# VTKHDF roadmap

**URL:** https://discourse.vtk.org/t/vtkhdf-roadmap/13257
**Category:** Development
**Tags:** file-formats
**Created:** [February 5, 2024, 12:33pm UTC](https://discourse.vtk.org/t/vtkhdf-roadmap/13257 "2024-02-05T12:33:45Z")
**Posts on this page:** 1
**Showing post:** 19

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### Author: ![dcthomp](https://discourse.vtk.org/user_avatar/discourse.vtk.org/dcthomp/32/60_2.png) [@dcthomp](https://discourse.vtk.org/u/dcthomp)
#### Post date: [July 18, 2025, 3:26pm UTC](https://discourse.vtk.org/t/vtkhdf-roadmap/13257/19 "2025-07-18T15:26:19Z")

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I would like to add support for this, but don’t currently have any funding to do it. The basic structure of vtkCellGrid makes a lot of it simple, but taking account of some things will involve more than just a few hours to design and implement tests:

- shared arrays across partitions in a vtkPartitionedDataSetCollection of cell-grids;
- handling distributed data and ghost-cell computation; and
- re-use of topological connectivity across ranges of timesteps.

The basic implementation should be pretty simple and only a day or two of effort.

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