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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2018 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
*
* Copyright (c) 2018 Sandia National Laboratories
* All rights reserved.
* Copyright (c) 2019 Triad National Security, LLC. All rights
* reserved.
*
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <string.h>
#include "pml_ob1.h"
#include "pml_ob1_comm.h"
static void mca_pml_ob1_comm_proc_construct(mca_pml_ob1_comm_proc_t* proc)
{
proc->ompi_proc = NULL;
proc->expected_sequence = 1;
proc->send_sequence = 0;
proc->frags_cant_match = NULL;
/* don't know the index of this communicator yet */
proc->comm_index = -1;
#if !MCA_PML_OB1_CUSTOM_MATCH
OBJ_CONSTRUCT(&proc->specific_receives, opal_list_t);
OBJ_CONSTRUCT(&proc->unexpected_frags, opal_list_t);
#endif
}
static void mca_pml_ob1_comm_proc_destruct(mca_pml_ob1_comm_proc_t* proc)
{
assert(NULL == proc->frags_cant_match);
#if !MCA_PML_OB1_CUSTOM_MATCH
OBJ_DESTRUCT(&proc->specific_receives);
OBJ_DESTRUCT(&proc->unexpected_frags);
#endif
if (proc->ompi_proc) {
OBJ_RELEASE(proc->ompi_proc);
}
}
OBJ_CLASS_INSTANCE(mca_pml_ob1_comm_proc_t, opal_object_t,
mca_pml_ob1_comm_proc_construct,
mca_pml_ob1_comm_proc_destruct);
static void mca_pml_ob1_comm_construct(mca_pml_ob1_comm_t* comm)
{
#if !MCA_PML_OB1_CUSTOM_MATCH
OBJ_CONSTRUCT(&comm->wild_receives, opal_list_t);
#else
comm->prq = custom_match_prq_init();
comm->umq = custom_match_umq_init();
#endif
OBJ_CONSTRUCT(&comm->matching_lock, opal_mutex_t);
OBJ_CONSTRUCT(&comm->proc_lock, opal_mutex_t);
comm->recv_sequence = 0;
comm->procs = NULL;
comm->last_probed = 0;
comm->num_procs = 0;
}
static void mca_pml_ob1_comm_destruct(mca_pml_ob1_comm_t* comm)
{
if (NULL != comm->procs) {
for (size_t i = 0; i < comm->num_procs; ++i) {
if (comm->procs[i]) {
OBJ_RELEASE(comm->procs[i]);
}
}
free ((void *) comm->procs);
}
#if !MCA_PML_OB1_CUSTOM_MATCH
OBJ_DESTRUCT(&comm->wild_receives);
#else
custom_match_prq_destroy(comm->prq);
custom_match_umq_destroy(comm->umq);
#endif
OBJ_DESTRUCT(&comm->matching_lock);
OBJ_DESTRUCT(&comm->proc_lock);
}
OBJ_CLASS_INSTANCE(
mca_pml_ob1_comm_t,
opal_object_t,
mca_pml_ob1_comm_construct,
mca_pml_ob1_comm_destruct);
int mca_pml_ob1_comm_init_size (mca_pml_ob1_comm_t* comm, size_t size)
{
/* send message sequence-number support - sender side */
comm->procs = (mca_pml_ob1_comm_proc_t **) calloc(size, sizeof (mca_pml_ob1_comm_proc_t *));
if(NULL == comm->procs) {
return OMPI_ERR_OUT_OF_RESOURCE;
}
comm->num_procs = size;
return OMPI_SUCCESS;
}
mca_pml_ob1_comm_proc_t *mca_pml_ob1_peer_create (ompi_communicator_t *comm, mca_pml_ob1_comm_t *pml_comm, int rank)
{
mca_pml_ob1_comm_proc_t *proc = OBJ_NEW(mca_pml_ob1_comm_proc_t);
uintptr_t old_proc = 0;
proc->ompi_proc = ompi_comm_peer_lookup (comm, rank);
if (OMPI_COMM_IS_GLOBAL_INDEX (comm)) {
/* the index is global so we can save it on the proc now */
proc->comm_index = comm->c_index;
}
OBJ_RETAIN(proc->ompi_proc);
/* make sure proc structure is filled in before adding it to the array */
opal_atomic_wmb ();
if (!OPAL_ATOMIC_COMPARE_EXCHANGE_STRONG_PTR((opal_atomic_intptr_t *) pml_comm->procs + rank, &old_proc,
(uintptr_t) proc)) {
/* proc was created by a competing thread. go ahead and throw this one away. */
OBJ_RELEASE(proc);
return (mca_pml_ob1_comm_proc_t *) old_proc;
}
return proc;
}
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