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• Load Balance and Parallel Performance

  Load balancing an application workload among threads is critical to performance. However, achieving perfect load balance is non-trivial, and it depends on the parallelism within the application, workload, the number of threads, load balancing policy, and the threading implementation.

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• How employable am I as a programmer?

  - by dsimcha

  I'm currently a Ph.D. student in Biomedical Engineering with a concentration in computational biology and am starting to think about what I want to do after graduate school. I feel like I've accumulated a lot of programming skills while in grad school, but taken a very non-traditional path to learning all this stuff. I'm wondering whether I would…

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• SQL Server Connections Fall 2011 - Demos

  - by Adam Machanic

  Today is the last day of the annual SQL Server Connections show in Vegas, and I've just completed my third and final talk. (Now off to find a frosty beverage or two.) This year I did three sessions: SQL302: Parallelism and Performance: Are You Getting Full Return on Your CPU Investment? Over the past five years, multi-core processors have made the…

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• Google I/O 2010 - Batch data processing with App Engine

  Google I/O 2010 - Batch data processing with App Engine Google I/O 2010 - Batch data processing with App Engine App Engine 201 Mike Aizatsky In this session, attendees will learn how to write map() functions, how to do simple reduce() operations, how to run these over large datasets, and how App Engine is used to accomplish such parallelism. For…

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• Shows how to use the new Tasks namespace to download multiple documents in parallel.

  In C# 4.0, Task parallelism is the lowest-level approach to parallelization with PFX. The classes for working at this level are defined in the System.Threading.Tasks namespace.  read moreBy Peter BrombergDid you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in…

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• Ideas for pet concurrent applications [closed]

  - by DJoyce

  As part of research I am doing into functional concurrent programming, I am looking to develop a prototype business application (or otherwise), that requires and supports parallelism. So I will first develop this application in java 7, followed by scala and then clojure while demonstrating the concurrent support in each language. However, I am…

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• How John Got 15x Improvement Without Really Trying

  - by rchrd

  The following article was published on a Sun Microsystems website a number of years ago by John Feo. It is still useful and worth preserving. So I'm republishing it here.  How I Got 15x Improvement Without Really Trying John Feo, Sun Microsystems Taking ten "personal" program codes used in scientific and engineering research, the…

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• Inappropriate Updates?

  - by Tony Davis

  A recent Simple-talk article by Kathi Kellenberger dissected the fastest SQL solution, submitted by Peter Larsson as part of Phil Factor's SQL Speed Phreak challenge, to the classic "running total" problem. In its analysis of the code, the article re-ignited a heated debate regarding the techniques that should, and should not, be deemed…

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• DirectX: Game loop order, draw first and then handle input?

  - by Ricket

  I was just reading through the DirectX documentation and encountered something interesting in the page for IDirect3DDevice9::BeginScene : To enable maximal parallelism between the CPU and the graphics accelerator, it is advantageous to call IDirect3DDevice9::EndScene as far ahead of calling present as possible. I've been…

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• Data Warehouse Best Practices

  - by jean-pierre.dijcks

  In our quest to share our endless wisdom (ahem…) one of the things we figured might be handy is recording some of the best practices for data warehousing. And so we did. And, we did some more… We now have recreated our websites on Oracle Technology Network and have a separate page for best practices, parallelism and other cool topics…

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• Auto DOP and Concurrency

  - by jean-pierre.dijcks

  After spending some time in the cloud, I figured it is time to come down to earth and start discussing some of the new Auto DOP features some more. As Database Machines (the v2 machine runs Oracle Database 11.2) are effectively selling like hotcakes, it makes some sense to talk about the new parallel features in more detail. For…

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• SQL SERVER – SQLServer Quiz 2011 – Do you know your execution plan – Two questions – One Answer

  - by pinaldave

  My friend Jacob Sebastian has SQL Server Quiz 2011 launched. This time when he asked me to come up with quiz question – I wanted to come up with something which is new and make participant to think about it. After carefully thinking I come with question which I really like to solve myself. Here is the details: 1) Using Single…

