davidh's blog

HP tops supercomputer list

IT-Online - HP tops supercomputer list Wednesday, 19 November 2008, 11:38

HP's BladeSystem c-Class server has been named as the world's largest supercomputer. This is the second year in a row that HP has topped the list of the 500 most powerful computers in the world.

HP computers make up 41,8% of the list, with IBM computers making up 37,6%.

Multicore Is Bad News For Supercomputers

IEEE Spectrum: Multicore Is Bad News For Supercomputers (First Published November 2008) By Samuel K. Moore

Adding cores slows data-intensive applications

Trouble Ahead: More cores per chip will slow some programs [red] unless there’s a big boost in memory bandwidth [yellow].

With no other way to improve the performance of processors further, chip makers have staked their future on putting more and more processor cores on the same chip. Engineers at Sandia National Laboratories, in New Mexico, have simulated future high-performance computers containing the 8-core, 16‑core, and 32-core microprocessors that chip makers say are the future of the industry. The results are distressing. Because of limited memory bandwidth and memory-management schemes that are poorly suited to supercomputers, the performance of these machines would level off or even decline with more cores. The performance is especially bad for informatics applications—data-intensive programs that are increasingly crucial to the labs’ national security function.

Data centres could make dramatic power savings

IT-Online
Thursday, 13 November 2008, 11:43

In a conventional data centre, 35% to as much as 50% of the electrical energy consumed is for cooling versus 15% in best-practice "green" data centres.

"Virtually all data centres waste enormous amounts of electricity using inefficient cooling designs and systems," says Paul McGuckin, research vice-president at Gartner. "Even in a small data centre, this wasted electricity amounts to more than 1 million kilowatt hours annually that could be saved with the implementation of some best practices."
The overriding reason for the waste in conventional data centre cooling is the unconstrained mixing of cold supply air with hot exhaust air.

CSIR research remains relevant

IT-Online Thursday, 13 November 2008, 11:55

The Council for Scientific & Industrial Research (CSIR) is managing to stay relevant, and provides a significant component of South Africa's research and development (R&D).

As science and research outcomes continue to improve South Africa's competitiveness and service delivery, the CSIR believes that it remains a key player in the country's national system of innovation (NSI).

These are bold claims to make, but stand in stark contrast to SA's rankings in the competitiveness indexes, our crumbling education systems, the arbitrary S&T projects that still produce no tangible results and my exeprience with various departments.

Visual C++ 2010 technology preview parallel programming example

Visual C++ 2010 technology preview parallel programming example -

An article over at CodeGuru.com for those of you interested in test driving the Visual C++ 2010 CTP

Cloud Computing: Resistance is Pointless

Cloud Computing: Resistance is Pointless - Cloud Computing is the future of computing but resistance is high due to the presumed lack of control and ownership. These jitters will pass. [Linux_mag clusters]

Personal Supercomputing Survey Results

I used a Tyan Personal Supercomputer for about a year to get into the swing of things. I really needed the ability to reboot the thing from time to time; to re-install the whole thing when I cocked-up (olny 16 nodes), etc. However, one I gottit, I felt that I would be best served that a professional sys-admin takes over. This was framed by the fact that I needed more CPU grunt, and it seemed to me that doubling the CPU's lead to considerably more than double the sys admin.

I am using sys admin as shorthand for all the paraphernalia of big systems - requirements gathering, testing, backups, thinking about cooling, etc.

Therefore the following survey is of considerable interest to me.
Inside HPC: Personal Supercomputing Survey Results -

The polls are closed, the results are in and the votes from Florida have been reviewed.  We officially had sixty-one people respond to our survey on desktop supercomputing.  Sparked by recent product releases from Cray and SiCortex, John West and I were increasingly curious what the HPC market thought of such a computing paradigm?  Would these Top500 miniatures stand up to the industry criticism?  Why don’t we analyze the results.

Powering the Large Hadron Collider

IEEE Spectrum: Powering the Large Hadron ColliderBy Sally Adee

Powering the Large Hadron Collider By Sally Adee
First Published September 2008
When the LHC starts up tomorrow, it will draw twice the power of nearby Geneva

BIG DRAW: It is estimated that the Large Hadron Collider, the biggest physics experiment in history, will use 1000 gigawatt-hours of electricity in 2009.
9 September 2008—The Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN), set to start up tomorrow, is the largest physics experiment in history, and it’s probably the most power hungry. Spanning the border between Switzerland and France, the 27-kilometer accelerator ring with its accompaniment of radiation-hardened integrated circuits, feeder accelerators, computers, and supercooled superconducting magnets will, according to varying estimates, draw between 220 and 300 megawatts of electricity—enough to power the city of Geneva twice over. Keeping the power flowing reliably takes a good bit of ingenuity, as a sudden loss of power could mean serious damage to the machine and months of lost work.

Going Parallel In Image Processing Using MATLAB and Python

Tech Insiders Webinar Series - 10/14/2008

The Brightest Minds Discussing the Biggest Topics
Going Parallel In Image Processing Using MATLAB and Python
Tuesday, Oct 14, 2008
2:00 PM ET / 11:00 AM PT / 18:00 GMT (Duration: 1 hour)

In this Webinar, learn how Star-P lets engineers, scientists, and researchers write applications on desktop computers using MATLAB and Python, and run them interactively on multiprocessor servers or HPC clusters. Interactive Supercomputing will share insights on how to eliminate the need to re-program applications in C, FORTRAN or MPI languages in order to achieve production performance.

Scribefire - blogging tool for FireFox

I have been using a Mozilla Firefox ScribeFire to blog. Check it out - it works quite wwell. There is a problem in that I would rather blogs were your thoughts - and articels you saw were pages, but lets see what comes out.

Syndicate content