PBS - restrict total number of processors per user

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PBS - restrict total number of processors per user

Hello everyone!

I am a bit inexperienced with administering queueing programs. I installed Torque (a PBS derivative) on a Linux cluster and it is running well. There is one annoying problem though: users can run massively parallel jobs and serial jobs too. Almost all users do a mix of the two. I would like to restrict the total number of processors per user at any given time, say 40 processors, whether it is 20 jobs x 2 CPUs or 2 jobs x 20 CPUs, etc. Is there a way to do that in PBS/Torque with or without Moab/Maui?

Thanks in advance for any suggestions!
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qrun(8B)								PBS								  qrun(8B)

qrun - run a pbs batch job SYNOPSIS
qrun [-a] [-H host] job_identifier ... DESCRIPTION
The qrun command is used to force a batch server to initiate the execution of a batch job. The job is run regardless of scheduling posi- tion, resource requirements, or state. In order to execute qrun, the user must have PBS Operation or Manager privilege. OPTIONS
-a Specifies the job(s) is to be run asynchronously. -H host Specifies the host within the cluster on which the job(s) are to be run. The host argument is the name of a host that is a member of the cluster of hosts managed by the server. If the option is not specified, the server will select the "worst possible" host on which to execute the job. OPERANDS
The qrun command accepts one or more job_identifier operands of the form: sequence_number[.server_name][@server] STANDARD ERROR
The qrun command will write a diagnostic message to standard error for each error occurrence. EXIT STATUS
Upon successful processing of all the operands presented to the qrun command, the exit status will be a value of zero. If the qrun command fails to process any operand, the command exits with a value greater than zero. SEE ALSO
pbs_server(8B), pbs_sched(8B), qmgr(1B) Local qrun(8B)

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