The Cluster is made of some servers and blades organized in 3 racks physically located in the Cluster Room and Datacenter Room in Mancinelli site. The main hardware components where part of the former Labs cluster, new acquisitions and one blade from Mathematics Dept. Datacenter donated from a Research group of DICA.

The Masternode provides:

1. A file system /opt/ohpc/pub/ on local Raid storage for installed applications, shared via NFS on Gbit network
2. A file system /homes on Dept. Storage (up to 35 TB) for user homes shared via NFS on Gbit or 10Gbit network (Morgana nodes have 1 Gb bandwidth guaranteed due to 10Gb Ethernet hardware)
3. A file system /scratch on local Raid storage (up to 5.5 TB) for scratch shared via NFS on Gbit or 10Gbit network (Morgana nodes have 1 Gb bandwidth guaranteed due to 10Gb Ethernet hardware)
4. Login for users via SSH and via Web SSH interface
5. Node provisioning software (installation of new nodes and node rebuild in less than 5 min.)
6. PBSPro master for scheduling and resource management
7. Support for Singularity container technology
8. Infiniband network controller (via software)
9. Application software for compute nodes
10. Monitoring and utility software: Ganglia, Nagios
11. Documentation website: http://masternode.chem.polimi.it accessible only from the wired DCMC network or via DCMC VPN
12. Web SSH interface https://masternode.chem.polimi.it/webssh accessible only from the wired DCMC network or via DCMC VPN
13. Web interface to PBSPro submission: planned for 2019

The cluster has been installed following the directions of the OpenHPC Project, an open source project backed by Intel and many software and hardware HPC player and supported by a strong developer community. The main reason for this choice is that they committed to support the upgrade of the software platform following the evolution of the single components (OS, compilers, MPI distributions, toolchains components, utility software, hardware support, container technology) and also for their independence from a specific vendor or technology. The installed software is divided in Management and operations software and Application software. At the startup on April, 1st 2019 the software are:

1. OpenHPC 1.3.6 (October 2018) for Linux CentOS 7.5 nodes image
2. PBS Pro 18.1 (Altair released PBSPro as open source in mid 2016)
3. Compilers: GCC 5.4.0, GCC 7.3.0, GCC 8.2.0, Intel C++/Fortran/MPI 19.0.3.199 ver. 2019 update 3
4. MPI: OpenMPI 1.10.7, OpenMPI 3.1.2, Intel MPI 2019.3, MPICH 3.2.1, MVAPICH2 2.2, MVAPICH2 2.3
5. Ganglia for monitoring cluster performance (public access)
6. Nagios for monitoring nodes health status (restricted access)

1. Abaqus 2017
2. Abaqus 2018
3. Abaqus 2019
4. Ansys 19.3 2019 R1 (Fluent and LSDYNA)
5. Comsol 5.4
6. Matlab R2019a with parallel support
7. Python 2.x stack with Scipy,Numpy,Mpi4Py
8. Python 3.4 stack with Scipy,Numpy,Mpi4py
9. AdIOS
10. HDF5 and pHDF5
11. NetCDF and pNetCDF
12. SIONLIB
13. R 3.5
14. Trilinos 12.12.1

And many more libraries and tools for parallel and scalar scientific programming.

Queues and access to the cluster
PBS jobfile structure
Modules