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* Make the RMS pcm thread safe and enable user threads for the component

- move the list management code into one set of functions that can be
    locked / unlocked as needed
  - clean up some stupidity in code

This commit was SVN r2594.
Этот коммит содержится в:
Brian Barrett 2004-09-10 15:57:53 +00:00
родитель c2d7fab259
Коммит 7557ef7484
5 изменённых файлов: 291 добавлений и 165 удалений

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@ -9,7 +9,8 @@ include $(top_ompi_srcdir)/config/Makefile.options
sources = \
pcm_rms.h \
pcm_rms.c \
pcm_rms_component.c
pcm_rms_component.c \
pcm_rms_job_list.c
# Make the output library in this directory, and name it either
# mca_<type>_<name>.la (for DSO builds) or libmca_<type>_<name>.la

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@ -23,106 +23,6 @@
#include "util/numtostr.h"
static mca_pcm_rms_job_item_t *
get_job_item(mca_ns_base_jobid_t jobid)
{
ompi_list_item_t *item;
for (item = ompi_list_get_first(&mca_pcm_rms_jobs) ;
item != ompi_list_get_end(&mca_pcm_rms_jobs) ;
item = ompi_list_get_next(item) ) {
mca_pcm_rms_job_item_t *job_item = (mca_pcm_rms_job_item_t*) item;
if (job_item->jobid == jobid) return job_item;
}
return NULL;
}
static mca_pcm_rms_pids_t *
get_pids_entry(mca_pcm_rms_job_item_t *job_item, mca_ns_base_vpid_t vpid)
{
ompi_list_item_t *item;
for (item = ompi_list_get_first(job_item->pids) ;
item != ompi_list_get_end(job_item->pids) ;
item = ompi_list_get_next(item) ) {
mca_pcm_rms_pids_t *pids = (mca_pcm_rms_pids_t*) item;
if (pids->lower < vpid && pids->upper > vpid) {
return pids;
}
}
return NULL;
}
static int
add_started_pids(mca_ns_base_jobid_t jobid, pid_t child_pid,
mca_ns_base_vpid_t lower, mca_ns_base_vpid_t upper)
{
mca_pcm_rms_job_item_t *job_item;
mca_pcm_rms_pids_t *pids;
job_item = get_job_item(jobid);
if (NULL == job_item) {
job_item = OBJ_NEW(mca_pcm_rms_job_item_t);
if (NULL == job_item) return OMPI_ERROR;
job_item->jobid = jobid;
}
pids = OBJ_NEW(mca_pcm_rms_pids_t);
if (NULL == pids) return OMPI_ERROR;
pids->lower = lower;
pids->upper = upper;
pids->child = child_pid;
ompi_list_append(job_item->pids, (ompi_list_item_t*) pids);
return OMPI_SUCCESS;
}
static pid_t
get_started_pid(mca_ns_base_jobid_t jobid, mca_ns_base_vpid_t vpid)
{
mca_pcm_rms_job_item_t *job_item;
mca_pcm_rms_pids_t *pids;
job_item = get_job_item(jobid);
if (NULL == job_item) return -1;
pids = get_pids_entry(job_item, vpid);
if (NULL == pids) return -1;
return pids->child;
}
static int
remove_started_pid(pid_t pid)
{
ompi_list_item_t *job_item, *pid_item;
/* ugh, this is going to suck as an operation */
for (job_item = ompi_list_get_first(&mca_pcm_rms_jobs) ;
job_item != ompi_list_get_end(&mca_pcm_rms_jobs) ;
job_item = ompi_list_get_next(job_item)) {
