wiki:DRM4G/FAQ

Version 4 (modified by minondoa, 6 years ago) (diff)

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Frequently Asked Questions

Is GridWay and DRM4G's source code available?

  • Yes, you can download it from here.

How can I compile it?

  • Yes, you can follow the instructions detailed here.

Can I submit MPI jobs by using DRM4G?

  • Yes, there are two variables: NP and PPN which help you to do that.
  • You can find an example of how to do it here.

How many jobs can I submit?

  • You can submit 200,000 jobs.

Pip won't install drm4g

  • Try updating pip: sudo pip install --upgrade pip
    • And remember that if you're not adding any installation options or doing it in a virtual environment you need to run sudo pip install drm4g.

When installing with pip, I get a SNIMissingWarning or InsecurePlatformWarning

  • The problems you're having are related with your versions of python and your virtual environment. They can be ignored since they don't affect the installation process.
  • One solution for solving the SNIMissingWarning and InsecurePlatformWarning warnings is to upgrade to a more recent version of Python.
    • If for any reason you are not able to upgrade, you can also run pip install 'requests[security]' as explained ​here.


Common errors

When running drm4g start this error occurs:

Error! Lock file $DRM4G_DIR/.drm4g/var/.lock exists.
  • Running drm4g stop before starting DRM4G should resolve the issue.
  • This happens when DRM4G hasn't been properly closed.