Increase robustness: version check, prevent precompilation with MPI, automatically precompile in the workchain

[Technici4n]

Depends on epfl-matmat/AiidaDFTK.jl#23.

• Add a version check to validate that the AiidaDFTK version matches what we expect. Fixes Version consistency check #10.
• Prevent precompilation deadlocks when running with MPI by passing --compiled-modules=strict. Fixes Precompilation and MPI don't play well together #16.
• Read new errors.log output file (see Add errors file and version check support epfl-matmat/AiidaDFTK.jl#23) to detect:
  • Environment issues, when Imports succeeded could not be reached.
  • Graceful shutdown, when Finished successfully was reached.
• Automatically try to precompile AiidaDFTK in the workchain whenever an environment issue is detected.

[mfherbst]

Puh some of this Aiida stuff is really quite ugly.

[mfherbst]

Actually one question: What will happen if a user badly messed up their AiidaDFTK installation ? Will this also trigger a precompile ? Maybe even get caught in an infinite loop ?

[Technici4n]

The expected behavior is that it will attempt a precompilation, the precompilation will fail, and the workchain will terminate. There should hopefully not be an infinite loop because:

• The _attempted_precompilation_extra extra¹ prevents multiple precompilations.
• If the precompilation fails, the workchain is immediately terminated with ERROR_PRECOMPILATION_FAILURE.

Footnotes

1. In AiiDA, an extra is a mutable node property. ↩