# Cell Data to Point Data issues

**URL:** https://discourse.paraview.org/t/cell-data-to-point-data-issues/2485
**Category:** Development
**Created:** [August 29, 2019, 3:03pm UTC](https://discourse.paraview.org/t/cell-data-to-point-data-issues/2485 "2019-08-29T15:03:49Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![Andy\_Bauer](https://discourse.paraview.org/user_avatar/discourse.paraview.org/andy_bauer/32/5442_2.png) [@Andy\_Bauer](https://discourse.paraview.org/u/Andy_Bauer)
#### Post date: [August 29, 2019, 3:03pm UTC](https://discourse.paraview.org/t/cell-data-to-point-data-issues/2485/1 "2019-08-29T15:03:49Z")

</div>

Hi,

I’m using the `Cell Data to Point Data` filter in parallel with a rectilinear data set and it looks like it the `Piece Invariant` option isn’t working properly. It seems like the `vtkPCellDataToPointData::RequestUpdateExtent()` method it is detached from the full pipeline in that each process is getting the whole extent as the update extent and setting the `UPDATE_EXTENT` information has no effect on the upstream requests to my reader. Any ideas on this?

I can see issues when I try to contour my output from the `Cell Data to Point Data` filter in parallel that I don’t see in serial.

Thanks,  
Andy

---

<div class="post-metadata">

### Author: ![Andy\_Bauer](https://discourse.paraview.org/user_avatar/discourse.paraview.org/andy_bauer/32/5442_2.png) [@Andy\_Bauer](https://discourse.paraview.org/u/Andy_Bauer)
#### Post date: [August 29, 2019, 5:37pm UTC](https://discourse.paraview.org/t/cell-data-to-point-data-issues/2485/2 "2019-08-29T17:37:55Z")

</div>

Note I have a potential fix at [https://gitlab.kitware.com/vtk/vtk/merge\_requests/5923](https://gitlab.kitware.com/vtk/vtk/merge_requests/5923).