For ICL use; testing on Saturn requires sudo privilege, but then
you must duplicate the PAPI_LIBSMR_ROOT in the sudo environment.
On Saturn, the following sequence works.
export PAPI_LIBMSR_ROOT=/sw/libmsr/0.1.17/
salloc -n1 -wa04 
(The -n1 and -wa04) just select the node and can be changed).
srun -n1 -wa04 sudo PAPI_LIBMSR_ROOT=$PAPI_LIBMSR_ROOT ./libmsr_basic
