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Primeur weekly 2013-07-15

Special

Supercomputer acting as a discovery machine for neuroscience ...

Exascale supercomputing

Jack Dongarra helps design software for the next generation of supercomputers receiving $1 million grant ...

The Cloud

e-Infrastructures for e-Sciences 2013 ...

EastWest Bank chooses HP to build private Cloud ...

IBM accelerates Cloud computing on System z with acquisition of CSL International ...

IBM closes acquisition of SoftLayer Technologies ...

L'Oréal Uruguay consolidates IT infrastructure into the private Cloud and reduces power consumption with IBM PureSystems ...

Oracle announces availability of Cloud Application Foundation, the #1 application foundation across conventional and Cloud environments ...

Oracle expands support for mobile and Cloud technologies with the latest Java development tools and framework ...

US Ignite recognizes RENCI and NC State for innovative app for monitoring power grids ...

EuroFlash

MINES ParisTech selects Bright Cluster Manager for materials science research cluster ...

European Commission to launch survey about Future Internet Assembly ...

Bull launches StoreWay Optima 4600: reaffirming its presence in the new-generation data handling market ...

DANTE celebrates 20 years of networking excellence ...

Oracle Enterprise Manager 12c deployed by CERN to manage its Oracle infrastructure ...

PRACE Winter School 2014 to be held in Tel Aviv, Israel ...

USFlash

Professor Jack Dongarra announces new supercomputer benchmark ...

CASL milestone validates reactor model using TVA data ...

DOST to strengthen weather forecasting to benefit farmers ...

Fujitsu M10 achieves world-record result on two-tier SAP SD standard application benchmark ...

Fujitsu integrates internal database platform using SPARC M10 servers ...

1Wealth Trading Company opines on IBM's foray into global banking ...

Golf Channel selects Oracle's Pillar Axiom Storage System to support rapid growth and new reality programming ...

Stephen F. Austin State University readies for growth; speeds registration, adds 8X capacity and unlocks IT for strategic projects ...

TACC supercomputers help microfluidics researchers make waves at the microscopic level ...

Professor Jack Dongarra announces new supercomputer benchmark


10 Jul 2013 Knoxville - The way the power of supercomputers is measured is about to change. Since 1993, Jack Dongarra, distinguished professor of computer science at the University of Tennessee (UT) has led the ranking of the world's top 500 supercomputers. The much-celebrated bi-annual TOP500 list is compiled using Jack Dongarra's benchmark system, called Linpack. It is the most widely recognized and discussed metric for ranking high-performance computing systems.

But Jack Dongarra said Linpack hasn't kept pace with supercomputing needs and must be updated. "Linpack rankings of computer systems are no longer so strongly correlated to real application performance", Jack Dongarra stated.

Jack Dongarra and his colleague Michael Heroux from Sandia National Laboratories in Albuquerque, New Mexico, are developing a new benchmark that is expected to be released in time for the next TOP500 list release in November.

Linpack measures the speed and efficiency of linear equation calculations. Over time, applications requiring more complex computations have become more common. These calculations require high bandwidth and low latency, and access data using irregular patterns. Linpack is unable to measure these more complex calculations.

"This is an important issue to address since we are seeing more applications being dominated by differential equations, and thus, each iteration of the TOP500 will show increasing gaps between real versus Linpack performance", stated Jack Dongarra.

The new benchmark, called the High Performance Conjugate Gradient (HPCG), should better correlate to computation and data access patterns found in many applications today. This could improve the high performance community, because some of today's supercomputers are being designed to gain a high score for the TOP500 list than to meet real-life demands.

"We have reached a point where designing a system for good Linpack performance can actually lead to design choices that are wrong for the real application mix, or add unnecessary components or complexity to the system", stated Jack Dongarra. "The hope is that this new rating system will drive computer system design and implementation in directions that will better impact performance improvement for real applications."

Jack Dongarra also expects the new benchmark to adapt to emerging trends, unlike its predecessor. "The Linpack benchmark is an incredibly successful metric for the high-performance computing community", stated Jack Dongarra. "The trends it exposes, the focused optimization efforts it inspires, and the publicity it brings to our community are very important. Yet the relevance of the Linpack as a proxy for real application performance has become very low, creating a need for an alternative."

Linpack will not be laid to rest, however. Instead, HPCG will serve as an alternative ranking of the TOP500 list, allowing a re-ranking of the systems on the list to "real" applications.

The next TOP500 list will be announced at the Supercomputing Conference - SC2013, to be held in November in Denver, Colorado. For more information on the TOP500, you can visit www.top500.org .
Source: University of Tennessee

Back to Table of contents

Primeur weekly 2013-07-15

Special

Supercomputer acting as a discovery machine for neuroscience ...

Exascale supercomputing

Jack Dongarra helps design software for the next generation of supercomputers receiving $1 million grant ...

The Cloud

e-Infrastructures for e-Sciences 2013 ...

EastWest Bank chooses HP to build private Cloud ...

IBM accelerates Cloud computing on System z with acquisition of CSL International ...

IBM closes acquisition of SoftLayer Technologies ...

L'Oréal Uruguay consolidates IT infrastructure into the private Cloud and reduces power consumption with IBM PureSystems ...

Oracle announces availability of Cloud Application Foundation, the #1 application foundation across conventional and Cloud environments ...

Oracle expands support for mobile and Cloud technologies with the latest Java development tools and framework ...

US Ignite recognizes RENCI and NC State for innovative app for monitoring power grids ...

EuroFlash

MINES ParisTech selects Bright Cluster Manager for materials science research cluster ...

European Commission to launch survey about Future Internet Assembly ...

Bull launches StoreWay Optima 4600: reaffirming its presence in the new-generation data handling market ...

DANTE celebrates 20 years of networking excellence ...

Oracle Enterprise Manager 12c deployed by CERN to manage its Oracle infrastructure ...

PRACE Winter School 2014 to be held in Tel Aviv, Israel ...

USFlash

Professor Jack Dongarra announces new supercomputer benchmark ...

CASL milestone validates reactor model using TVA data ...

DOST to strengthen weather forecasting to benefit farmers ...

Fujitsu M10 achieves world-record result on two-tier SAP SD standard application benchmark ...

Fujitsu integrates internal database platform using SPARC M10 servers ...

1Wealth Trading Company opines on IBM's foray into global banking ...

Golf Channel selects Oracle's Pillar Axiom Storage System to support rapid growth and new reality programming ...

Stephen F. Austin State University readies for growth; speeds registration, adds 8X capacity and unlocks IT for strategic projects ...

TACC supercomputers help microfluidics researchers make waves at the microscopic level ...