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Synchronization via scheduling: techniques for efficiently managing concurrent shared memory accesses

机译:通过调度进行同步:有效管理并发共享内存访问的技术

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摘要

The recent shift to multi-core computing has meant more programmers are required to write parallel programs. This is a daunting task even for experienced programmers due to the complexity and challenges involved in parallel programming. Key among these issues is managing concurrent accesses to shared memory. Unfortunately, most existing approaches rely on synchronization primitives that leave the complexity of protecting shared memory to the programmer and those that have attempted to automatically protect shared memory have achieved limited success. To address the issue of shared memory management while mitigating the limitations of existing approaches, we introduce a new technique called Synchronization via Scheduling (SvS). SvS provides efficient and automatic protection of shared memory by combining static and dynamic analysis to determine the set of possible memory accesses a block of code makes before it is executed and schedules these blocks such that no two blocks concurrently access the same memory.
机译:最近向多核计算的转变意味着需要更多的程序员来编写并行程序。由于并行编程涉及的复杂性和挑战,即使对于有经验的程序员来说,这也是一项艰巨的任务。这些问题中的关键是管理对共享内存的并发访问。不幸的是,大多数现有方法都依赖于同步原语,这种原语将保护共享内存的复杂性留给了程序员,而那些尝试自动保护共享内存的方法则取得了有限的成功。为了解决共享内存管理的问题同时减轻现有方法的局限性,我们引入了一种称为“通过计划同步”(SvS)的新技术。 SvS通过组合静态和动态分析来确定代码块在执行之前对可能进行的内存访问的集合,并调度这些块以使没有两个块同时访问同一内存,从而提供了共享内存的高效,自动保护。

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    Mottishaw Shane Joseph;

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  • 年度 2011
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