[MPICH] Re: reg. heterogeneous cluster - Use OpenIB on all m/c

[Chadalavada Kalyana Krishna]

Jayesh,

Thanks so much for your detailed replies. 

>From the OpenIB Windows FAQ, it looks like it is possible to have a single
subnet manager across Windows and Linux machines. 

I looked at the Windows developer guide dt. Sep 14, 2007 (that you wrote :)
) and the documentation says Infiniband still uses the channel interface. 

I will post on the MVAPICH list also to get clarification regarding support
of launching single MPI application across Windows and Linux using SMPD.

Thank you.

Regards,
Kalyan

-----Original Message-----
From: Jayesh Krishna [mailto:jayesh at mcs.anl.gov] 
Sent: Wednesday, November 21, 2007 11:42 AM
To: 'Kalyana Krishna'
Cc: mpich-discuss at mcs.anl.gov
Subject: FW: [MPICH] Re: reg. heterogeneous cluster - Use OpenIB on all m/c

 
FYI...

Regds,
Jayesh

-----Original Message-----
From: Pavan Balaji [mailto:balaji at mcs.anl.gov] 
Sent: Wednesday, November 21, 2007 12:37 PM
To: Jayesh Krishna
Subject: Re: [MPICH] Re: reg. heterogeneous cluster


>  3) If answer to 1 & 2 is yes, should the Infiniband driver stack on  
> all machines be from the same vendor? (OpenIB, QLogic (Silverstorm),  
> Cisco etc)? Or can Linux have OpenIB stack and windows have vendor  
> stack and still be able to participate in a single MPI application?

Different IB stacks don't interact very well even on homogeneous platforms.
The user should install OpenIB (now called OpenFabrics) on all machines,
since it's supported by all vendors.

 -- Pavan

--
Pavan Balaji
http://www.mcs.anl.gov/~balaji