openmpi/orte/runtime/orte_quit.h

/*
 * Copyright (c) 2010      Cisco Systems, Inc. All rights reserved.
 *
 * $COPYRIGHT$
 * 
 * Additional copyrights may follow
 * 
 * $HEADER$
 */

/** 
 * @file 
 *
 */

#ifndef ORTE_QUIT_H
#define ORTE_QUIT_H

#include "orte_config.h"

BEGIN_C_DECLS

ORTE_DECLSPEC void orte_jobs_complete(void);

ORTE_DECLSPEC void orte_quit(void);

END_C_DECLS

#endif /* ORTE_CR_H */
Start reducing our dependency on the event library by removing at least one instance where we use it to redirect the program counter. Rolf reported occasional hangs of mpirun in very specific circumstances after all daemons were done. A review of MTT results indicates this may have been happening more generally in a small fraction of cases. The problem was tracked to use of the grpcomm.onesided_barrier to control daemon/mpirun termination. This relied on messaging -and- required that the program counter jump from the errmgr back to grpcomm. On rare occasions, this jump did not occur, causing mpirun to hang. This patch looks more invasive than it is - most of the affected files simply had one or two lines removed. The essence of the change is: * pulled the job_complete and quit routines out of orterun and orted_main and put them in a common place * modified the errmgr to directly call the new routines when termination is detected * removed the grpcomm.onesided_barrier and its associated RML tag * add a new "num_routes" API to the routed framework that reports back the number of dependent routes. When route_lost is called, the daemon's list of "children" is checked and adjusted if that route went to a "leaf" in the routing tree * use connection termination between daemons to track rollup of the daemon tree. Daemons and HNP now terminate once num_routes returns zero Also picked up in this commit is the addition of a new bool flag to the app_context struct, and increasing the job_control field from 8 to 16 bits. Both trivial. This commit was SVN r23429. 2010-07-18 01:03:27 +04:00			`/*`
			`* Copyright (c) 2010 Cisco Systems, Inc. All rights reserved.`
			`*`
			`* $COPYRIGHT$`
			`*`
			`* Additional copyrights may follow`
			`*`
			`* $HEADER$`
			`*/`

			`/**`
			`* @file`
			`*`
			`*/`

			`#ifndef ORTE_QUIT_H`
			`#define ORTE_QUIT_H`

			`#include "orte_config.h"`

			`BEGIN_C_DECLS`

			`ORTE_DECLSPEC void orte_jobs_complete(void);`

			`ORTE_DECLSPEC void orte_quit(void);`

			`END_C_DECLS`

			`#endif /* ORTE_CR_H */`