A Discipline of Multiprogramming: Programming Theory for by Jayadev Misra PDF

By Jayadev Misra

ISBN-10: 0387952063

ISBN-13: 9780387952062

During this e-book, a programming version is built that addresses the basic problems with 'large-scale programming'. The process unifies a number of suggestions from database idea, object-oriented programming and designs of reactive structures. The version and the linked concept has been christened "Seuss." the key target of Seuss is to simplify multiprogramming. To this finish, the worry of concurrent implementation is separated from the middle software layout challenge. A software execution is known as a unmarried thread of keep watch over - sequential executions of activities which are selected in accordance with a few scheduling coverage. for this reason, it's attainable to cause in regards to the homes of a application from its unmarried execution thread.

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Additional info for A Discipline of Multiprogramming: Programming Theory for Distributed Applications (Monographs in Computer Science)

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4 Examples 29 We translate this program to the action system shown below. h, which are controlled by external boxes. h is manipulated similarly. The fact that every critical section is eventually completed is simulated by setting m to 0 sometime after it becomes 3 (similarly for n). h 1\ n = 0 -+ v,n:= true, 1 n = 1 -+ turn, n := false, 2 n=21\ (,u V turn) -+ n:=3 ~ n = 3 -+ v, n := false, 0 end{mutex} Proof of mutual exclusion We constructed program mutex through a series of transformations starting from the program that used a shared queue.

We prescribe an action system whose implementation results in Dijkstra's algorithm. , reaching a fixed point); this is in contrast to traditional derivations, where most of the effort is directed toward postulating and maintaining the appropriate invariant. 32 2. Action Systems The shortest path problem Given is a finite directed graph that has (1) a source node, henceforth, designated by s, and (2) for each edge (i,j) a non-negative real number, Wij, called its length. The length of a path is the sum of the edge lengths along the path.

Mathematically, an action is a binary relation over the state space. For any state, an action describes a set of successor states. If the successor set of state 8 has exactly one state, the effect of the action is to transform 8 to its unique successor; such is the case for the odometer, described above. If the successor set has more than one state, the current state is transformed to any of its successors; such an action is called nondeterministic. If the successor set is empty, the action is not enabled in the given state.

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A Discipline of Multiprogramming: Programming Theory for Distributed Applications (Monographs in Computer Science) by Jayadev Misra

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