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  1. AI Platform Core Components
  2. AIPCC-1289

Tech Preview: IBM Z CPU (s390x architecture) support

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      Oct 8 2025 Red

      GitLab runners are not working, AIPCC-5758

      Oct 1 2025: Green We (RH & IBM) have runners functional, and are working to build a base image.  We have discovered that PDFium is not big-endian safe and will require man-months of effort.  IBM has agreed to not support PDF scanning in RHAIIS for z/s390.  IBM are continuing to attempt to build images.

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      Oct 8 2025 Red GitLab runners are not working, AIPCC-5758 Oct 1 2025: Green We (RH & IBM) have runners functional, and are working to build a base image.  We have discovered that PDFium is not big-endian safe and will require man-months of effort.  IBM has agreed to not support PDF scanning in RHAIIS for z/s390.  IBM are continuing to attempt to build images.

      Feature Overview (mandatory - Complete while in New status)

      IBM has requested support for IBM z-series in RHELAI. This requires the AIPCC team to build packages for IBM z. This work includes confirming functionlity of wheels and rpms that the AIPCC team builds.

      The IBM z-series team will be responsible for providing source code for shipped packages, and providing modifications to CI/CD to build packages within our infrastructure. This may or may not require z-based VMs, z-hardware, etc.

      Goals (mandatory - Complete while in New status)

      • Support IBM team building RHEL AI for Z

      Requirements (mandatory -_ Complete while in Refinement status):
      A list of specific needs, capabilities, or objectives that a Feature must deliver to satisfy the Feature. Some requirements will be flagged as MVP. If an MVP gets shifted, the Feature shifts. If a non MVP requirement slips, it does not shift the feature.

      Requirement Notes isMVP?
           
           

       

      Done - Acceptance Criteria (mandatory - Complete while in Refinement status):

      Full RHEL AI builds for Z are released

      Use Cases - i.e. User Experience & Workflow: (Initial completion while in Refinement status):

       

      Out of Scope {}{}(Initial completion while in Refinement status):

      • IBM will be doing most of the work, so we expect to only need to review their changes.

      Documentation Considerations {}{}(Initial completion while in Refinement status):

      N/A

      Questions to Answer {}{}(Initial completion while in Refinement status):

       

      Background and Strategic Fit (Initial completion while in Refinement status):

      Customer Considerations {}{}(Initial completion while in Refinement status):

      N/A

      Team Sign Off (Completion while in Refinement status)

      • All required Epics (known at the time) are linked to the this Feature
      • All required Stories, Tasks (known at the time) for the most immediate Epics have been created and estimated
      • Add - Reviewers name, Team Name
      • Acceptance == Feature as “Ready” - well understood and scope is clear - Acceptance Criteria (scope) is elaborated, well defined, and understood
      • Note: Only set FixVersion/s: on a Feature if the delivery team agrees they have the capacity and have committed that capability for that milestone

      *An engineer or tech lead from the product requesting this feature is required for the signoff below.

      Reviewed By Team Name Accepted Notes
             
             
             
             

       

              mdean@redhat.com Meirav Dean
              prarit@redhat.com Prarit Bhargava
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                Created:
                Updated: