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Set hierarchy constraints as default in Millepede #9714

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mschrode
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Backport of #9713

Previous problems were found to be due to numerical effects in
pede. These are solved in >=rev137, which uses 'elimination'
instead of lagrangian multipliers.
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A new Pull Request was created by @mschrode (Matthias Schroeder) for CMSSW_7_4_X.

Set hierarchy constraints as default in Millepede

It involves the following packages:

Alignment/CommonAlignmentAlgorithm

@cmsbuild, @mmusich, @diguida, @cerminar can you please review it and eventually sign? Thanks.
@ghellwig, @pakhotin, @frmeier, @mmusich, @tlampen this is something you requested to watch as well.
You can sign-off by replying to this message having '+1' in the first line of your reply.
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If you are a L2 or a release manager you can ask for tests by saying 'please test' in the first line of a comment.
@Degano you are the release manager for this.
You can merge this pull request by typing 'merge' in the first line of your comment.

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mmusich commented Jun 22, 2015

@cmsbuild please test

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The tests are being triggered in jenkins.

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mmusich commented Jan 26, 2016

-1 not for this release cycle anymore

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Pull request has been put on hold by @diguida
They need to issue an unhold command to remove the hold state or L1 can unhold it for all

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mmusich commented Feb 14, 2016

@diguida would you please unhold that one?
as far as I can tell we should have by now MP rev 148 in place for 74X: cms-sw/cmsdist#2108

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diguida commented Feb 14, 2016

unhold

@cmsbuild cmsbuild removed the hold label Feb 14, 2016
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mmusich commented Feb 14, 2016

+1

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This pull request is fully signed and it will be integrated in one of the next CMSSW_7_4_X IBs (tests are also fine) and once validation in the development release cycle CMSSW_7_6_X is complete. This pull request requires discussion in the ORP meeting before it's merged. @slava77, @davidlange6, @Degano, @smuzaffar

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diguida commented Feb 14, 2016

@mmusich thanks for the heads-up.
Indeed, this PR was put on hold as the first Pede revision with the hierarchy constraint fix, namely v140 --> V04-03-00 was included as external only for 76X (cms-sw/cmsdist#1648); 75X PR (cms-sw/cmsdist#1649) was closed at some point, while 74X was not considered at all. Now all 7XY cycles share the latest Pede.

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+1

cmsbuild added a commit that referenced this pull request Feb 23, 2016
Set hierarchy constraints as default in Millepede
@cmsbuild cmsbuild merged commit 3b4b252 into cms-sw:CMSSW_7_4_X Feb 23, 2016
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6 participants