[Infrastructure,PWGJE] Constrain PWGJE to only one compilation thread

[ktf]

Breaks the build due to very heavy memory usage otherwise.

[github-actions]

O2 linter results: ❌ 2 errors, ⚠️ 0 warnings, 🔕 0 disabled

[ktf]

@vkucera this is along the lines of what you were proposing, IIRC. Do you have better information on which compilation unit takes a lot of memory?

[vkucera]

@vkucera this is along the lines of what you were proposing, IIRC. Do you have better information on which compilation unit takes a lot of memory?

Hi @ktf , yes, I can provide a full list of targets and their memory consumption.
In PWGJE, these are the targets consuming more than 5 GiB on Linux (measured on 2 Dec):

Target	Memory [GiB]
PWGJE/TableProducer/CMakeFiles/O2Physicsexe-analysis-je-jet-deriveddata-writer.dir/derivedDataWriter.cxx.o	9.1
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-substructure-ds-output.dir/jetSubstructureDsOutput.cxx.o	6.7
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-substructure-d0-output.dir/jetSubstructureD0Output.cxx.o	6.7
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-substructure-b0-output.dir/jetSubstructureB0Output.cxx.o	6.7
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-substructure-lc-output.dir/jetSubstructureLcOutput.cxx.o	6.6
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-substructure-dstar-output.dir/jetSubstructureDstarOutput.cxx.o	6.5
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-substructure-dielectron-output.dir/jetSubstructureDielectronOutput.cxx.o	6.5
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-substructure-dplus-output.dir/jetSubstructureDplusOutput.cxx.o	6.4
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-substructure-xictoxipipi-output.dir/jetSubstructureXicToXiPiPiOutput.cxx.o	6.3
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-substructure-bplus-output.dir/jetSubstructureBplusOutput.cxx.o	6.3
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-finder-bplus-qa.dir/jetFinderBplusQA.cxx.o	6.2
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-finder-dplus-qa.dir/jetFinderDplusQA.cxx.o	6.1
PWGJE/TableProducer/CMakeFiles/O2Physicsexe-analysis-je-subtractor-eventwiseconstituent.dir/eventwiseConstituentSubtractor.cxx.o	6.1
PWGJE/TableProducer/CMakeFiles/O2Physicsexe-analysis-je-jet-deriveddata-producer.dir/derivedDataProducer.cxx.o	6.1
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-finder-xictoxipipi-qa.dir/jetFinderXicToXiPiPiQA.cxx.o	5.9
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-finder-b0-qa.dir/jetFinderB0QA.cxx.o	5.9
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-nuclei-in-jets.dir/nucleiInJets.cxx.o	5.8
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-finder-lc-qa.dir/jetFinderLcQA.cxx.o	5.8
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-finder-dstar-qa.dir/jetFinderDstarQA.cxx.o	5.8
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-finder-ds-qa.dir/jetFinderDsQA.cxx.o	5.8
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-finder-dielectron-qa.dir/jetFinderDielectronQA.cxx.o	5.8
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-taggerhf-qa.dir/jetTaggerHFQA.cxx.o	5.7
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-fragmentation.dir/jetFragmentation.cxx.o	5.7
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-finder-d0-qa.dir/jetFinderD0QA.cxx.o	5.7
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-v0qa.dir/v0QA.cxx.o	5.6
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-finder-full-qa.dir/jetFinderFullQA.cxx.o	5.5
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-finder-charged-qa.dir/jetFinderQA.cxx.o	5.5
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-spectra-charged.dir/jetSpectraCharged.cxx.o	5.4
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-full-jet-spectra.dir/fullJetSpectra.cxx.o	5.4
PWGJE/TableProducer/CMakeFiles/O2Physicsexe-analysis-je-estimator-rho.dir/rhoEstimator.cxx.o	5.4
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-substructure-output.dir/jetSubstructureOutput.cxx.o	5.3
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-bjet-tree-creator.dir/bjetTreeCreator.cxx.o	5.2
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-recoil-jets.dir/recoilJets.cxx.o	5.1
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-substructure-dielectron.dir/jetSubstructureDielectron.cxx.o	5.1
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-hadron-recoil.dir/jetHadronRecoil.cxx.o	5.1
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-phi-in-jets.dir/phiInJets.cxx.o	5.0
PWGJE/Tasks/CMakeFiles/O2Physicsexe-analysis-je-jet-substructure-b0.dir/jetSubstructureB0.cxx.o	5.0

[ktf]

Thanks, could you please amend this PR to include only those?

[ktf]

Or maybe I simply do it, it should not take long.

[vkucera]

Thanks @ktf , can you also add the other 3 table producers from the list?

PWGJE/TableProducer/CMakeFiles/O2Physicsexe-analysis-je-subtractor-eventwiseconstituent.dir/eventwiseConstituentSubtractor.cxx.o
PWGJE/TableProducer/CMakeFiles/O2Physicsexe-analysis-je-jet-deriveddata-producer.dir/derivedDataProducer.cxx.o
PWGJE/TableProducer/CMakeFiles/O2Physicsexe-analysis-je-estimator-rho.dir/rhoEstimator.cxx.o