Newsgroups: comp.parallel
From: chetan@cdac.ernet.in
Subject: Cluster of SMPs
Organization: Deja News - The Leader in Internet Discussion
Date: 9 Mar 1998 19:19:24 GMT
Message-ID: <6e1fbs$ipq$1@encore.ece.cmu.edu>

Hi all
A few questions.
In the case of use of communications libraries (MPI, PVM) on
a cluster of SMPs are the jobs sent to each CPU explicitly ?
And does the communication among processes on the same node
(containing N CPUs, N=2,4,8,16 etc) take place using shared
memory ?

The load balancing on SMPs is the function of the OS and the
user need not (or maybe cannot?) specify the CPU for a process.
If this is correct then how can OS allow the libs to send a
process to a particular CPU or otherwise how do libs achieve
this ?

Thanks in advance.
Regards,
Chetan

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