[Neolith-users] News about the continuing installation of Neolith

[Mattias Slabanja]

Hi!

During the downtime early this week, we have done some alterations to 
the system.

1. We have changed mpprun.
If you are launching an application built according to the NSC 
recomendations regarding compiler and mpi (compilers icc, icpc, or 
ifort, together with the flag -Nmpi), mpprun should now automatically 
choose the correct mpi-libriaries (i.e. there is no need to explicitly 
load any mpi-modules prior to starting an mpi-program with mpprun).

If you need/want to explicitly choose/override which mpi-implementation 
to use, it is possible to do so using the syntax
mpprun -Nforce-mpi=<mpi module> <mpi-program>.
Note that the mpi module given must contain the full module name 
including version, e.g.
mpprun -Nforce-mpi=scampi/3.12.0-1 ~/my-program


2. We have changed the whole system for deploying nodes.
Ideally, this is and will be totally transparent to you, but minor 
configuration changes and/or glitches might show.

Best regards,

The Neolith team