I successfully compiled RegCM-4.4-rc6 and successfully simulated for a month with 30 km resolution of a 221 x 270 grid domain with parallel run. But  the output file per month from ATM model is 19GB is too much surprising, which was only 3.9GB when I used RegCM4.1.1. szlib executable was not in both the case.

Will you be so kind to help me to short this problem.

Thank You

Sridhara