Are you doing this dynamically? Could you change the code to create the necessary communicators just once at job launch time? -L
On 2013, Sep 5, at 11:56 AM, xingqiu yuan <xingqiuy...@gmail.com> wrote: > Hi ALL > > MPI_COMM_CREATE takes a substantial amount of time on large communicators, > any good ideas to reduce the time consuming on large communicators? > > regards > > Xingqiu Yuan > > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
