Error while reading large (55GB) rst files in PyDPF reader

Samukham

Hi,
I have an rst file and need to read that using dpf reader. The rest file is a bit large (55GB). When I read the rest file and while extracting the data from the file I encountered the following error:
*** oserror: exception: access violation reading 0x0000000000000030

The rest file contains the modal results. The analysis is performed to extract appx. 1000 modes.

However, if I perform the same analysis for fewer modes (10 modes) then I am able to read and extract the data from the rest file. No error was encountered in this case. The result file generated in this case if less than 1GB.

I am encountering the above error only if the rest file is very large.

Requesting guidance in solving this issue.

Thank you,

Samukham

Any suggestions on the above issue?
I am running the python script in Visual Studio. Is the issue with VS code or PyDPF?

Rajesh Meena

@Samukham Could you please provide more details? Ansys version, PyDPF version. Would it be possible for you to try latest standalone server?

https://dpf.docs.pyansys.com/version/stable/getting_started/dpf_server.html#install-dpf-server

I have personally post-processed large rsts, more than 100 GB of size.

Samukham

Hi @Rajesh Meena, I have updated the PyDPF version, and the problem is resolved. I think the issue was with the version.
Thanks for your response.