SSHBatchComputingElement

SSH (Virtual) Batch Computing Element: For a given list of ip/cores pair it will send jobs directly through ssh

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

Bases: SSHComputingElement

__init__(ceUniqueID)

Standard constructor.

available()

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.

getCEStatus()

Method to return information on running and pending jobs.

getDescription()

Get CE description as a dictionary.

This is called by the JobAgent for the case of “inner” CEs.

getJobOutput(jobID, localDir=None)

Get the specified job standard output and error files. If the localDir is provided, the output is returned as file in this directory. Otherwise, the output is returned as strings.

getJobStatus(jobIDList)

Get status of the jobs in the given list

initializeParameters()

Initialize the CE parameters after they are collected from various sources

isValid()

Check the sanity of the Computing Element definition

killJob(jobIDs)

Kill specified jobs

loadBatchSystem(batchSystemName)

Instantiate object representing the backend batch system

Parameters:

batchSystemName (str) – name of the batch system

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)

Set proxy for this instance

setToken(token)

shutdown()

Close every per-host SSH connection (and gateway), releasing their Paramiko Transport threads. Called when the CE is evicted/rebuilt by the QueueCECache.

submitJob(executableFile, proxy, numberOfJobs=1)

Method to submit job

writeProxyToFile(proxy)

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