Re: [OMPI devel] Socket buffer sizes

2017-05-15 Thread r...@open-mpi.org
Thanks - already done, as you say > On May 15, 2017, at 7:32 AM, Håkon Bugge wrote: > > Dear Open MPIers, > > > Automatic tuning of socket buffers has been in the linux kernel since > 2.4.17/2.6.7. That is some time ago. I remember, at the time, that we removed > the default setsockopt() for

[OMPI devel] Socket buffer sizes

2017-05-15 Thread Håkon Bugge
Dear Open MPIers, Automatic tuning of socket buffers has been in the linux kernel since 2.4.17/2.6.7. That is some time ago. I remember, at the time, that we removed the default setsockopt() for SO_SNDBUF and SO_RCVBUF in Scali MPI. Today, running Open MPI 1.10.2 using the TCP BTL, on a 10Gbit