trfMTTools.py

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# Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
 

 
__version__ = '$Revision'
 
import os
 
import logging
msg = logging.getLogger(__name__)
 
from PyJobTransforms.trfExeStepTools import commonExecutorStepName
from PyJobTransforms.trfExitCodes import trfExit
 
import PyJobTransforms.trfExceptions as trfExceptions
 

def detectAthenaMTThreads(argdict = {}, currentSubstep = '', legacyThreadingRelease = False):
    athenaMTThreads = 0
    athenaConcurrentEvents = 0
    currentSubstep = commonExecutorStepName(currentSubstep)
 
    if legacyThreadingRelease:
        return athenaMTThreads, athenaConcurrentEvents
 
    # Try and detect if any AthenaMT has been enabled 
    try:
        if 'athenaopts' in argdict:
            for substep in argdict['athenaopts'].value:
                if substep == 'all' or substep == currentSubstep:
                    threadArg = [opt.replace("--threads=", "") for opt in argdict['athenaopts'].value[substep] if '--threads' in opt]
                    if len(threadArg) == 0:
                        athenaMTThreads = 0
                    elif len(threadArg) == 1:
                        if 'multithreaded' in argdict and substep == 'all':
                            raise ValueError("Detected conflicting methods to configure AthenaMT: --multithreaded and --threads=N (via athenaopts). Only one method must be used")
                        athenaMTThreads = int(threadArg[0])
                        if athenaMTThreads < -1:
                            raise ValueError("--threads was set to a value less than -1")
                    else:
                        raise ValueError("--threads was set more than once in 'athenaopts'")
                    if athenaMTThreads > 0:
                        msg.info('AthenaMT detected from "threads" setting with {0} threads for substep {1}'.format(athenaMTThreads,substep))
 
                    concurrentEventsArg = [opt.replace("--concurrent-events=", "") for opt in argdict['athenaopts'].value[substep] if '--concurrent-events' in opt]
                    if len(concurrentEventsArg) == 1:
                        athenaConcurrentEvents = int(concurrentEventsArg[0])
                        if athenaConcurrentEvents < -1:
                            raise ValueError("--concurrent-events was set to a value less than -1")
                        msg.info('Custom concurrent event setting read from "concurrent-events" with {0} events for substep {1}'.format(athenaConcurrentEvents,substep))
                    else:
                        athenaConcurrentEvents = athenaMTThreads
        if (athenaMTThreads == 0 and
            'ATHENA_CORE_NUMBER' in os.environ and
            'multithreaded' in argdict and argdict['multithreaded'].value):
            athenaMTThreads = int(os.environ['ATHENA_CORE_NUMBER'])
            if athenaMTThreads < -1:
                raise ValueError("ATHENA_CORE_NUMBER value was less than -1")
            msg.info('AthenaMT detected from ATHENA_CORE_NUMBER with {0} threads'.format(athenaMTThreads))
            athenaConcurrentEvents = athenaMTThreads
    except ValueError as errMsg:
        myError = 'Problem discovering AthenaMT setup: {0}'.format(errMsg)
        raise trfExceptions.TransformExecutionException(trfExit.nameToCode('TRF_EXEC_SETUP_FAIL'), myError)
 
    return athenaMTThreads, athenaConcurrentEvents