https://www.researchcomputing.sites.grinnell.edu/ 2026-04-27T16:23:02+00:00 https://www.researchcomputing.sites.grinnell.edu/ https://www.researchcomputing.sites.grinnell.edu/lib/exe/fetch.php?media=logo.png text/html 2021-11-10T16:25:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.researchcomputing.sites.grinnell.edu/doku.php?id=accountadmin&rev=1636561529&do=diff Administration of Accounts Accounts are created ad hoc for users who request them. Students require faculty approval and the student is added to a group corresponding to the faculty member. The script to add a user is located at /root/administration/addhpcuser.sh text/html 2025-05-08T19:43:08+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.researchcomputing.sites.grinnell.edu/doku.php?id=quickstart&rev=1746733388&do=diff Cluster Introduction Faculty and their research students can request access to the cluster by contacting Mike Conner [connerms], Linux System Administrator, Information Technology Services. Access is granted through the Login, or Master node. The Master node can be used to manage files, prepare jobs, and submit jobs to the scheduler. The scheduler is software that matches all the incoming jobs with their various requirements, matches those jobs to compute resources, and determines when the jobs… text/html 2023-09-11T20:48:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.researchcomputing.sites.grinnell.edu/doku.php?id=resources&rev=1694465311&do=diff Additional Resources Grinnell HPC Metrics (only available on-campus) Grinnell HPC OnDemand (only available on-campus) text/html 2021-11-10T16:50:50+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.researchcomputing.sites.grinnell.edu/doku.php?id=services&rev=1636563050&do=diff Master node Moab scheduler: systemctl status moab Apache (WebMO, Metrics): systemctl status httpd TORQUE pbs_mom daemon (for nodes to communicate with torque resource allocation): systemctl status pbs_mom Compute nodes TORQUE pbs_mom daemon systemctl status pbs_mom text/html 2025-05-27T19:30:04+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.researchcomputing.sites.grinnell.edu/doku.php?id=start&rev=1748374204&do=diff Overview Grinnell College faculty and student researchers have access to a High Performance Compute cluster that is supported by Information Technology Services. The cluster has been funded by the Innovation Fund, the Chemistry Department, research funding from Charlotte Christiansen in Physics, and Information Technology Services. Faculty seeking to acquire compute resources with research funding are encouraged to consider applying the funding to build additional resources into the cluster so … text/html 2025-06-12T13:18:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.researchcomputing.sites.grinnell.edu/doku.php?id=technicalspecifications&rev=1749734320&do=diff Master Node * 2 Intel Xeon E5-2640v4 (2.4GHz 10core) * 64GB RAM * 2 2TB 7200RPM, RAID1 * Gigabit Ethernet * Infiniband Storage Node * 2 Intel Xeon E5-2650v4 (2.2GHz 12core) * 64GB RAM * 2 480GB SSDs (sdb and sdc, RAID, / and /boot) text/html 2022-06-22T14:48:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.researchcomputing.sites.grinnell.edu/doku.php?id=troubleshooting&rev=1655909310&do=diff Troubleshooting Jobs Job stuck in the queue and won't run: Show the queue to get JOBID and general information about what is running: $ showq Active jobs are jobs that are currently running. Eligible jobs are jobs that are waiting in line to run as soon as resources are available. Blocked jobs are jobs that cannot run for some reason; usually it is because the job has requested more resources than are allowed. text/html 2025-05-30T15:45:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.researchcomputing.sites.grinnell.edu/doku.php?id=tutorials_connect&rev=1748619925&do=diff Connect to the HPC system: There are two methods of connecting to the HPC system. If you are using computer that is connected to the Grinnell College network, you can SSH to the cluster. Clients that are off-campus can connect to the cluster in a web browser by visiting text/html 2025-05-27T19:32:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.researchcomputing.sites.grinnell.edu/doku.php?id=tutorials_scheduler&rev=1748374372&do=diff HPC Jobs In the context of HPC, a job is a task (a program or script) that you ask the computer to run. Jobs are managed by a scheduler that accepts submissions from all cluster users and works out when and on which resources the job will run. When you connect to the cluster, you connect to a login node or text/html 2025-05-27T15:28:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.researchcomputing.sites.grinnell.edu/doku.php?id=tutorials&rev=1748359680&do=diff Orientation If you've not had much exposure to running computational workloads on an HPC cluster, this video is a brief but very helpful introduction to an HPC cluster. It is recommended that you watch this video before proceeding with the tutorials linked below.