Microsoft Open-Sources Dion Optimizer: Integrates Gram-NS, Row Selection, and More, 6x Faster Training
JohnCLangford · x · 2026-08-14
Microsoft releases Dion optimizer, integrating computational and statistical improvements including Gram Newton Schulz, row selection, megabatching, cudagraph capture, symmetric kernels, and joint learning rate+fraction, row norm, fused rounding. Claims 6x faster and more parallelizable than Adam.
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