## Continuations for Parallel Logic Programming (2000)

Venue: | In Proc. of 2nd International ACM-SIGPLAN Conference on Principles and practice of Declarative Programming (PPDP’00 |

Citations: | 4 - 3 self |

### BibTeX

@INPROCEEDINGS{Todoran00continuationsfor,

author = {Eneia Todoran and Nikolaos S. Papaspyrou},

title = {Continuations for Parallel Logic Programming},

booktitle = {In Proc. of 2nd International ACM-SIGPLAN Conference on Principles and practice of Declarative Programming (PPDP’00},

year = {2000},

pages = {257--267},

publisher = {ACM Press}

}

### OpenURL

### Abstract

This paper gives denotational models for three logic programming languages of progressive complexity, adopting the \logic programming without logic" approach. The rst language is the control ow kernel of sequential Prolog, featuring sequential composition and backtracking. A committedchoice concurrent logic language with parallel composition (parallel AND) and don't care nondeterminism is studied next. The third language is the core of Warren's basic Andorra model, combining parallel composition and don't care nondeterminism with two forms of don't know nondeterminism (interpreted as sequential and parallel OR) and favoring deterministic over nondeterministic computation. We show that continuations are a valuable tool in the analysis and design of semantic models for both sequential and parallel logic programming. Instead of using mathematical notation, we use the functional programming language Haskell as a metalanguage for our denotational semantics, and employ monads in order to facilitate the transition from one language under study to another. Keywords Parallel logic programming, basic Andorra model, denotational semantics, continuations, monads, Haskell. 1.