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cs.DC2026
LEO: Tracing GPU Stall Root Causes via Cross-Vendor Backward Slicing
Yuning Xia, John Mellor-Crummey
More than half of the Top 500 supercomputers employ GPUs as accelerators. On GPU-accelerated platforms, developers face a key diagnostic gap: profilers show source lines where stal…
cs.DC2023
A Portable Framework for Accelerating Stencil Computations on Modern Node Architectures
Ryuichi Sai, John Mellor-Crummey, Jinfan Xu +1
Finite-difference methods based on high-order stencils are widely used in seismic simulations, weather forecasting, computational fluid dynamics, and other scientific applications.…