# Windows: Cannot run ff-mpirun

**URL:** https://community.freefem.org/t/windows-cannot-run-ff-mpirun/104
**Category:** FreeFEM installation
**Created:** [August 1, 2019, 8:16pm UTC](https://community.freefem.org/t/windows-cannot-run-ff-mpirun/104 "2019-08-01T20:16:48Z")
**Posts on this page:** 1
**Showing post:** 4

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### Author: ![robin997](https://avatars.discourse-cdn.com/v4/letter/r/dfb087/32.png) [@robin997](https://community.freefem.org/u/robin997)
#### Post date: [August 10, 2019, 7:13pm UTC](https://community.freefem.org/t/windows-cannot-run-ff-mpirun/104/4 "2019-08-10T19:13:55Z")

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@simon.garnotel

Hello,

This command does create multiple processes, however, it seems to just create copies of the same process. I ran it with this code on github for example (8 processes), it creates 8 plots of the same mesh, all of them is Mesh Partition #1. I tested changing the number of processes, and they took the same time to solve.

> <https://github.com/FreeFem/FreeFem-sources/blob/develop/examples/ffddm/Maxwell_Cobracavity.edp>

I don’t know how it supposed to look like when run correctly… is it supposed to be plotting Partition #1, #2, #3, up to #8 ?

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