Views from Intelligent Light
Roger Rintala

VisIt Presentations and Demonstrations at SC14

SC14-LogosmIntelligent Light looks forward to SC14, the premier gathering of HPC users, providers, and developers.  We return to the conference in continued support of the VisIt community.  VisIt is massively scalable, open source visualization software developed by the Department of Energy for which Intelligent Light is working to harden and extend for use in production engineering environments.

 

visitlogoVisIt is already being used to help harness the power of leadership class HPC and some of our leading customers have embraced it as a powerful tool for in-situ post-processing, an essential emerging capability for high throughput CFD.  VisIt 2.8 brings many additions and fixes developed by Intelligent Light and the ability to export XDB files is the first step in our path for bringing VisIt into the  FieldView world, where thousands of CFD users do important engineering and research work every day.

 

During SC14 presentations in our booth #3617 include:

Intelligent Light Moves Forward with VisIt

Steve Legensky, Intelligent Light – Tuesday, November 18 2:00 pm 

Developing VisIt for In-Situ on Leadership Class Systems

Brad Whitlock, Intelligent Light - Wednesday, November 19 1:00 pm

Toward Exascale: A year of VisIt Development Expands the Envelope with VisIt 2.8

Brad Whitlock, Intelligent Light – Wednesday, November 19 3:00 pm

 

In addition, we are supporting the SC14 Tutorial, Effective HPC Visualization and Data Analysis using VisIt, on Monday, November 17 1:30-5:00 pm.

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Roger Rintala

SC14 Tutorial: Effective HPC Visualization and Data Analysis using VisIt

Effective HPC Visualization and Data Analysis using VisIt

Visualization and data analysis are an essential component of the scientific discovery process. Scientists and businesses running HPC simulations leverage visualization and analysis tools for data exploration, quantitative analysis, visual debugging, and communication of results. This half-day tutorial will provide attendees with a practical introduction to mesh based HPC visualization and analysis using VisIt, an open source parallel scientific visualization and data analysis platform. We will provide a foundation in basic HPC visualization practices and couple this with hands-on experience creating visualizations and analyzing data. This tutorial includes:

 

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Roger Rintala

SC14 – Invited IL Speakers Reflect the Changing HPC Landscape

Intelligent Light customers are often leaders in their industries.  We are proud of their accomplishments and our role in supporting their success.  In these two invited talks we will share brief stories of organizations who have made HPC a valuable resource for their businesses.

 

HPC Impact Showcase at SC14

Intelligent Light has been invited to participate in the 2nd Annual HPC Impact Showcase at SC14. The HPC Impact Showcase brings real world applications of HPC that make a difference in shaping our world. Intelligent Light General Manager and Founder, Steve Legensky, will share cases of leading organizations whose CFD business success is enabled by on-demand HPC. Presentations take place in the HPC Impact Showcase Theater on the exhibit floor.

 

Revolutionizing Innovation with On Demand HPC

Steve Legensky, Intelligent Light

Tuesday, November 18th, 11:00 AM, HPC Impact Showcase Theater

 

HPC in the Cloud: The Overcast has Cleared

Panel discussion moderated by Rich Bruckner, insideHPC and hosted by Dell

Wednesday, Nov 19, 1:30 PM, Dell Beignet Theater, Dell booth #1730

Panelists include:

Muhammad Atif, Ph.D., National Computational Infrastructure (NCI), The Australian National University (ANU)

Larry Smarr, Ph.D., UC San Diego

Roger Rintala, Intelligent Light

Boyd Wilson, Clemson University & Omnibond

 

 

Roger Rintala

Now! Generate FieldView XDB files directly from VisIt 2.8

VisIt users can now generate FieldView XDB files directly from VisIt scientific visualization software.  VisIt is highly scalable, open source visualization software developed by the US Department of Energy.  Intelligent Light is working under a DOE SBIR to provide a robust, hardened version of VisIt for engineering applications.  VisIt includes libsim which is a powerful tool that can be used in support of in-situ post-processing and visualization.  XDB files are generated rather than volume files for interrogation using FieldView.  XDBs help accelerate the CFD workflow also allowing researchers and engineers to ask more sophisticated questions by running more cases at higher fidelity.  These improved studies can increase accuracy and confidence and lead to new insights.

 

Researchers and engineers working on leadership class HPC systems use VisIt to work with the large datasets that result.  VisIt is built for these ultra-scalable systems, is free of licensing cost at any processor count, and is well suited for work where post-processing takes place as the simulations are run.  Writing out FieldView XDB files from Visit in an interactive session or from libsim in-situ provides persistent extract files which can then be used with FieldView software and archived in compact form for later use.  Leading users are already using the XDB export capability with in-situ post-processing.   FieldView XDB files are a fraction of the size of the original volume data yet retain full numerical fidelity.  When used with FieldView they enable both the interactive exploration of unsteady simulation data and the ready transfer of data.  FieldView is built for engineering productivity delivering powerful and accessible tools for CFD and supporting investments in high capacity, interactive and automated workflows.  This combination bridges the gap between expert users in research domains and engineering experts wishing to use HPC and in-situ post-processing in production environments.

 

Using XDBs to accelerate the VisIt workflow also allows researchers and engineers to ask more sophisticated questions by running more cases at higher fidelity.  These improved studies can increase accuracy and confidence and lead to new insights.

 

This is a significant milestone in the development and integration of VisIt with the engineering tools in FieldView that users depend on.  Intelligent Light’s development was performed largely by Brad Whitlock, a member of our Applied Research Group.  Brad is a long-time VisIt developer, formerly working for the Lawrence Livermore National Laboratory (LLNL).  Several advanced FieldView users are already using XDBs generated in VisIt.  This functionality is delivered in the VisIt 2.8 release for all users and will be supported through normal VisIt support channels.  FieldView users will also be supported through their existing Intelligent Light support programs.

 

Learn more about how FieldView XDBs are being used as part of a data management and productivity solution:

 

Massive CFD Data Handled Quickly Without Compromise – Maximize Your CFD Investment

                This real world example uses analysis from the AIAA High Lift Drag Prediction Workshop simulations to show how XDB files enable wholly new levels of productivity for CFD.  The work was performed on a remotely located Cray XE6 system and reviewed locally.  The improvements in overall throughput can be even higher with VisIt running on the HPC systems and delivering the XDB files directly, without writing out large intermediate files.  The work discussed in the paper is was recognized by IDC with their HPC Innovation Excellence Award.

 

                Get the Whitepaper or View the Webinar

 

VisIt information and downloads at the Visit Software Home Page