On Tue, Nov 17, 2020 at 02:57:57AM +0000, Christopher Lameter wrote: > We have a large number of apps running on the same host that are all > sending to the same set of hosts. Lots of requests for address resolution > are going to the SM and for a large set of hosts this can become too much > for the SM. > > Is there something that can locally cache the results of the SM queries to > avoid additional requests? > > We have tried IBACM but the address resolution does not work on it. It is > unable to complete a request for any address resolution and leaves kernel > threads that never terminate instead. If it really doesn't work at all any more we should delete it from rdma-core if nobody is interested to fix it. Haakon and Mark had stepped up to maintain it a while ago because they were using it internally, so I'm surprised to hear it is broken. Jason