Discussion:
mpirun and --mca btl
(too old to reply)
Stefan Kuhne
2009-07-14 21:20:52 UTC
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Hi,

i'm new in mpi and try to figure out some things.
I use one Ubuntu-8.04 at the moment.
So i get these message about IB.

I've found a workaround:
mpirun --mca btl ^openbi ...

But my mpirun won't know someting about these option.

What did i wrong?

Regards,
Stefan Kuhne
Michael Hofmann
2009-07-15 07:02:33 UTC
Permalink
Post by Stefan Kuhne
Hi,
i'm new in mpi and try to figure out some things.
I use one Ubuntu-8.04 at the moment.
So i get these message about IB.
What messages?
Post by Stefan Kuhne
mpirun --mca btl ^openbi ...
^^^^^^^^^^^^^^^

This does not seem to be a useful parameter (at least the thing is called
"openib").

With "ompi_info --param all all" you can get a list of supported
parameters for the "--mca" option.
Post by Stefan Kuhne
But my mpirun won't know someting about these option.
What did i wrong?
Be more elaborate if you explain your problem to someone else.


Michael
Stefan Kuhne
2009-07-15 09:36:13 UTC
Permalink
Post by Michael Hofmann
Post by Stefan Kuhne
Hi,
i'm new in mpi and try to figure out some things.
I use one Ubuntu-8.04 at the moment.
So i get these message about IB.
What messages?
This message:

libibverbs: Fatal: couldn't read uverbs ABI version.
--------------------------------------------------------------------------
[0,0,0]: OpenIB on host Ubuntu-8-04 was unable to find any HCAs.
Another transport will be used instead, although this may result in
lower performance.
--------------------------------------------------------------------------
Post by Michael Hofmann
Post by Stefan Kuhne
mpirun --mca btl ^openbi ...
^^^^^^^^^^^^^^^
This does not seem to be a useful parameter (at least the thing is
called "openib").
My fault, i meen "mpirun --mca btl ^openib ...".
Post by Michael Hofmann
With "ompi_info --param all all" you can get a list of supported
parameters for the "--mca" option.
My sytem doesn't have "ompi_info".

Oh, i've installed the wrong package ...
Post by Michael Hofmann
Post by Stefan Kuhne
But my mpirun won't know someting about these option.
What did i wrong?
Be more elaborate if you explain your problem to someone else.
Thanks for the hit, i've found the rigth package.

Stefan Kuhne

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