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Evidence record 14092 · automatically gathered

Characterizing Warp Divergence from Pascal to Blackwell

Since Volta introduced Independent Thread Scheduling (ITS), NVIDIA GPUs have been widely assumed to handle warp divergence in a fixed manner. We test this assumption across Ampere, Hopper, and datacenter and consumer Blackwell GPUs, using pre-ITS Pascal as a baseline. Combining cycle-accurate microbenchmarks, hardware counters, and static analysis of compiler-generated SASS, we separate stable behavior from architectural change. Across all tested generations, divergent paths serialize linearly w

Record details

Published: 25 July 2026
Source: HuggingFace Daily Papers
Category: Research
Topics: Environment
Retrieved: 29 July 2026

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How to cite this record

ethics.ai (25 July 2026), “Characterizing Warp Divergence from Pascal to Blackwell,” evidence record 14092, https://ethics.ai/record/14092 (originally published by HuggingFace Daily Papers).

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