Deadlock detection in distributed system

In highly automated devices, deadlock is a case that occurs when no system can permit its event which may give irrelevant economic losses. A process can request or release resources that are either available or are on hold by others. If a process requesting a resource is not available at any time, then that process enters into the waiting state. But if a waiting state is not converted into its present state, it enters more than two processes are having an indefinite waiting state. The proposed algorithm gives an efficient way for deadlock detection. For the implementation of this work, C++ and python as the basic programming language are used. It gives an idea about how resources are allocated, and how few processes result in deadlock.

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Acute: High-level programming language design for distributed computation

Journal of Functional Programming ◽

10.1017/s0956796807006442 ◽

2007 ◽

Vol 17 (4-5) ◽

pp. 547-612 ◽

Cited By ~ 22

Author(s):

PETER SEWELL ◽

JAMES J. LEIFER ◽

KEITH WANSBROUGH ◽

FRANCESCO ZAPPA NARDELLI ◽

MAIR ALLEN-WILLIAMS ◽

...

Keyword(s):

Programming Language ◽

Distributed System ◽

Operational Semantics ◽

Module Structure ◽

Distributed Programming ◽

Type Safety ◽

Programming Language Design ◽

Local Resources ◽

Definition Of ◽

High Level

AbstractExisting languages provide good support for typeful programming of stand-alone programs. In a distributed system, however, there may be interaction between multiple instances of many distinct programs, sharing some (but not necessarily all) of their module structure, and with some instances rebuilt with new versions of certain modules as time goes on. In this paper, we discuss programming-language support for such systems, focussing on their typing and naming issues. We describe an experimental language, Acute, which extends an ML core to support distributed development, deployment, and execution, allowing type-safe interaction between separately built programs. The main features are (1) type-safe marshalling of arbitrary values; (2) type names that are generated (freshly and by hashing) to ensure that type equality tests suffice to protect the invariants of abstract types, across the entire distributed system; (3) expression-level names generated to ensure that name equality tests suffice for type safety of associated values, for example, values carried on named channels; (4) controlled dynamic rebinding of marshalled values to local resources; and (5) thunkification of threads and mutexes to support computation mobility. These features are a large part of what is needed for typeful distributed programming. They are a relatively lightweight extension of ML, should be efficiently implementable, and are expressive enough to enable a wide variety of distributed infrastructure layers to be written as simple library code above the byte-string network and persistent store APIs. This disentangles the language run-time from communication intricacies. This paper highlights the main design choices in Acute. It is supported by a full language definition (of typing, compilation, and operational semantics), by a prototype implementation, and by example distribution libraries.

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BETA Language Development: Survey Report, 1. November 1976

DAIMI Report Series ◽

10.7146/dpb.v6i65.6483 ◽

1977 ◽

Vol 6 (65) ◽

Cited By ~ 3

Author(s):

Bent Bruun Kristensen ◽

Ole Lehrmann Madsen ◽

Kristen Nygaard

Keyword(s):

Language Development ◽

Programming Language ◽

Present State ◽

Description Language ◽

System Description ◽

Survey Report ◽

Ongoing Work ◽

Computing Center ◽

High Level ◽

Systems Programming

<p>The report describes ongoing work within the Joint Language Project (JLP). Research workers from Aarhus aned Aalborg Universities. Denmark and the Norwegian Computing Center, Oslo, Norway participate in the project. The aim of the JLP is to consider new tools in programming by the development of a systems programming language BETA and a high level programming language GAMMA, both related to the system description language DELTA.</p><p>The present state of the ideas for BETA is presented. This report is also referred to as DELTA Project Working Note No. 3.</p>

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DISTRIBUTED DEADLOCK DETECTION ALGORITHMS

Parallel Processing Letters ◽

10.1142/s0129626492000143 ◽

1992 ◽

Vol 02 (01) ◽

pp. 21-30

Author(s):

MITCHELL FLATEBO ◽

AJOY KUMAR DATTA

Keyword(s):

Distributed Systems ◽

Distributed System ◽

The State ◽

Global Memory ◽

State Machines ◽

Deadlock Detection ◽

Global State ◽

Detection Algorithms ◽

Deadlock Resolution ◽

Global States

A distributed system consists of a set of loosely connected state machines which do not share a global memory. The global state of the system depends on the state of each process in the system. The set of global states can be split up into two categories, legal and illegal. This paper deals with methods of detecting deadlocks in distributed systems. One way that has been used to detect deadlocks is by sending probes around the system. If a process thinks that it may be deadlocked, it initiates a probe. If the probe is received by the initiator, the initiator declares deadlock. This paper uses the idea of states of processes In order to detect the deadlock. The algorithm runs continually and does not have to be initiated. This paper presents deadlock detection algorithms for single and multiple outstanding requests. A method for deadlock resolution is also discussed. The algorithms detect all deadlocks and do not detect false deadlocks.

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The Microscopy of Compatibility and Incompatibility in Ulmus

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010011934x ◽

1985 ◽

Vol 43 ◽

pp. 504-505

Author(s):

B. L. Redmond ◽

Christopher F. Bob

Keyword(s):

Dutch Elm Disease ◽

Economic Losses ◽

Hybrid Progeny ◽

Ulmus Pumila ◽

Ulmus Americana ◽

American Elm ◽

Asian Species ◽

Ulmus Parvifolia ◽

Initial Appearance ◽

Chinese Elm

The American Elm (Ulmus americana L.) has been plagued by Dutch Elm Disease (DED), a lethal disease caused by the fungus Ceratocystis ulmi (Buisman) c. Moreau. Since its initial appearance in North America around 1930, DED has wrought inexorable devastation on the American elm population, triggering both environmental and economic losses. In response to the havoc caused by the disease, many attempts have been made to hybridize U. americana with a few ornamentally less desirable, though highly DED resistant, Asian species (mainly the Siberian elm, Ulmus pumila L., and the Chinese elm Ulmus parvifolia Jacq.). The goal is to develop, through breeding efforts, hybrid progeny that display the ornamentally desirable characteristics of U. americana with the disease resistance of the Asian species. Unfortunately, however, all attempts to hybridize U. americana have been prevented by incompatibility. Only through a firm understanding of both compatibility and incompatibility will it be possible to circumvent the incompatibility and hence achieve hybridization.

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Programming Language for Severely Retarded Children

Language Speech and Hearing Services in Schools ◽

10.1044/0161-1461.0904.213 ◽

1978 ◽

Vol 9 (4) ◽

pp. 213-219

Author(s):

Carol McCall Davis

Keyword(s):

Programming Language ◽

Mentally Retarded ◽

Mentally Retarded Children

This article describes methods of language programming for profoundly mentally retarded children that are based on linguistic principles. Examples of program contents are drawn from research reports and include cuing procedures, as well as progress from receptive through imitative behaviors, labeling responses, and grammatical sequencing.

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