Ascend

Rolling reboot of all clusters starting from June 14 2023

Beginning 9am on Wednesday, June 14, we will be having rolling reboots of all clusters (Owens, Pitzer, and Ascend). This includes both login and compute nodes and will be done to perform OS updates. Login nodes will be rebooted at 9am on June 14, which will leave them unavailable for approximately 5-10 minutes. The rolling reboots won't affect any running batch jobs, but users may experience longer than usual wait times on all clusters.

MRIcroGL

MRIcroGL is medical image viewer that allows you to load overlays (e.g. statistical maps), draw regions of interest (e.g. create lesion maps).

Availability and Restrictions

Versions

MRIcroGL is available on Pitzer cluster. These are the versions currently available:

dcm2nii

dcm2niix is designed to convert neuroimaging data from the DICOM format to the NIfTI format. The DICOM format is the standard image format generated by modern medical imaging devices. However, DICOM is very complicated and has been interpreted differently by different vendors. The NIfTI format is popular with scientists, it is very simple and explicit. However, this simplicity also imposes limitations (e.g. it demands equidistant slices).

Security updates to MyOSC

Security updates will be applied to https://my.osc.edu on Tuesday, March 28 2023. There should be no interruption, however some users may be mistakenly blocked. Should this occur, please contact OSC support using the link shown and provide the Support ID shown. Contact oschelp@osc.edu if there are any questions/concerns.

System Downtime March 14, 2023

A downtime for OSC HPC systems is scheduled from 7 a.m. to 9 p.m., Tuesday, March 14, 2023. The downtime will affect the Pitzer, Owens and Ascend Clusters, web portals, and HPC file servers. MyOSC (https://my.osc.edu) and state-wide licenses will be available during the downtime. In preparation for the downtime, the batch scheduler will not start jobs that cannot be completed before 7 a.m., March 14, 2023.

Technical Specifications

The following are technical specifications for Ascend.  

Number of Nodes

24 nodes

Number of CPU Sockets

48 (2 sockets/node)

Number of CPU Cores

2,304 (96 cores/node)

Cores Per Node

96 cores/node (88 usable cores/node)

Internal Storage

12.8 TB NVMe internal storage

OSC enables Globus High Assurance storage endpoint

A new High Assurance Globus endpoint for OSC will be deployed to manage protected data on February 2, 2023. This will affect current projects at OSC which use Globus to manage their protected data. These projects will need to use the new High Assurance Globus endpoint to access their data. The name of the new endpoints are OSC /fs/ess High Assurance for project storage (/fs/ess) and OSC /fs/scratch High Assurance for scratch storage (/fs/scratch).

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