High Performance Computing For Science

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Tag: Discover

  • Discover GPU Partition

    GPU Availability Within The Discover Cluster Scalable Unit 16 (SCU16) makes GPU resources available within the NCCS Discover cluster’s gpu_a100 partition, which comprises 10 AMD nodes that each include: Note: These nodes will be fully shared, with individual nodes running jobs belonging to multiple users. Each user is limited to a maximum of one node…

  • Discover SBU Rates

    The NCCS uses a Standard Billing Unit (SBU) for allocating and tracking computing time usage. The new SBU tracking system started to appear in usage reports October 2018. View the full set of SBU Conversion Factors and an explanation of changes on the NASA High-End Computing Website. ARCHITECTURE Supermicro TwinPro Supermicro TwinPro Supermicro FatTwin SGI Rackable…

  • Portable Distributed Scripts (PoDS)

    Run many independent serial jobs concurrently Some users may want to run a large set of sequential jobs, for example, post-processing or data archiving jobs, on Discover. Portable Distributed Scripts (PoDS) is a set of scripts created by SSSO that enables users to execute a series of independent, sequential jobs concurrently on Discover’s multi-core nodes.…

  • Discover SCU Hardware Specifications

    The following page contains hardware specifications for each of the Scalable Units, in the Discover cluster. Scalable Unit 16 – CPU-only Nodes Scalable Unit 16 – CPU & GPU Nodes Scalable Unit 17 – CPU-only Nodes Scalable Unit 18 – CPU-only Nodes

  • SSH Fingerprints

    Bastion Service (login.nccs.nasa.gov) Fingerprint MD5 [RSA] f1:12:60:c2:90:50:9e:5a:18:5b:54:f0:4f:25:6b:60 SHA256 [RSA] AXiAaDwklxb1qoBFoEMPZ/+EE/IB9j2mp6TY44W1CF0 SHA1 [RSA] mjFi13dUiHFs8Wly2hr9U3AKm4g MD5 [ED25519] 4d:28:91:64:25:eb:ff:f8:7d:44:f1:9c:a1:f7:cb:6c SHA256 [ED25519] j+kLZsJOuPV3WVY5PzyO/rfpdUw4bLOBqUMCa3wdsuE SHA1 [ED25519] vthL2pN7Lir+dy6Z/ucdsJgCgLM MD5 [ECDSA] fe:1a:d1:0e:3e:4e:02:c3:f1:27:66:95:05:18:f2:28 SHA256 [ECDSA] k1iG4MEErAzVClt9iDq9pFFpWfDcNvpQb7PiqdxMLwg SHA1 [ECDSA] 1Jx6Qm9m5FjKW1P2mpC2ox6RerY Discover login for the NASTRAN Project discover-nastran.nccs.nasa.gov MD5 [ED25519] 94:1a:33:31:34:2a:a0:22:08:58:e1:0e:e3:ef:60:21 SHA256 [ED25519] agk8tUw+vDzSALdA8tySnBwAwl164yNg+7rEBf7uca4 MD5 [ECDSA] 6e:d0:c7:68:47:ae:3f:e3:0b:ac:f9:26:b8:ed:fe:89 SHA256 [ECDSA] mhgWThLC/tXwBMp7KbRvY8/xuc8i9aKlKWk4Is3Y+3M MD5 [RSA] 05:85:dd:d2:f7:b8:b7:38:14:f1:92:7f:24:9d:05:4c SHA256 [RSA]…

  • Show Quota Discover

    The HOME and NOBACKUP file systems are controlled by quotas. To determine your resource usage and how it compares to your quota, run the showquota command. *Use “showquota -h” to display your Discover quota with units (GB, MB, etc.).The -f option will also show the fileset name, and the -g option will show group ownership.…

  • Discover Quality of Service Details

    Slurm’s Quality of Service (QoS) feature controls resource limits for every job in the Discover job queue. Available QoSs in the table below apply only to jobs submitted to the Slurm default partition. (It is important for maximum adaptability of your job scripts that you not specify any partition if you wish to use the…

  • Slurm Example Scripts

    Serial Job Script By default, Slurm executes your job from the current directory where you submit the job. You can change the work directory by “cd” to it in the script, or specify –workdir option for SBATCH. OPENMP Job Script Note: The option “–cpus-per-task=n” advises the Slurm controller that ensuring job steps will require “n”…

  • Srun Environment Variables

    The following information is largely replicated from SchedMD’s srun man page, and is the subset that is likely most relevant to most NCCS users. The srun command honors the following environment variables, when present (these override any inline directives within your batch script, but will be overridden by those also specified on the srun command…

  • Salloc Environment Variables

    The following information is largely replicated from SchedMD’s salloc man page, and is the subset that is likely most relevant to most NCCS users. The salloc command honors the following environment variables, when present (these override any inline directives within your batch script, but will be overridden by those also specified on the salloc command…