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Primeur weekly 2012-04-02

The Cloud

Bull LiberTP brings legacy applications into the age of Cloud computing

ClearDATA secures funding from Norwest Venture Partners for health care Cloud computing

Qoncert selects IntelePeer SIP Trunking services to connect Cisco Unified Communications systems for business customers

Intertrust and HTC announce strategic technology partnership

Oracle buys ClearTrial

Peach Aviation selects Oracle's Cloud-based Oracle Fusion Human Capital Management

EuroFlash

Projectiondesign adds another dimension to Laval Virtual 2012

Masergy uses ADVA FSP 150 to deliver intelligent Ethernet services to global enterprise customers

Regional supercomputing centre set to revolutionise research

NVIDIA GPUs power top two Russian supercomputers; also selected to boost nation's space programmes

BGI signs MoU with TTI GG, NLeSC and NBIC for taming flood of genomic data

Video reveals wave character of particles

USFlash

SDSC graduate student awarded NVIDIA Graduate Fellowship

Bokhari tests performance of diverse HPC architectures

BGI launches Joint Bioinformatics & Computing Lab with National Supercomputing Center in China

University of Wyoming creating advanced campus computing site to access NCAR supercomputing centre

Rice University and IBM partner to bring first Blue Gene supercomputer to Texas

Oracle delivers world record x86 performance on industry standard Java middleware and transactional database benchmarks

Rutgers teams with IBM to build powerful high-performance computing centre in New Jersey

How quantum physics could make The Matrix more efficient

Supermicro new generation X9 embedded building block solutions deliver 11x PCI-E slots and higher performance with lower power consumption

Supercomputing the difference between matter and antimatter

Latest VME single board computer from Emerson Network Power uses Freescale P5020 QorIQ processor to boost commercial and rugged applications

HP helps U.S. storage partners expand revenue opportunities, profitability with 100 percent channel initiatives

CCC Information Services Inc. leverages Oracle Fusion Middleware to help optimize efficiency, increase scalability and support performance levels of its claims management platform

Bokhari tests performance of diverse HPC architectures

28 Mar 2012 Columbus - Surveying the wide range of parallel system architectures offered in the supercomputer market, an Ohio State University researcher recently sought to establish some side-by-side performance comparisons. The journal,Concurrency and Computation: Practice and Experience, in February published, "Parallel solution of the subset-sum problem: an empirical study". The paper is based upon a master's thesis written last year by computer science and engineering graduate student Saniyah Bokhari.

"We explore the parallelization of the subset-sum problem on three contemporary but very different architectures, a 128-processor Cray massively multithreaded machine, a 16-processor IBM shared memory machine, and a 240-core NVIDIA graphics processing unit", stated Saniyah Bokhari. "These experiments highlighted the strengths and weaknesses of these architectures in the context of a well-defined combinatorial problem."

Saniyah Bokhari evaluated the conventional central processing unit architecture of the IBM 1350 Glenn Cluster at the Ohio Supercomputer Center (OSC) and the less-traditional general-purpose graphic processing unit (GPGPU) architecture, available on the same cluster. She also evaluated the multithreaded architecture of a Cray Extreme Multithreading (XMT) supercomputer at the Pacific Northwest National Laboratory's (PNNL) Center for Adaptive Supercomputing Software.

"Ms. Bokhari's work provides valuable insights into matching the best high performance computing architecture with the computational needs of a given research community", noted Ashok Krishnamurthy, interim co-executive director of OSC. "These systems are continually evolving to incorporate new technologies, such as GPUs, in order to achieve new, higher performance measures, and we must understand exactly what each new innovation offers."

Each of the architectures Saniyah Bokhari tested fall in the area of parallel computing, where multiple processors are used to tackle pieces of complex problems "in parallel". The subset-sum problem she used for her study is an algorithm with known solutions that is solvable in a period of time that is proportional to the number of objects entered, multiplied by the sum of their sizes. Also, she carefully timed the code runs for solving a comprehensive range of problem sizes.

The results from Saniyah Bokhari's study illustrate that the subset-sum problem can be parallelized well on all three architectures, although for different ranges of problem sizes. The performances of these three machines under varying problem sizes showed the strengths and weaknesses of the three architectures.

Saniyah Bokhari concluded that the GPU performs well for problems whose tables fit within the limitations of the device memory. Because GPUs typically have memory sizes in the range of 10 gigabytes (GB), such architectures are best for small problems that have table sizes of approximately thirty billion bits.

She found that the IBM x3755 performed very well on medium-sized problems that fit within its 64-GB memory, but had poor scalability as the number of processors increased and was unable to sustain its performance as the problem size increased. The machine tended to saturate for problem with table sizes of 300 billion bits.

The Cray XMT showed very good scaling for large problems and demonstrated sustained performance as the problem size increased, she said. However, the Cray had poor scaling for small problem sizes, performing best with table sizes of a trillion bits or more.

"In conclusion, we can state that the NVIDIA GPGPU is best suited to small problem sizes; the IBM x3755 performs well for medium sizes, and the Cray XMT is the clear choice for large problems", Saniyah Bokhari stated. "For the XMT, we expect to see better performance for large problem sizes, should memory larger than 1 TB become available."
Source: Ohio Supercomputer Center

Back to Table of contents

Primeur weekly 2012-04-02

The Cloud

Bull LiberTP brings legacy applications into the age of Cloud computing

ClearDATA secures funding from Norwest Venture Partners for health care Cloud computing

Qoncert selects IntelePeer SIP Trunking services to connect Cisco Unified Communications systems for business customers

Intertrust and HTC announce strategic technology partnership

Oracle buys ClearTrial

Peach Aviation selects Oracle's Cloud-based Oracle Fusion Human Capital Management

EuroFlash

Projectiondesign adds another dimension to Laval Virtual 2012

Masergy uses ADVA FSP 150 to deliver intelligent Ethernet services to global enterprise customers

Regional supercomputing centre set to revolutionise research

NVIDIA GPUs power top two Russian supercomputers; also selected to boost nation's space programmes

BGI signs MoU with TTI GG, NLeSC and NBIC for taming flood of genomic data

Video reveals wave character of particles

USFlash

SDSC graduate student awarded NVIDIA Graduate Fellowship

Bokhari tests performance of diverse HPC architectures

BGI launches Joint Bioinformatics & Computing Lab with National Supercomputing Center in China

University of Wyoming creating advanced campus computing site to access NCAR supercomputing centre

Rice University and IBM partner to bring first Blue Gene supercomputer to Texas

Oracle delivers world record x86 performance on industry standard Java middleware and transactional database benchmarks

Rutgers teams with IBM to build powerful high-performance computing centre in New Jersey

How quantum physics could make The Matrix more efficient

Supermicro new generation X9 embedded building block solutions deliver 11x PCI-E slots and higher performance with lower power consumption

Supercomputing the difference between matter and antimatter

Latest VME single board computer from Emerson Network Power uses Freescale P5020 QorIQ processor to boost commercial and rugged applications

HP helps U.S. storage partners expand revenue opportunities, profitability with 100 percent channel initiatives

CCC Information Services Inc. leverages Oracle Fusion Middleware to help optimize efficiency, increase scalability and support performance levels of its claims management platform