Wed 20 Jun 2018 17:00 - 17:25 at Grand Ballroom AB - Transactions and Races Chair(s): Tatiana Shpeisman

We propose a new semantics for shared-memory parallel programs that gives strong guarantees even in the presence of data races. Our local data race freedom property guarantees that all data-race-free portions of programs exhibit sequential semantics. We provide a straightforward operational semantics and an equivalent axiomatic model, and evaluate an implementation for the OCaml programming language. Our evaluation demonstrates that it is possible to balance a comprehensible memory model with a reasonable (no overhead on x86, ~0.6% on ARM) sequential performance trade-off in a mainstream programming language.

Conference Day
Wed 20 Jun

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16:10 - 17:25
Transactions and RacesPLDI Research Papers at Grand Ballroom AB
Chair(s): Tatiana ShpeismanGoogle Brain
16:10
25m
Talk
The Semantics of Transactions and Weak Memory in x86, Power, ARM, and C++
PLDI Research Papers
Nathan ChongARM Ltd., Tyler SorensenImperial College London, John WickersonImperial College London
Media Attached
16:35
25m
Talk
MixT: A Language for Mixing Consistency in Geodistributed Transactions
PLDI Research Papers
Matthew MilanoCornell University, Andrew C. MyersCornell University
Media Attached
17:00
25m
Talk
Bounding Data Races in Space and Time
PLDI Research Papers
Stephen DolanUniversity of Cambridge, KC SivaramakrishnanUniversity of Cambridge, Anil MadhavapeddyOCaml Labs
Media Attached