To use the intel parallel studio software on the ifarm systems you need to configure your environment using the scripts provided by intel.
If you are using bash run
source /scigroup/scicomp/intel/parallel_studio_xe_2020_u4/parallel_studio_xe_2020.4.912/psxevars.sh intel64
If you are using tcsh run
source /scigroup/scicomp/intel/parallel_studio_xe_2020_u4/parallel_studio_xe_2020.4.912/psxevars.csh intel64
To verify that your environment is configured properly run
ifarm1801 ~> icc -v
icc version 19.1.3.304 (gcc version 4.8.5 compatibility)