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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Andrade, G. Ferreira, R. Teodoro, G. Rocha, L. Saltz, J.H. Kurc, T. |
| Copyright Year | 2014 |
| Description | Author affiliation: Fed. Univ. of Minas Gerais, Belo Horizonte, Brazil (Andrade, G.; Ferreira, R.) || Fed. Univ. of Sao Joao del Rei, Sao Joao del Rei, Brazil (Rocha, L.) || Stony Brook Univ., Stony Brook, NY, USA (Saltz, J.H.; Kurc, T.) || Univ. of Brasilia, Brasilia, Brazil (Teodoro, G.) |
| Abstract | High performance computing is experiencing a major paradigm shift with the introduction of accelerators, such as graphics processing units (GPUs) and Intel Xeon Phi (MIC). These processors have made available a tremendous computing power at low cost, and are transforming machines into hybrid systems equipped with CPUs and accelerators. Although these systems can deliver a very high peak performance, making full use of its resources in real-world applications is a complex problem. Most current applications deployed to these machines are still being executed in a single processor, leaving other devices underutilized. In this paper we explore a scenario in which applications are composed of hierarchical dataflow tasks which are allocated to nodes of a distributed memory machine in coarse-grain, but each of them may be composed of several finer-grain tasks which can be allocated to different devices within the node. We propose and implement novel performance aware scheduling techniques that can be used to allocate tasks to devices. We evaluate our techniques using a pathology image analysis application used to investigate brain cancer morphology, and our experimental evaluation shows that the proposed scheduling strategies significantly outperforms other efficient scheduling techniques, such as Heterogeneous Earliest Finish Time - HEFT, in cooperative executions using CPUs, GPUs, and Masc. also experimentally show that our strategies are less sensitive to inaccuracy in the scheduling input data and that the performance gains are maintained as the application scales. |
| Starting Page | 89 |
| Ending Page | 96 |
| File Size | 1238482 |
| Page Count | 8 |
| File Format | |
| ISBN | 9781479969050 |
| ISSN | 15506533 |
| DOI | 10.1109/SBAC-PAD.2014.15 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-10-22 |
| Publisher Place | France |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Microwave integrated circuits Graphics processing units Performance evaluation Processor scheduling Central Processing Unit Image analysis |
| Content Type | Text |
| Resource Type | Article |
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