Ah, I see. The Twiki only mentions the intel mpi compilers as coming from this source. Thanks. J. Taylor Childers, Assistant Physicist Argonne National Laboratory HEP Division Bldg. 360, Rm. C-217 Office: (630) 252-4212 Mobile: (331) 302-4647 [email protected]<mailto:[email protected]> On Sep 20, 2016, at 8:44 AM, Tom LeCompte <[email protected]<mailto:[email protected]>> wrote: source /soft/compilers/intel_beta/compilers_and_libraries/linux/bin/compilervars.sh intel64