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Prevent the establishment of new BTL connections during matching#8534

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rajachan merged 1 commit intoopen-mpi:v4.1.xfrom
bwbarrett:backports/v4.1.x-pml-ack-on-send-btl
Feb 26, 2021
Merged

Prevent the establishment of new BTL connections during matching#8534
rajachan merged 1 commit intoopen-mpi:v4.1.xfrom
bwbarrett:backports/v4.1.x-pml-ack-on-send-btl

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handshake

Prevent a "deadlock" scenario, when one of the processes leave the
matching before the ack has been sent to the peer. Such a scenario has
been described by @bwbarrett in #8498.

Signed-off-by: George Bosilca bosilca@icl.utk.edu
(cherry picked from commit 916c29a)
Signed-off-by: Brian Barrett bbarrett@amazon.com

handshake

Prevent a "deadlock" scenario, when one of the processes leave the
matching before the ack has been sent to the peer. Such a scenario has
been described by @bwbarrett in open-mpi#8498.

Signed-off-by: George Bosilca <bosilca@icl.utk.edu>
(cherry picked from commit 916c29a)
Signed-off-by: Brian Barrett <bbarrett@amazon.com>
@bwbarrett bwbarrett requested a review from bosilca February 26, 2021 17:58
@rajachan rajachan added this to the v4.1.1 milestone Feb 26, 2021
@rajachan rajachan merged commit d78c1bc into open-mpi:v4.1.x Feb 26, 2021
@bwbarrett bwbarrett deleted the backports/v4.1.x-pml-ack-on-send-btl branch March 16, 2021 17:24
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3 participants