upgrade to lhapdf 6.2.1

[mkirsano]

No description provided.

[cmsbuild]

A new Pull Request was created by @mkirsano (Mikhail Kirsanov) for branch IB/CMSSW_9_4_X/gcc630.

@cmsbuild, @smuzaffar, @mrodozov can you please review it and eventually sign? Thanks.
You can sign-off by replying to this message having '+1' in the first line of your reply.
You can reject by replying to this message having '-1' in the first line of your reply.

[perrozzi]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/22959/console

[cmsbuild]

+1
Tested at: 1282c77
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-3415/22959/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-3415/22959/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 1220 differences found in the comparisons
• DQMHistoTests: Total files compared: 26
• DQMHistoTests: Total histograms compared: 2646524
• DQMHistoTests: Total failures: 11406
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2634929
• DQMHistoTests: Total skipped: 189
• DQMHistoTests: Total Missing objects: 0
• Checked 107 log files, 14 edm output root files, 26 DQM output files

[perrozzi]

dear all, these (#3415, #3416, #3417, #3419) are the urgent updates needed by GEN for MC v2 production we were discussing at the last ORP.
Please consider approving them at your earliest convenience.
Thanks a lot in advance

[smuzaffar]

+external

[perrozzi]

Just to clarify: the backport of this PR in particular to 92x (#3419) and 71x (#3417) and corresponding new releases are very urgent because we need the new PDF to start producing gridpacks [*]. The gridpacks production is a pre-condition for the GEN-SIM campaign, it would be good not to wait for 930 to be out.

[*] We use 92x (gcc53x) for POWHEG and 71x (gcc48x) for Madgraph gridpacks, they can be then used on all the CMSSW versions

[davidlange6]

hi Luca It doesn't make sense to do anything in 92x for gen going forward. we'll already have to support 93x for the same reason, so we should converge to that cycle (and a back port will show up in 930 before 92x regardless...) 71x was noted at the release meeting.

…

On Sep 15, 2017, at 4:33 PM, perrozzi ***@***.***> wrote: Just to clarify: the backport of this PR in particular to 92x (#3419) and 71x (#3417) and corresponding new releases are very urgent because we need the new PDF to start producing gridpacks [*]. The gridpacks production is a pre-condition for the GEN-SIM campaign, it would be good not to wait for 930 to be out. [*] We use 92x (gcc53x) for POWHEG and 71x (gcc48x) for Madgraph gridpacks, they can be then used on all the CMSSW versions — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.

[perrozzi]

Yes I agree, but for the moment we have validated POWHEG using gcc530. We were not aware of the switch to gcc630 for MC v2 production.
We can try to validate it asap in 93x/gcc630, hoping that there are no hiccups. I assume that it would be ok.
Anticipating possible problems, what shall we do in case gcc630 doesn't work?

[davidlange6]

It sounds like POWHEG workflows need to become part of the routine CMS validation... then we'd all be aware of its status on gcc630 or other compilers that CMS may wish to move towards. Lets find out if POWHEG+gcc630 works or not and worry next week if it doesn't.

…

On Sep 15, 2017, at 4:56 PM, perrozzi ***@***.***> wrote: Yes I agree, but for the moment we have validated POWHEG using gcc530. We were not aware of the switch to gcc630 for MC v2 production. We can try to validate it asap in 93x/gcc630, hoping that there are no hiccups. I assume that it would be ok. Anticipating possible problems, what shall we do in case gcc630 doesn't work? — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or mute the thread.

[perrozzi]

I am collecting the issues here
cms-sw/genproductions#1307 (comment)
they are not necesarily related (only) to gcc630...
For the moment we can probably live with 93x, I will let you know in case of "unsolvable" problems