PID: 21.15115/SERV-0000-0002

GRNET (National Infrastructures for Research and Technology) provides high performance computing resources to the Greek and international scientific and research communities in order to conduct scientific research.It is a typical HPC system.

All compute nodes are used through SLURM resources/workload manager, they are not directly accessible by end user and they havn’t internet access. All compute jobs run through SLURM. Access to the system is allowed only via SSH from specific Ips/networks to login nodes from which all data management/transfers, job submition etc. are performed. Only local LDAP authentication is supported.

Authorization to use each partition, run limits, budget, accounting etc. are handled by SLURM. System has total 2 PB (raw) shared storage (gpfs) with usable, after raid etc. capacity of 1.4 PB splitted in three partitions with tuning for different types of storage usage.

It supports large number of applications, optimized for each partition hardware. Software is organized via environment modules. It supports containers (ONLY singularity). Its average yearly usage is 86.6% during last year – including downtimes.