Thank you so much for commenting. It is great to hear that the deep learning automation department of Nvidia is using GitLab and is happy with everything working in harmony.
Please comment in the issues if you have additional details about the use case or questions.
The costs of GitHost.io correlate with the storage since they are Digital Ocean instances. Not sure how to solve. Maybe by allowing to use their networked storage, but this seems complex. Consider emailing support@gitlab.com if you have any questions or suggestions.
You can also switch your container registry to use S3, which might be more cost-effective. I'm not positive if GitHost.io supports that, but it likely does.