I_progress_completion_count) ||
MPIDI_CH3I_progress_blocked != TRUE)
break;
- MPID_Thread_cond_wait(&MPIDI_CH3I_progress_completion_cond, &MPIR_ThreadInfo.global_mutex.pthread_lock/*MPIDCOMM*/);
+ MPID_Thread_cond_wait(&MPIDI_CH3I_progress_completion_cond, &MPIR_ThreadInfo.global_mutex/*MPIDCOMM*/);
}
- }
- else{
- /* First release the lock and then enter a busy loop*/
- MPID_Thread_mutex_unlock(&MPIR_ThreadInfo.global_mutex/*MPIDCOMM*/);
- while (completion_count == OPA_load_int(&MPIDI_CH3I_progress_completion_count) &&
- MPIDI_CH3I_progress_blocked == TRUE)
- ; /* wait in a busy loop*/
- /* Hold the lock again*/
- MPID_Thread_mutex_lock(&MPIR_ThreadInfo.global_mutex/*MPIDCOMM*/);
- }
}
# endif
@@ -604,9 +593,7 @@ static int MPIDI_CH3I_Progress_continue(unsigned int completion_count/*unused*/)
# if defined(MPICH_IS_THREADED) && (MPIU_THREAD_GRANULARITY == MPIU_THREAD_GRANULARITY_GLOBAL)
{
/* we currently hold the MPIDCOMM CS */
- if(MPIU_lock_type==MPIU_MUTEX)
MPID_Thread_cond_broadcast(&MPIDI_CH3I_progress_completion_cond);
- /* Else, the condition shoul be satisfied to break the busy loop*/
}
# endif
diff --git a/src/mpid/common/thread/mpid_thread.h b/src/mpid/common/thread/mpid_thread.h
index df9c355..8386cf2 100644
--- a/src/mpid/common/thread/mpid_thread.h
+++ b/src/mpid/common/thread/mpid_thread.h
@@ -314,14 +314,6 @@ do { \
("mutex_unlock failed, err_=%d (%s)",err_,MPIU_Strerror(err_))); \
} while (0)
-#define MPID_Thread_mutex_lock_low(mutex_) \
-do { \
- int err_; \
- MPIU_Thread_mutex_lock_low((mutex_), &err_); \
- MPIU_Assert_fmt_msg(err_ == MPIU_THREAD_SUCCESS, \
- ("mutex_lock failed, err_=%d (%s)",err_,MPIU_Strerror(err_))); \
-} while (0)
-
#define MPID_Thread_mutex_trylock(mutex_, flag_) \
do { \
int err_; \
-----------------------------------------------------------------------
Summary of changes:
src/include/mpiimplthreadpost.h | 8 +-
src/include/thread/mpiu_thread_posix_funcs.h | 535 +++++-----------------
src/include/thread/mpiu_thread_posix_types.h | 53 +---
src/mpi/init/async.c | 32 +-
src/mpi/init/initthread.c | 35 --
src/mpid/ch3/channels/nemesis/src/ch3_progress.c | 15 +-
src/mpid/common/thread/mpid_thread.h | 8 -
7 files changed, 133 insertions(+), 553 deletions(-)
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