mca_pcm_rms_job_item_t *job = (mca_pcm_rms_job_item_t*) job_item;
for (pid_item = ompi_list_get_first(job->pids) ;
pid_item != ompi_list_get_end(job->pids) ;
pid_item = ompi_list_get_next(pid_item) ) {
mca_pcm_rms_pids_t *pid_ent = (mca_pcm_rms_pids_t*) pid_item;
if (pid_ent->child == pid) {
/* we have a winner! */
ompi_list_remove_item(job->pids, pid_item);
return OMPI_SUCCESS;
}
}
}
return OMPI_ERROR;
}
/* ok, this is fairly simple in the RMS world */
ompi_list_t *
@ -264,10 +164,10 @@ mca_pcm_rms_spawn_procs(struct mca_pcm_base_module_1_0_0_t* me,
}
/* ok, I'm the parent - stick the pids where they belong */
ret = add_started_pids(jobid, child, nodes->start,
nodes->start + (nodes->nodes == 0) ?
nodes->count :
nodes->nodes * nodes->count);
ret = mca_pcm_rms_add_started_pids(jobid, child, nodes->start,
nodes->start + (nodes->nodes == 0) ?
nodes->count :
nodes->nodes * nodes->count);
if (OMPI_SUCCESS != ret) {
/* BWB show_help */
printf("show_help: unable to record child pid\n");
@ -282,21 +182,16 @@ int
mca_pcm_rms_kill_proc(struct mca_pcm_base_module_1_0_0_t* me,
ompi_process_name_t *name, int flags)
{
mca_pcm_rms_job_item_t *job = get_job_item(ns_base_get_jobid(name));
pid_t doomed;
doomed = get_started_pid(ns_base_get_jobid(name), ns_base_get_vpid(name));
doomed = mca_pcm_rms_get_started_pid(ns_base_get_jobid(name),
ns_base_get_vpid(name), true);
if (doomed > 0) {
kill(doomed, SIGTERM);
remove_started_pid(doomed);
} else {
return OMPI_ERROR;
}
if (0 == ompi_list_get_size((ompi_list_t*) job->pids)) {
ompi_list_remove_item(&mca_pcm_rms_jobs, (ompi_list_item_t*) job);
}
return OMPI_SUCCESS;
}
@ -305,21 +200,21 @@ int
mca_pcm_rms_kill_job(struct mca_pcm_base_module_1_0_0_t* me,
mca_ns_base_jobid_t jobid, int flags)
{
mca_pcm_rms_job_item_t *job = get_job_item(jobid);
ompi_list_item_t *item;
pid_t *doomed;
size_t doomed_len;
int ret, i;
if (job == NULL) return OMPI_ERROR;
ret = mca_pcm_rms_get_started_pid_list(jobid, &doomed, &doomed_len, true);
if (OMPI_SUCCESS != ret) return ret;
for (item = ompi_list_get_first(job->pids) ;
item != ompi_list_get_end(job->pids) ;
item = ompi_list_get_next(job->pids) ) {
mca_pcm_rms_pids_t *pid = (mca_pcm_rms_pids_t*) item;
if (pid->child > 0) kill(pid->child, SIGTERM);
ompi_list_remove_item(job->pids, item);
for (i = 0 ; i < doomed_len ; ++i) {
kill(doomed[i], SIGTERM);
}
if (NULL != doomed) {
free(doomed);
}
ompi_list_remove_item(&mca_pcm_rms_jobs, (ompi_list_item_t*) job);
return OMPI_SUCCESS;
}
@ -329,14 +224,9 @@ mca_pcm_rms_deallocate_resources(struct mca_pcm_base_module_1_0_0_t* me,
mca_ns_base_jobid_t jobid,
ompi_list_t *nodelist)
{
mca_pcm_rms_job_item_t *job;
if (nodelist != NULL) OBJ_RELEASE(nodelist);
job = get_job_item(jobid);
if (NULL != job) {
ompi_list_remove_item(&mca_pcm_rms_jobs, (ompi_list_item_t*) job);
}
mca_pcm_rms_remove_job(jobid);
return OMPI_SUCCESS;
}

