# Bug reading Exodus file?
**URL:** https://discourse.paraview.org/t/bug-reading-exodus-file/16589
**Category:** Development
**Created:** [May 8, 2025, 3:38pm UTC](https://discourse.paraview.org/t/bug-reading-exodus-file/16589 "2025-05-08T15:38:23Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@GregVernon](https://discourse.paraview.org/u/GregVernon)
#### Post date: [May 8, 2025, 3:38pm UTC](https://discourse.paraview.org/t/bug-reading-exodus-file/16589/1 "2025-05-08T15:38:23Z")
I’ve got an Exodus file that I produced using Sculpt. Note that I’ve used EPU to recombine into a single file. The “stats” output from Sculpt reports `2,073,038` elements:
```auto
================ MESH SUMMARY ===================
Base Filename sculpt_boundary_layers_bad
Num Procs 8
Num Nodes 2120643
Num Elements 2073038
Num BL Hexes 40296
Num Blocks 5
Num Nodesets 0
Num Sidesets 0
Num Bad Qual 0
Num Poor Qual 485
Min Quality 0.100082
Avg Quality 0.971754
Min Edge Len 0.015231
Min Qual Rank 2
```
Which is backed up by the output from EPU:
```auto
****BEGIN WRITING OUTPUT FILE*****
Output: './.\sculpt_boundary_layers_bad.e'
IO Word sizes: 4 bytes floating point and 4 bytes integer.
Title:
Number of coordinates per node = 3
Number of nodes = 2120643
Number of elements = 2073038
Number of element blocks = 5
```
As well as `exodus.py`:
```console
Python 3.13.3 (tags/v3.13.3:6280bb5, Apr 8 2025, 14:47:33) [MSC v.1943 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path.append( r"C:\Program Files\Coreform Cubit 2025.3\bin" )
>>> import exodus
>>> E = exodus.exodus( "sculpt_boundary_layers_bad.e" )
You are using exodus.py v 1.21.2 (seacas-py3), a python wrapper of some of the exodus library.
Copyright (c) 2013-2023 National Technology &
Engineering Solutions of Sandia, LLC (NTESS). Under the terms of
Contract DE-NA0003525 with NTESS, the U.S. Government retains certain
rights in this software.
Opening exodus file: sculpt_boundary_layers_bad.e
>>> print( E.num_elems() )
2073038
```
However, when I open the _partitioned_ exodus file (i.e., `sculpt_boundary_layers_bad.e.8.0`) in ParaView 5.13.1, the information panel states only `2,060,311` “cells”, even though the `ids` for cells range is `[1, 2073038]`:
And there’s a chunk of elements clearly missing (image produced by using a Clip filter with `Crinkle Clip` setting on):
And even more curiously, after `epu`-ing the partitioned files into a single Exodus file (i.e., `sculpt_boundary_layers_bad.e`) there are different numbers reported and an even bigger chunk is missing:
And, for the record, here’s what I would expect to see, this was produced with _slightly_ different parameters in Sculpt (the `*_good.e` files):
Here are links (active for 7 days) to download the Exodus files:
- [sculpt\_boundary\_layers\_bad.tar](https://transfer.coreform.com/eUmsIypXYE/sculpt_boundary_layers_bad.tar)
- [sculpt\_boundary\_layers\_good.tar](https://transfer.coreform.com/1ICJ9QGyNL/sculpt_boundary_layers_good.tar)
As there does seem to be some dependence on Sculpt and EPU, I wonder @wascott if I should also send this, with full reproduction information, to the SNL Cubit team? We’re looking at it too, but we’re a bit resource limited currently.
---
### Author:  [@GregVernon](https://discourse.paraview.org/u/GregVernon)
#### Post date: [May 8, 2025, 3:39pm UTC](https://discourse.paraview.org/t/bug-reading-exodus-file/16589/2 "2025-05-08T15:39:34Z")
ParaView specs:
```auto
Client Information:
Version: 5.13.1
VTK Version: 9.3.20240617
Qt Version: 5.15.2
vtkIdType size: 64bits
Embedded Python: On
Python Library Path: C:\Program Files\ParaView 5.13.1\bin\lib
Python Library Version: 3.10.11 (tags/v3.10.11:7d4cc5a, Apr 5 2023, 00:38:17) [MSC v.1929 64 bit (AMD64)]
Python Numpy Support: On
Python Numpy Path: C:\Program Files\ParaView 5.13.1\bin\Lib\site-packages\numpy
Python Numpy Version: 1.25.2
Python Matplotlib Support: On
Python Matplotlib Path: C:\Program Files\ParaView 5.13.1\bin\Lib\site-packages\matplotlib
Python Matplotlib Version: 3.7.2
Python Testing: Off
MPI Enabled: Off
ParaView Build ID: superbuild abdf9aa5f109ffa3558a63d86365a0203aaab773 (!1224)
Disable Registry: Off
Test Directory:
Data Directory:
SMP Backend: TBB
SMP Max Number of Threads: 32
OpenGL Vendor: NVIDIA Corporation
OpenGL Version: 3.2.0 NVIDIA 561.17
OpenGL Renderer: NVIDIA RTX A2000 12GB/PCIe/SSE2
Accelerated filters overrides available: No
Connection Information:
Remote Connection: No
```