I agree. The topology.conf file is used to help Slurm place jobs on
nodes that are as close to each other as possible wrt the primary
interconnect. For example, we typically use InfiniBand for MPI and
SHMEM, and Ethernet for Slurm communication, so what's important to
us is the location of the nodes on the IB fabric.
Andy
On 12/13/2014 09:08 AM, Antony Cleave
wrote:
Re: [slurm-dev] Quick question on use of topology.conf
I think the quick answer is no.
I will use an example of a system I configured
recently to explain. This system uses a 1Gb network for all
slurm traffic and system services and an infiniband network for
interprocess communication. As such I configured the topology
file to be based on the infiniband switch topology rather than
the ethernet topology.
Antony
On 13 Dec 2014 12:53, "Williams, Kevin E.
(Federal C&I)" <[email protected]>
wrote:
Researching
the use of topology.conf and wondering if the switch topology
used must correspond to the interconnect that is used for
slurm communications. That is, if nodes in the slurm
configuration have multiple interconnects available, and the
one used to define the nodes in slurm partitions is a 1GB
network, does the switch topology have to reflect that
particular network topology?
