Annual Report_Abridged - Second Version - FINAL

28 4) ExpansionofMALSarchival storageby1PiB 5) Network monitoring and Analysis Software setup 6) Replacement of existing Email Servers hardware The next phase of MALS observations focusing on the UHF band (remaining ~1100 hrs) was scheduled to start in 2023. To process MALS data, we have procured 4PB PFS storage (hot), 1PB (archival storage), and 1PB tape storage(cold). Till now, we have received about 150 tapes containing L band data. We expect 81 tapes containing UHF band data by next month and will receive around 250 in the near future. We have moved about 1PB of processed L band data to archival storage, and still, 1.5PB of the processed data is on PFS storage. Hence, the archival storage is expanded by an additional 1 PiB, so processed L-band data may be moved from the PFS storage to archival storage, enabling the processing of UHF datasets. IUCAA has an extensive network (wired LANS and W-LAN). As the number of users increases, the network complexity increases, and keeping the network system secure and running is paramount. A new network monitoring and management software, has been procured that helps in monitoring, manage, and providing ease of maintenance, reducing significant network issues and to ensure the utmost uptime. IUCAA hosts Zimbra email services on the two dedicated servers with the warranty is about to expiring. Two new servers have been procured to ensure uninterrupted mail services. 7) Renewal ofAstronomical softwareservices. HighPerformanceComputing IUCAA currently has threemajor independent HPC clusters dedicated to different applications, namely Pegasus, SARATHI and VROOM. The Pegasus Cluster is to serve the general computing requirement of the astronomy community associated with IUCAA. It has 80 compute nodes, 4 gpu nodes with 32 cores and 384 GB (on old) & 512GB RAM (on new). It uses InfiniBand EDR (100Gbps) as an inter-connect, and Portable Batch System (PBS) as a job scheduler. For visualisation purposes, there are two dedicated graphics nodes equipped with NVIDIA Tesla P100 GPU cards. The cluster consists of more than 2600 Physical cores. The cluster is attached to a 2 PiB parallel file system (Lustre), which is capable of delivering 15 Gbps throughput. Theoretical computing speed of the Pegasus Cluster is 150 TF. The Pegasus cluster has been utilized by about 70 high volume users Scientists at IUCAA carry out research in a wide range of Astronomy and Astrophysics, such as Classical and quantum gravity, Cosmic magnetic fields, cosmology, large- scale structure, Galactic and extragalactic astronomy, Gravitational waves, High energy astrophysics, Instrumentation for astronomy, Observational Astronomy (Optical, UV, X-ray, and Radio), Quantum metrology for precision measurements, Solar Physics, and many more. Many of these fields require high-level data visualizations out of complex numerical data. To help create such meaningful visualizations, IUCAA procured the licenses for Mathematica, Matlab, and IDL software services.