BMI Council meeting 2025-06

General
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The BMI Council is a group of volunteers from the community who help guide the development of the Basic Model Interface (BMI). The Council meets regularly through the year. The next meeting is Monday, June 2, 9 am MDT over Zoom.

The agenda:

  • welcome new Council member @BSchilperoort
  • parallel BMI
  • extension framework for BMI

If you’re interested in learning about, and helping to shape, the future of BMI, please consider joining us for the meeting. Message me here or email me and I’ll send you the meeting link.

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I would loved to have joined for the meeting, but unfortunately I’m at an all day workshop in Brussels and I suspect we’ll go on past 9am MDT! I’d be interested to hear back afterwards though if there are notes or a recording :slight_smile:

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Yes, we’ll post meeting notes here! @PhilMiller did a really nice job last time (thank you, Phil!).

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I’d love to join and am free.

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A bit tangential, but a nice blog post by Anil Dash on standards and interoperability (in the internets).

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https://dl.acm.org/doi/fullHtml/10.1145/3615318.3615319
Is a great reference on the benefits of ABI compatibility, and the effort involved in attaining it.

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Meeting notes

12 participants.

@gregtucker reminded us of the BMI governance document, emphasizing how we can move forward with consensus.

Scott Peckham presented his work on the concept of variable roles in BMI. This addition to BMI was proposed to address how models in the NOAA NextGen framework could be serialized and checkpointed.

Scott’s presentation spawned a lively discussion on what would constitute an extension to BMI. (See the working document in this post.)

@gregtucker brought the discussion back to what should be in BMI v3.0. It was nicely summarized by @Nels:

Getting mechanics for supporting generic extensions first would allow some significant compatibility and room to explore

To this end, @Nels and @PhilMiller volunteered to start scoping out a technical specification for BMI extensions. They’ll present their work at the next meeting.

The next BMI Council meeting will be in August.

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