Showing posts with label komputer. Show all posts
Showing posts with label komputer. Show all posts

China officially has fastest computer

China Supercomputer China officially has fastest computer is the US slipping?
The news that China might take top slot in the list of the world’s fastest and most powerful supercomputers first broke at the end of last month but now it’s official.

The Tianhe-1A which is used for weather forecasting and surveying mines made it by a long shot with a performance of 2.57 petaflops. A Petaflop is a measure of a computer’s processing speed and can be expressed as a thousand trillion floating point operations per second.

Knocked into second place was the Cray XT5 “Jaguar” system at the US Department of Energy’s (DOE) Oak Ridge Leadership Computing Facility in Tennessee. It is capable of 1.75 petaflops.

China also takes third place with Nebulae which is located at the National Supercomputing Centre in Shenzhen. It achieved 1.27 petaflops.

Fourth place is held by Japan with Tsubame 2.0 at the Tokyo Institute of Technology with a performance of 1.19 petaflops.

Then in fifth place there’s another US listing, Hopper, a Cray XE6 system at DOE’s National Energy Research Scientific Computing (NERSC) Center in California with a performance of 1.05 petaflops.

Sixth place was taken by France with the Tera 100 Bull system at the French CEA (Commissariat à l’énergie atomique et aux énergies alternatives) which is basically the Atomic and Alternative Energies Commission.

Five of the top 10 are making it to the list for the first time and currently 5 of the top 10 supercomputers are from the US but only 2 of them are in the top 5. In the past the USA have usually dominated the top of the list.

So what does this mean for the US and are they in danger of losing the battle of the supercomputers?

“What is scary about this is that the US dominance in high-performance computing is at risk. One could argue that this hits the foundation of our economic future” Professor Wu-chun Feng, a supercomputing expert at Virginia Polytechnic Institute and State University, told the NYT.

However, the US can take comfort from the fact that it still has the most computers on the top 500 list with 275 systems although that is down from 282 five months ago.

It’s not the first time that the US has been pushed off the top slot either; the Japanese did it in 2004. However, the US soon took it back. No doubt they’ll be hoping to do it again, perhaps with Blue Waters next year or Sequoia the year after.
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How to Turn On Your PC in Under 10 Seconds

Alright, so you are also interested in having a 10 Second PC. Does sound like having a 10 second car, isn’t it? It also reflects that we all don’t like waiting for your PCs to boot and every millisecond delay feels like a minute and every minute feels like an hour.
I have found this tip on Internet and have yet tried it as I am not willing to experiment with my 20 month old windows XP installation. may be you can try it and post me back the results.


  • Click Start > Run
  • Type Regedit and Press Enter (This will open the Registry Editor)
  • Look for following Key
 HKEY_LOACAL_MECHINE\SYSTEM\CurrentControlSet\Control\ContentIndex

  • Find a Key called “Startup Delay”
  • Double Click On It
    • It is normally a base Value, Change it to Decimal
    • Default Value Is 4800000 (75300:hexadecimal)
    • Change The Value To 40000
  • Close the Registery Editor and Restart Your Computer
  • You are done, Restart your PC.


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This Is How Your Server Room Should Be

A few days back I posted a story on worst server rooms. I think now it is time to share with you how a server room or data center should look like. I don’t know if these examples are practical or not but sure they look very beautiful. They surely reflect upon the personality of system administrators. This structured and neat cabling looks very professional. I would love to have a data center like this. I guess my hosting company sees this and follow to reduce the downtime.
Fiber optic panel
neat rack with orange cables
Orange Cables neatly comming to patch panel
patch panel for an ISP
Patch panel with cables in datacenter
server rack from behind
another patch panel from another ISP
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