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Archive for December, 2019

OIT Network Maintenance 12/18/2019-12/19/2019

Posted by on Monday, 16 December, 2019

To Our Valued PACE Research Community,

We are writing to inform our research community of upcoming maintenance, as follows: 

The Office of Information Technology (OIT) will be performing a series of upgrades to the networking infrastructure to improve the performance and reliability of networking operations. Some of these upcoming enhancements may impact PACE users’ ability to connect and interact with computational and storage resources. We do not expect that this network maintenance to have any impact on currently running jobs.   

12/18/2019 20:00-23:59 (Router Code Upgrade) An upgrade to the software on some routers is scheduled and will include an approximate 30-minute disruption to telecommunication services.  

12/18/2019 20:00 – 12/19/2019 02:00 (Date Center Router Code Upgrade & Routing Engine Upgrade)  An upgrade to the software on multiple devices will impact network connectivity across the main campus of the Georgia Institute of Technology. This disruption will include the CODA Building. 

OIT Technical Teams will be actively monitoring the progress of upgrades during the maintenance windows described above. These teams will be providing ongoing communications to student, faculty, and staff members of the Institute. A central location for progress communications will be available at http://status.gatech.edu 

Issues during the upgrade may be reported to the OIT Network Operations Center at (404)894-4669. 

We do not expect any impact on running jobs and no changes to the PACE computational and storage resources are part of this OIT Network maintenance. 

Thank you for your time and diligence,

PACE Outreach and Faculty Interaction Team

New PACE utilities: pace-jupyter-notebook and pace-vnc-job now available!

Posted by on Friday, 6 December, 2019

Good Afternoon Researchers!

We are pleased to announce two new tools to improve interactive job experiences on the PACE clusters: pace-jupyter-notebook and pace-vnc-job!

Jupyter Notebooks are invaluable interactive programming tools that consolidate source code, visualizations, and formatted documentation into a single interface. These notebooks run in a web browser, and Jupyter provides support for many languages by allowing user to switch between desired programing kernels, such as Python, MATLAB, R, Julia, C, Fortran, just to name a few. In addition to providing an interactive environment for development and debugging code, Jupyter Notebooks are an ideal tool for teaching and demonstrating code and results, which PACE has utilized for its recent workshops.

The new utility pace-jupyter-notebook provides an easy to run command for launching Jupyter notebook from the following login nodes/clusters (login-s[X], login-d[x], login7-d[x], testflight-login, zohar, gryphon, login-hive[X], pace-ice, coc-ice…) that will enable Jupyter on your workstation/laptop browser of your choice.  To launch Jupyter, simply login to PACE, and run the command pace-jupyter-notebook -q <QUEUENAME>, where <QUEUENAME> should be replaced with the queue in which you wish to run your job. Once the job starts, follow the three-step prompt to connect to your Jupyter Notebook! Full documentation on the use of pace-jupyter-notebook, including available options to change such as job walltime, processors, memory, and etc., can be found at http://docs.pace.gatech.edu/interactiveJobs/jupyterInt/.  Please note that on busy queues, you may experience longer wait times to launch the notebook.

In addition, we are providing a similar utility for running software with graphical user interfaces (GUIs), such as MATLAB, Paraview, ANSYS, and many more) on PACE clusters. VNC sessions offer a more robust experience when compared to traditional X11 forwarding. With a local VNC Viewer client, you can connect to the remote desktop on a compute node and interact with the software as if running on your local machine.  Similar to the Jupyter Notebook utility, the new utility pace-vnc-job  provides an easy to run command for launching VNC session on a compute node and connecting your client to the session.  To launch a VNC session, login to PACE, and run the command pace-vnc-job -q <QUEUENAME>, where <QUEUENAME> should be replaced with the queue in which you wish to run your job. Once the job starts, follow the three-step prompt to connect your VNC Viewer to the remote session, start up the software you wish to run. Full documentation on the use of pace-vnc-job, including available options to change such as job walltime, processors, memory, and etc.,, can be found at http://docs.pace.gatech.edu/interactiveJobs/setupVNC_Session/.  Again, please note that on busy queues, you may experience longer wait times to launch a VNC session.

Happy Interactive computing!

Best,
The PACE Team