when submitting to  a local SGE cluster using the Glite style, the pegasus profile memory is translated to it's numeric value in MB by the workflow API . This value is then passed on, and set in remote_ce_requirements classad for the job from where it is picked up by the blahp layer in the sge_local_submit_attributes.sh file. 

However, SGE for it's memory parameters (h_vmem etc) always requires a suffix (G for GB , M for MB) to be associated 

https://unix.stackexchange.com/questions/608598/syntax-for-memory-request-in-a-sun-grid-engine-job-file