precice / precice/micro-manager

Running in serial with given decomposition leads to confusing message

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Dominant language
Python
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1h 46m
Merged PRs (30d)
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Description

Version 0.9.0

Using decomposition: [2,2] and running without mpi results in:

(0) 04/21/2026 03:22:37 PM - micro_manager.micro_manager - INFO - Axis-wise domain decomposition: [2, 2]
(0) 04/21/2026 03:22:37 PM - micro_manager.micro_manager - INFO - Domain decomposition is not specified, so the Micro Manager will expect to be run in serial.

The latter message is misleading.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Search the codebase for the logged message "Domain decomposition is not specified" and inspect the surrounding handling of the [2, 2] decomposition when running without MPI. Reproduce the serial run from the issue, then update the message so it accurately describes the configured decomposition and verify that the misleading wording no longer appears.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
tooling
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
68/100

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