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Microsoft feeds Excel to supercomputer

Windows HPC chases Linux

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F sharp

The F# language is in customer technology preview this week and is part of Visual Studio, which is in beta. Windows HPC Server 2008 R2, which is required for the integration with Excel, is in beta now as well, and it includes enhancements to the scheduler and tuning in the Message Passing Interface (MPI) stack used to create an HPC cluster. The MPI stack has optimizations for the latest processors from Intel and Advanced Micro Devices, better MPI debugging, and enhanced support for the Remote Direct Memory Access (RDMA) protocol over Ethernet and InfiniBand.

"We're just as fast as Linux on microkernel and other benchmarks, which is a big change for us over the past three years," says Mendillo, who added that the HPC business was "growing extremely fast" but would not quantify that. "We are getting a lot of consideration on deals we didn't see a year and a half ago. We are getting considered half the time now."

Part of this is due to the fact that there are new companies (particularly in life sciences) and users (particularly in financial services) who do not have experience with Linux and don't want it. They are growing up out of their workstations and into HPC clusters. And they want to keep their data on Windows servers and use Active Directory and they want to use tools like SharePoint to share the results of their calculations too.

To help make a Windows HPC Server cluster less intimidating, Microsoft's Systems Center tools have been tweaked with the upcoming R2 release to do a better job deploying a cluster. Mendillo says that System Center can deploy a 1,000-node cluster in between 4 and 5 hours. Microsoft has also created a tool nicknamed "The Lizard," short for the Linpack Performance Wizard, that takes the smarts of the best HPC techies at Microsoft and encapsulates it in a set of wizards that automatically optimizes a cluster to run the Linpack Fortran benchmark. The idea is that you tune for the benchmark and now your parallel applications will run better, too.

Mendillo would not say when Microsoft would get the recently acquired Star-P application parallelization tools into its stack, but it looks like the tools will go into Windows HPC Server at first, not Visual Studio. Mendillo said that the key people of Interactive Supercomputing are now working in the Microsoft "nerd center" across the street from the Massachusetts Institute of Technology in Cambridge, and that Star-P will be in technology preview with a future release of HPC Server sometime next year.

Microsoft's Windows HPC Server still didn't rank very high on the Top 500 supercomputing list that came out this week at SC09, but the University of Southampton popped onto the list at number 74 running the R2 beta on 66.8 teraflops cluster made of IBM's iDataPlex iron and using Xeon 5500 processors.

Expect Microsoft to have a much better showing soon, though. The Tokyo Institute of Technology has just inked a deal to do a second-generation cluster based on blade servers from Sun Microsystems, GPU co-processors from Nvidia, and Windows HPC Server 2008 R2. This machine, named Tsubame 2, will replace Tsubame 1, which was comprised of Sun Opteron blades and ClearSpeed math co-processors and was rated at 87 teraflops. Tsubame 2 is going to weigh in at a much heftier 3 petaflops of peak performance and will almost certainly rank in the top five when it is delivered in the spring of 2010. It may even take over the top spot. ®

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