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| Content Provider | ACM Digital Library |
|---|---|
| Author | Hassaan, Muhammad Amber Nguyen, Donald D. Pingali, Keshav K. |
| Abstract | Task graphs or dependence graphs are used in runtime systems to schedule tasks for parallel execution. In problem domains such as dense linear algebra and signal processing, dependence graphs can be generated from a program by static analysis. However, in emerging problem domains such as graph analytics, the set of tasks and dependences between tasks in a program are complex functions of runtime values and cannot be determined statically. In this paper, we introduce a novel approach for exploiting parallelism in such programs. This approach is based on a data structure called the kinetic dependence graph (KDG), which consists of a dependence graph together with update rules that incrementally update the graph to reflect changes in the dependence structure whenever a task is completed. We have implemented a simple programming model that allows programmers to write these applications at a high level of abstraction, and a runtime within the Galois system [15] that builds the KDG automatically and executes the program in parallel. On a suite of programs that are difficult to parallelize otherwise, we have obtained speedups of up to 33 on 40 cores, out-performing third-party implementations in many cases. |
| Starting Page | 457 |
| Ending Page | 471 |
| Page Count | 15 |
| File Format | |
| ISSN | 03621340 15581160 |
| DOI | 10.1145/2775054.2694363 |
| Journal | ACM SIGPLAN Notices (SIGP) |
| Volume Number | 50 |
| Issue Number | 4 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 1983-05-01 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Kinetic dependence graph Ordered algorithms Stable-source and unstable-source algorithms |
| Content Type | Text |
| Resource Type | Article |
| Subject | Computer Graphics and Computer-Aided Design Software |
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