Re: [OMPI users] v2.1.1 How to utilise multiple NIC ports

2018-12-22 Thread Bob Beattie
Many, many thanks. Couldn't see the wood for the trees ! I now have the two machines using all their 1Gb ports to talk to each other. Cheers Jeff, Happy holidays. Bob. South UK. ___ users mailing list users@lists.open-mpi.org

Re: [OMPI users] v2.1.1 How to utilise multiple NIC ports

2018-12-22 Thread Jeff Squyres (jsquyres) via users
On Dec 22, 2018, at 10:56 AM, Bob Beattie wrote: > > How do I now go about setting up /etc/hosts, -hostfile entries and bringing > them all together on the mpirun run line ? > For example, my 2nd machine is a quad core Dell T3500. Should I create a > separate entry in /etc/hosts for each NIC

Re: [OMPI users] v2.1.1 How to utilise multiple NIC ports

2018-12-22 Thread Bob Beattie
Hi Jeff, > How are you measuring that it hasn't been successful? A network switch sits between the two machines and I am watching the link activity on the ports. > One thing to make sure of is that you interfaces are on different subnets. Oh. I had them all on the same subnet. Now the first

Re: [OMPI users] v2.1.1 How to utilise multiple NIC ports

2018-12-20 Thread Jeff Squyres (jsquyres) via users
On Dec 20, 2018, at 3:33 PM, Bob Beattie wrote: > > I'm working on OpenFOAM v5 and have been successful in getting two nodes > working together. (both 18.04 LTS connected via GbE) > As both machines have a quad port gigabit NIC I have been trying to persuade > mpirun to use more than a single