NCSA visualization is working with Noah Graham from Middlebury College in the Department of Physics to visualize results from computations based in particle physics and cosmology that simulates interacting fields in particle physics models with an expanding universe background. This work involves the investigation of oscillons (localized clumps of waves that oscillate but do not disperse) that are held together by the nonlinear interactions of the field theory model. The TeraGrid is being used to scale up to more realistic situations using lattices as large as possible. The larger the universe in the simulation, the more chance there is to form oscillons; also the finer the lattice, the more reliable the simulation. Due to the extremely large size of the data, researchers were unable to analyze relationships within the entire dataset using off-the-shelf visualization software. NCSA is using its custom renderer to volume visualize the entire dataset showing maximum density values as shown in the figure below representing a single frame from an animated sequence.


Noah Graham, Middlebury College


David Bock, Lead Visualization Programmer (XSEDE Extended Collaborative Support)


Custom visualization renderer

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