Compiling Applications for BG/L

Front End Node

The fen is a PowerPC64 machine with 10 cores running SUSE/Linux. Both gcc and IBM XL compilers are available.

gcc options that work well

-O3 -static -ffast-math -maltivec

For reasons unknown, specifying -mtune=powerpc64 -mpowerpc64 causes DOCK to segfault while running.