updated sherpa to v2.2.2

[smuzaffar]

Requested cms-externals/sherpa#9

[smuzaffar]

please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/17917/console

[cmsbuild]

A new Pull Request was created by @smuzaffar (Malik Shahzad Muzaffar) for branch IB/CMSSW_9_0_X/gcc620next.

@cmsbuild, @smuzaffar, @iahmad-khan, @davidlange6 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.

[cmsbuild]

+1
Tested at: e3f76fb
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-2855/17917/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-2855/17917/summary.html

The workflows 1003.0, 1001.0, 1000.0, 140.53, 136.731, 4.22 have different files in step1_dasquery.log than the ones found in the baseline. You may want to check and retrigger the tests if necessary. You can check it in the "files" directory in the results of the comparisons

[pmillet]

I did a few tests with slc6_amd64_gcc620 / CMSSW_9_0_DEVEL_X_2017-02-23-2300.
While event generation seems to work fine, an issue occurs when trying to do the phase space calculation:

Sherpa: Matrix_Element_Handler::InitializeProcesses throws normal exit: 
   Source code created. Run './makelibs' to compile.
Exception_Handler::SignalHandler: Signal (11) caught. 
Exception_Handler::GenerateStackTrace(..): Generating stack trace 
{
  0x7fab02e605a4  in 'SHERPA::Event_Handler::MPISync()' (Event_Handler.C:430)
  0x7fab02e60f39  in 'SHERPA::Event_Handler::Finish()' (Event_Handler.C:393)
  0x7fab04005a8b  in 'SHERPA::Sherpa::SummarizeRun()' (Sherpa.C:328)
  0x7fab04005bf9  in 'SHERPA::Sherpa::PrepareTerminate()' (Sherpa.C:313)
  0x7fab02b5b470  in 'ATOOLS::Terminate()' (Exception_Handler.C:135)
  0x3bbd21ed1d    in '__libc_start_main' (??:?)
}   Cannot continue.
Sherpa: Matrix_Element_Handler::InitializeProcesses throws normal exit: 
   Source code created. Run './makelibs' to compile.
Segmentation fault

Running makelibs and producing events works fine afterwards. This issue does not occur in 71X with gcc481. I contacted the Sherpa authors about this. According to them, this happens when Sherpa is wrapping up and can safely be ignored for the moment. They are investigating to find the source and possible fixes of this bug.

[pmillet]

@govoni, @perrozzi
should we proceed with including this into 90X?
according to @smuzaffar this is needed before getting it into 71X (see #2856)

[cmsbuild]

backport done
Successfully backported PR #2855 as #2867 for branch IB/CMSSW_9_0_X/gcc530

[perrozzi]

(the answer was yes :-) )