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• Parallel Computing Platform Developer Lab

  This is an exciting announcement that I must share: "Microsoft Developer & Platform Evangelism, in collaboration with the Microsoft Parallel Computing Platform product team, is hosting a developer lab at the Platform Adoption Center on April 12-15, 2010.  This event is for Microsoft Partners and Customers seeking…

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• A better way to do concurrent programming

  - by Alex.Davies

  Programming to take advantage of multicore processors is hard. If you let multiple threads access the same memory, bad things happen. To avoid this, you use the lock keyword, but if you use that in the wrong way, your code deadlocks. It's all a nightmare. Luckily, there's a better way - Actors. They're really easy to think…

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• SQL Saturday #220 - Atlanta - Pre-Con Scholarship Winners!

  - by Most Valuable Yak (Rob Volk)

  A few weeks ago, AtlantaMDF offered scholarships for each of our upcoming Pre-conference sessions at SQL Saturday #220. We would like to congratulate the winners! David Thomas SQL Server Security http://sqlsecurity.eventbrite.com/ Vince Bible …

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• Slides for Parallel Debugging windows

  Recently I gave a talk at our Microsoft Shanghai offices on Parallel Programming so I had to update my existing Beta1 deck to Beta2 content. Specifically for Parallel Tasks and Parallel Stacks, I used 5 slides to accompany the demo.In case you are giving talks on parallelism within Visual Studio 2010, please feel free to…

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• What do you look for in a scripting language?

  - by Jon Purdy

  I'm writing a little embedded language for another project. While game development was not its original intent, it's starting to look like a good fit, and I figure I'll develop it in that vein at some point. Without revealing any details (to avoid bias), I'm curious to know: What features do you love in a scripting…

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• C++ AMP recording and slides

  - by Daniel Moth

  Yesterday we announced C++ Accelerated Massive Parallelism. Many of you want to know more about the API instead of just meta information. I will trickle more code over the coming months leading up to the date when we will share actual bits. Until you have bits in your hand, it is only your curiosity that is…

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• Technical Computing

    Today, Microsoft announced our Technical Computing initiative.    Through the Technical Computing initiative, we will enable scientists, engineers and analysts to more easily model the world at much greater fidelity.  The Technical Computing initiative will address a wide range of…

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• Video: Analyzing Big Data using Oracle R Enterprise

  - by Sherry LaMonica

  Learn how Oracle R Enterprise is used to generate new insight and new value to business, answering not only what happened, but why it happened. View this YouTube Oracle Channel video overview describing how analyzing big data using…

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• Is there any working implementation of reverse mode automatic differentiation for Haskell?

  - by Ian Fiske

  The closest-related implementation in Haskell I have seen is the forward mode at http://hackage.haskell.org/packages/archive/fad/1.0/doc/html/Numeric-FAD.html. The closest related related research appears to be reverse mode for another functional language related to Scheme at…

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• Parallel Extensions Equivalent in Java

  - by peter.newhook

  I have some experience using parallel extensions in .Net development, but I was looking at doing some work in Java that would benefit from an easy to use parallelism library. Does the JVM offer any comparable tools to parallel-extensions?

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• Canonical pattern reference in Actors programming model.

  - by Bubba88

  Hello! Is there a source, which I could use to learn some of the most used and popular practices regarding Actor-/Agent-oriented programming. My primary concern is about parallelism and distribution limited to the mentioned scheme - Actors, message passing. Should I begin…

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• Is it OK to try to use Plinq in all Linq queries?

  - by Tony_Henrich

  I read that PLinq will automatically use non parallel Linq if it finds PLinq to be more expensive. So I figured then why not use PLinq for everything (when possible) and let the runtime decide which one to use. The apps will be deployed to multicore servers and I am OK to…

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• re: adding more threads to forkjoinpool

  - by paintcan

  Word up y'all I recently successfully experimented with Scala futures, got future { my shiznit } all over da place. I'm pleased as punch w/ the gains I'm seeing from the parallelism and whatnot, but I'm only seeing 4 worker threads. Wanna see some more. I've been looking…

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