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31.2.4 Starting Parallel FLUENT with the Microsoft Job Scheduler ( win64 Only)

The Microsoft Job Scheduler allows you to manage multiple jobs and tasks, allocate computer resources, send tasks to compute nodes, and monitor jobs, tasks, and compute nodes.

FLUENT currently supports Windows XP as well as the Windows Server operating system ( win64 only). The Windows Server operating system includes a "compute cluster package" (CCP) that combines the Microsoft MPI type ( msmpi) and Microsoft Job Scheduler. FLUENT provides a means of using the Microsoft Job Scheduler using the following flag in the parallel command:

-ccp head-node-name

where -ccp indicates the use of the compute cluster package, and head-node-name indicates the name of the head node of the computer cluster.

For example, if you want to use the Job Scheduler, the corresponding command syntax would be:

fluent 3d -t2 -ccp head-node-name

Likewise, if you do not want to use the Job Scheduler, the following command syntax can be used with msmpi:

fluent 3d -t2 -pmsmpi -cnf=host


The first time that you try to run FLUENT in parallel, a separate Command Prompt will open prompting you to verify the current Windows account that you are logged into. If you have a new account password, enter in your password and press the <Enter> key. If you want FLUENT to remember your password on this machine, press the Y key and press the <Enter> key. Once the username and password have been verified and encrypted into the Windows Registry, then FLUENT parallel will launch.


If you do not want to use the Microsoft Job Scheduler, but you still want to use msmpi, you will need to stop the Microsoft Compute Cluster MPI Service through the Control Panel, and you need to start your own version of SMPD (the process manager for msmpi on Windows) using the following command on each host on which you want to run FLUENT:

start smpd -d 0

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