4fff584a68
The primary change that underlies all this is in the OOB. Specifically, the problem in the code until now has been that the OOB attempts to resolve an address when we call the "send" to an unknown recipient. The OOB would then wait forever if that recipient never actually started (and hence, never reported back its OOB contact info). In the case of an orted that failed to start, we would correctly detect that the orted hadn't started, but then we would attempt to order all orteds (including the one that failed to start) to die. This would cause the OOB to "hang" the system. Unfortunately, revising how the OOB resolves addresses introduced a number of additional problems. Specifically, and most troublesome, was the fact that comm_spawn involved the immediate transmission of the rendezvous point from parent-to-child after the child was spawned. The current code used the OOB address resolution as a "barrier" - basically, the parent would attempt to send the info to the child, and then "hold" there until the child's contact info had arrived (meaning the child had started) and the send could be completed. Note that this also caused comm_spawn to "hang" the entire system if the child never started... The app-failed-to-start helped improve that behavior - this code provides additional relief. With this change, the OOB will return an ADDRESSEE_UNKNOWN error if you attempt to send to a recipient whose contact info isn't already in the OOB's hash tables. To resolve comm_spawn issues, we also now force the cross-sharing of connection info between parent and child jobs during spawn. Finally, to aid in setting triggers to the right values, we introduce the "arith" API for the GPR. This function allows you to atomically change the value in a registry location (either divide, multiply, add, or subtract) by the provided operand. It is equivalent to first fetching the value using a "get", then modifying it, and then putting the result back into the registry via a "put". This commit was SVN r14711.
417 строки
11 KiB
C
417 строки
11 KiB
C
/* -*- C -*-
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*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "orte_config.h"
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#include "orte/mca/gpr/gpr.h"
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#include "orte/orte_constants.h"
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#include "opal/util/output.h"
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#include "orte/mca/gpr/base/base.h"
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static int
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orte_gpr_null_module_init(void)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_begin_compound_cmd(void)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_stop_compound_cmd(void)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_exec_compound_cmd(void)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_cleanup_job(orte_jobid_t jobid)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_cleanup_proc(orte_process_name_t * proc)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_preallocate_segment(char *name, orte_std_cntr_t num_slots)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_delete_segment(char *segment)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_delete_segment_nb(char *segment,
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orte_gpr_notify_cb_fn_t cbfunc,
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void *user_tag)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_put(orte_std_cntr_t cnt, orte_gpr_value_t ** values)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_put_nb(orte_std_cntr_t cnt, orte_gpr_value_t ** values,
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orte_gpr_notify_cb_fn_t cbfunc, void *user_tag)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_get(orte_gpr_addr_mode_t addr_mode,
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char *segment, char **tokens, char **keys,
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orte_std_cntr_t * cnt, orte_gpr_value_t *** values)
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{
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return ORTE_ERR_NOT_IMPLEMENTED;
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}
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static int
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orte_gpr_null_get_conditional(orte_gpr_addr_mode_t addr_mode,
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char *segment, char **tokens, char **keys,
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orte_std_cntr_t num_conditions, orte_gpr_keyval_t **conditions,
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orte_std_cntr_t * cnt, orte_gpr_value_t *** values)
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{
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return ORTE_ERR_NOT_IMPLEMENTED;
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}
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static int
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orte_gpr_null_get_nb(orte_gpr_addr_mode_t addr_mode,
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char *segment, char **tokens, char **keys,
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orte_gpr_notify_cb_fn_t cbfunc, void *user_tag)
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{
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return ORTE_ERR_NOT_IMPLEMENTED;
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}
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static int
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orte_gpr_null_delete_entries(orte_gpr_addr_mode_t addr_mode,
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char *segment, char **tokens,
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char **keys)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_delete_entries_nb(orte_gpr_addr_mode_t addr_mode,
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char *segment, char **tokens,
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char **keys,
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orte_gpr_notify_cb_fn_t cbfunc,
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void *user_tag)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_index(char *segment, orte_std_cntr_t * cnt, char ***index)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_index_nb(char *segment,
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orte_gpr_notify_cb_fn_t cbfunc,
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void *user_tag)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_subscribe(orte_std_cntr_t num_subs,
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orte_gpr_subscription_t ** subscriptions,
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orte_std_cntr_t num_trigs,
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orte_gpr_trigger_t ** triggers)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_unsubscribe(orte_gpr_subscription_id_t sub_number)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_cancel_trigger(orte_gpr_trigger_id_t trig_number)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_dump_all(void)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_dump_segments(char *segment)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_dump_triggers(orte_gpr_trigger_id_t start)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_dump_subscriptions(orte_gpr_subscription_id_t start)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_dump_local_triggers(void)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_dump_local_subscriptions(void)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_dump_callbacks(void)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_dump_notify_msg(orte_gpr_notify_message_t * msg)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_dump_notify_data(orte_gpr_notify_data_t * data)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_dump_value(orte_gpr_value_t * value)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_dump_segment_size(char *segment)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_increment_value(orte_gpr_value_t * value)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_decrement_value(orte_gpr_value_t * value)
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{
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return ORTE_SUCCESS;
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}
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static int
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orte_gpr_null_arith(orte_gpr_addr_mode_t addr_mode,
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char *segment, char **tokens, char **keys,
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orte_dss_arith_op_t operation,
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orte_data_value_t *value)
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{
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return ORTE_SUCCESS;
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}
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static int orte_gpr_null_put_1(orte_gpr_addr_mode_t addr_mode,
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char *segment, char **tokens,
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char *key, orte_data_value_t* value)
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{
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return ORTE_SUCCESS;
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}
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static int orte_gpr_null_put_N(orte_gpr_addr_mode_t addr_mode,
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char *segment, char **tokens,
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orte_std_cntr_t n, char **keys,
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orte_data_value_t **data_values)
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{
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return ORTE_SUCCESS;
