No need for ORTE tools to use orte progress thread

This commit was SVN r28445.

orte/orted/orted_main.c

@@ -811,19 +811,9 @@ int orte_daemon(int argc, char *argv[])
     }
 
     /* loop the event lib until an exit event is detected */
-#if ORTE_ENABLE_PROGRESS_THREADS
-    while (orte_event_base_active) {
-        /* provide a very short quiet period so we
-         * don't hammer the cpu while
-         */
-        struct timespec tp = {0, 100};
-        nanosleep(&tp, NULL);
-    }
-#else
     while (orte_event_base_active) {
         opal_event_loop(orte_event_base, OPAL_EVLOOP_ONCE);
     }
-#endif
 
     /* ensure all local procs are dead */
     orte_odls.kill_local_procs(NULL);

orte/runtime/orte_finalize.c

@@ -71,18 +71,20 @@ int orte_finalize(void)
     
     /* close the ess itself */
     (void) mca_base_framework_close(&orte_ess_base_framework);
-    
+
+    if (ORTE_PROC_IS_APP) {
 #if ORTE_ENABLE_PROGRESS_THREADS
-    /* stop the progress thread */
-    orte_event_base_active = false;
-    /* break the event loop */
-    opal_event_base_loopbreak(orte_event_base);
-    /* wait for thread to exit */
-    opal_thread_join(&orte_progress_thread, NULL);
-    OBJ_DESTRUCT(&orte_progress_thread);
-    /* release the event base */
-/*    opal_event_base_free(orte_event_base); */
+        /* stop the progress thread */
+        orte_event_base_active = false;
+        /* break the event loop */
+        opal_event_base_loopbreak(orte_event_base);
+        /* wait for thread to exit */
+        opal_thread_join(&orte_progress_thread, NULL);
+        OBJ_DESTRUCT(&orte_progress_thread);
+        /* release the event base */
+        opal_event_base_free(orte_event_base);
 #endif
+    }
 
     /* cleanup the process info */
     orte_proc_info_finalize();

orte/runtime/orte_init.c

@@ -138,8 +138,8 @@ int orte_init(int* pargc, char*** pargv, orte_proc_type_t flags)
         goto error;
     }
 
+    if (ORTE_PROC_IS_APP) {
 #if ORTE_ENABLE_PROGRESS_THREADS
-#if OPAL_EVENT_HAVE_THREAD_SUPPORT
         /* get a separate orte event base */
         orte_event_base = opal_event_base_create();
        /* construct the thread object */
@@ -150,15 +150,16 @@ int orte_init(int* pargc, char*** pargv, orte_proc_type_t flags)
             error = "orte progress thread start";
             goto error;
         }
-#else
-        error = "event thread support is not configured";
-        ret = ORTE_ERROR;
-        goto error;
-#endif
 #else
         /* set the event base to the opal one */
         orte_event_base = opal_event_base;
 #endif
+    } else {
+        /* ORTE tools "block" in their own loop over the event
+         * base, so no progress thread is required
+         */
+        orte_event_base = opal_event_base;
+    }
 
     /* initialize the RTE for this environment */
     if (ORTE_SUCCESS != (ret = orte_ess.init())) {

orte/tools/orterun/orterun.c

@@ -1025,19 +1025,9 @@ int orterun(int argc, char *argv[])
     rc = orte_plm.spawn(jdata);
 
     /* loop the event lib until an exit event is detected */
-#if ORTE_ENABLE_PROGRESS_THREADS
-    while (orte_event_base_active) {
-        /* provide a very short quiet period so we
-         * don't hammer the cpu while
-         */
-        struct timespec tp = {0, 100};
-        nanosleep(&tp, NULL);
-    }
-#else
     while (orte_event_base_active) {
         opal_event_loop(orte_event_base, OPAL_EVLOOP_ONCE);
     }
-#endif
 
     /* ensure all local procs are dead */
     orte_odls.kill_local_procs(NULL);