Beyond what's documented at the FAQ (Questions 20 and 21) http://www.open-mpi.org/faq/?category=building#build-sun-compilers
is there anything else worth tweaking for building on a SPARC-Enterprise-T5120 with the June 2010 Express compiler suite ? Perhaps, instead of -xtarget=ultra3 one should, as suggested by CC -xtarget=native -dryrun, use -xtarget=ultraT2 -- Kevin M. Buckley Room: CO327 School of Engineering and Phone: +64 4 463 5971 Computer Science Victoria University of Wellington New Zealand