20-21 November 2014

15Hatfields, London, UK

Practical parallel, asynchronous and concurrent programming with Hopac

Session Title

Practical parallel, asynchronous and concurrent programming with Hopac

Session Type Tutorial
Duration 60 minutes
Session Description

Hopac is a recently developed library for F#, based on ideas from languages like Concurrent ML and Cilk, with the aim of making it easier to write correct, modular and efficient parallel, asynchronous and concurrent programs. Compared to the Async and MailboxProcessor mechanisms of F#, Hopac directly provides more expressive concurrency abstractions and better performance.

This tutorial is an introduction to programming with Hopac. First, we will briefly look at the history of Concurrent ML and the idea of synchronous abstractions that it put forth. We will then discuss how Hopac, like Cilk, is designed to scale to multiple cores and, like Concurrent ML, as the number of concurrent threads and communication channels is increased, making pervasive use of parallelism, asynchrony and concurrency practical. We will then take a closer look at programming with Hopac through a series of examples illustrating the flexibility and modularity offered by the use of light-weight threads and first-class, higher-order, selective concurrent communication primitives. We will close with a look at future directions for Hopac and questions.


Vesa Karvonen (Independent)

Vesa is an experienced functional programmer with a long time interest in the design and implementation of programming languages, embedded domain specific languages and in datatype generic programming and functional programming in particular.

Vesa first started programming in 1990, has been programming professionally since 1996, and has been using functional programming in his professional work dating back to 2001, using languages such as OCaml, Scheme, Standard ML and F#.

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