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IBM Open Sources Supercomputer Code
eldavojohn writes "IBM has announced at the LinuxWorld conference that they are now hosting all their supercomputing stack software as open source from the University of Illinois. From the article: 'The software will initially support Red Hat Enterprise Linux 5.2 and IBM Power6 processors. IBM is planning to add support for Power 575 supercomputing servers and IBM x86 platforms such as System x 3450 servers, BladeCenter servers and System x iDataPlex servers. The stack includes several distinct software tools that have been tested and integrated by IBM. These include the Extreme Cluster Administration Toolkit (xCAT), originally developed for large clusters based on Intel's commodity x86 architecture but now modified for clusters based on IBM's own Power architecture. xCAT is used in the National Nuclear Security Administration's Roadrunner Project at Los Alamos National Laboratory in New Mexico — a hybrid cluster currently ranked by the official Top 500 list as the world's most powerful supercomputer.' For several years, Linux has been a strong tool for supercomputing."
Try hereinstead. And yes, xCAT kicks butt if you want to run a linux cluster. More so, now that it's open source.
The Internet has no garbage collection
No. The PowerPC architecture is mostly a subset of POWER. The POWER processors have all of the instructions of PowerPC, plus more. And they're built a little more robustly, since they're designed for the enterprise server market.