NDLI: Using memory mapping to support cactus stacks in work-stealing runtime systems

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Using memory mapping to support cactus stacks in work-stealing runtime systems

Content Provider	ACM Digital Library
Author	Leiserson, Charles E. Lee, I-Ting Angelina Boyd-Wickizer, Silas Huang, Zhiyi
Abstract	Many multithreaded concurrency platforms that use a work-stealing runtime system incorporate a "cactus stack," wherein a function's accesses to stack variables properly respect the function's calling ancestry, even when many of the functions operate in parallel. Unfortunately, such existing concurrency platforms fail to satisfy at least one of the following three desirable criteria: full interoperability with legacy or third-party serial binaries that have been compiled to use an ordinary linear stack, a scheduler that provides near-perfect linear speedup on applications with sufficient parallelism, and bounded and efficient use of memory for the cactus stack. We have addressed this cactus-stack problem by modifying the Linux operating system kernel to provide support for thread-local memory mapping (TLMM). We have used TLMM to reimplement the cactus stack in the open-source Cilk-5 runtime system. The Cilk-M runtime system removes the linguistic distinction imposed by Cilk-5 between serial code and parallel code, erases Cilk-5's limitation that serial code cannot call parallel code, and provides full compatibility with existing serial calling conventions. The Cilk-M runtime system provides strong guarantees on scheduler performance and stack space. Benchmark results indicate that the performance of the prototype Cilk-M 1.0 is comparable to the Cilk 5.4.6 system, and the consumption of stack space is modest.
Starting Page	411
Ending Page	420
Page Count	10
File Format	PDF
ISBN	9781450301787
DOI	10.1145/1854273.1854324
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2010-09-11
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Work stealing Serial-parallel reciprocity Cilk Memory mapping Cactus stack Interoperability
Content Type	Text
Resource Type	Article

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