/*
* Copyright (c) 2007-2011 Los Alamos National Security, LLC.
* All rights reserved.
* Copyright (c) 2004-2011 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2011-2012 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2013-2017 Intel, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "orte_config.h"
#include "orte/constants.h"
#include <stddef.h>
#include "opal/dss/dss.h"
#include "opal/class/opal_hash_table.h"
#include "opal/class/opal_bitmap.h"
#include "opal/runtime/opal_progress.h"
#include "opal/util/output.h"
#include "orte/mca/errmgr/errmgr.h"
#include "orte/mca/ess/ess.h"
#include "orte/mca/rml/rml.h"
#include "orte/mca/rml/rml_types.h"
#include "orte/util/name_fns.h"
#include "orte/runtime/orte_globals.h"
#include "orte/runtime/orte_wait.h"
#include "orte/runtime/runtime.h"
#include "orte/runtime/data_type_support/orte_dt_support.h"
#include "orte/mca/rml/base/rml_contact.h"
#include "orte/mca/routed/base/base.h"
#include "routed_radix.h"
static int init(void);
static int finalize(void);
static int delete_route(orte_process_name_t *proc);
static int update_route(orte_process_name_t *target,
orte_process_name_t *route);
static orte_process_name_t get_route(orte_process_name_t *target);
static int route_lost(const orte_process_name_t *route);
static bool route_is_defined(const orte_process_name_t *target);
static void update_routing_plan(void);
static void get_routing_list(opal_list_t *coll);
static int set_lifeline(orte_process_name_t *proc);
static size_t num_routes(void);
#if OPAL_ENABLE_FT_CR == 1
static int radix_ft_event(int state);
#endif
orte_routed_module_t orte_routed_radix_module = {
.initialize = init,
.finalize = finalize,
.delete_route = delete_route,
.update_route = update_route,
.get_route = get_route,
.route_lost = route_lost,
.route_is_defined = route_is_defined,
.set_lifeline = set_lifeline,
.update_routing_plan = update_routing_plan,
.get_routing_list = get_routing_list,
.num_routes = num_routes,
#if OPAL_ENABLE_FT_CR == 1
.ft_event = radix_ft_event
#else
NULL
#endif
};
/* local globals */
static orte_process_name_t *lifeline=NULL;
static orte_process_name_t local_lifeline;
static int num_children;
static opal_list_t my_children;
static bool hnp_direct=true;
static int init(void)
{
lifeline = NULL;
if (ORTE_PROC_IS_DAEMON) {
/* if we are using static ports, set my lifeline to point at my parent */
if (orte_static_ports) {
lifeline = ORTE_PROC_MY_PARENT;
} else {
/* set our lifeline to the HNP - we will abort if that connection is lost */
lifeline = ORTE_PROC_MY_HNP;
}
ORTE_PROC_MY_PARENT->jobid = ORTE_PROC_MY_NAME->jobid;
} else if (ORTE_PROC_IS_APP) {
/* if we don't have a designated daemon, just
* disqualify ourselves */
if (NULL == orte_process_info.my_daemon_uri) {
return ORTE_ERR_TAKE_NEXT_OPTION;
}
/* set our lifeline to the local daemon - we will abort if this connection is lost */
lifeline = ORTE_PROC_MY_DAEMON;
orte_routing_is_enabled = true;
}
/* setup the list of children */
OBJ_CONSTRUCT(&my_children, opal_list_t);
num_children = 0;
return ORTE_SUCCESS;
}
static int finalize(void)
{
opal_list_item_t *item;
lifeline = NULL;
/* deconstruct the list of children */
while (NULL != (item = opal_list_remove_first(&my_children))) {
OBJ_RELEASE(item);
}
OBJ_DESTRUCT(&my_children);
num_children = 0;
return ORTE_SUCCESS;
}
static int delete_route(orte_process_name_t *proc)
{
if (proc->jobid == ORTE_JOBID_INVALID ||
proc->vpid == ORTE_VPID_INVALID) {
return ORTE_ERR_BAD_PARAM;
