No systemctl, this should be docker restart nova_compute https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/13/html/instances_and_images_guide/ch-cpu_pinning#annotations:f824755d-01e8-43cf-8418-58113891126c
Updated and merged for OSP13-queens See update here: https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/13/html-single/instances_and_images_guide/#ch-cpu_pinning
Also updated for OSP14-rocky. See update here: https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/14/html-single/instances_and_images_guide/?lb_target=production#ch-cpu_pinning