# vtkPStreamTracer
**URL:** https://discourse.vtk.org/t/vtkpstreamtracer/13413
**Category:** Support
**Tags:** code
**Created:** [February 29, 2024, 3:47am UTC](https://discourse.vtk.org/t/vtkpstreamtracer/13413 "2024-02-29T03:47:32Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@shwxh](https://discourse.vtk.org/u/shwxh)
#### Post date: [February 29, 2024, 3:47am UTC](https://discourse.vtk.org/t/vtkpstreamtracer/13413/1 "2024-02-29T03:47:33Z")
Dear Sir, hello. I saw that you submitted a class called vtkPStreamTracer on GitHub, which is about streamline parallel computing. I would like to know how it supports streamline parallel computing on multiple machines and processes, as well as how it splits and merges data. There are no relevant examples available online, which makes it very difficult for me to use. Can you provide me with an example of streamline parallel computing, a small demo. I will be very grateful to you
---
### Author:  [@mwestphal](https://discourse.vtk.org/u/mwestphal)
#### Post date: [February 29, 2024, 1:31pm UTC](https://discourse.vtk.org/t/vtkpstreamtracer/13413/2 "2024-02-29T13:31:41Z")
Are you @sun ?
[https://discourse.paraview.org/t/use-vtkpstreamtracer-demo/13832](https://discourse.paraview.org/t/use-vtkpstreamtracer-demo/13832)
---
### Author:  [@mwestphal](https://discourse.vtk.org/u/mwestphal)
#### Post date: [February 29, 2024, 1:32pm UTC](https://discourse.vtk.org/t/vtkpstreamtracer/13413/3 "2024-02-29T13:32:32Z")
In any case, you can find examples here:
[https://gitlab.kitware.com/vtk/vtk/-/blob/v9.3.0/Filters/ParallelFlowPaths/Testing/Cxx/TestPStream.cxx](https://gitlab.kitware.com/vtk/vtk/-/blob/v9.3.0/Filters/ParallelFlowPaths/Testing/Cxx/TestPStream.cxx)