On 3/28/2022 3:56 AM, Varghese, Vipin wrote: > Hi Thomas, > > <snipp> > > 26/03/2022 08:32, Vipin Varghese: >>> enhance python logic to accomadate NUMA information. Current logic >>> considers physical socket with CPU threads to core map. With new AMD >>> SKU vairant NUMA is no longer same as SOCKET. Single physical socket >>> can be partitioned to variant of 1,2 and 4. >>> >>> The changes address the new mapping with Socket-NUMA to CPU cores. >>> >>> Signed-off-by: Vipin Varghese <[email protected]> >>> --- >>> usertools/cpu_layout.py | 76 >>> +++++++++++++++++++++++++---------------- >>> 1 file changed, 47 insertions(+), 29 deletions(-) >> Honestly, I'm not sure it is a good idea to keep this script in the DPDK >> repo. >> Can it be replaced with hwloc usage? > > thanks for the suggestion, it is genuine and useful. Following is my > observations > > - It takes some effort to identify the NUMA with `Group` > - One needs to install ` lstopo-no-graphics` on distro and manually build > and add on custom Linux. > > >> What is the output on the new AMD SKU for this command? >> lstopo-no-graphics --merge > > I have tried ` lstopo-no-graphics --merge` on a ` 2 Socket AMD EPYC 7713 > 64-Core Processor` with > possible NUMA configuration such as 1, 2 and 4. >
Hi Thomas, Should we document preferred tool and usage in DPDK, if so where is good location for it? Also @Dmitry, is there solution for Windows for this issue (a tool to replace cpu_layout.py)? Thanks, ferruh