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@ -51,6 +51,20 @@ extern "C" {
mca_ns_base_jobid_t jobid,
ompi_list_t *nodelist);
/*
* Job management code
*/
void mca_pcm_rms_job_list_init(void);
void mca_pcm_rms_job_list_fini(void);
int mca_pcm_rms_add_started_pids(mca_ns_base_jobid_t jobid, pid_t child_pid,
mca_ns_base_vpid_t lower, mca_ns_base_vpid_t upper);
pid_t mca_pcm_rms_get_started_pid(mca_ns_base_jobid_t jobid, mca_ns_base_vpid_t vpid,
bool remove_started_pid);
int mca_pcm_rms_get_started_pid_list(mca_ns_base_jobid_t jobid, pid_t **pids, size_t *len,
bool remove_started_pids);
int mca_pcm_rms_remove_job(mca_ns_base_jobid_t jobid);
struct mca_pcm_rms_pids_t {
ompi_list_item_t super;
mca_ns_base_vpid_t lower;

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@ -87,7 +87,6 @@ static int mca_pcm_rms_param_use_ns;
* instances, so they don't need to go in a special structure or
* anything.
*/
ompi_list_t mca_pcm_rms_jobs;
int mca_pcm_rms_output = 0;
int mca_pcm_rms_use_ns;
@ -103,7 +102,7 @@ mca_pcm_rms_component_open(void)
mca_pcm_rms_param_use_ns =
mca_base_param_register_int("pcm", "rms", "use_ns", NULL, 0);
OBJ_CONSTRUCT(&mca_pcm_rms_jobs, ompi_list_t);
mca_pcm_rms_job_list_init();
return OMPI_SUCCESS;
}
@ -112,7 +111,7 @@ mca_pcm_rms_component_open(void)
int
mca_pcm_rms_component_close(void)
{
OBJ_DESTRUCT(&mca_pcm_rms_jobs);
mca_pcm_rms_job_list_fini();
return OMPI_SUCCESS;
}
@ -135,7 +134,7 @@ mca_pcm_rms_init(int *priority,
mca_base_param_lookup_int(mca_pcm_rms_param_use_ns, &mca_pcm_rms_use_ns);
*allow_multi_user_threads = false;
*allow_multi_user_threads = true;
*have_hidden_threads = false;
/* poke around for prun */
@ -157,35 +156,3 @@ mca_pcm_rms_finalize(struct mca_pcm_base_module_1_0_0_t* me)
return OMPI_SUCCESS;
}
static
void
mca_pcm_rms_job_item_construct(ompi_object_t *obj)
{
mca_pcm_rms_job_item_t *data = (mca_pcm_rms_job_item_t*) obj;
data->pids = OBJ_NEW(ompi_list_t);
}
static
void
mca_pcm_rms_job_item_destruct(ompi_object_t *obj)
{
mca_pcm_rms_job_item_t *data = (mca_pcm_rms_job_item_t*) obj;
if (data->pids != NULL) {
ompi_list_item_t *item;
while (NULL != (item = ompi_list_remove_first(data->pids))) {
OBJ_RELEASE(item);
}
OBJ_RELEASE(data->pids);
}
}
OBJ_CLASS_INSTANCE(mca_pcm_rms_job_item_t,
ompi_list_item_t,
mca_pcm_rms_job_item_construct,
mca_pcm_rms_job_item_destruct);
OBJ_CLASS_INSTANCE(mca_pcm_rms_pids_t,
ompi_list_item_t,
NULL, NULL);

