A Resource and Job Management System (RJMS) is a crucial system software part of the HPC stack. It is responsible for efficiently delivering computing power to applications in supercomputing environments and its main intelligence relies on resource selection techniques to find the most adapted resources to schedule the users' jobs. In [8], we introduced a new topology-aware resource selection algorithm to determine the best choice among the available nodes of the platform based on their position in the network and on application behaviour (expressed as a communication matrix). We did integrate this algorithm as a plugin in Slurm and validated it with several optimization schemes by making comparisons with the default Slurm algorithm. This paper presents further experiments with regard to this selection process.