Abstract
In this paper, the developments of visualization tools for large-scale geoscience simulations (e.g. Earth quakes, Tsunami and Typhoon simulations) using such as K-computer are presented. We first describe the development of the middleware to deal with the expensive rendering cost for the huge simulation data on a PC-cluster system. Our method combined with ray-tracing calculations provides a quality of photorealistic image to scientific visualization with a reasonable rendering time. We also implement a co-processing mode that can mimic an in-situ visualization process which may be the most effective method to reduce the time and storage space required for the visualization process. Then we discuss the new approach of the in-situ visualization method with petascale data. We propose to use bullet-time technique in the in-suite visualizations process, which generates many images/movies with arbitrary selected visualization parameters for a snapshot/sequential data. In order to deal with the visualization results brought by this method, we develop application software to play animation movies which can change the files on screen interactively in a real time. Finally we introduce the development of the application software “EXTRAWING” which visualize simulation result on Google Earth, as a powerful presentation tool of the simulation result.
