New ARC flagship CPU cluster Tinkercliffs featured in VT news

Tinkercliffs, ARC's most recent cluster, is online and is making news owing to its scale (more than 300 nodes and almost 42,000 CPU cores) and some of the challenges the acquisition and commisioning faced in the COVID-19 era.

See the news article here:

ARC also has a webpage for introducing Tinkercliffs to the VT community and will continue to add more resources in the coming months:

As of early October, access to the cluster is provided though a consultation with an ARC computational scientist. You may reach out to one of the team directly or submit a ticket requesting a consultation via

PhD student Paper @ IEEE VR 2020 Journal Track: Best Paper Finalist!

ARC's Visionarium Lab provides world-class support for Viriginia Tech researchers using Virtual and Mixed Reality Visualization. Here is a highlight from the Building and Construction Department taking advantage of the unique HyperCube instrument:

S. Hasanzadeh, N. F. Polys and J. M. De La Garza, "Presence, Mixed Reality, and Risk-Taking Behavior: A Study in Safety Interventions," in IEEE Transactions on Visualization and Computer Graphics.
doi: 10.1109/TVCG.2020.2973055

HyperCube Experimental Conditions

Dr. Hasanzadeh will be joining Purdue's Civil Engineering Faculty this Fall! Congratulations!!

Abstract: Immersive environments have been successfully applied to a broad range of safety training in high-risk domains. However, very little research has used these systems to evaluate the risk-taking behavior of construction workers. In this study, we investigated the feasibility and usefulness of providing passive haptics in a mixed-reality environment to capture the risk-taking behavior of workers, identify at-risk workers, and propose injury-prevention interventions to counteract excessive risk-taking and risk-compensatory behavior. Within a mixed-reality environment in a CAVE-like display system, our subjects installed shingles on a (physical) sloped roof of a (virtual) two-story residential building on a morning in a suburban area. Through this controlled, withinsubject experimental design, we exposed each subject to three experimental conditions by manipulating the level of safety intervention. Workers' subjective reports, physiological signals, psychophysical responses, and reactionary behaviors were then considered as promising measures of Presence. The results showed that our mixed-reality environment was a suitable platform for triggering behavioral changes under different experimental conditions and for evaluating the risk perception and risk-taking behavior of workers in a risk-free setting. These results demonstrated the value of immersive technology to investigate natural human factors.

keywords: {Safety;Haptic interfaces;Training;Virtual environments;Physiology;Human factors;Mixed-reality;passive haptics;presence;human factors;risk-taking behavior;X3D;construction safety},

HyperCube views

3D Enterprise Workshop in Arlington, VA

Virginia Tech and the Web3D Consortium hosted a one-day workshop to provide presentations to Naval enterprise leaders on the use of collaborative Web-based #X3D visualization techniques by Government, Academia, and Industry practitioners. Virginia Tech's Advanced Research Computing (ARC) and Center for Geospatial Information Technology (CGIT) host with proven, innovative methods for data fusion and interactive 3D visualization.

Friday, 2019, December 6 (All day): Virginia Tech Executive Briefing Center, 900 N Glebe Rd, Arlington, VA 22203. Falls Church room.

The workshop fostered networking and showcased current and emerging capabilities for enterprise-scale, networked geo-enabled 3D communications. Increasing shared understanding and technical coordination agility can be feasibly adapted to improve digital connectedness, accelerate consensus/decision making processes across systems engineering, advance planning conceptualization, and collaborative virtual rehearsal for ashore & afloat logistics activities. Building shared priorities adds value for everyone. Workshop participants discussed their reactions "around the room" together, sharing ideas about opportunities and potential synergies that can further the art of the possible to realize shared innovation.

The workshop showcased the benefits and strengths of using the Web3D Consortium’s Extensible 3D (X3D) open 3D standards for the WWW and included:

  • Demonstrations using 3D scanners, 3D software & 3D data storage, and processing proved compelling use cases for how the X3D standard can enable new realities of collaborative 3D visualization for you 
  • Overview of Web3D Standards and their value proposition in the ecology of 3D data representations and file formats 
  • Appreciation of the long-game of technology and information systems investments: born out with this open International Standard (ISO-IEC) and WWW community, including dozens of tools, pipelines, and engines.

Presentations from the workshop are available at the link below.

The Twitter thread includes highlight points, photos, screenshots and links for everyone.