Re: [OMPI users] Performance degradation of OpenMPI 1.10.2 when oversubscribed?

Hi, > On 26 Mar 2017, at 1:13 am, Jeff Squyres (jsquyres) > wrote: > Here's an old post on this list where I cited a paper from the Intel > Technology Journal. Thanks for that link! I need to go through it in detail, but this paragraph did jump out at me: On a processor with Hyper-Threading

Re: [OMPI users] Communicating MPI processes running in Docker containers in the same host by means of shared memory?

There are a couple of things you’d need to resolve before worrying about code: * IIRC, there is a separate ORTE daemon in each Docker container since OMPI thinks these are separate nodes. So you’ll first need to find some way those daemons can “discover” that they are on the same physical node.