Distrbution and Abstract Types in Emerald

Black, Andrew P.; Hutchinson, Norman C.; Jul, Eric; Levy, Henry M.; Carter, L.

doi:10.1109/tse.1987.232836

Cited by 339 publications

(77 citation statements)

References 23 publications

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“…In recent years, several object based and object-oriented paradigms such as Emerald [9], Orca [7], CHARM++ [27], and Mentat [18] have been proposed for distributed computing. Processes are replaced by objects.…”

Section: Existing Distributed Programming Approachesmentioning

confidence: 99%

Anonymous remote computing: a paradigm for parallel programming on interconnected workstations

Joshi

Ram

1999

IIEEE Trans. Software Eng.

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Abstract-Parallel computing on interconnected workstations is becoming a viable and attractive proposition due to the rapid growth in speeds of interconnection networks and processors. In the case of workstation clusters, there is always a considerable amount of unused computing capacity available in the network. However, heterogeneity in architectures and operating systems, load variations on machines, variations in machine availability, and failure susceptibility of networks and workstations complicate the situation for the programmer. In this context, new programming paradigms that reduce the burden involved in programming for distribution, load adaptability, heterogeneity, and fault tolerance gain importance. This paper identifies the issues involved in parallel computing on a network of workstations. The Anonymous Remote Computing (ARC) paradigm is proposed to address the issues specific to parallel programming on workstation systems. ARC differs from the conventional communicating process model by treating a program as one single entity consisting of several loosely coupled remote instruction blocks instead of treating it as a collection of processes. The ARC approach results in distribution transparency and heterogeneity transparency. At the same time, it provides fault tolerance and load adaptability to parallel programs on workstations. ARC is developed in a two-tiered architecture consisting of high level language constructs and low level ARC primitives. The paper describes an implementation of the ARC kernel supporting ARC primitives.

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Section: Existing Distributed Programming Approachesmentioning

confidence: 99%

Anonymous remote computing: a paradigm for parallel programming on interconnected workstations

Joshi

Ram

1999

IIEEE Trans. Software Eng.

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“…• Conformity type checking and parameter polymorphism analogous to the conformity type system implemented in Emerald [8,57] is used for safe, efficient, and flexible typing with static/dynamic checks.…”

Section: Other Features Concerning Typesmentioning

confidence: 99%

“…The Emerald programming language has been developed since 1984 as a tool for writing distributed subsystems and applications [8,34]. It is statically typed, and bases its type checking on an inclusion relation called conformity.…”

Section: Andrew Blackmentioning

confidence: 99%

Types, Inheritance and Assignments: A collection of position papers from the ECOOP '91 workshop W5 (Geneva, Switzerland, 1991, 15-19 July)

Palsberg¹,

Schwartzbach²

1991

DPB

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This collection contains the positions of most of the 31 participants at the ECOOP'91 W5 Workshop on ''Types, Inheritance and Assignments''. The workshop was organized in connection with the Fifth Annual European Conference on Object-Oriented Programming, July 15-19 in Geneva, Switzerland. The workshop took place July 16, 9.00-17.30. In addition to the 21 submitted position papers, the collection includes an invited paper by Luca Cardelli. The focus of the workshop is on the premises, results, and aspirations of research in object-oriented type systems.

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“…In general, it is difficult to model interprocess communication and global serialization requited by many applications using this scheme. [30] and objects in'object-based systems [9][10][11][12][13][14][15][16]. By adding persistent actors to the macro data-flow model, the arcs between actors in a program graph no long completely specify all dependencies between all granules of computation carried out by the system.…”

Section: Regular Actors Have the Following Characteristicsmentioning

confidence: 99%

“…By hiding the implementation details (algorithms and data structures) it is felt that more reliable and secure software can be constructed, and software re-use and maintenance can be simplified. The object-oriented abstraction has been brought to bear on many distributed systems projects, well known examples of which include Eden and Emerald at the University of Washington [13][14], Clouds at Georgia Tech [15], and Argus at MIT [16].…”

Section: Introductionmentioning

confidence: 99%

Mentat: An object-oriented macro data flow system

Grimshaw

Liu

1987

SIGPLAN Not.

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Mentat is an object-oriented macro data flow system designed to facilitate parallelism in distributed systems. Its underlying model of computation is the macro data flow model. The Macro data flow model is similar to the traditional, large grain data flow model with two differences: (1) Some macro actors are persistent actors that maintain state information between firings; (2) Program graphs are dynamic. Macro data flow programs are represented by dynamic structures called future lists that may be constructed and modified at run time. This paper discusses the motivation of the macro data flow model; the relationship between objects, actors, and tokens; the use of future lists; extensions to the programming language C++ for writing macro data flow programs; and the structure of a virtual macro data flow machine for executing macro data flow programs.

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Distrbution and Abstract Types in Emerald

Cited by 339 publications

References 23 publications

Anonymous remote computing: a paradigm for parallel programming on interconnected workstations

Anonymous remote computing: a paradigm for parallel programming on interconnected workstations

Types, Inheritance and Assignments: A collection of position papers from the ECOOP '91 workshop W5 (Geneva, Switzerland, 1991, 15-19 July)

Mentat: An object-oriented macro data flow system

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