System News
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31 Oct 2011
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Sockets Direct Protocal Gives InfiniBand the Advantage in HPC Java Applications [24849]
Memory-to-Memory Data Throughput that Bypasses the OS Is the Secret

In his post Enabling HPC with InfiniBand in Java Applications Ricardo Ferreira argues that the maturity and e bandwidth advantages of InfiniBand give it an edge over Fibre Channel and Ethernet as the choice for a network fabric. He argues that InfiniBand's capability to move data directly from the memory of one computer to another, bypassing the operating systems of both in the operation, gives it a performance advantage in HPC settings. It is the enabling of Sockets Direct Protocol (SDP) support in InfiniBand, he concludes, that is the key to maximizing the performance of Java applications.
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05 Jul 2011
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Lustre Is the Logical File System for Exascale [24315]
Maturity, Stability, Object Store-based: Much of the Work Is Already Done

The clock is running on the goal to stage an exascale technology demonstration capable of handling a peak of 400 petaflops by 2015. This is more data than a single stream can deliver, so the search is on in the HPC community for a solution to these I/O demands. The hardware approach, writes Brent Gorda, Whamcloud CEO and President, in his HPCWire article "Why Lustre Is Set to Excel in Exascale," -- boosting performance on the single unit and going widely parallel -- will work until power limitations and parallelism issues become an impediment. Gorda enthusiastically nominates the Lustre file system to fill the software side of the equation. Lustre, he continues, based on an object store, has the necessary fundamental architecture for exascale, which the HPC file system technologists think will be based on an object store approach. It might work, Gorda continues, to introduce new file types to Lustre that will provide exascale object storage semantics internally. While this will require development of the underlying object model, Gorda points out that it holds the promise that the same file system will be able to support the full range of applications from (legacy) POSIX through to exascale. Finally, under development since 1999, Lustre has the maturity and stability that developers seek as the starting point for rapid and diverse development, Gorda concludes.
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20 Jun 2011
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Fujitsu/RIKEN "K computer" Tops TOP500 List [24278]
Achieves World's Best Performance of 8.162 Petaflops with over 68,544 CPUs

The "K Supercomputer," being jointly developed by RIKEN and Fujitsu, has achieved a "world's best" performance on the LINPACK benchmark program," logging 8.162 petaflops (quadrillion floating-point operations per second), and a computing efficiency rating of 93.0% to place it at the head of the TOP500 list.

The K computer system, currently in the configuration stage, has 672 computer racks equipped with a current total of 68,544 CPUs. When it goes into full shared-use service in November 2012, as a part of the High-Performance Computing Infrastructure (HPCI) initiative led by Japan's Ministry of Education, Culture, Sports, Science and Technology (MEXT) the K computer will comprise over 800 computer racks—each equipped with ultrafast and energy-efficient CPUs—that access into a network capable of an immense amount of interconnectivity.
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28 Apr 2011
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Sun Blade Servers Provide Foundation for Red Sky/Red Mesa Supercomputer [24144]
Sandia National Labs Achieves Tenfold Increase in Computational Capacity, Cuts Energy Consumption, Cost by 77 Percent

RedSky/Red Mesa one of the world's fastest and most energy efficient supercomputers, housed at Sandia National Laboratories, is powered by Oracle's Sun Servers that include Sun Blade Modular Systems that employ the Sun Cooling Door System and Oracle's network fabric as foundational technologies. With this architecture in its supercomputer datacenter, Sandia has realized reductions in energy consumption and cost by 77 percent and achieved a peak performance of more than 500 trillion mathematical operations per second. The Sun Cooling Door removes 90 percent of the heat load on servers and saves 5 million gallons of water per year. Using the Lustre file system running on Sun storage servers and on Sun disk arrays, Sandia increased their storage capacity and IO performance using an Infiniband connected file system with over 6PB in capacity that delivers more than 20GB/Sec in throughput.
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28 Jan 2011
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Future Direction for the Oracle Grid Engine (OGE) [23869]
Webinar Replay: OGE Key Capabilities and Product Roadmap

The future of the Oracle Grid Engine product includes three major goals, according to Dan Templeton, whose blog contains a link that leads viewers to a replay of the webcast he did with Oracle's marketing director Moe Fardoost. The three goals articulated in the webinar are core infrastructure and feature improvements; tighter integrations with other Oracle products; and a richer cloud feature set. Registration and sign-in required.
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06 Jan 2011
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Oracle Grid Engine: Changes for a Bright Future at Oracle [23807]
Open Grid Scheduler Project Takes Over Maintaining Open Source Code Base

With the coming of the new year, a new chapter is opening in Oracle Grid Engine’s life. Oracle is handing off maintenance of the open source code base to the Open Grid Scheduler project hosted on SourceForge. Dan Templeton reports that the transition will allow the Oracle Grid Engine engineering team to focus their efforts more directly on enhancing the product.
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