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hwloc

More Network Locality (Netloc) progress

1 min read

We announced the Network locality project at SC’13, and generated a LOT of interest (far more than I even anticipated!).  As a refresher, here’s a link to a a blog entry we wrote about Netloc back in November. There is still much work to be done; we’re actively continuing work in multiple areas:

Process and memory affinity: why do you care?

3 min read

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 your MPI and HPC applications.  If you’re not using processor and memory affinity, you’re likely experiencing performance degradation without even realizing it. In short: If you’re not booting […]