Skip to content

btl/openib: Disqualify rdmacm CPC if MPI_THREAD_MULTIPLE #1861

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Sep 27, 2016
Merged

btl/openib: Disqualify rdmacm CPC if MPI_THREAD_MULTIPLE #1861

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
11 changes: 11 additions & 0 deletions opal/mca/btl/openib/connect/btl_openib_connect_rdmacm.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,8 @@
#include "btl_openib_ip.h"
#include "btl_openib_ini.h"

#include "ompi/runtime/mpiruntime.h"

#if BTL_OPENIB_RDMACM_IB_ADDR
#include <stdio.h>
#include <netinet/in.h>
Expand Down Expand Up @@ -2000,6 +2002,15 @@ static int rdmacm_component_query(mca_btl_openib_module_t *openib_btl, opal_btl_
struct sockaddr_in sin;
#endif

/* RDMACM is not supported for MPI_THREAD_MULTIPLE */
if (opal_using_threads()) {
BTL_VERBOSE(("rdmacm CPC is not supported with MPI_THREAD_MULTIPLE; skipped on %s:%d",
ibv_get_device_name(openib_btl->device->ib_dev),
openib_btl->port_num));
rc = OPAL_ERR_NOT_SUPPORTED;
goto out;
}

/* RDMACM is not supported if we have any XRC QPs */
if (mca_btl_openib_component.num_xrc_qps > 0) {
BTL_VERBOSE(("rdmacm CPC not supported with XRC receive queues, please try xoob CPC; skipped on %s:%d",
Expand Down