On Wed, 26 Mar 2014 06:49:30 AM Kenneth A. Lloyd wrote: > Is there a difference between INK and CNK?
BG/Q IO nodes run RHEL6 with a patched distro kernel. BGQ compute nodes run CNK which is a custom kernel written in C++ and licensed under the Eclipse Public License (EPL). It does not implement all of POSIX and deliberately omits things like fork() and execve(). CNK also checks for a note in the ELF header before permitting an executable to run to ensure only code built with the BGQ cross compilers will run. The BGP CNK didn't do that. cheers, Chris -- Christopher Samuel Senior Systems Administrator VLSCI - Victorian Life Sciences Computation Initiative Email: sam...@unimelb.edu.au Phone: +61 (0)3 903 55545 http://www.vlsci.org.au/ http://twitter.com/vlsci
