implementation detail · filed under optimization
Mixed-FP8 quantization
Mixed-FP8 layers are added on top of an NVFP4-amax recipe.
Also called mixed-FP8.
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this step is precisely the introduction of the mixed-FP8 layers on top of the NVFP4-amax recipe
usedpost trainingin Nemotron 3 UltraNVIDIA
Filed alongside
Other methods under optimization :: training precision.
NVFP4BF16NVFP4 pre-trainingFP8 mixed-precision trainingFP4+FP8 mixed precisionFP8-precision reinforcement learningMXFP8BF16 gradient reductionBF16 mixed-precision trainingBlock-wise FP8 activation quantization with offloadE2M1FP32 attention-output retentionFP32 gradient reductionFP8 storage for the residual stateHigh-precision final network layersMixed-precision trainingNVFP4 fine-grained micro-block scalingTwo-dimensional block quantization