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How to reduce and tolerate communication costs
Thursday, April 12, 2018
3:00 pm - 4:00 pm
Gross Hall, Ahmadieh Family Grand Hall, Room 330
Scott Baden, Group Lead, Computer Languages and System Software Group Computational Research Division Lawrence Berkeley National Laboratory
I will describe recent work in two projects aimed at reducing the impact of steadily increasing communication costs on scalable systems. The first is UPC++, a C++ PGAS library that leverages the GASNet-EX communication library to deliver close to the metal communication performance. The second is MATE, a domain specific translator that restructures MPI applications to tolerate communication by hiding it behind available communication. The benefit of UPC++ comes from its support for one-sided communication and remote procedure call. The performance of MATE's translated code is competitive with that of manual restructuring. Bio: Dr. Baden received his M.S and PhD in Computer Science from UC Berkeley in 1982 and 1987. He is also Adjunct Professor in the Department of Computer Science and Engineering at UCSD, where he was a faculty member for 27 years. His research interests are in high performance and scientific computation: domain specific translation, abstraction mechanisms, run times, and irregular problems.