}
/* if I am an application process, I don't have any routes
* so there is nothing for me to do
*/
if (!ORTE_PROC_IS_HNP && !ORTE_PROC_IS_DAEMON &&
!ORTE_PROC_IS_TOOL) {
return ORTE_SUCCESS;
}
OPAL_OUTPUT_VERBOSE((1, orte_routed_base_framework.framework_output,
"%s routed_radix_delete_route for %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(proc)));
/* THIS CAME FROM OUR OWN JOB FAMILY...there is nothing
* to do here. The routes will be redefined when we update
* the routing tree
*/
return ORTE_SUCCESS;
}
static int update_route(orte_process_name_t *target,
orte_process_name_t *route)
{
if (target->jobid == ORTE_JOBID_INVALID ||
target->vpid == ORTE_VPID_INVALID) {
return ORTE_ERR_BAD_PARAM;
}
/* if I am an application process, we don't update the route since
* we automatically route everything through the local daemon
*/
if (ORTE_PROC_IS_APP) {
return ORTE_SUCCESS;
}
OPAL_OUTPUT_VERBOSE((1, orte_routed_base_framework.framework_output,
"%s routed_radix_update: %s --> %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(target),
ORTE_NAME_PRINT(route)));
/* if I am a daemon and the target is my HNP, then check
* the route - if it isn't direct, then we just flag that
* we have a route to the HNP
*/
if (OPAL_EQUAL == orte_util_compare_name_fields(ORTE_NS_CMP_ALL, ORTE_PROC_MY_HNP, target) &&
OPAL_EQUAL != orte_util_compare_name_fields(ORTE_NS_CMP_ALL, ORTE_PROC_MY_HNP, route)) {
hnp_direct = false;
return ORTE_SUCCESS;
}
return ORTE_SUCCESS;
}
static orte_process_name_t get_route(orte_process_name_t *target)
{
orte_process_name_t *ret, daemon;
opal_list_item_t *item;
orte_routed_tree_t *child;
if (!orte_routing_is_enabled) {
ret = target;
goto found;
}
/* initialize */
daemon.jobid = ORTE_PROC_MY_DAEMON->jobid;
daemon.vpid = ORTE_PROC_MY_DAEMON->vpid;
if (target->jobid == ORTE_JOBID_INVALID ||
target->vpid == ORTE_VPID_INVALID) {
ret = ORTE_NAME_INVALID;
goto found;
}
/* if it is me, then the route is just direct */
if (OPAL_EQUAL == opal_dss.compare(ORTE_PROC_MY_NAME, target, ORTE_NAME)) {
ret = target;
goto found;
}
/* if I am an application process, always route via my local daemon */
if (ORTE_PROC_IS_APP) {
ret = ORTE_PROC_MY_DAEMON;
goto found;
}
/* if I am a tool, the route is direct if target is in
* my own job family, and to the target's HNP if not
*/
if (ORTE_PROC_IS_TOOL) {
if (ORTE_JOB_FAMILY(target->jobid) == ORTE_JOB_FAMILY(ORTE_PROC_MY_NAME->jobid)) {
ret = target;
goto found;
} else {
ORTE_HNP_NAME_FROM_JOB(&daemon, target->jobid);
ret = &daemon;
goto found;
}
}
/****** HNP AND DAEMONS ONLY ******/
/* if this is going to the HNP, then send it direct if we don't know
* how to get there - otherwise, send it via the tree
*/
if (OPAL_EQUAL == orte_util_compare_name_fields(ORTE_NS_CMP_ALL, ORTE_PROC_MY_HNP, target)) {
if (!hnp_direct || orte_static_ports) {
OPAL_OUTPUT_VERBOSE((2, orte_routed_base_framework.framework_output,
"%s routing to the HNP through my parent %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(ORTE_PROC_MY_PARENT)));
ret = ORTE_PROC_MY_PARENT;
goto found;
} else {
OPAL_OUTPUT_VERBOSE((2, orte_routed_base_framework.framework_output,
"%s routing direct to the HNP",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME)));
ret = ORTE_PROC_MY_HNP;
goto found;
}
}
/* if the jobid is different than our own, then this the target
* is a tool and we should go direct */
if (ORTE_JOB_FAMILY(target->jobid) != ORTE_JOB_FAMILY(ORTE_PROC_MY_NAME->jobid)) {
ret = target;
goto found;
}
