SC25 BOF on
HPC Graph Toolkits and the GraphBLAS Forum

Wednesday, November 19, 2025
5.15 PM - 6.45 PM 
America’s Center, Saint Louis, MO
Room 274

Theme

Graph analytics is critical to scientific computing, artificial intelligence (AI), and national-scale data analysis. This BoF gathers the community developing high-performance systems for graph processing to discuss current capabilities, emerging challenges, and integration with graph databases, AI workflows, and scientific applications. We will explore both combinatorial and algebraic approaches, including updates from the GraphBLAS community. A key focus is identifying what capabilities—such as open, scalable graph toolchains and support for irregular workloads—require federal investment beyond what commercial vendors provide. The session will guide future research, software development, and funding priorities through expert discussion and broad community input.

Organizers:  Antonino Tumeo (PNNL), José Moreira (IBM),  Tim Mattson (Merly.ai), John Feo (Retired), Marco MInutoli (AMD)

Program

Time Event
5:15Welcome
Antonino Tumeo (PNNL), José Moreira (IBM), Tim Mattson (Merly.ai)
5:15 - 5:45Applications and HPC Graph Toolkits

Scalable Graph Algorithms: A Case for Memory Efficiency
S.M. Ferdous (PNNL)

Fantastic Graph Dynamics and Where to Find Them: How to Tame Them and When to Tame Them
Arindam Khanda (Missouri University of Science and Technology)
5:45 - 6:00GraphBLAS Updates
Jose Moreira (IBM), Tim Mattson (Merly.ai)
6:00 - 6:45The Sparse BLAS and the Sparse Matrix Ecosystem 

Introduction
Hartwig Anzt (TU Munich)

Open Discussion with the Audience

Discussion leads: José Moreira (IBM) (moderator), Antonino Tumeo (PNNL), Hartwig Anzt (TU Munich), Benjamin Brock (Intel) 

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