Hi, I've deployed an overcloud with RHOSP11 with multiple roles for compute nodes with ovs-dpdk. I used a different role for each group of compute nodes that have a different amount cores. Therefor I set the following parameters to set the cores configuration accordingly NeutronDpdkCoreList: "100" HostCpusList: "100" ComputeV4NeutronDpdkCoreList: "22,46,23,47" ComputeV4HostCpusList: "0,24" ComputeV4ExtraConfig: nova::compute::vcpu_pin_set: ['1-21','25-45'] vswitch::dpdk::pmd_core_list: "22,46,23,47" vswitch::dpdk::host_core_list: "0,24" ComputeV4KernelArgs: "default_hugepagesz=1GB hugepagesz=1G hugepages=124 intel_iommu=on iommu=pt" ComputeV4HostIsolatedCoreList: '1-23,25-47' ComputeV4NeutronDpdkCoreList: "22,46,23,47" ComputeV4HostCpusList: "0,16" ComputeV3ExtraConfig: nova::compute::vcpu_pin_set: ['1-13','17-29'] vswitch::dpdk::pmd_core_list: "14,15,30,31" vswitch::dpdk::host_core_list: "0,16" ComputeV3KernelArgs: "default_hugepagesz=1GB hugepagesz=1G hugepages=124 intel_iommu=on iommu=pt" ComputeV3HostIsolatedCoreList: '1-15,17-31' NeutronDpdkCoreList and HostCpusList have dummy values that are overwritten by "vswitch::dpdk::pmd_core_list" and "vswitch::dpdk::host_core_list" under [ROLE]ExtraConfig part The [ROLE]NeutronDpdkCoreList, [ROLE]HostCpusList, [ROLE]HostIsolatedCoreList are used in the first_boot.yaml It works but wondering if there is a better way to do that?? Samuel