6.2.2. AMD EPYC Processor
Cornelis Networks recommends that you refer to the AMD High Performance Tuning Guide relevant to your generation of EPYC processor.
Note
On AMD platforms, you must set iommu=pt as a kernel boot parameter, follow the instructions provided in the IOMMU Passthrough Mode.
BIOS Setting | Value | Description |
|---|---|---|
Simultaneous Multi-Threading (SMT) | Disabled | Best performance for HPC workloads typically seen when SMT is disabled. |
L3 Cache as NUMA Node | Disabled | Simplifies NUMA topology and improves bandwidth. |
APBDIS | Enabled | Disables dynamic power management. |
NUMA per socket (NPS)1 | No recommendation | Number of NUMA nodes per socket. |
NOTE:
| ||