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Multiple readers have told me that it is difficult for them to understand and/or visualize the effects of latency on their HPC applications, particularly in modern NUMA (non-uniform memory access) and NUNA (non-uniform network access) environments.
Let’s breaks down the different levels of latency in a typical modern server and network computing environments.
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A number of you complained when blogs.cisco.com switched to requiring a social medial login to leave comments.
It turns out that you were not alone.
Industry-wide, it seems that many people do not want to associate their personal Facebook/Twitter/etc. logins with work-related social media (i.e., this effect was seen at more than just Cisco). The social media gurus here at Cisco have therefore dropped the social media login requirement in order to leave comments on Cisco blogs.
You can now leave blog comments in the same way you used to — just provide your name and email address.
Yay!
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Consider this a public service announcement: don’t forget that EuroMPI 2013 papers are due soon!
EuroMPI is the place to see where the documented standard of MPI hits reality, both in terms of implementations and applications. Come talk to real implementors, real users, and hear about state-of-the art techniques and performance optimizations.
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Every once in a while, the idea pops up again: why not use all the world’s cell phones for parallel and/or distributed computations? There’s gazillions of these phones — think of the computing power!
After all, an army of ants can defeat a war horse, right?
Well… yes… and no.
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Now that we’re just starting into the MPI-3.0 era, what’s next?
The MPI Forum is still having active meetings. What is left to do? Isn’t MPI “done”?
Nope. MPI is an ever-changing standard to meet the needs of HPC. And since HPC keeps changing, so does MPI.