What operating system does the fastest computer in the world run? Also how bits are fetched per clock cycle?

Question

A friend asked me this and I thought it was a really good question but I dont have an answer for this. Does anyone know?

Answer 1

The most powerful computer in the world is IBM's Blue Gene/L.

Blue Gene/L is made up of approximately 32,000 two-processor nodes, giving it about 64,000 processors in total.

IBM constructed a 33,000 processor prototype of the system in 2004. IBM's prototype was benchmarked at 70.72 trillion calculations per second, or teraflops.



I found the following on wikipedia...

'Blue Gene/L Compute nodes use a minimal operating system supporting a single user program. Only a subset of POSIX calls are supported, and only one process may be run at a time. Programmers need to implement green threads in order to simulate local concurrency.



Application development is usually performed in C, C++, or Fortran using MPI for communication. However, some scripting languages such as Ruby have been ported to the compute nodes.'



Hope this helps you

Richard (giloi2007)



Although none of the articles specifically say the operating system, most modern supercomputers use variants of Linux or UNIX (see links below)

Answer 2

Vista sucks. See if photoshop and your video games are sixty 4 bit well matched - oh and av utility. in the event that they're, circulate sixty 4, if no longer, circulate 32. 8Gig of ram? i do no longer think of any of those OS's will genuinely use it - however i could desire to be improper on that section. in case you opt to genuinely use that RAM and Vista will use it - possibly sucky Vista is a thank you to circulate.

Answer 3

This is a difficult question to answer because these systems are normally pretty unique. Anyway to get you closer to an answer I recommend you have a look here



http://en.wikipedia.org/wiki/Supercomputer



Hope this helps a little.