# Warning at import dolfinx

**URL:** <https://fenicsproject.discourse.group/t/warning-at-import-dolfinx/9366>\
**Category:** dolfinx\
**Created:** [September 26, 2022, 3:14pm UTC](https://fenicsproject.discourse.group/t/warning-at-import-dolfinx/9366 "2022-09-26T15:14:16Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![wvanharten](https://avatars.discourse-cdn.com/v4/letter/w/5daacb/32.png) [@wvanharten](https://fenicsproject.discourse.group/u/wvanharten)\
**Post date:** [September 26, 2022, 3:14pm UTC](https://fenicsproject.discourse.group/t/warning-at-import-dolfinx/9366/1 "2022-09-26T15:14:16Z")

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Hi there,

I’m using the `dolfinx/dolfinx:v0.5.1` docker image. When start the docker image with

`docker run --rm -ti dolfinx/dolfinx:v0.5.1`,

and I open python with

`root@20214dc430d0:~# python3`

and import `dolfinx` I get the following error message

```auto
>>> import dolfinx
hwloc/linux: Ignoring PCI device with non-16bit domain.
Pass --enable-32bits-pci-domain to configure to support such devices
(warning: it would break the library ABI, don't enable unless really needed).
>>> 

```

Does someone know if this warning is important? Or can I ignore it?

Thanks in advance,

- Wouter