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pmix/pmix3x: Fix internal PMIx discovery logic.#8832

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jsquyres merged 2 commits intoopen-mpi:v4.1.xfrom
artpol84:topic/v4.1.x/fix_pmix_detection
Apr 22, 2021
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pmix/pmix3x: Fix internal PMIx discovery logic.#8832
jsquyres merged 2 commits intoopen-mpi:v4.1.xfrom
artpol84:topic/v4.1.x/fix_pmix_detection

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@artpol84 artpol84 commented Apr 20, 2021 •
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See #8823 for the details.

bot:notacherrypick

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artpol84 commented Apr 20, 2021

The fixes for other branches will follow.

@artpol84 artpol84 requested review from hppritcha and rhc54 April 20, 2021 18:50
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artpol84 commented Apr 20, 2021

I'm waiting for the guys from LANL to confirm that this is fixing their problem (should be later today).
Once I'll hear from them, I'll remove the "WIP" label and open PRs to other branches.

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artpol84 commented Apr 20, 2021

@rhc54 what is "PMIX_ID" and do we want to still check against it?

@artpol84 artpol84 force-pushed the topic/v4.1.x/fix_pmix_detection branch 2 times, most recently from 8a14505 to 52c8340 Compare April 20, 2021 19:02
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rhc54 commented Apr 20, 2021

@rhc54 what is "PMIX_ID" and do we want to still check against it?

I have no idea - it isn't even something we deprecated. I'd remove it.

@artpol84 artpol84 force-pushed the topic/v4.1.x/fix_pmix_detection branch from 52c8340 to cc45161 Compare April 20, 2021 22:03
artpol84 added 2 commits April 20, 2021 15:03
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pmix/pmix3x: Fix internal PMIx discovery logic.
0b3c1d9 
See open-mpi#8823 for the details.

Signed-off-by: Artem Polyakov <artpol84@gmail.com>
@artpol84
pmix: Fix detection of Externally-built PMIx
2210251 
See open-mpi#8823 for more details.

Signed-off-by: Artem Polyakov <artpol84@gmail.com>
@artpol84 artpol84 force-pushed the topic/v4.1.x/fix_pmix_detection branch from cc45161 to 2210251 Compare April 20, 2021 22:04
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artpol84 commented Apr 20, 2021

Just got the confirmation that on the system where the problem was observed this indeed fixes the issue:

$> OMPI_MCA_pmix_base_verbose=100 srun -n 2 --mpi=pmix_v3 ./a.out
...
[sn001.localdomain:35359] mca:base:select: Auto-selecting pmix components
[sn001.localdomain:35359] mca:base:select:( pmix) Querying component [isolated]
[sn001.localdomain:35359] mca:base:select:( pmix) Query of component [isolated] set priority to 0
[sn001.localdomain:35359] mca:base:select:( pmix) Querying component [pmix3x]
[sn001.localdomain:35359] mca:base:select:( pmix) Query of component [pmix3x] set priority to 100
[sn001.localdomain:35359] mca:base:select:( pmix) Querying component [s1]
[sn001.localdomain:35359] mca:base:select:( pmix) Query of component [s1] set priority to 10
[sn001.localdomain:35359] mca:base:select:( pmix) Querying component [s2]
[sn001.localdomain:35359] mca:base:select:( pmix) Selected component [pmix3x]
...

@artpol84 artpol84 added this to the v4.1.1 milestone Apr 20, 2021
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ibm-ompi commented Apr 20, 2021

The IBM CI (PGI) build failed! Please review the log, linked below.

Gist: https://gist.github.com/ibm-ompi/88b480fb98dfd2bdac939f023e1f8fe6

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jsquyres commented Apr 20, 2021

Which release branches is this PR relevant to?

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artpol84 commented Apr 20, 2021

I think all of them

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artpol84 commented Apr 20, 2021

I'm going to create PRs to 4.x and 3.x branches

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artpol84 commented Apr 20, 2021

@jjhursey @gpaulsen please help with IBM failure

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jsquyres commented Apr 20, 2021

Ok. After this PR is merged, can you cherry-pick to all relevant release branches? Thanks.

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artpol84 commented Apr 20, 2021

@jsquyres already opened.
I guess we don't want to go as far as v2.x, right?

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jsquyres commented Apr 20, 2021

@jsquyres already opened.
I guess we don't want to go as far as v2.x, right?

Correct.

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jjhursey commented Apr 21, 2021

bot:ibm:pgi:retest

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jsquyres commented Apr 21, 2021

/azp run

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azure-pipelines bot commented Apr 21, 2021

Azure Pipelines successfully started running 1 pipeline(s).

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artpol84 commented Apr 22, 2021

bot:mellanox:retest

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artpol84 commented Apr 22, 2021

bot:mellanox:retest

@jsquyres jsquyres merged commit 6ce9b9d into open-mpi:v4.1.x Apr 22, 2021
@it-is-a-robot it-is-a-robot mentioned this pull request Nov 30, 2021
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