Scalable Ray-Casted Volume Rendering

Event Sponsor: 
Mathematics and Computer Science Division Seminar
Start Date: 
Sep 9 2016 - 10:30am
Building 240/Room 4301
Argonne National Laboratory
Roba Binyahib
Speaker(s) Title: 
University of Oregon
Tom Peterka

Computational power has been increasing tremendously in recent years, resulting in an increase in data size and complexity. Volume rendering is an important method for visualizing such data, as it provides insight over the entire data set. However, traditional volume rendering techniques are not sufficient to handle such data because they are too large to fit in the memory of a single computer. Using a distributed system to visualize massive data improves the performance. That said, while parallelization has its benefits, it also creates challenges. There are two main approaches for parallel volume rendering: image order and object order. While these methods have advantages, they fail to achieve load balance in some cases. With our work, we present a hybrid parallel volume rendering algorithm that guarantees good performance and maintains load balance, since at each step of our hybrid approach the execution time is bounded. To further improve the performance at large scale we use DIY for the communication step.

Roba Binyahib is a Ph.D. student in Computer Science at the University of Oregon. She is a member of the CDUX research group, supervised by Hank Childs. Her research interests lie in the intersection of high performance computing and scientific visualization.