I guess what I am wondering about is what "the right stuff" is. If I build
OpenMPI-3 for a set of hosts with singularity support, along with OPA support,
etc. then does any openmpi built inside the container need to also include OPA,
or IB, etc., or is that just handled with the singularity supp
FWIW: we also automatically detect that the application is a singularity
container and do the right stuff
> On Dec 12, 2018, at 12:25 AM, Gilles Gouaillardet wrote:
>
> My understanding is that MPI tasks will be launched inside a singularity
> container.
>
> In a typical environment, mpirun
My understanding is that MPI tasks will be launched inside a singularity
container.
In a typical environment, mpirun spawns an instance of the orted on each
node, and then each orted daemon (or mpirun on the local node) fork&exec
the MPI tasks (a.out)
With singularity, orted would fork&exec
Greetings,
Could someone explain, or point to documentation that explains, what the
--with-singularity option enables with regard to OpenMPI support for
singularity containers?
Thanks.
Glenn Johnson
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