LAM: C++ and system() command does not work

"Just curious -- are you using InfiniBand or Myrinet?
There are
definite problems with using system() on the versions of
IB/Myri
driver stacks that LAM/MPI supports. "

I'm using InfiniBand. Curious yes. Hmm...little redesign
will be necessary i think....

Thanks
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On Sep 12, 2007, at 10:18 AM, XMATXweb.de wrote:

> "Just curious -- are you using InfiniBand or
Myrinet? There are
> definite problems with using system() on the versions
of IB/Myri
> driver stacks that LAM/MPI supports. "
>
> I'm using InfiniBand. Curious yes. Hmm...little
redesign will be  
> necessary i think....

Sorry about that; it's a problem down in the kernel/driver
stacks.

Note that if you're using the IB support that comes with
LAM/MPI,  
this means you're likely using an mVAPI-based IB kernel
stack.  You  
might want to investigate upgrading to OFED (the OpenFabrics
 
Enterprise Distribution IB stack).  It's open source and is
where all  
new work related to HPC is occurring in the IB vendor
arena.

For example: http://www.open-mpi.org/faq/?category=openfabrics#vapi- 
support (note that "OpenIB" is the
older/deprecated name for the  
OpenFabrics project).

-- 
Jeff Squyres
Cisco Systems

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