May 2009 - Posts

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Actors in F# – The Bounded Buffer Problem by podwysocki

In the previous post , I covered an example of an auction simulation using asynchronous message passing and a shared nothing approach using the MailboxProcessor class in F#. The auction example was a great piece to demonstrate scalability by adding additional...
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[ANN] DC ALT.NET – 5/27/2009 – Introduction to Pair Programming by podwysocki

The DC ALT.NET group is continuing the back to basics approach with this month covering an introduction to pair programming. It’s part of our commitment to the community to encourage such practices as in our previous sessions on Test Driven Development...
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F# Actors Revisited by podwysocki

UPDATE: Removed ref cells to use two recursive loops In the previous post , I covered briefly about the actor model in F#. This style of concurrency, using asynchronous message passing and a shared-nothing approach through the use of mailboxes is a pretty...
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Axum – Ping Pong with Dataflow Networks by podwysocki

In the previous post , I gave the canonical Ping-Pong example in Axum and how it compared with Axum. I want to revisit this post because there are some areas in which we can rework it in addition to the other solutions we’ll visit. Some parts were needlessly...
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Axum – Introduction and Ping Pong Example by podwysocki

As it was announced last week , Axum, a .NET Domain Specific Language around safe, scalable parallel programming through the actor model and message passing was released to the world as a CTP. It was noted, that although this is an initial release, that...
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Axum Hits CTP by podwysocki

As I relayed in an earlier post about the soon availability of Axum, well, today is the day . I noted before that Microsoft has still not decided whether to release this as a real project, and needs feedback from users like yourself. On the Axum site...
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Type Classes Are The Secret Sauce by podwysocki

I came across a recent post on adding Ruby and C# operators to F# that sparked a few thoughts in my head. The post was good, but yet there were operators that already existed for some of the operations mentioned such as the defaultArg and ( @ ). But what...
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Functionally Implementing Intersperse by podwysocki

This week while seeming to put off finishing many other blog posts on type classes, Collective Intelligence, the war on foreach and so on, I found myself intrigued by solving a simple problem in F# and look at the tradeoffs. This post is meant to be a...
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Axum, Reactive Framework and other Lang.net items by podwysocki

A few weeks ago, the 2009 Lang.NET symposium was came and went and there were a few talks that caught my eye. There were many great talks including those by some of the following luminaries: Philip Wadler Erik Meijer Anders Hejlsberg Mads Torgersen Lars...
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Functional Composition and Partial Application by podwysocki

In the past couple of posts, I’ve been talking about functional composition in regards to explaining its relevance to C#. I thought I’d step back just a little though and explain more of the fundamentals in a more natural functional language such as Haskell...
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