Incomplete CCTM run

Hi,
I was trying to simulate a 3-day run ( Nov 1 to Nov 3). It looks like it is creating the first-day output properly. But on the second day (Nov 2) it got stuck. I am attaching the last few lines from the CCTM log files as I didn’t find any error.

###…######
Timestep written to A_CONC_1 for date and time 2016306:230000
S_CGRID :/gpfs_common/share03/fgarcia4/safrin/cmaq-5.2.1-intel2018.2.199/data/output_CCTM_v521_intel2018.2.199_12km_5day/CCTM_CGRID_v521_intel2018.2.199_12km_5day_20161101.nc

 >>--->> WARNING in subroutine OPEN3
 File not available.
 
 Could not open S_CGRID file for update - try to open new
 Value for IOAPI_LOG_WRITE:  F returning FALSE

 Timestep written to S_CGRID          for date and time  2016307:000000


 >>---->  Program completed successfully  <----<<                                                

 Date and time 0:00:00   Nov  2, 2016   (2016307:000000)

…###

I checked the existence of the “/gpfs_common/share03/fgarcia4/safrin/cmaq-5.2.1-intel2018.2.199/data/output_CCTM_v521_intel2018.2.199_12km_5day/CCTM_CGRID_v521_intel2018.2.199_12km_5day_20161101.nc” by using ls -lrt. It is there. I am not getting any clue how to solve this problem and proceed the run for the rest of the days.

Thanks,
Sadia

Hi, Sadia;

I am running 3-day simulation in January and had the same issue yesterday. I did the following steps and it works.

setenv CTM_MAXSYNC 720
setenv CTM_MINSYNC 60

setenv IOAPI_LOG_WRITE F
setenv FL_ERR_STOP N
setenv PROMPTFLAG F
setenv IOAPI_OFFSET_64 YES
setenv IOAPI_CHECK_HEADERS N
setenv IOAPI_CFMETA YES

Hope this helps.

Yijia

And there are also a couples places in the CMAS forum encountered by others previously. It would be helpful to go over those posts with CGRID output writing issue.

Hi Yijia,

Thank you so much for your response. I followed the steps you mentioned and it helped me to complete the 3-day simulation. But now when I am trying to set a longer simulation for 15 days. It is again having the same issues and stopping after the 6th day. Maybe it would be better for me to have an in-depth idea about which parameter is controlling these things.

However, I appreciate your concern.

Thanks,
Sadia