# Benchmark data ISAM regions not found

**URL:** <https://forum.cmascenter.org/t/benchmark-data-isam-regions-not-found/2870>\
**Category:** CMAQ-ISAM\
**Created:** [December 10, 2021, 8:00am UTC](https://forum.cmascenter.org/t/benchmark-data-isam-regions-not-found/2870 "2021-12-10T08:00:55Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![liuxin](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.cmascenter.org/liuxin/32/1934_2.png) [@liuxin](https://forum.cmascenter.org/u/liuxin)\
**Post date:** [December 10, 2021, 8:00am UTC](https://forum.cmascenter.org/t/benchmark-data-isam-regions-not-found/2870/1 "2021-12-10T08:00:55Z")

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Dear all,  
when i am running CMAQv 5.3.2 -ISAM with the benchmark data (CMAQv5.3.2\_Benchmark\_2Day\_Input). I change the path settings in run\_cctm\_Bench\_2016\_12SE1.csh and EmissCtrl\_cb6r3\_ae7\_aq.nml. but I got a error:

REGION :REGION

```
 >>--->> WARNING in subroutine OPEN3
 File not available.

 *** ERROR ABORT in subroutine SubhFile_Cell on PE 008
 Could not open REGION

```

PM3EXIT: date&time specified as 0  
Date&time specified as 0  
I dont know the reason, Could you please tell me why?  
[isam\_control.txt](https://forum.cmascenter.org/uploads/short-url/wTfYrCMd6ByH1IsK8OAzuK734mN.txt) (2.0 KB)  
[run\_cctm\_Bench\_2016\_12SE1 (2).csh](https://forum.cmascenter.org/uploads/short-url/pZva8Q5oy1FBGVGSjuVUknByndF.csh) (35.0 KB)  
[CTM\_LOG\_001.v532\_intel\_Bench\_2016\_12SE1\_20160701.txt](https://forum.cmascenter.org/uploads/short-url/f2hluOkUJlCu0ditVXpLeimvVQD.txt) (31.1 KB)  
[EmissCtrl\_cb6r3\_ae7\_aq.txt](https://forum.cmascenter.org/uploads/short-url/1ESfdCkHErrGNA66EGN7NnmcOiS.txt) (31.1 KB)

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<div class="post-metadata">

**Author:** ![sergey](https://avatars.discourse-cdn.com/v4/letter/s/9fc348/32.png) [@sergey](https://forum.cmascenter.org/u/sergey)\
**Post date:** [December 23, 2021, 7:25pm UTC](https://forum.cmascenter.org/t/benchmark-data-isam-regions-not-found/2870/2 "2021-12-23T19:25:35Z")

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I suggest to first making sure that this file exists and is in the correct format:

/home/Zhangyu/Build\_CMAQ/CMAQ\_Project/CCTM/scripts/GRIDMASK\_STATES\_12SE1.nc

Also, in the EmisCtrl\*.txt file, you need to point the model to the. This is done by erasing the stuff in one the lines. Change it from:

`!<Example> 'ALL' ,'ISAM_REGIONS','ALL',`

To:

`'ALL' ,'ISAM_REGIONS','ALL',`

And undo the stuff you changed with the `<Default>`