+++ This bug was initially created as a clone of Bug #1906026 +++
NovaCPUAllocationRatio THT role parameter was not backported to queens/OSP13. Instead ExtraConfig  can be used to customize in OSP13:
This BZ is to track backport of https://review.opendev.org/c/openstack/tripleo-heat-templates/+/675854 to queens/OSP13
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory (Red Hat OpenStack Platform 13.0 bug fix and enhancement advisory), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.