| Project/Area Number |
62460222
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Informatics
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| Research Institution | Tokyo Institute of Technology, Faculty of Science |
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Principal Investigator |
YONEZAWA Akinori Tokyo Institute of Technology, Professor, 理学部, 教授 (00133116)
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| Co-Investigator(Kenkyū-buntansha) |
SHIBAYAMA Etsuya Tokyo Institute of Technology, Research Associate, 理学部, 助手 (80162642)
BRIOT J.-P. Tokyo Institute of Technology, Visiting Researcher
J.P. Briof 東京工業大学, 理学部及びハ゜リ大学第6校, 客員研究員
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| Project Period (FY) |
1988
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| Project Status |
Completed (Fiscal Year 1988)
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| Budget Amount *help |
¥6,100,000 (Direct Cost: ¥6,100,000)
Fiscal Year 1988: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1987: ¥3,700,000 (Direct Cost: ¥3,700,000)
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| Keywords | Programming Languages / Object-Oriented Computing / Parallel Processing / Language Implementation / デバッグ / オブジェクト指向 / 並列プログラミング / 分散型処理系 / ガーベジコレクション / オブジェクトグループ |
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| Research Abstract |
We designed a virtual distributed system for an object-oriented concurrent language ABCL/1 which consists of the virtual front-end processor and a pool of virtual node processors. Each object is implemented as a virtual stack machine which is executed on a virtual node processor. The language processor translate source code into the virtual stack machine code. Also, a noble distributed garbage collection scheme is presented which is used in our implementation. The scheme employs the Distributed Snapshot technique. A debugging method for Concurrent Object-Oriented Systems is developed. Our method is based upon a new notion called Object Groups. An Object Group is a collection of objects which forms a natural unit for performing collective tasks. The language constructs which specify and use Object Groups have been introduced into an object-oriented concurrent language ABCL/1.
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