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 resolutions, avoiding the transfer of raw data to disks.
This full-day course introduces the in-situ visualization paradigm along with Ascent and ParaView Catalyst, two open-source in-situ processing libraries. Both libraries leverage a common interface, Conduit, which provides an intuitive model for describing hierarchical scientific data in C++, C, Fortran, and Python. Attendees will gain hands-on experience learning how to describe simulation data with Conduit and how to use Ascent and Catalyst to transform data, render images, and export results.
Deadline for registration: Friday, December 5, 2025.
More details and registration form can be found in the event page >
We look forward to welcoming you at CSCS!