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Dividing a Task and Executing it in Parallel on a Function-Classified Parallel Computer
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- OHTA MITSUHIKO
- Keio University
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- KOHNO MICHIMUNE
- Keio University
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- MAEZAWA TOSHIYUKI
- Keio University
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- ANZAI YUICHIRO
- Keio University
Bibliographic Information
- Other Title
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- 機能別並列計算機におけるタスクの分割・並列実行
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Description
In a functionally classified parallel computer, tasks which are functionally divided are both programmed and executed in parallel in each modules. But these operations are difficult. In this paper, we propose a system that divides a user task which includes some threads into some functional modules at a run time and executes these divided tasks in parallel. In this system, a thread which frequently accesses a particular device is executed in the module which has that device. We consider that this system can reduce inter-module communications between server threads which control the device and user threads. We implemented this system into μ-PULSER, an operating system for personal robot. We evaluated some basic thread operations in this system. The result shows that the cost of creating a remote thread is 2.7 times as long as that of creating a local thread. And we also evaluated the rate of inter-module communications. The result shows that it was reduced to 50% and that the response time of a event is reduced to 8.0%.
Journal
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- IPSJ SIG Notes
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IPSJ SIG Notes 117 7-12, 1996-03-05
Information Processing Society of Japan (IPSJ)
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Details 詳細情報について
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- CRID
- 1573387451877455232
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- NII Article ID
- 110002775303
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- NII Book ID
- AN10096105
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- ISSN
- 09196072
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- Text Lang
- ja
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- Data Source
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- CiNii Articles