TrigOnlineMonitor: Add histograms to monitor number of forks, threads and slots

Changes

Add two new HLT framework online monitoring histograms in TrigOpMonitor:

• MTConfig - showing number of threads and slots in each HLT worker
• MPWorkers - showing ID of each HLT worker, which allows to determine how many workers there are per HLT node

It is not possible to monitor the number of forks directly on the athena side, but the information can be easily deduced by just looking at the worker IDs from the latter histogram.

Motivation

It came up during one of the Technical Runs at P1 that it would be useful to determine the MP/MT configuration while running by just looking at the online monitoring histograms. Otherwise, the configuration is only present somewhere in OKS and one needs to know where to look for it.

Somewhat relevant Jira: ATR-19667

Testing

Running with 3 forks with 4 threads and 2 slots each:

athenaHLT.py \
--nprocs=3 --threads=4 --concurrent-events=2 \
-c "doEmptyMenu=True;BFieldAutoConfig=False;" \
--number-of-events=100 \
--file=/cvmfs/atlas-nightlies.cern.ch/repo/data/data-art/TrigP1Test/data18_13TeV.00360026.physics_EnhancedBias.merge.RAW._lb0151._SFO-1._0001.1 \
TriggerJobOpts/runHLT_standalone.py

produced the following histograms:

cc @tamartin, @astruebi, @fwinkl

This merge request affects 1 package:

• HLT/Trigger/TrigMonitoring/TrigOnlineMonitor

This merge request affects 2 files:

• HLT/Trigger/TrigMonitoring/TrigOnlineMonitor/src/TrigOpMonitor.cxx
• HLT/Trigger/TrigMonitoring/TrigOnlineMonitor/src/TrigOpMonitor.h

Adding @wiedenma ,@bernius ,@fwinkl ,@rbielski as watchers

added Trigger master review-pending-level-1 labels

I think this may have been @mark's suggestion so tagging also him for information

CI Result SUCCESS (hash 7a060713)

	Athena	AthSimulation	AthGeneration	AnalysisBase
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 24731]

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit 61da723e

added sweep:ignore label