# Missing value encountered in nicas

**URL:** <https://forums.jcsda.org/t/missing-value-encountered-in-nicas/488>\
**Category:** Uncategorized\
**Created:** [July 10, 2023, 3:30pm UTC](https://forums.jcsda.org/t/missing-value-encountered-in-nicas/488 "2023-07-10T15:30:46Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![xtian15](https://avatars.discourse-cdn.com/v4/letter/x/ecb155/32.png) [@xtian15](https://forums.jcsda.org/u/xtian15)\
**Post date:** [July 10, 2023, 3:30pm UTC](https://forums.jcsda.org/t/missing-value-encountered-in-nicas/488/1 "2023-07-10T15:30:46Z")

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Hi,  
The nicas training is getting terminated due to missing values at some levels in some samples. This does not always happen but pops up occasionally in a few samples. Below is an example in the case of cloud liquid water. Any workarounds concerning this? Thanks!

```auto
Info : Communicate data from halo A to universe on subset Sc0
Info : Check that Sc0 points in universe are not duplicated
Info : Setup tree
Info : Setup mesh
!!! ABORT in nicas_blk_copy_cmat on task #000041: missing value for NICAS at level 42 of block cloud_liquid_water
--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 40 in communicator MPI_COMM_WORLD
with errorcode 1.

NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
You may or may not see output from other processes, depending on
exactly when Open MPI kills them.
--------------------------------------------------------------------------
!!! ABORT in nicas_blk_copy_cmat on task #000002: missing value for NICAS at level 42 of block cloud_liquid_water

```