daemon.jobid = ORTE_PROC_MY_NAME->jobid;
/* find out what daemon hosts this proc */
if (ORTE_VPID_INVALID == (daemon.vpid = orte_get_proc_daemon_vpid(target))) {
ORTE_ERROR_LOG(ORTE_ERR_NOT_FOUND);
ret = ORTE_NAME_INVALID;
goto found;
}
/* if the daemon is me, then send direct to the target! */
if (ORTE_PROC_MY_NAME->vpid == daemon.vpid) {
ret = target;
goto found;
} else {
/* search routing tree for next step to that daemon */
for (item = opal_list_get_first(&my_children);
item != opal_list_get_end(&my_children);
item = opal_list_get_next(item)) {
child = (orte_routed_tree_t*)item;
if (child->vpid == daemon.vpid) {
/* the child is hosting the proc - just send it there */
ret = &daemon;
goto found;
}
/* otherwise, see if the daemon we need is below the child */
if (opal_bitmap_is_set_bit(&child->relatives, daemon.vpid)) {
/* yep - we need to step through this child */
daemon.vpid = child->vpid;
ret = &daemon;
goto found;
}
}
}
/* if we get here, then the target daemon is not beneath
* any of our children, so we have to step up through our parent
*/
daemon.vpid = ORTE_PROC_MY_PARENT->vpid;
ret = &daemon;
found:
OPAL_OUTPUT_VERBOSE((1, orte_routed_base_framework.framework_output,
"%s routed_radix_get(%s) --> %s",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(target),
ORTE_NAME_PRINT(ret)));
return *ret;
}
static int route_lost(const orte_process_name_t *route)
{
opal_list_item_t *item;
orte_routed_tree_t *child;
OPAL_OUTPUT_VERBOSE((2, orte_routed_base_framework.framework_output,
"%s route to %s lost",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(route)));
/* if we lose the connection to the lifeline and we are NOT already,
* in finalize, tell the OOB to abort.
* NOTE: we cannot call abort from here as the OOB needs to first
* release a thread-lock - otherwise, we will hang!!
*/
if (!orte_finalizing &&
NULL != lifeline &&
OPAL_EQUAL == orte_util_compare_name_fields(ORTE_NS_CMP_ALL, route, lifeline)) {
OPAL_OUTPUT_VERBOSE((2, orte_routed_base_framework.framework_output,
"%s routed:radix: Connection to lifeline %s lost",
ORTE_NAME_PRINT(ORTE_PROC_MY_NAME),
ORTE_NAME_PRINT(lifeline)));
return ORTE_ERR_FATAL;
}
/* if we are the HNP or daemon, and the route is a daemon,
* see if it is one of our children - if so, remove it
*/
if ((ORTE_PROC_IS_DAEMON || ORTE_PROC_IS_HNP) &&
route->jobid == ORTE_PROC_MY_NAME->jobid) {
for (item = opal_list_get_first(&my_children);
item != opal_list_get_end(&my_children);
item = opal_list_get_next(item)) {
child = (orte_routed_tree_t*)item;
if (child->vpid == route->vpid) {
opal_list_remove_item(&my_children, item);
OBJ_RELEASE(item);
return ORTE_SUCCESS;
}
}
}
/* we don't care about this one, so return success */
return ORTE_SUCCESS;
}
static bool route_is_defined(const orte_process_name_t *target)
{
/* find out what daemon hosts this proc */
if (ORTE_VPID_INVALID == orte_get_proc_daemon_vpid((orte_process_name_t*)target)) {
return false;
}
return true;
}
static int set_lifeline(orte_process_name_t *proc)
{
/* we have to copy the proc data because there is no
* guarantee that it will be preserved
*/
local_lifeline.jobid = proc->jobid;
local_lifeline.vpid = proc->vpid;
lifeline = &local_lifeline;
return ORTE_SUCCESS;
}
static void radix_tree(int rank, int *num_children,
opal_list_t *children, opal_bitmap_t *relatives)
{
int i, peer, Sum, NInLevel;
orte_routed_tree_t *child;
opal_bitmap_t *relations;
/* compute how many procs are at my level */
Sum=1;
NInLevel=1;
while ( Sum < (rank+1) ) {
