[Beowulf] RE: programming multicore clusters
lindahl at pbm.com
Fri Jun 15 12:16:38 PDT 2007
On Fri, Jun 15, 2007 at 09:57:08AM -0400, Joe Landman wrote:
> First, shared memory is nice and simple as a programming model.
Uhuh. You know, there are some studies going where students learning
parallel programming do the same algorithm with MPI and with shared
memory. Would you like to make a bet as to whether they found shared
memory much easier?
> In the implementation, it
> might be taught about multi-core, and optimizing communication within
> boxes via shm sockets, and between boxes by other methods. I think a
> few of the MPI toolkits do this today (Scali, Intel, OpenMPI, ...).
"a few" should be "almost all".
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