When I run ISAM , i want to set 32 isam_regions ,but when I set 32 regions,cctm can't export output，only update log，but when I set 18 isam_regions,cctm can normal operation.i want to set 32 regions normal operation.Please help me to solve this problem

CMAQ-ISAM
1

CTM_LOG
CTM_LOG1448×1470 361 KB

this is my isam control fileisam_control_quanguo.txt (4.1 KB)
I use CMAQ5.4 CMAQ_Control_DESID.txt (13.8 KB)

2

It’s possible that your simulation is running out of memory. Are you running with the large version of IOAPI? See this release note for a brief description: What's New with the I/O API

2 Likes
3

I definitely agree with Ben’s response posted. You should compile IOAPI large version and use the IOAPI large to further compile CMAQv5.4. Then you will be ready to go.

2 Likes
4

thank you very much. I am running with IOAPI-Large and solve this problem. but I meet a new problem. i would be very grateful if you can help me.
isamlog.txt (30.6 KB)

isam-error
isam-error1364×1270 280 KB

5

Please review the CTM_LOG_* files to find the full error message.

grep -i error CTM_LOG*

Once you find the processor that has an error message in it, you may need to print out a few lines above to see what caused the error.

excerpt from the command manual:

man grep

-B num, --before-context=num
Print num lines of leading context before each match. See also the -A and -C options.

grep -B 10 -i error CTM_LOG*
1 Like