# ERROR ABORT in subroutine VPPM on PE 014

**URL:** <https://forum.cmascenter.org/t/error-abort-in-subroutine-vppm-on-pe-014/2931>\
**Category:** CMAQ\
**Tags:** cmaq\
**Created:** [December 25, 2021, 12:42pm UTC](https://forum.cmascenter.org/t/error-abort-in-subroutine-vppm-on-pe-014/2931 "2021-12-25T12:42:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Aurora](https://avatars.discourse-cdn.com/v4/letter/a/b9e5f3/32.png) [@Aurora](https://forum.cmascenter.org/u/Aurora)\
**Post date:** [December 25, 2021, 12:42pm UTC](https://forum.cmascenter.org/t/error-abort-in-subroutine-vppm-on-pe-014/2931/1 "2021-12-25T12:42:20Z")

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```
 *** ERROR ABORT in subroutine VPPM on PE 014            
  max iterations exceeded in vppm at 77

```

PM3EXIT: date&time specified as 0  
Date&time specified as 0  
By consulting the data, some people say that CTM can be changed by changing the maximum number of iterations CTM\_MAXSYNC, but I still haven’t solved it by reducing it from 300 to 150. Have you ever met?

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<div class="post-metadata">

**Author:** ![lizadams](https://avatars.discourse-cdn.com/v4/letter/l/49beb7/32.png) [@lizadams](https://forum.cmascenter.org/u/lizadams)\
**Post date:** [January 10, 2022, 7:58pm UTC](https://forum.cmascenter.org/t/error-abort-in-subroutine-vppm-on-pe-014/2931/2 "2022-01-10T19:58:46Z")

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Can you provide additional information to help us diagnose your issue?

1. What version of CMAQ are you running?
2. What domain and resolution are you using?
3. What compiler are you using?