Visit additional Tabor Communication Publications
August 25, 2010
At the Hot Chips 22 conference this week at Stanford University, IBM engineers shed some light on the interconnect hub chip that is connecting the Power7 nodes on their PERCS supercomputing system. PERCS ((Productive, Easy-to-use, Reliable Computing System) is IBM's contribution to DARPA's High Productivity Computing Systems (HPCS) program, whose goal is to deliver highly productive multi-petaflop supercomputing systems for government and industry.
Although both IBM's and Cray's HPCS designs rely on general-purpose processors -- Power7, in the case of IBM, and Opteron, in the case of Cray -- the hub controllers are proprietary devices that turn these machines in elite supercomputers. Likewise, SGI's Altix UV hub is the secret sauce that makes the shared memory capability on the company's new UV machines possible.
The PERCS IBM hub module contains 48 10Gbps optical links and delivers more than 1.1 terabytes/second of bandwidth. A hub connects each Power7 quad-chip module (QCM), with each Power7 drawer consisting of 8 QCMs and 8 hubs. Presumably this is the same setup going into the PERCS-class Blue Waters system at NCSA.
Rick Merritt covered the IBM presentation at Hot Chips 22 for EE Times, and has a nice writeup, along with a video interview of Baba Arimilli, the chief architect of the hub chip.
Full story at EE Times
In a recent solicitation, the NSF laid out needs for furthering its scientific and engineering infrastructure with new tools to go beyond top performance, Having already delivered systems like Stampede and Blue Waters, they're turning an eye to solving data-intensive challenges. We spoke with the agency's Irene Qualters and Barry Schneider about..
Large-scale, worldwide scientific initiatives rely on some cloud-based system to both coordinate efforts and manage computational efforts at peak times that cannot be contained within the combined in-house HPC resources. Last week at Google I/O, Brookhaven National Lab’s Sergey Panitkin discussed the role of the Google Compute Engine in providing computational support to ATLAS, a detector of high-energy particles at the Large Hadron Collider (LHC).
The Xeon Phi coprocessor might be the new kid on the high performance block, but out of all first-rate kickers of the Intel tires, the Texas Advanced Computing Center (TACC) got the first real jab with its new top ten Stampede system.We talk with the center's Karl Schultz about the challenges of programming for Phi--but more specifically, the optimization...
05/10/2013 | Cleversafe, Cray, DDN, NetApp, & Panasas | From Wall Street to Hollywood, drug discovery to homeland security, companies and organizations of all sizes and stripes are coming face to face with the challenges – and opportunities – afforded by Big Data. Before anyone can utilize these extraordinary data repositories, however, they must first harness and manage their data stores, and do so utilizing technologies that underscore affordability, security, and scalability.
04/15/2013 | Bull | “50% of HPC users say their largest jobs scale to 120 cores or less.” How about yours? Are your codes ready to take advantage of today’s and tomorrow’s ultra-parallel HPC systems? Download this White Paper by Analysts Intersect360 Research to see what Bull and Intel’s Center for Excellence in Parallel Programming can do for your codes.
In this demonstration of SGI DMF ZeroWatt disk solution, Dr. Eng Lim Goh, SGI CTO, discusses a function of SGI DMF software to reduce costs and power consumption in an exascale (Big Data) storage datacenter.
The Cray CS300-AC cluster supercomputer offers energy efficient, air-cooled design based on modular, industry-standard platforms featuring the latest processor and network technologies and a wide range of datacenter cooling requirements.