Blue Gene/L Tops Its Own Supercomputer Record
DIY News writes "Lawrence Livermore National Laboratory and IBM unveiled the Blue Gene/L supercomputer Thursday and announced it's broken its own record again for the world's fastest supercomputer. The 65,536-processor machine can sustain 280.6 teraflops. That's the top end of the range IBM forecast and more than twice the previous Blue Gene/L record of 136.8 teraflops, set when only half the machine was installed."
lets put folding@home (http://folding.stanford.edu/) on that mother!
On something like this, they would probably be programming in High Performance Fortran or Fortran w/ OpenMP -- or some similar dialect that supports massively parallel execution. I'm sure IBM develop an in-house compiler for the language.
Tubal-Cain smokes the white owl.
That probably only means that they have optimised the architecture over time as would be expected. Things like improved resource management, a slimmer kernel for each CPU, a better compiler, etc. can easily make up for that small performance gain.