PoolComputingElement

The Computing Element to run several jobs simultaneously

class DIRAC.Resources.Computing.PoolComputingElement.PoolComputingElement(ceUniqueID)

Bases: DIRAC.Resources.Computing.ComputingElement.ComputingElement

__init__(ceUniqueID)

Standard constructor.

available(jobIDList=None)

This method returns the number of available slots in the target CE. The CE instance polls for waiting and running jobs and compares to the limits in the CE parameters.

Parameters:jobIDList (list) – list of already existing job IDs to be checked against
finalizeJob(taskID, result)

Finalize the job

getCEStatus(jobIDList=None)

Method to return information on running and pending jobs.

getDescription()

Get CE description as a dictionary

getParameterDict()

Get the CE complete parameter dictionary

getProcessorsInUse()
initializeParameters()

Initialize the CE parameters after they are collected from various sources

isProxyValid(valid=1000)

Check if the stored proxy is valid

isValid()

Check the sanity of the Computing Element definition

loadBatchSystem()

Instantiate object representing the backend batch system

mandatoryParameters = []
monitorProxy(pilotProxy, payloadProxy)

Monitor the payload proxy and renew as necessary.

sendOutput(stdid, line)

Callback function such that the results from the CE may be returned.

setCPUTimeLeft(cpuTimeLeft=None)

Update the CPUTime parameter of the CE classAd, necessary for running in filling mode

setParameters(ceOptions)

Add parameters from the given dictionary overriding the previous values

Parameters:ceOptions (dict) – CE parameters dictionary to update already defined ones
setProxy(proxy, valid=0)

Set proxy for this instance

submitJob(executableFile, proxy, **kwargs)

Method to submit job.

writeProxyToFile(proxy)

CE helper function to write a CE proxy string to a file.

DIRAC.Resources.Computing.PoolComputingElement.executeJob(executableFile, proxy, taskID, **kwargs)

wrapper around ce.submitJob: decides which CE to use (Sudo or InProcess)