Section: New Results

Static modeling of clusters of multicore and heterogeneous nodes

We improved the hwloc software to better manage clusters of nodes. This first includes the management of HPC node I/O devices by providing easy ways to retrieve the locality of GPUs and network interfaces. A scalable global view of clusters can be built by factorizing the common topology information that is usually shared by many similar nodes [20] . Finally the topology of the network assembling all these nodes can be exposed in a generic technology-independent manner using the new netloc tool [21] that is now part of hwloc.