I am currently using the CMAQ5.4-ISAM model to simulate a case with 31 emission files at a 1 km resolution, and the total simulation period is one month. Our computing resources are set to automatically terminate simulations that run for more than 4 hours(walltime). To overcome this limitation, I’ve been using a daily restart approach with NSTEPS = 240000.
The simulations went smoothly for the initial days, but starting on November 11th, the computational speed significantly decreased. As a result, I can only simulate until 16:00 within a 4-hour timeframe.
Is it possible for me to modify the settings to allow CMAQ to simulate for 12 hours, generate CGRID files, and then continue the simulation with a separate job?
I appreciate your assistance.