int mca_spml_yoda_enable(bool enable)
{
SPML_VERBOSE(50, "*** yoda ENABLED ****");
if (false == enable) {
return OSHMEM_SUCCESS;
}
OBJ_CONSTRUCT(&mca_spml_yoda.lock, opal_mutex_t);
/**
*If we get here this is the SPML who get selected for the run. We
* should get ownership for the put and get requests list, and
* initialize them with the size of our own requests.
*/
opal_free_list_init (&mca_spml_base_put_requests,
sizeof(mca_spml_yoda_put_request_t),
opal_cache_line_size,
OBJ_CLASS(mca_spml_yoda_put_request_t),
0,
opal_cache_line_size,
mca_spml_yoda.free_list_num,
mca_spml_yoda.free_list_max,
mca_spml_yoda.free_list_inc,
NULL, 0, NULL, NULL, NULL);
opal_free_list_init (&mca_spml_base_get_requests,
sizeof(mca_spml_yoda_get_request_t),
opal_cache_line_size,
OBJ_CLASS(mca_spml_yoda_get_request_t),
0,
opal_cache_line_size,
mca_spml_yoda.free_list_num,
mca_spml_yoda.free_list_max,
mca_spml_yoda.free_list_inc,
NULL, 0, NULL, NULL, NULL);
mca_spml_yoda.enabled = true;
/* The following line resolves the issue with BTL tcp and SPML yoda. In this case the
* atomic_basic_lock(root_rank) function may behave as DoS attack on root_rank, since
* all the procceses will do shmem_int_get from root_rank. These calls would go through
* bml active messaging and will trigger replays in libevent on root rank. If the flag
* OPAL_ENVLOOP_ONCE is not set then libevent will continously progress constantly
* incoming events thus causing root_rank to stuck in libevent loop.
*/
opal_progress_set_event_flag(OPAL_EVLOOP_NONBLOCK | OPAL_EVLOOP_ONCE);
#if OSHMEM_WAIT_COMPLETION_DEBUG == 1
condition_dbg_init();
#endif
return OSHMEM_SUCCESS;
}
int mca_spml_yoda_enable(bool enable)
{
SPML_VERBOSE(50, "*** yoda ENABLED ****");
if (false == enable) {
return OSHMEM_SUCCESS;
}
OBJ_CONSTRUCT(&mca_spml_yoda.lock, opal_mutex_t);
/**
*If we get here this is the SPML who get selected for the run. We
* should get ownership for the put and get requests list, and
* initialize them with the size of our own requests.
*/
ompi_free_list_init_new(&mca_spml_base_put_requests,
sizeof(mca_spml_yoda_put_request_t),
opal_cache_line_size,
OBJ_CLASS(mca_spml_yoda_put_request_t),
0,
opal_cache_line_size,
mca_spml_yoda.free_list_num,
mca_spml_yoda.free_list_max,
mca_spml_yoda.free_list_inc,
NULL );
ompi_free_list_init_new(&mca_spml_base_get_requests,
sizeof(mca_spml_yoda_get_request_t),
opal_cache_line_size,
OBJ_CLASS(mca_spml_yoda_get_request_t),
0,
opal_cache_line_size,
mca_spml_yoda.free_list_num,
mca_spml_yoda.free_list_max,
mca_spml_yoda.free_list_inc,
NULL );
mca_spml_yoda.enabled = true;
#if OSHMEM_WAIT_COMPLETION_DEBUG == 1
condition_dbg_init();
#endif
return OSHMEM_SUCCESS;
}
