[Beowulf] MPI_Alltoall

Rita Zrour rittta80 at yahoo.com
Tue Apr 12 05:29:41 EDT 2005

Hello I have a question,
when i do many  MPI_Alltoall in my program always the
first MPI_Alltoall take too much time to be done. 

I don't know where the first communication is always
expensive. Is that a problem of memory???????


Do you Yahoo!? 
Yahoo! Small Business - Try our new resources site!
Beowulf mailing list, Beowulf at beowulf.org
To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf

More information about the Beowulf mailing list