# parallel reader

**URL:** https://discourse.paraview.org/t/parallel-reader/9286
**Category:** Development
**Created:** [March 27, 2022, 1:19pm UTC](https://discourse.paraview.org/t/parallel-reader/9286 "2022-03-27T13:19:38Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![fvitello](https://discourse.paraview.org/user_avatar/discourse.paraview.org/fvitello/32/8783_2.png) [@fvitello](https://discourse.paraview.org/u/fvitello)
#### Post date: [March 27, 2022, 1:19pm UTC](https://discourse.paraview.org/t/parallel-reader/9286/1 "2022-03-27T13:19:38Z")

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Hi all,

i want to parallelize my own reader (FITS file, vtkImageData) with MPI. Can you point me on how to implement parallelism? Now if I execute pvserver with mpi the data is reader and replicated for each process.

Thanks

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### Author: ![danlipsa](https://discourse.paraview.org/user_avatar/discourse.paraview.org/danlipsa/32/1563_2.png) [@danlipsa](https://discourse.paraview.org/u/danlipsa)
#### Post date: [March 28, 2022, 1:50pm UTC](https://discourse.paraview.org/t/parallel-reader/9286/2 "2022-03-28T13:50:01Z")

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See following slides on parallel IO:  
[https://data.kitware.com/#item/6109948b2fa25629b9bb616c](https://data.kitware.com/#item/6109948b2fa25629b9bb616c)