SDSC Webinars 

Next Scheduled Webinar:

Date: Tuesday, January 8, 2019, 11am-1pm PST

"Introduction to Running Jobs on Comet"

Presenter: Mary Thomas

This webinar covers the basics of accessing the SDSC Comet supercomputer, managing the user environment,  compiling and running jobs on Comet, where to run them, and how to run batch jobs. It is assumed that you have mastered the basics skills of logging onto Comet and running basic Unix commands.  The webinar will include access to training material.

This meeting will use the Zoom conferencing system. You should receive an email with connection details when you register. If you do not have the connection details, please send an email to

Slides and recording will be made available after the webinar. 

Register for this webinar. 


Past Webinars

"Understanding Performance and Obtaining Hardware Information"

Date: 12/11/2018

Presenter: Bob Sinkovits

In this webinar we start by describing how to obtain hardware and system information such as CPU specifications, memory quantity, cache configuration, mounted file systems and their usage, peripheral storage devices and GPU properties. This information is useful for anyone who is interested in how hardware specs influence performance or who needs to report benchmarking data. We then cover the use of top for monitoring systems usage and gprof for basic code profiling. We conclude with a description of the memory hierarchy (registers, cache, memory, external storage) and show how an understanding of cache can be used to write more efficient code.

Download slides for this webinar. 

View a recording of this webinar. 


Date:  10/09/2018   

"Introduction to Data Visualization on XSEDE Systems"

Presenter:  Jeff Sale



This 2-hour* webinar provides an introduction to data visualization for users of XSEDE systems and those who want to know more about general principles of data visualization. Jeff Sale provides an introduction to data visualization principles and practices. introduces participants to XSEDE visualization expertise, and offers some hands-on demonstrations running visualization jobs on SDSC’s Comet supercomputer using a VisIt client as well as a demonstration of using the XSEDE Visualization Portal hosted at the Texas Advanced Computing Center. Topics covered include:

  • Introduction: what is visualization?
  • Why do we visualize data?
  • Overview of the data visualization workflow
  • Fundamentals of data visualization principles
  • Hands-On Demonstration: Using VisIt to run jobs on SDSC’s Comet\
  • Brief demonstration of the XSEDE TACC Visualization Portal
*Authentication issues with the TACC Visualization Portal cut this webinar short. Another webinar is planned for early 2019. 

Date:  06/14/2018 

"Running Singularity Containers on SDSC's Comet Supercomputer"

Presenter: Marty Kandes



Running Singularity Containers on SDSC’s Comet Supercomputer“Singularity enables users to have full control of their environment. Singularity containers can be used to package entire scientific workflows, software and libraries, and even data. This means that you don’t have to ask your cluster admin to install anything for you - you can put it in a Singularity container and run.” [*from the Singularity web site at]

This 2-hour webinar provides an introduction to running Singularity containers on Comet for users currently using Comet and those who want to know more about containerization on Comet. Marty Kandes provides an in-depth review of the important issues pertaining to running Singularity in the Comet high-performance environment including live demonstrations.


Date: 04/06/2018  


"A Quick Introduction to Machine Learning with Comet"

Presenter:  Paul Rodriguez, Ph.D.



Machine Learning covers a variety of statistical techniques that are useful for data analysis and central to the recent developments in deep learning and AI.

This 2-hour webinar will try to organize and introduce the plethora of terms and concepts that comprise machine learning, describe how machine learning can be used on Comet HPC resources using R, and demonstrate with a quick tutorial how a simple deep learning model works using Python.

Below is a brief agenda:

- Overview of Concepts and Terms for Machine Learning
- The main activities of applying machine learning models.
- Scaling models
- Deep learning basics

Date: 02/15/2018 

"Introduction to SDSC's Comet Supercomputer"

Presenter:  Mahidhar Tatineni



This webinar provides a brief introduction and some hands-on instruction for users who are relatively new to SDSC’s Comet supercomputer as well as for those who need a refresher. Join SDSC’s User Support Group Lead, Dr. Mahidhar Tatineni, for an introduction to Comet, including an overview of the underlying architecture, available software, running jobs, file management, and more.