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| Content Provider | ACM Digital Library |
|---|---|
| Author | Fluet, Matthew Rainey, Mike Reppy, John |
| Abstract | The trend in microprocessor design toward multicore and manycore processors means that future performance gains in software will largely come from harnessing parallelism. To realize such gains, we need languages and implementations that can enable parallelism at many different levels. For example, an application might use both explicit threads to implement course-grain parallelism for independent tasks and implicit threads for fine-grain data-parallel computation over a large array. An important aspect of this requirement is supporting a wide range of different scheduling mechanisms for parallel computation. In this paper, we describe the scheduling framework that we have designed and implemented for Manticore, a strict parallel functional language. We take a micro-kernel approach in our design: the compiler and runtime support a small collection of scheduling primitives upon which complex scheduling policies can be implemented. This framework is extremely flexible and can support a wide range of different scheduling policies. It also supports the nesting of schedulers, which is key to both supporting multiple scheduling policies in the same application and to hierarchies of speculative parallel computations. In addition to describing our framework, we also illustrate its expressiveness with several popular scheduling techniques. We present a (mostly) modular approach to extending our schedulers to support cancellation. This mechanism is essential for implementing eager and speculative parallelism. We finally evaluate our framework with a series of benchmarks and an analysis. |
| Ending Page | 252 |
| Page Count | 12 |
| Starting Page | 241 |
| File Format | PDF MP4 MP2 / MPA / MP3 |
| ISBN | 9781595939197 |
| DOI | 10.1145/1411204.1411239 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2008-09-20 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Heterogeneous parallel languages Scheduling Run-time systems Compilers |
| Content Type | Audio Text |
| Resource Type | Article |
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