Changed the interface to work with sherpa2.

[ghost]

The main changes to previous interface for sherpa2 is the change in the handling of the random nuber engine, here an unnamed namespace is used to store the first reference to the RNG to hand it over to the Sherpa external RNG class.

[ghost]

This PR should test correctly after 240414-1400 IB.

[cmsbuild]

A new Pull Request was created by @Degano (Alessandro Degano) for CMSSW_7_1_X.

Changed the interface to work with sherpa2.

It involves the following packages:

GeneratorInterface/SherpaInterface

@vciulli, @nclopezo, @thuer, @cmsbuild, @bendavid, @Degano 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.
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@nclopezo, @ktf you are the release manager for this.
You can merge this pull request by typing 'merge' in the first line of your comment.

[vciulli]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_1_X IBs unless changes or unless it breaks tests. @nclopezo, @ktf can you please take care of it?

[cmsbuild]

-1
I found an error when building:

>> Leaving Package FWCore/Version
>> Package FWCore/Version built
>> Subsystem FWCore built
In file included from /afs/cern.ch/cms/sw/ReleaseCandidates/vol1/slc6_amd64_gcc481/external/sherpa/1.4.2-cms3/include/SHERPA-MC/ATOOLS/Math/Random.H:8:0,
                 from /build/cmsbuild/jenkins-workarea/workspace/ib-integration-CMSSW_7_1_X-slc6_amd64_gcc481/CMSSW_7_1_X_2014-04-24-0200/src/GeneratorInterface/SherpaInterface/src/SherpaHadronizer.cc:13:
/build/cmsbuild/jenkins-workarea/workspace/ib-integration-CMSSW_7_1_X-slc6_amd64_gcc481/CMSSW_7_1_X_2014-04-24-0200/src/GeneratorInterface/SherpaInterface/src/SherpaHadronizer.cc:321:16: error: redefinition of 'class CMS_SHERPA_RNG'
 DECLARE_GETTER(CMS_SHERPA_RNG,"CMS_SHERPA_RNG",ATOOLS::External_RNG,ATOOLS::RNG_Key);
                ^
/afs/cern.ch/cms/sw/ReleaseCandidates/vol1/slc6_amd64_gcc481/external/sherpa/1.4.2-cms3/include/SHERPA-MC/ATOOLS/Org/Getter_Function.H:74:9: note: in definition of macro 'DECLARE_GETTER_BASE'
   class NAME: public ATOOLS::Getter_Function { \
         ^


you can see the results of the tests here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-3474/1014/summary.html

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_1_X IBs unless changes (but tests are reportedly failing). @nclopezo, @ktf can you please take care of it?

[cmsbuild]

+1
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-3474/1024/summary.html

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_1_X IBs unless changes (tests are also fine). @nclopezo, @ktf can you please take care of it?

[ktf]

Apologies to @Degano for the cursing...;)