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Parallel calculation error

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Old   June 9, 2018, 02:34
Default Parallel calculation error
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Dear friends:
When I use OF5.0, the following error occurs:

mpirun was unable to find the specified executable file, and therefore
did not launch the job. This error was first reported for process
rank 0; it may have occurred for other processes as well.

NOTE: A common cause for this error is misspelling a mpirun command
line parameter option (remember that mpirun interprets the first
unrecognized command line token as the executable).

Node: ai-virtual-machine
Executable: –np
--------------------------------------------------------------------------
4 total processes failed to start

The solver I use is interFoam. Hope to get your help, thanks.
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Old   June 9, 2018, 05:21
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Hi!


What was the command?
You should use:

mpirun -np 4 interFoam -parallel
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Old   June 11, 2018, 05:48
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Quote:
Originally Posted by simrego View Post
Hi!


What was the command?
You should use:

mpirun -np 4 interFoam -parallel
yes, I used this command.
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Old   June 11, 2018, 17:33
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Ray,

Are you on a virtual machine?
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Old   June 12, 2018, 10:38
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Quote:
Originally Posted by physicsunited View Post
Ray,

Are you on a virtual machine?
yes, on a virtual machine
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Old   June 12, 2018, 10:41
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Quote:
Originally Posted by RayJohn View Post
yes, on a virtual machine
Have you allocated access rights to multiple processors on your VM ?

If you've only allowed 1 processor as a resource, mpirun won't be able to access other processors.

Best,
K
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