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[ANN] DC ALT.NET – 1/27/2010 - Clojure by podwysocki

The next meeting of DC ALT.NET will be held on January 27th from 7-9PM on Clojure with Craig Andera . Previously, he gave a talk about spending some time in Common Lisp and some of the lessons learned during his adventures. You may have noticed a lot...

Introduction to the Reactive Framework Part V by podwysocki

In the previous post of the Introduction to the Reactive Framework series, we covered how to create new IObservable<T> instances, either from scratch or from existing sequences. What this allowed us to do was turn an operation which was previously...

Introducing the Reactive Framework Part I by podwysocki

During my series about first class events in F#, I made frequent mention of the LiveLabs Reactive Framework (Rx), without going into much detail as to what it is. Now that the series is complete and we understand both how F# first class events work, as...

Pondering Axum + F# by podwysocki

It’s been a while since I’ve posted about Axum as I’ve been posting about other asynchronous and parallel programming models. After two releases of the Axum standalone language and lots of good user feedback, it’s time to ponder what could be with Axum...

Dryad/DryadLINQ and Project Trident Released by podwysocki

There has been a lot of talk going around involving the Microsoft Worldwide Partner Conference 2009 , but another event, largely overshadowed, was the 10th annual Microsoft Research Faculty Summit . During this summit, Tony Hey , the Microsoft External...
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F# – Async Running with Continuation Scissors by podwysocki

As you may have noticed, I’ve been covering a bit about concurrency on this blog lately, and for good reason. Between Axum, Erlang, Scala and F#, there is a lot to explore with actor model concurrency, task based concurrency, data parallel applications...

Axum – Ping Pong with Ordered Interaction Points by podwysocki

UPDATE: Removed code and explained that what I had was not intended behavior After a slight diversion into F# mailbox processing, it’s time to come back to talk a little bit more about Axum . In our last Axum post , we discussed using dataflow networks...
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When Side Effects and Laziness Collide by podwysocki

While working on a side project recently, I came to rediscover some of the consequences of one of my earlier posts on “Side Effects and Functional Programming” . It’s important that we realize that when we are creating our programs to beware of lazy evaluation...

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...

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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