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[Bug 2114172] [NEW] packing_host_numa_cells_allocation_strategy is ignored for pci-requests

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Johannes Beisiegel <2114172@xxxxxxxxxxxxxxxxxx>
Date: Thu, 12 Jun 2025 11:30:43 -0000
Reply-to: Bug 2114172 <2114172@xxxxxxxxxxxxxxxxxx>
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Public bug reported:

The `packing_host_numa_cells_allocation_strategy` config setting was introduced to
allow spread or pack based on numa nodes. However if pci devices are requested
this setting is ignored and set to always `spread`.

In some cases it is desirable to also allow packing with pci-devices.

Related to: https://bugs.launchpad.net/nova/+bug/1940668

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2114172

Title:
  packing_host_numa_cells_allocation_strategy is ignored for pci-
  requests

Status in OpenStack Compute (nova):
  New

Bug description:
  The `packing_host_numa_cells_allocation_strategy` config setting was introduced to
  allow spread or pack based on numa nodes. However if pci devices are requested
  this setting is ignored and set to always `spread`.

  In some cases it is desirable to also allow packing with pci-devices.

  Related to: https://bugs.launchpad.net/nova/+bug/1940668

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