254
src/mca/pcm/rms/pcm_rms_job_list.c Обычный файл
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@ -0,0 +1,254 @@
/* -*- C -*-
*
* $HEADER$
*
*/
#include "ompi_config.h"
#include "include/constants.h"
#include "class/ompi_list.h"
#include "mca/pcm/rms/pcm_rms.h"
#include "threads/mutex.h"
/*
* This is a component-level structure (ie - shared among instances)
*/
static ompi_list_t rms_jobs;
static ompi_mutex_t rms_jobs_mutex;
void
mca_pcm_rms_job_list_init(void)
{
OBJ_CONSTRUCT(&rms_jobs_mutex, ompi_mutex_t);
OBJ_CONSTRUCT(&rms_jobs, ompi_list_t);
}
void
mca_pcm_rms_job_list_fini(void)
{
OBJ_DESTRUCT(&rms_jobs);
OBJ_DESTRUCT(&rms_jobs_mutex);
}
/*
* internal functions - no locking
*/
static mca_pcm_rms_job_item_t *
get_job_item(mca_ns_base_jobid_t jobid)
{
ompi_list_item_t *item;
for (item = ompi_list_get_first(&mca_pcm_rms_jobs) ;
item != ompi_list_get_end(&mca_pcm_rms_jobs) ;
item = ompi_list_get_next(item) ) {
mca_pcm_rms_job_item_t *job_item = (mca_pcm_rms_job_item_t*) item;
if (job_item->jobid == jobid) return job_item;
}
return NULL;
}
static mca_pcm_rms_pids_t *
get_pids_entry(mca_pcm_rms_job_item_t *job_item, mca_ns_base_vpid_t vpid)
{
ompi_list_item_t *item;
for (item = ompi_list_get_first(job_item->pids) ;
item != ompi_list_get_end(job_item->pids) ;
item = ompi_list_get_next(item) ) {
mca_pcm_rms_pids_t *pids = (mca_pcm_rms_pids_t*) item;
if (pids->lower < vpid && pids->upper > vpid) {
return pids;
}
}
return NULL;
}
/*
* Public functions - locked at top (should not call each other)
*/
int
mca_pcm_rms_add_started_pids(mca_ns_base_jobid_t jobid, pid_t child_pid,
mca_ns_base_vpid_t lower, mca_ns_base_vpid_t upper)
{
int ret = OMPI_SUCCESS;
mca_pcm_rms_job_item_t *job_item;
mca_pcm_rms_pids_t *pids;
OMPI_LOCK(&rms_jobs_mutex);
job_item = get_job_item(jobid);
if (NULL == job_item) {
job_item = OBJ_NEW(mca_pcm_rms_job_item_t);
if (NULL == job_item) {
ret = OMPI_ERROR;
goto finished;
}
job_item->jobid = jobid;
}
pids = OBJ_NEW(mca_pcm_rms_pids_t);
if (NULL == pids) {
ret = OMPI_ERROR;
goto finished;
}
pids->lower = lower;
pids->upper = upper;
pids->child = child_pid;
ompi_list_append(job_item->pids, (ompi_list_item_t*) pids);
ret = OMPI_SUCCESS;
finished:
OMPI_UNLOCK(&rms_jobs_mutex);
return ret;
}
pid_t
mca_pcm_rms_get_started_pid(mca_ns_base_jobid_t jobid, mca_ns_base_vpid_t vpid,
bool remove_started_pid)
{
pid_t ret = -1;
mca_pcm_rms_job_item_t *job_item;
mca_pcm_rms_pids_t *pids;
OMPI_LOCK(&rms_jobs_mutex);
job_item = get_job_item(jobid);
if (NULL == job_item) {
ret = -1;
goto finished;
}
pids = get_pids_entry(job_item, vpid);
if (NULL == pids) {
ret = -1;
goto finished;
}
ret = pids->child;
if (remove_started_pid) {
ompi_list_remove_item(job_item->pids, (ompi_list_item_t*) pids);
OBJ_RELEASE(pids);
if (0 == ompi_list_get_size(job_item->pids)) {
ompi_list_remove_item(&rms_jobs, (ompi_list_item_t*) job_item);
OBJ_RELEASE(job_item);
}
}
finished:
OMPI_UNLOCK(&rms_jobs_mutex);
return ret;
}
int
mca_pcm_rms_get_started_pid_list(mca_ns_base_jobid_t jobid, pid_t **pids, size_t *len,
bool remove_started_pids)
{
int ret = OMPI_SUCCESS;
mca_pcm_rms_job_item_t *job_item;
mca_pcm_rms_pids_t *pid_item;
ompi_list_item_t *item;
int i;
OMPI_LOCK(&rms_jobs_mutex);
job_item = get_job_item(jobid);
if (NULL == job_item) {
ret = OMPI_ERROR;
goto finished;
}
*len = ompi_list_get_size(job_item->pids);
if (0 == *len) {
*pids = NULL;
goto cleanup;
}
*pids = malloc(sizeof(pid_t*) * *len);
if (NULL == *pids) {
ret = OMPI_ERR_OUT_OF_RESOURCE;
goto finished;
}
for (item = ompi_list_get_first(job_item->pids), i = 0 ;
item != ompi_list_get_end(job_item->pids) ;
item = ompi_list_get_next(item), ++i) {
pid_item = (mca_pcm_rms_pids_t*) item;
(*pids)[i] = pid_item->child;
}
cleanup:
if (remove_started_pids) {
ompi_list_remove_item(&rms_jobs, (ompi_list_item_t*) job_item);
OBJ_RELEASE(job_item);
}
finished:
OMPI_UNLOCK(&rms_jobs_mutex);
return ret;
}
int
mca_pcm_rms_remove_job(mca_ns_base_jobid_t jobid)
{
int ret = OMPI_SUCCESS;
mca_pcm_rms_job_item_t *job_item;
OMPI_LOCK(&rms_jobs_mutex);
job_item = get_job_item(jobid);
if (NULL == job_item) {
ret = OMPI_ERROR;
goto finished;
}
ompi_list_remove_item(&rms_jobs, (ompi_list_item_t*) job_item);
finished:
OMPI_UNLOCK(&rms_jobs_mutex);
return ret;
}
static
void
mca_pcm_rms_job_item_construct(ompi_object_t *obj)
{
mca_pcm_rms_job_item_t *data = (mca_pcm_rms_job_item_t*) obj;
data->pids = OBJ_NEW(ompi_list_t);
}
static
void
mca_pcm_rms_job_item_destruct(ompi_object_t *obj)
{
mca_pcm_rms_job_item_t *data = (mca_pcm_rms_job_item_t*) obj;
if (data->pids != NULL) {
ompi_list_item_t *item;
while (NULL != (item = ompi_list_remove_first(data->pids))) {
OBJ_RELEASE(item);
}
OBJ_RELEASE(data->pids);
}
}
OBJ_CLASS_INSTANCE(mca_pcm_rms_job_item_t,
ompi_list_item_t,
mca_pcm_rms_job_item_construct,
mca_pcm_rms_job_item_destruct);
OBJ_CLASS_INSTANCE(mca_pcm_rms_pids_t,
ompi_list_item_t,
NULL, NULL);