Adaptive Performance-Constrained In Situ Visualization of Atmospheric Simulations

Matthieu Dorier, Robert Sisneros, Leonardo Bautista Gomez, Tom Peterka, Leigh Orf, Lokman Rahmani, Gabriel Antoniu, Luc Bouge
2016 2016 IEEE International Conference on Cluster Computing (CLUSTER)  
While many parallel visualization tools now provide in situ visualization capabilities, the trend has been to feed such tools with large amounts of unprocessed output data and let them render everything at the highest possible resolution. This leads to an increased run time of simulations that still have to complete within a fixed-length job allocation. In this paper, we tackle the challenge of enabling in situ visualization under performance constraints. Our approach shuffles data across
more » ... ses according to its content and filters out part of it in order to feed a visualization pipeline with only a reorganized subset of the data produced by the simulation. Our framework leverages fast, generic evaluation procedures to score blocks of data, using information theory, statistics, and linear algebra. It monitors its own performance and adapts dynamically to achieve appropriate visual fidelity within predefined performance constraints. Experiments on the Blue Waters supercomputer with the CM1 simulation show that our approach enables a 5× speedup with respect to the initial visualization pipeline and is able to meet performance constraints.
doi:10.1109/cluster.2016.25 dblp:conf/cluster/DorierSBPORAB16 fatcat:u42djbqng5em3eil2zf7oylnp4