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
Intelligent Light delivered a keynote presentation at the VINAS User Conference in Shinagawa, Japan.
How the Automotive Industry is Pushing the Limits of CFD Post-Processing with FieldView
Yves-Marie, Lefebvre, FieldView Product Chief
CFD Engineers working in the automotive industry are being asked to simulate increasingly complex systems and phenomena, while having to deal with strong time and cost constraints. This is probably the reason why an increasing number of them are switching to FieldView, after trying other commercial or open source post-processors. In this presentation, we’ll review three automotive industrial examples, covering areas as different as engine thermal validation, external aero and internal combustion, which used the same technology (FieldView’s automation, high performance graphics and data extracts capabilities) but applied in different ways, thanks to the help of Intelligent Light’s Services Team. What these three companies had in common was the need to do more with the same hardware, whether that’s getting their post-processing results faster or being able to interact with large transient results in a way it had never been done before.
Download the Presentation
Interactive Exploration of High Fidelity ICE Simulations
Learn how you can create and analyze ICE simulations with hundreds of time steps and hundreds of thousands of simulated particles. Interactively explore your high fidelity data to improve understanding of your results.
Attend this webinar by Intelligent Light and Convergent Science to see how you can escape current limitations and achieve more from your CFD.
An innovative transient post-processing approach for ICE simulations
In the quest to improve simulation accuracy and fueled by the rise of HPC, simulations are being performed on ever finer meshes and with larger number of particles. In the case of internal combustion engine CFD which requires very long transient runs in order to reach convergence, this has become problematic due to the huge amount of data and the time it takes to review it.
This presentation will describe, through an ICE case study simulated with CONVERGE, an innovative post-processing approach that allows interactive analysis of several hundreds of time steps, containing hundreds of thousands of simulated particles.
Combined with more traditional methods (transient animations, time history plots…), this interactive investigation technique will provide unprecedented insight to complex transient flows.
Tuesday, October 28, 2PM ET
Intelligent Light was an invited participant in the EnterpriseHPC event in California last week, hosted by Tabor Communications. This exclusive event brought together HPC users from across industries to identify common challenges, seek solutions. Manufacturing industry leaders from , Cummins, Gulfstream Aerospace, Mercury Marine, Rolls Royce, and Simpson Strong-Tie joined leaders from finance, life-sciences, technology, health care, retail, and more.
It was clear from the discussions that making the most of valuable people, developing HPC skills, providing new on-ramps for HPC use, and successful collaborations with expert vendor partners were on the minds of many.
HPCwire coverage of the event includes an article by Nicole Hemsoth about the panel discussion aimed at challenges in manufacturing industries. The panel was led by Merle Giles (NCSA) and Intelligent Light’s Roger Rintala participated.
“This event created and nurtured a discussion that elevated above the day to day topics germane to specific industries or application areas. It gave these leaders the opportunity to learn from each other and find new ways to identify and attack workflow bottlenecks and challenges.”
- Roger R. Rintala, Intelligent Light
HPC is a powerful enabler for leading organizations and partners like Intelligent Light can bring the expertise to help HPC users exploit the technology effectively while aligning internal resources with the core strengths of their organizations.
What’s Still Missing for HPC Users in Manufacturing
Intelligent Light was invited to participate in HPC panel discussions at the HPC User Forum in Seattle this month.
The HPC User Forum included a focused section on HPC Cloud Computing and a Disruptive Technologies Panel moderated by IDC’s Earl Joseph. Intelligent Light General Manager Steve Legensky presented “Revolutionizing Innovation with On Demand HPC” and was a Disruptive Technologies Panel member.
“Intelligent Light is proud to participate in our fourth HPC User Forum event. I am told that our opinions and customer experiences are valued by the HPC community since we are actively delivering solutions to today’s HPC challenges in CAE. Our HPC ready software and expert services offerings have been driven and refined through direct involvement with customers working at the leading edge of HPC driven engineering. People become vastly more productive as they harness the power of HPC.”
- Steve M. Legensky, General Manager & Founder, Intelligent Light
Legensky presented in the Cloud Computing session and used two examples of how customers are leveraging Intelligent light technologies to break through some of the barriers of using cloud computing for tera-scale unsteady CFD. In a joint demonstration project for Daimler-Benz, Intelligent Light and CD-adapco teamed up to create a custom FieldView workflow spanning almost half the globe to analyze a combined CFD and solid thermal model for transient vehicle thermal management, reducing weeks of work to hours.
A second success story involved supporting the DoD CREATE team with in-situ post-processing via DOE’s VisIt and libsim. Intelligent Light is commercializing VisIt /libsim under a DOE grant and provides the server-side software via a BSD license: no license fees permit limitless scaling. The CREATE/AV CFD code Kestel can now compute large unsteady cases remotely and save visualization components from VisIt into FieldView extract databases (XDBs). These files are hundred’s of times smaller than the CFD files and are easily brought to the Navy’s PAX River facility for interaction and movie making. What used to take days is now completed in one hour.
“The HPC community is deeply concerned about software licensing costs for scaling to many cores and into the cloud. Our solution, which provides server-side software with no license fee (charging only for the client side software) was well received by both the end user and hardware vendor communities.”
InsideHPC hosts the archive of presentations and discussions in their special HPC User Forum Video Gallery including IDC’s HPC Market Update and IDC’s Top Growth Areas for 2014 and Beyond by Earl Joseph.