I am using CMAQ to do the simulation for 01/01/2015 using the SMOKE output files generated by myself. I ran the benchmark case successfully. I ran SMOKE several times and the output looked normal but I got the error “CGRID file not written” all the time. Here is the script I am using and the log files I got (cctm.log.20150101.txt (11.2 KB) CTM_LOG_000.v53_intel_2015_12US1_459X299_20150101.txt (10.0 KB) run_cctm_2015_12US1_459X299.csh (32.0 KB) ). Would so appreciate it if you can take a look at them and tell me what I should do next.