Hi all,
I retested the very recent trunk with the skampi 4.1. The "alltoall"
works quite nicely up to 7 dual Opterons, whereas bunch of
isend+irecv's choke. There appear to be some "special" effects related
to the 1Gbit setup we are using (problems with broadcom adapters?), and
unless there is a
Thanks Konstantin,
we are in the process of adding 3 more alltoall variants plus two
additional alltoallv methods by midweek next week, so hopefully we can
find the method that works best for your network. (two of the new methods
do slightly different request management and communication order
On Feb 23, 2006, at 1:59 PM, Konstantin Kudin wrote:
What is the approximate time frame for officially releasing version
1.1 ? High performance "alltoall" will be of great use for a whole
bunch of packages where the most challenging parallel part is
distributed FFTs, which usually rely on "allt