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Important update regarding our service charges collection policy, effective from July 1, 2023.

  1. Knowledge Base
  2. Research Computing
  3. High Performance Computing
financial year or at the beginning of service. Specifically, data storage and compute charges, including but not limited to DartFS, virtual servers, containers, and Discovery shares, will be

User commands

  1. Knowledge Base
  2. Research Computing
  3. Discovery Cluster
  4. Torque commands & Slurm equivalent
Option MOAB Torque command (mksub) Slurm command (sbatch) Job Submission mksub <file name> sbatch <file name> Job Deletion qdel / mjobctl -c scancel

Job directives

  1. Knowledge Base
  2. Research Computing
  3. Discovery Cluster
  4. Torque commands & Slurm equivalent
Option MOAB Torque command (mksub) Slurm command (sbatch) Job Name -N <name> --job-name=<name> Account -a <account> --account=<account

Recover files/folders from a DartFS snapshot

  1. Knowledge Base
  2. Research Computing
  3. DartFS
From a Mac or Linux The easiest way to recover these files is to: Log into Andes/Polaris/Discovery from a Terminal application Change directories to the hidden .snapshot folder – note

Environment variables

  1. Knowledge Base
  2. Research Computing
  3. Discovery Cluster
  4. Torque commands & Slurm equivalent
Option MOAB Torque command (mksub) Slurm command (sbatch) Job Name $PBS_JOBNAME $SLURM_JOB_NAME Job ID $PBS_JOBID $SLURM_JOB_ID Submit

Example: Interactive job (srun)

  1. Knowledge Base
  2. Research Computing
  3. Discovery Cluster
  4. SRUN (Interactive job submission)
An interactive job is launched on a compute node and provides you with a command line prompt. Interactive jobs are useful when debugging or interacting with an application. You will use thesruncommand

Example: Interactive GPU submission

  1. Knowledge Base
  2. Research Computing
  3. Discovery Cluster
  4. SRUN (Interactive job submission)
Occasionally you may need to run an interactive job on a GPU node to test the code that you are using on hardware which is GPU aware. You can query what GPU resources are available with sinfo -O gres

HPC Scratch Space

  1. Knowledge Base
  2. Research Computing
  3. High Performance Computing
volumes /dartfs-hpc/scratch network storage, available to entire Discovery cluster plus Polaris and Andes exact same performance as anything else mounted from DartFS (e.g. home and lab

Hardware Resources for Researchers

  1. Knowledge Base
  2. Software and Solutions
  3. Other Software
Details Researchers at Dartmouth have access to High Performance Computing (HPC) resources including the Discovery cluster and Linux computer servers with licensed mathematics and statistical

Changing Your AFS Password

  1. Knowledge Base
  2. Research Computing
  3. OpenAFS and RSTOR
DetailsYou can change your password from any system that has the Kerberos tools or AFS client installed. The easiest way for Linux users is to login to Polaris, Andes or Discovery and use the command

Research Computing Accounts

  1. Knowledge Base
  2. Research Computing
across all Research Computing Linux systems (Polaris, Andes, and the Discovery cluster).  Home directories can also be directly mounted from a personal computer as long as it is on the Dartmouth network

Screen

  1. Knowledge Base
  2. Research Computing
  3. High Performance Computing
are some basic commands to get you started with screen: Once on Discovery you can start a screen session by typing the command: screen This will take you into a screen session. From here, you

DartFS: Storage and Computing Information

  1. Knowledge Base
  2. Research Computing
  3. DartFS
data protection. Users can also leverage the (SMB) protocol to conveniently mount the storage, offering flexibility in accessing and managing stored data. Discovery: The Discovery cluster

SAS at Dartmouth

  1. Knowledge Base
  2. Research Computing
  3. Field Specific Support
  4. Statistics
) Server licenses available for a charge SAS is not available for MacOS SAS is installed on the Research Computing shared-access Linux servers and Discovery cluster, and available to all users on

Long running jobs (rcdetach)

  1. Knowledge Base
  2. Research Computing
  3. High Performance Computing
Keeping DartFS credentials alive When you login to a Research Computing system (e.g. Discovery, Polaris, Andes) you get a 10 hour credential to access your DartFS storage.  That is your home