internet archive - Page 217

Why Code Coverage Tools Should Be in Every Developer's Toolbox

Explore the world of code coverage tools that help developers create better code in less time.

Why Code Coverage Tools Should Be in Every Developer's Toolbox

Explore the world of code coverage tools that help developers create better code in less time.

Integrate your Cloud Computing Apps with Salesforce.com, Java

New integration patterns have emerged to enable many applications to migrate to the cloud while leveraging existing infrastructure.

Integrate your Cloud Computing Apps with Salesforce.com, Java

New integration patterns have emerged to enable many applications to migrate to the cloud while leveraging existing infrastructure.

Integrate your Cloud Computing Apps with Salesforce.com, Java

New integration patterns have emerged to enable many applications to migrate to the cloud while leveraging existing infrastructure.

Using PHP Encryption for Login Authentication

Webreference: "Following up on "Implementing One-way Encryption in PHP," my previous tutorial about using one-way encryption to build a secure online diary application, this article explores using PHP encryption for login authentication."

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Using PHP Encryption for Login Authentication

Learn how to use PHP encryption to ensure that only authorized users gain access to your Web applications.

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Making the Case for Centralized WLAN Management

With just one vendor to call and one bill to pay, Charlie Schluting argues that managing a WLAN with central controllers is the way to go, and explains how that works with Cisco gear.

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How to Make a Steve Jobs Cheese Head

Serious Eats: "Carve Steve's head out of a block of mozzerella, add some black pepper for hair, stick on a pair of glasses, and you've got the perfect centerpiece for your iPad launch party."

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Double-Take, Amazon Move Disaster Recovery to the Cloud

Double-Take's backup software and Amazon EC2 give smaller businesses the equivalent of a disaster recovery site in the cloud.

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Which Web Application Stack Is Best for Me?

Looking for a web application stack? Find out all the important distinctions and trade-offs among the available solutions from the points-of-view of a few developer types.

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A Guide to Small Business Color Laser Printers

Confused by all the options when it comes to choosing a small business printer? This handy guide provides everything you need to buy a color laser printer that suits both your needs and your budget.

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Most Influential Women in Technology 2010: Pamela Jones

Fast Company: "Groklaw is an attempt to get geeks and lawyers together, so they can help each other understand the other's world, with the goal of ideally getting better court results based on technical realities"

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DIYers Hack Windows Mobile Phones to Run Android

Wired: "Windows Mobile may lack the elegance of more modern operating systems, but some phones based on Microsoft's mobile OS are finding new life as Android handsets."

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Do Palm's Struggles Forecast Apple's Post Jobs Decline?

Steve Jobs is unique in the market but his skills likely wont remain in Apple when he leaves.

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Claws Mail: Mail with Attitude

Linux Magazine: "When other mailers aren’t doing the trick, it’s time to break out Claws: An extremely configurable and extensible GUI mailer that gives you all the control you’d ever want over your mail without sacrificing ease of use."

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Six Key Trends in Quality Assurance Testing

One Infosys expert explains why the QA landscape is undergoing a major transformation.

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Windows Azure Use Case: High-Performance Computing (HPC)

- by BuckWoody

This is one in a series of posts on when and where to use a distributed architecture design in your organization's computing needs. You can find the main post here: http://blogs.msdn.com/b/buckwoody/archive/2011/01/18/windows-azure-and-sql-azure-use-cases.aspx Description: High-Performance Computing (also called Technical Computing) at its most simplistic is a layout of computer workloads where a “head node” accepts work requests, and parses them out to “worker nodes'”. This is useful in cases such as scientific simulations, drug research, MatLab work and where other large compute loads are required. It’s not the immediate-result type computing many are used to; instead, a “job” or group of work requests is sent to a cluster of computers and the worker nodes work on individual parts of the calculations and return the work to the scheduler or head node for the requestor in a batch-request fashion. This is typical to the way that many mainframe computing use-cases work. You can use commodity-based computers to create an HPC Cluster, such as the Linux application called Beowulf, and Microsoft has a server product for HPC using standard computers, called the Windows Compute Cluster that you can read more about here. The issue with HPC (from any vendor) that some organization have is the amount of compute nodes they need. Having too many results in excess infrastructure, including computers, buildings, storage, heat and so on. Having too few means that the work is slower, and takes longer to return a result to the calling application. Unless there is a consistent level of work requested, predicting the number of nodes is problematic. Implementation: Recently, Microsoft announced an internal partnership between the HPC group (Now called the Technical Computing Group) and Windows Azure. You now have two options for implementing an HPC environment using Windows. You can extend the current infrastructure you have for HPC by adding in Compute Nodes in Windows Azure, using a “Broker Node”. You can then purchase time for adding machines, and then stop paying for them when the work is completed. This is a common pattern in groups that have a constant need for HPC, but need to “burst” that load count under certain conditions. The second option is to install only a Head Node and a Broker Node onsite, and host all Compute Nodes in Windows Azure. This is often the pattern for organizations that need HPC on a scheduled and periodic basis, such as financial analysis or actuarial table calculations. References: Blog entry on Hybrid HPC with Windows Azure: http://blogs.msdn.com/b/ignitionshowcase/archive/2010/12/13/high-performance-computing-on-premise-and-in-the-windows-azure-cloud.aspx Links for further research on HPC, includes Windows Azure information: http://blogs.msdn.com/b/ncdevguy/archive/2011/02/16/handy-links-for-hpc-and-azure.aspx

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