Every LBT computing resources (HPC, storage and IS clusters) are internally designed and built, and based on open-source software and solutions.
Currently in the cluster room we have 2 HPC clusters (a.k.a. Supercomputers), called Hades and Baal, that are composed as following:
Because it will not do any good to compute without storage capacity, following storage volumes are also available:
Except for *ibpc_team and /scratch volumes, all above-mentioned volumes are replicated and/or distributed on a storage cluster currently composed by 11 servers.
/scratch volume on each node serves only to store temporary computing files. So, because it's cleared every night (deleting old job's directories and all not well-formed directories), you should not try to use it for chaining jobs in a single -but dedicated- scratch directory.
In order to get the best performance as possible, we choose a high throughput and low latency network technology: Infiniband QDR (40Gbs).
Below, the evolution year-per-year of the computing performance and storage: