Toyota POC — No Hotfix, Demo MPI and PBS Separately

Situation

Decided NOT to rush a hotfix for Toyota's urgent out-of-scope MPI-via-PBS request before their Thursday director meeting. Team will demo MPI and PBS as separate working components, explain the integration bug is known, and commit to fix in ~1 week by the March 17 Reno meeting.

Reasoning

Shipping an untested hotfix could destabilize an otherwise successful POC — risk of breaking what works is worse than missing an arbitrary deadline. Toyota's request was out of scope AND last-minute (director meeting CIQ wasn't aware of). Demonstrating both components separately proves capability while being honest about the integration gap — builds trust. The ~1 week timeline to Reno gives engineering real testing time.

Additional Context

Toyota urgently requested MPI support via PBS for a director meeting Thursday (Japan time). MPI jobs work and PBS jobs work, but integration is a newly discovered bug not in original POC scope. Core OpenFOAM and LS-Dyna workflows confirmed working. GCP prototype also active with code review scheduled next week. Other out-of-scope requests deferred to Reno meeting prioritization with Yoshi using recent $50k payment.

Observed Evidence

Fathom: 'Decision: Do not attempt a hotfix for the Thursday deadline.' 'Demo a complex MPI job to prove MPI functionality. Demo a separate job running successfully on PBS. Explain the integration bug is known and will be fixed in ~1 week.' 'Shipping an untested hotfix could destabilize the otherwise successful POC, which would be worse than missing the deadline.'

Matching Patterns

Confidence Breakdown

Reasoning Depth Analysis