[BuildRule] Updates scram build rules

[smuzaffar]

• Use system cuda only if its version is >= to the version shipped with cmssw
• for PR tests also disable usage of release/externals/bin path

[smuzaffar]

please test

[cmsbuild]

The tests are being triggered in jenkins.

• CMSSW_11_2_X_2020-09-28-2300/slc7_amd64_gcc820: https://cmssdt.cern.ch/jenkins/job/ib-run-pr-tests/9637/console Started: 2020/09/29 10:15
• CMSSW_11_2_X_2020-09-28-2300/slc7_amd64_gcc820: https://cmssdt.cern.ch/jenkins/job/ib-run-pr-tests/9638/console Started: 2020/09/29 10:19

[cmsbuild]

A new Pull Request was created by @smuzaffar (Malik Shahzad Muzaffar) for branch IB/CMSSW_11_2_X/master.

@cmsbuild, @smuzaffar, @mrodozov can you please review it and eventually sign? Thanks.
cms-bot commands are listed here

[cmsbuild]

+1
Tested at: f5b0b36
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-bb3764/9638/summary.html
CMSSW: CMSSW_11_2_X_2020-09-28-2300
SCRAM_ARCH: slc7_amd64_gcc820

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-bb3764/9638/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 35
• DQMHistoTests: Total histograms compared: 2539438
• DQMHistoTests: Total failures: 1
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2539415
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 34 files compared)
• Checked 149 log files, 22 edm output root files, 35 DQM output files

[cmsbuild]

Pull request #6279 was updated.