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#!/usr/bin/env python
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"""
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Re-write config file and optionally convert to python
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"""
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__revision__ = "$Id: writeCfg.py,v 1.23 2009/07/30 18:45:44 ewv Exp $"
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__version__ = "$Revision: 1.23 $"
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import getopt
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import imp
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import os
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import pickle
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import sys
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import xml.dom.minidom
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from random import SystemRandom
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from ProdCommon.CMSConfigTools.ConfigAPI.CfgInterface import CfgInterface
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from FWCore.ParameterSet.Config import include
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import FWCore.ParameterSet.Types as CfgTypes
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MyRandom = SystemRandom()
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class ConfigException(Exception):
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"""
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Exceptions raised by writeCfg
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"""
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def __init__(self, msg):
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Exception.__init__(self, msg)
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self._msg = msg
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return
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def __str__(self):
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return self._msg
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def main(argv) :
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"""
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writeCfg
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- Read in existing, user supplied cfg or pickled pycfg file
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- Modify job specific parameters based on environment variables and arguments.xml
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- Write out modified cfg or pickled pycfg file
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required parameters: none
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optional parameters:
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--help : help
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--debug : debug statements
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"""
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# defaults
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inputFileNames = None
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parentFileNames = None
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debug = False
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_MAXINT = 900000000
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try:
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opts, args = getopt.getopt(argv, "", ["debug", "help"])
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except getopt.GetoptError:
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print main.__doc__
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sys.exit(2)
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try:
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CMSSW = os.environ['CMSSW_VERSION']
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parts = CMSSW.split('_')
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CMSSW_major = int(parts[1])
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CMSSW_minor = int(parts[2])
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CMSSW_patch = int(parts[3])
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except (KeyError, ValueError):
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msg = "Your environment doesn't specify the CMSSW version or specifies it incorrectly"
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raise ConfigException(msg)
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# Parse command line options
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for opt, arg in opts :
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if opt == "--help" :
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print main.__doc__
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sys.exit()
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elif opt == "--debug" :
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debug = True
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# Parse remaining parameters
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try:
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fileName = args[0]
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outFileName = args[1]
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except IndexError:
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print main.__doc__
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sys.exit()
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# Read in Environment, XML and get optional Parameters
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nJob = int(os.environ.get('NJob', '0'))
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preserveSeeds = os.environ.get('PreserveSeeds','')
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incrementSeeds = os.environ.get('IncrementSeeds','')
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# Defaults
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maxEvents = 0
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skipEvents = 0
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firstEvent = -1
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compHEPFirstEvent = 0
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firstRun = 0
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dom = xml.dom.minidom.parse(os.environ['RUNTIME_AREA']+'/arguments.xml')
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for elem in dom.getElementsByTagName("Job"):
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if nJob == int(elem.getAttribute("JobID")):
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if elem.getAttribute("MaxEvents"):
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maxEvents = int(elem.getAttribute("MaxEvents"))
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if elem.getAttribute("SkipEvents"):
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skipEvents = int(elem.getAttribute("SkipEvents"))
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if elem.getAttribute("FirstEvent"):
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firstEvent = int(elem.getAttribute("FirstEvent"))
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if elem.getAttribute("FirstRun"):
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firstRun = int(elem.getAttribute("FirstRun"))
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generator = str(elem.getAttribute('Generator'))
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inputFiles = str(elem.getAttribute('InputFiles'))
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parentFiles = str(elem.getAttribute('ParentFiles'))
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lumis = str(elem.getAttribute('Lumis'))
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# Read Input python config file
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handle = open(fileName, 'r')
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try: # Nested form for Python < 2.5
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try:
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print "Importing .py file"
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cfo = imp.load_source("pycfg", fileName, handle)
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cmsProcess = cfo.process
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except Exception, ex:
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msg = "Your pycfg file is not valid python: %s" % str(ex)
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raise ConfigException(msg)
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finally:
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handle.close()
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cfg = CfgInterface(cmsProcess)
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# Set parameters for job
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print "Setting parameters"
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inModule = cfg.inputSource
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if maxEvents:
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cfg.maxEvents.setMaxEventsInput(maxEvents)
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if skipEvents:
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inModule.setSkipEvents(skipEvents)
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# Set "skip events" for various generators
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if generator == 'comphep':
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cmsProcess.source.CompHEPFirstEvent = CfgTypes.int32(firstEvent)
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elif generator == 'lhe':
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cmsProcess.source.skipEvents = CfgTypes.untracked(CfgTypes.uint32(firstEvent))
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cmsProcess.source.firstEvent = CfgTypes.untracked(CfgTypes.uint32(firstEvent+1))
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elif firstEvent != -1: # (Old? Madgraph)
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cmsProcess.source.firstEvent = CfgTypes.untracked(CfgTypes.uint32(firstEvent))
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if inputFiles:
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inputFileNames = inputFiles.split(',')
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inModule.setFileNames(*inputFileNames)
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# handle parent files if needed
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if parentFiles:
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parentFileNames = parentFiles.split(',')
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inModule.setSecondaryFileNames(*parentFileNames)
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if lumis:
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if CMSSW_major < 3: # FUTURE: Can remove this check
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print "Cannot skip lumis for CMSSW 2_x"
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else:
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lumiRanges = lumis.split(',')
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inModule.setLumisToProcess(*lumiRanges)
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# Pythia parameters
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if (firstRun):
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inModule.setFirstRun(firstRun)
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# Check if there are random #'s to deal with
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if cfg.data.services.has_key('RandomNumberGeneratorService'):
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print "RandomNumberGeneratorService found, will attempt to change seeds"
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from IOMC.RandomEngine.RandomServiceHelper import RandomNumberServiceHelper
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ranGenerator = cfg.data.services['RandomNumberGeneratorService']
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randSvc = RandomNumberServiceHelper(ranGenerator)
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incrementSeedList = []
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preserveSeedList = []
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if incrementSeeds:
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incrementSeedList = incrementSeeds.split(',')
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if preserveSeeds:
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preserveSeedList = preserveSeeds.split(',')
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# Increment requested seed sets
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for seedName in incrementSeedList:
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curSeeds = randSvc.getNamedSeed(seedName)
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newSeeds = [x+nJob for x in curSeeds]
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randSvc.setNamedSeed(seedName, *newSeeds)
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preserveSeedList.append(seedName)
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# Randomize remaining seeds
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randSvc.populate(*preserveSeedList)
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# Write out new config file
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outFile = open(outFileName,"w")
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outFile.write("import FWCore.ParameterSet.Config as cms\n")
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outFile.write("import pickle\n")
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outFile.write("pickledCfg=\"\"\"%s\"\"\"\n" % pickle.dumps(cmsProcess))
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outFile.write("process = pickle.loads(pickledCfg)\n")
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outFile.close()
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if (debug):
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print "writeCfg output (May not be exact):"
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print "import FWCore.ParameterSet.Config as cms"
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print cmsProcess.dumpPython()
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if __name__ == '__main__' :
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exit_status = main(sys.argv[1:])
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sys.exit(exit_status)
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