News

Ultra low latency Ethernet (UCS “usNIC”): questions and answers
Ultra low latency Ethernet (UCS “usNIC”): questions and answers
I have previously written a few details about our upcoming ultra low latency solution for High Performance Computing (HPC).  Since my last blog post, a
July 17, 2013
Open MPI and the MPI-3 MPI_T interface
Open MPI and the MPI-3 MPI_T interface
Open MPI recently revamped its entire run-time parameter system (a.k.a., "MCA parameter system") as part of its implementation effort for the "MPI_T"
July 13, 2013
Process and memory affinity: why do you care?
Process and memory affinity: why do you care?
I've written about NUMA effects and process affinity on this blog lots of times in the past.  It's a complex topic that has a lot of real-world affects on
Jan. 31, 2013
Message size: big or small?
Message size: big or small?
It's the eternal question: should I send lots and lots of small messages, or should I glump multiple small messages into a single, bigger message?
Jan. 28, 2013
McMPI
McMPI
Today's guest blog entry comes from Daniel Holmes, an Applications Developers at the EPCC.  I met Jeff at EuroMPI in September, and he has invited me to
Dec. 10, 2012