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Subject: Re: [OMPI devel] how to add a component in the ompi?
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2010-03-16 12:52:17

On Mar 16, 2010, at 9:45 AM, hu yaohui wrote:

> it just said,i had a wrong command format,when i use mpirun --help,i really
> didn't find the --mca parameter.why the tcp FAQ part list these command lines,
> but it cann't execute successfully on my machine.Is there any another way to control the specific
> btl components to be used?

Make sure you're using the right mpirun -- you might have multiple installed on your machine.

OMPI's "mpirun --help" definitely includes a description of the --mca parameter:

   -mca|--mca <arg0> <arg1>
                         Pass context-specific MCA parameters; they are
                         considered global if --gmca is not used and only
                         one context is specified (arg0 is the parameter
                         name; arg1 is the parameter value)

Jeff Squyres
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