NCAR's new IBM SP supercomputer, which arrived at the Mesa Lab in early October, provides atmospheric scientists in Boulder and across the country with a staggering advance in computational, storage, and communications capabilities.
|The first phase of the Advanced Research Computing System was delivered last month.|
|Electricians install the conduit for the electrical distribution to the new IBM SP nodes. (Photos by Carlye Calvin.)|
NSF, which provides the bulk of NCAR's funding, purchased the computer system to advance a wide range of research topics outlined in the agency's ten-year plan for the geosciences. The cost of the computer contract, including system upgrades, maintenance, and technical support over a three-year period, is $24 million.
NCAR is acquiring the system in three phases. This will allow SCD to maintain a stable, state-of-the-art production facility for the next three to five yearsan important criterion for the successful development and refinement of atmospheric and earth-system models.
The first suite of equipment, delivered last month at the Mesa Lab, more than doubles the computational capacity of NCAR's current IBM SP to a peak of two trillion floating-point operations per second (two teraflops) and increases current disk storage capacity fivefold, up to 10.5 trillion bytes of data. This part of the system is undergoing tests and should be available to users this month.
A second delivery, in September 2002, will introduce the next generation of IBM processors, nodes, and intercommunication switch technology, adding nearly five teraflops at peak operation. The package will also include 21 terabytes of new disk storage. In the fall of 2003, NCAR will receive IBM's next round of switch technology, whose lower latency and higher bandwidth will significantly increase the performance of parallel research models.
Specifications aside, what this boils down to is that NCAR's computer power is expanding exponentially. The first phase of the ARCS system doubles the capacity of the current system, and it represents a sixfold increase in capacity over the original IBM RS/6000 SP system that arrived at the Mesa Lab just more than two years ago.
Consider, for example, the role of newer and more powerful supercomputers in climate change research:
"This was actually the first time that the NCAR divisions had representatives on the supercomputer procurement team and the first time the procurement was reviewed by an external evaluation team," says Beth, who is director of contracts and sponsored agreements for the Contracts Office. "It was an extremely large effort by a lot of people."
NCAR's agreement with IBM includes early access to new hardware and software technologies, as well as new software features and tools development, training for systems engineers and operators, and specialized training tailored to the needs of the user communities served by NCAR.
The next generation? In the wings is IBM's Blue Light High- Performance Computing project, a research effort to develop future supercomputer systems with speeds exceeding one petaflop, which is one thousand trillion floating-point operations per second. NCAR's collaboration with IBM on Blue Light will provide valuable input on hardware and software design and the applicability of new computer architecture to research in the atmospheric and related sciences. Such a system will not become a reality for several years, but it may eventually significantly advance, and potentially revolutionize, computer modeling of climate, weather, and other earth systems.
And then, computer experts agree, scientists will press for even more powerful machines. For example, climate modelers want the capability to produce higher resolution climate models, as well as fully coupled models that incorporate the chemistry and biology of the atmosphere, continents, and oceans.
"That's been the history of supercomputers: the work will expand to exceed the capacity of the machines," says SCD's Tom Engel. "The scientific horizons keep getting pushed further out with every new technology that's introduced. I don't think we'll ever get to the point where scientists say, Gee, there's nothing left to study."
Anatta and David Hosansky
Edited by David Hosansky,
Prepared for the Web by Jacque Marshall
Last revised: Thu Dec 20 16:57:22 MST 2001