June 06, 2023 - by CSCS

On Tuesday, May 16, 2023 the course entitled "In Situ Analysis and Visualization with ParaView Catalyst and Ascent" took place in-person at CSCS in Lugano, Switzerland.

Scientific visualization and analysis are key ingredients in HPC simulation workflows. For decades, the dominant paradigm has been post-hoc visualization; simulation codes iterate and save files to disk, giving the domain scientists the opportunity to read the data back at a later time for analysis. In recent years though, this paradigm has been stressed by an ever-diverging rate of growth between I/O and compute speeds. In-situ processing helps mitigate these I/O bottlenecks, enabling simulation and visualization calculations to run in-memory, at higher spatial and temporal resolution, avoiding the transfer of raw data to disks. 

In this course, we cover how to describe simulation data with Conduit and how Ascent or Catalyst can transform data, render images, and export results, discussing the pros and cons of both implementations.

Here you can watch the videos of the course >