Ruby

Ruby SSH key fingerprints

These are the public key fingerprints for Ruby (in hexadecimal format):
ruby: ssh_host_key.pub = 01:21:16:c4:cd:43:d3:87:6d:fe:da:d1:ab:20:ba:4a
ruby: ssh_host_rsa_key.pub = eb:83:d9:ca:88:ba:e1:70:c9:a2:12:4b:61:ce:02:72
ruby: ssh_host_dsa_key.pub = ef:4c:f6:cd:83:88:d1:ad:13:50:f2:af:90:33:e9:70

GLOBUS OUTAGE 11AM-3PM DEC 9, 2017

An outage of Globus service is scheduled from 11 a.m. to 3 p.m. Saturday, December 9, 2017 for scheduled upgrades from Globus. Active file transfers will be suspended during this time and they will resume when the Globus service is restored. Users trying to access the service at globus.org will see a maintenance page until the service is restored.

DOWNTIME 7AM-7PM 12/12/2017

** DOWNTIME EXTENDED TO 7 PM ** A downtime for all HPC systems is scheduled from 7 a.m. to 7 p.m. Tuesday, December 12, 2017. The downtime will affect the Oakley, Ruby and Owens Clusters, web portals, and HPC file servers. Login services, including my.osc.edu, and access to storage will not be available during this time. To stay up to date on system notices, follow @HPCNotices on Twitter (https://twitter.com/HPCnotices). As always, you can contact us at OSC Help.

ROLLING REBOOTS OF OAKLEY AND RUBY STARTING OCT 9

We will have rolling reboots of Oakley and Ruby clusters starting from 8:30AM on Monday October 9, 2017. A rolling reboot of Owens will be scheduled for a later date. These rolling reboots will address recent security vulnerabilities patched by RedHat. These rolling reboots won't affect any running jobs, but users may experience longer queue wait time than usual on the cluster. We apologize for any inconvenience this may cause you. Please contact oschelp@osc.edu if you have any questions.

LAPACK

LAPACK (Linear Algebra PACKage) provides routines for solving systems of simultaneous linear equations, least-squares solutions of linear systems of equations, eigenvalue problems, and singular value problems.

Availability and Restrictions

A highly optimized implementation of LAPACK is available on all OSC clusters as part of the Intel Math Kernel Library (MKL). We recommend that you use MKL rather than building LAPACK for yourself. MKL is available to all OSC users.

BLAS

The BLAS (Basic Linear Algebra Subprograms) are routines that provide standard building blocks for performing basic vector and matrix operations.

Availability and Restrictions

A highly optimized implementation of the BLAS is available on all OSC clusters as part of the Intel Math Kernel Library (MKL). We recommend that you use MKL rather than building the BLAS for yourself. MKL is available to all OSC users.

Rolling Reboot of Owens Nodes will begin September 11 at 9am

In order to upgrade the kernel, we will conduct a rolling reboot of all Owens nodes. This will begin at 9 a.m. on September 11 and continue until all nodes have been rebooted. The login nodes will be rebooted first.This rolling reboot won't affect any running jobs, but users may experience longer queue wait times than usual on the Owens cluster. Please contact oschelp@osc.edu if you have any questions.

HOWTO: submit homework to repository at OSC

This page outlines a way a professor can set up a file submission system at OSC for his/her classroom project.

Usage for Professor

After connect to OSC system, professor runs submit_prepare as

$ /fs/scratch/xwang/bin/submit_prepare

Follow the instructions. It will create designated directory where students submit their assignments, as well as generate submit for students used to submit homework to OSC, both of which are located in the directory specified by the professor.

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