This sounds like the fuel problem we're facing right now. Potentially,
there are enough resources (for now). Simultaneously, there is enough
demand (for ever). But they are connected by this artificially
maintained tiny pipe ...
The tuned collective are not supposed to adapt to all cases. T
I have been running the IMB performance tests and noticed some strange
behavior. This is running on a CentOS cluster with 16 processes per
node and using the openib btl. Currently, I am looking at the
MPI_Barrier performance. Since we make use of a recursive double
algorithm (in the tuned co
