.. _system_overview_graviton:
.. _AlmaLinux-referencia: https://almalinux.org/
.. _RHEL9-referencia: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.2_release_notes/index


Graviton System Overview
========================
All the infrastructure is running on Alma Linux 9.2, which is a free linux distribution based on Red Hat Enterprise Linux (RHEL) 9. More information on:
  
- `AlmaLinux OS <https://almalinux.org/>`_

..

- `RHEL9 oficial documentation <https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/9.2_release_notes/index>`_

The hardware nodes of the infrastructure are divided in three classes:

- User Interfaces (UI) : the entry point for users, provide a working environment where to compile and test their programs. When the jobs are ready, users can submit their production batch jobs with Job Management System to the Worker Nodes.

..

- Worker Nodes (WN): where the production user jobs are executed.
      
..

- Storage Nodes(SN): disk servers to store user and project data.

All the nodes of GRAVITON are connected throught Infiniband Network (200 GBE)

.. list-table::
   :align: center
   :widths: 25 25 25 25 25 25 25 25 25
   :header-rows: 1

   * - Name
     - Role
     - N\. Cores / 
     
       Threads
     - Memory
     - Disk Size
     - CPU
     - Model
     - Network     
     - Acquisition

       year


   * - graviton
     - UI/WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-1024US-TRT
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2023

   * - gr02
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-1024US-TRT
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2023

   * - gr03
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-1024US-TRT
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2023

   * - gr04
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-2024S-TR
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2024

   * - gr05
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-2024S-TR
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2024

   * - gr06
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-2024S-TR
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2024

   * - gr07
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-2024S-TR
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2024

   * - gr08
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-2024S-TR
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2024

   * - gr09
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-2024S-TR
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2024

   * - gr10
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-2024S-TR
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2024

   * - gr11
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-2024S-TR
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2024

   * - gr12
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-2024S-TR
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2024

   * - gr13
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-2024S-TR
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2024

   * - gr14
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-2024S-TR
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2024

   * - gr15
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-2024S-TR
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2024

   * - gr16
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-2024S-TR
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2024

   * - gr17
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-2024S-TR
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2024

   * - gr18
     - WN
     - 56/56
     - 256 GB DDR4
     - 3 x HD SSD 1 TB (RAID 0)
     - 2 x AMD EPIC(TM)
     
       7453\@2.75GHz
     - Supermicro AS-2024S-TR
     - Infiniband Mellanox

       MCX653105A-HDAT HDR (200GBE)
     - 2024