Fedora 24 Update: pmix-1.1.3-1.fc24

updates at fedoraproject.org updates at fedoraproject.org
Sun Mar 27 01:01:38 UTC 2016


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Fedora Update Notification
FEDORA-2016-f3f274a278
2016-03-27 00:00:51.401412
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Name        : pmix
Product     : Fedora 24
Version     : 1.1.3
Release     : 1.fc24
URL         : https://www.open-mpi.org/projects/pmix/
Summary     : Exascale version of PMI
Description :
The Process Management Interface (PMI) has been used for quite some time as
a means of exchanging wireup information needed for interprocess
communication. Two versions (PMI-1 and PMI-2) have been released as part of
the MPICH effort. While PMI-2 demonstrates better scaling properties than its
PMI-1 predecessor, attaining rapid launch and wireup of the roughly 1M
processes executing across 100k nodes expected for exascale operations remains
challenging.

PMI Exascale (PMIx) represents an attempt to resolve these questions by
providing an extended version of the PMI standard specifically designed to
support clusters up to and including exascale sizes. The overall objective of
the project is not to branch the existing pseudo-standard definitions - in
fact, PMIx fully supports both of the existing PMI-1 and PMI-2 APIs - but
rather to (a) augment and extend those APIs to eliminate some current
restrictions that impact scalability, and (b) provide a reference
implementation of the PMI-server that demonstrates the desired level of
scalability.

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Update Information:

The Process Management Interface (PMI) has been used for quite some time as a
means of exchanging wireup information needed for interprocess communication.
Two versions (PMI-1 and PMI-2) have been released as part of the MPICH effort.
While PMI-2 demonstrates better scaling properties than its PMI-1 predecessor,
attaining rapid launch and wireup of the roughly 1M processes executing across
100k nodes expected for exascale operations remains challenging.  PMI Exascale
(PMIx) represents an attempt to resolve these questions by providing an extended
version of the PMI standard specifically designed to support clusters up to and
including exascale sizes. The overall objective of the project is not to branch
the existing pseudo-standard definitions - in fact, PMIx fully supports both of
the existing PMI-1 and PMI-2 APIs - but rather to (a) augment and extend those
APIs to eliminate some current restrictions that impact scalability, and (b)
provide a reference implementation of the PMI-server that demonstrates the
desired level of scalability.
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This update can be installed with the "yum" update program. Use
su -c 'yum update pmix' at the command line.
For more information, refer to "Managing Software with yum",
available at https://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora Project GPG key.  More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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