NInLevel *= mca_routed_radix_component.radix;
Sum += NInLevel;
}
/* our children start at our rank + num_in_level */
peer = rank + NInLevel;
for (i = 0; i < mca_routed_radix_component.radix; i++) {
if (peer < (int)orte_process_info.num_procs) {
child = OBJ_NEW(orte_routed_tree_t);
child->vpid = peer;
if (NULL != children) {
/* this is a direct child - add it to my list */
opal_list_append(children, &child->super);
(*num_children)++;
/* setup the relatives bitmap */
opal_bitmap_init(&child->relatives, orte_process_info.num_procs);
/* point to the relatives */
relations = &child->relatives;
} else {
/* we are recording someone's relatives - set the bit */
if (OPAL_SUCCESS != opal_bitmap_set_bit(relatives, peer)) {
opal_output(0, "%s Error: could not set relations bit!", ORTE_NAME_PRINT(ORTE_PROC_MY_NAME));
}
/* point to this relations */
relations = relatives;
OBJ_RELEASE(child);
}
/* search for this child's relatives */
radix_tree(peer, NULL, NULL, relations);
}
peer += NInLevel;
}
}
static void update_routing_plan(void)
{
orte_routed_tree_t *child;
int j;
opal_list_item_t *item;
int Level,Sum,NInLevel,Ii;
int NInPrevLevel;
/* if I am anything other than a daemon or the HNP, this
* is a meaningless command as I am not allowed to route
*/
if (!ORTE_PROC_IS_DAEMON && !ORTE_PROC_IS_HNP) {
return;
}
/* clear the list of children if any are already present */
while (NULL != (item = opal_list_remove_first(&my_children))) {
OBJ_RELEASE(item);
}
num_children = 0;
/* compute my parent */
Ii = ORTE_PROC_MY_NAME->vpid;
Level=0;
Sum=1;
NInLevel=1;
while ( Sum < (Ii+1) ) {
Level++;
NInLevel *= mca_routed_radix_component.radix;
Sum += NInLevel;
}
Sum -= NInLevel;
NInPrevLevel = NInLevel/mca_routed_radix_component.radix;
if( 0 == Ii ) {
ORTE_PROC_MY_PARENT->vpid = -1;
} else {
ORTE_PROC_MY_PARENT->vpid = (Ii-Sum) % NInPrevLevel;
ORTE_PROC_MY_PARENT->vpid += (Sum - NInPrevLevel);
}
/* compute my direct children and the bitmap that shows which vpids
* lie underneath their branch
*/
radix_tree(Ii, &num_children, &my_children, NULL);
if (0 < opal_output_get_verbosity(orte_routed_base_framework.framework_output)) {
opal_output(0, "%s: parent %d num_children %d", ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), ORTE_PROC_MY_PARENT->vpid, num_children);
for (item = opal_list_get_first(&my_children);
item != opal_list_get_end(&my_children);
item = opal_list_get_next(item)) {
child = (orte_routed_tree_t*)item;
opal_output(0, "%s: \tchild %d", ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), child->vpid);
for (j=0; j < (int)orte_process_info.num_procs; j++) {
if (opal_bitmap_is_set_bit(&child->relatives, j)) {
opal_output(0, "%s: \t\trelation %d", ORTE_NAME_PRINT(ORTE_PROC_MY_NAME), j);
}
}
}
}
}
static void get_routing_list(opal_list_t *coll)
{
/* if I am anything other than a daemon or the HNP, this
* is a meaningless command as I am not allowed to route
*/
if (!ORTE_PROC_IS_DAEMON && !ORTE_PROC_IS_HNP) {
return;
}
orte_routed_base_xcast_routing(coll, &my_children);
}
static size_t num_routes(void)
{
return opal_list_get_size(&my_children);
}
#if OPAL_ENABLE_FT_CR == 1
static int radix_ft_event(int state)
{
int ret, exit_status = ORTE_SUCCESS;
/******** Checkpoint Prep ********/
if(OPAL_CRS_CHECKPOINT == state) {
}
/******** Continue Recovery ********/
else if (OPAL_CRS_CONTINUE == state ) {
}
else if (OPAL_CRS_TERM == state ) {
/* Nothing */
}
else {
/* Error state = Nothing */
}
cleanup:
return exit_status;
}
#endif