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}
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static int orte_gpr_null_subscribe_1(orte_gpr_subscription_id_t *id,
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char *trig_name,
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char *sub_name,
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orte_gpr_notify_action_t action,
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orte_gpr_addr_mode_t addr_mode,
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char *segment,
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char **tokens,
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char *key,
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orte_gpr_notify_cb_fn_t cbfunc,
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void *user_tag)
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{
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return ORTE_SUCCESS;
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}
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static int orte_gpr_null_subscribe_N(orte_gpr_subscription_id_t *id,
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char *trig_name,
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char *sub_name,
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orte_gpr_notify_action_t action,
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orte_gpr_addr_mode_t addr_mode,
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char *segment,
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char **tokens,
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orte_std_cntr_t n,
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char **keys,
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orte_gpr_notify_cb_fn_t cbfunc,
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void *user_tag)
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{
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return ORTE_SUCCESS;
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}
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static int orte_gpr_null_define_trigger(orte_gpr_trigger_id_t *id,
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char *trig_name,
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orte_gpr_trigger_action_t action,
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orte_gpr_addr_mode_t addr_mode,
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char *segment,
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char **tokens,
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orte_std_cntr_t n,
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char **keys,
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orte_gpr_trigger_cb_fn_t cbfunc,
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void *user_tag)
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{
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return ORTE_SUCCESS;
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}
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static int orte_gpr_null_define_trigger_level(orte_gpr_trigger_id_t *id,
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char *trig_name,
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orte_gpr_trigger_action_t action,
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orte_gpr_addr_mode_t addr_mode,
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char *segment,
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char **tokens,
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orte_std_cntr_t n,
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char **keys,
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orte_std_cntr_t *levels,
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orte_gpr_trigger_cb_fn_t cbfunc,
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void *user_tag)
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{
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return ORTE_SUCCESS;
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}
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static int orte_gpr_null_deliver_notify_msg(orte_gpr_notify_message_t *msg)
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{
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return ORTE_SUCCESS;
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}
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static int orte_gpr_null_dump_a_trigger(
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char *name,
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orte_gpr_trigger_id_t id)
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{
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return ORTE_SUCCESS;
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}
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static int orte_gpr_null_dump_a_subscription(
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char *name,
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orte_gpr_subscription_id_t id)
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{
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return ORTE_SUCCESS;
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}
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/*
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* setup the function pointers for the module
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*/
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orte_gpr_base_module_t orte_gpr_null_module = {
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/* INIT */
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orte_gpr_null_module_init,
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/* BLOCKING OPERATIONS */
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orte_gpr_null_get,
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orte_gpr_null_get_conditional,
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orte_gpr_null_put,
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orte_gpr_null_put_1,
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orte_gpr_null_put_N,
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orte_gpr_null_delete_entries,
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orte_gpr_null_delete_segment,
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orte_gpr_null_index,
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/* NON-BLOCKING OPERATIONS */
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orte_gpr_null_get_nb,
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orte_gpr_null_put_nb,
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orte_gpr_null_delete_entries_nb,
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orte_gpr_null_delete_segment_nb,
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orte_gpr_null_index_nb,
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/* GENERAL OPERATIONS */
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orte_gpr_base_create_value,
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orte_gpr_base_create_keyval,
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orte_gpr_null_preallocate_segment,
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orte_gpr_null_deliver_notify_msg,
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/* ARITHMETIC OPERATIONS */
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orte_gpr_null_arith,
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orte_gpr_null_increment_value,
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orte_gpr_null_decrement_value,
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/* SUBSCRIBE OPERATIONS */
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orte_gpr_null_subscribe,
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orte_gpr_null_subscribe_1,
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orte_gpr_null_subscribe_N,
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orte_gpr_null_define_trigger,
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orte_gpr_null_define_trigger_level,
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orte_gpr_null_unsubscribe,
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orte_gpr_null_cancel_trigger,
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/* COMPOUND COMMANDS */
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orte_gpr_null_begin_compound_cmd,
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orte_gpr_null_stop_compound_cmd,
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orte_gpr_null_exec_compound_cmd,
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/* DIAGNOSTIC OPERATIONS */
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orte_gpr_null_dump_all,
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orte_gpr_null_dump_segments,
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orte_gpr_null_dump_triggers,
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orte_gpr_null_dump_subscriptions,
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orte_gpr_null_dump_a_trigger,
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orte_gpr_null_dump_a_subscription,
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orte_gpr_null_dump_local_triggers,
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orte_gpr_null_dump_local_subscriptions,
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orte_gpr_null_dump_callbacks,
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orte_gpr_null_dump_notify_msg,
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orte_gpr_null_dump_notify_data,
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orte_gpr_null_dump_value,
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orte_gpr_null_dump_segment_size,
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/* CLEANUP OPERATIONS */
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orte_gpr_null_cleanup_job,
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orte_gpr_null_cleanup_proc
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};
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