[Beowulf] MPI_File experience???

Per Lindstrom klamman.gard at telia.com
Sat Jan 24 16:36:06 EST 2004


Ambrose,

This sounds interesting, how is the price/prestanda compared to PCs?

/pelle

ambrose lewis wrote:

>Hi All:
>I have a small cluster running a remote sensing code. 
>I'm using MPICH on top of Mac OS X.
>Right now, my parallel performance isn't so great,
>because my communication time is far outweighing my
>computations.
>Does anybody have experience/suggestions/lessons
>learned about using the various MPI-IO routines???
>I'm particularly interesting in learning more about
>successful use of the non-blocking read and write
>calls.
>Any pointers to sample codes would be greatly
>appreciated!
>THANXS!
>amb
>
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