The supercomputer is named after the godess in norse mythology associated with wisdom. Saga is also a term for the Icelandic epic prose literature. The supercomputer, placed at NTNU in Trondheim, is designed to run workloads from Abel and Stallo. It was made available to users right before the start of the 2019.2 period (October 2019).

Saga is provided by Hewlett Packard Enterprise and has a computational capacity of approximately 85 million CPU hours a year and a life expectancy of four year, until 2023.

Technical details

Main components

  • 200 standard compute nodes, with 40 cores and 192 GiB memory each
  • 28 medium memory compute nodes, with 40 cores and 384 GiB of memory each
  • 8 big memory nodes, with 3 TiB and 64 cores each
  • 8 GPU nodes, with 4 NVIDIA GPUs and 2 CPUs with 24 cores and 384 GiB memory each
  • 8 login and service nodes with 256 cores in total
  • 1 PB high metadata performance BeeGFS scratch file system
Details Saga
System Hewlett Packard Enterprise - Apollo 2000/6500 Gen10
Number of Cores 9824
Number of nodes 244
Number of GPUs 32
CPU type Intel Xeon-Gold 6138 2.0 GHz (normal)
Intel Xeon-Gold 6130 2.1 GHz (bigmem)
Intel Xeon-Gold 6126 2.6 GHz (accel)
GPU type NVIDIA P100, 16 GiB RAM (accel)
Total max floating point performance, double 645 Teraflop/s (CPUs) + 150 Teraflop/s (GPUs)
Total memory 75 TiB
Total NVMe+SSD local disc 89 TiB + 60 TiB
Total parallel filesystem capacity 1 PB

No network access on compute nodes

According to our security policy, compute nodes shall not have direct access to the public internet. This means that commands like git clone or conda install or pip install, updating Git submodules, fetching data from web sources, etc., will not work on compute nodes.

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