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hell0ks/NVIDIA-Nemotron-3-Ultra-550B-A55B-GGUF

sourceHugging Faceopenmdw-1.1updated 4d agoView on Hugging Face
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NVIDIA-Nemotron-3-Ultra-550B-A55B-GGUF

GGUF quantized version of nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16.

How can I use?

  1. 1.Upstream llama.cpp: Model probably works.
  2. 2.Forked version of llama.cpp: RPC with split mode tensor, MTP, and model works

Detailed information

  • —Model: 161667.64 MiB (2.47 BPW)
  • —MTP: 8882.72 MiB (5.58 BPW)

How it was made?

Model

sh
export TYPE_FFN_UP_EXPS=IQ2_XXS
export TYPE_FFN_DOWN_EXPS=IQ2_XS

export TYPE_LATENT=Q8_0
export TYPE_SHEXP=Q6_K
export TYPE_SSM=Q6_K
export TYPE_ATTN=Q6_K

export TYPE_DEFAULT=Q4_K_M

llama-quantize \
    --tensor-type 'ffn_up_exps='$TYPE_FFN_UP_EXPS \
    --tensor-type 'ffn_down_exps='$TYPE_FFN_DOWN_EXPS \
    --tensor-type 'ffn_latent_(up|down)='$TYPE_LATENT \
    --tensor-type 'ffn_(up|down)_shexp='$TYPE_SHEXP \
    --tensor-type 'ssm_(in|out)='$TYPE_SSM \
    --tensor-type 'attn_(q|k|v|output)='$TYPE_ATTN \
    --imatrix imatrix.gguf \
    "model-BF16.gguf" "$TYPE_DEFAULT"

MTP

sh
    llama-quantize \
    --tensor-type 'nextn\.eh_proj=Q6_K' \
    --tensor-type 'ffn_latent_(up|down)=Q8_0' \
    --tensor-type 'ffn_(up|down)_shexp=Q6_K' \
    --tensor-type 'attn_(q|k|v|output)=Q6_K' \
    "mtp-BF16.gguf" "mtp-quant.gguf" Q4_K_M

imatrix

  • —Generate Korean-focused imatrix calibration dataset (Total 512 samples, Chat template applied for messages)
DatasetLanguageTypeTopicComment
EleutherAI/thepilededuplicatedEnglishtextEnglish corpus15%, 16384
KORMo-Team/Cosmopedia-ko-synthKoreantextKorean corpus35%, 8192
Korean chat generated with Gemma 4KoreanmessagesKorean chat35%, 8192
SWE-bench/SWE-smith-trajectoriesEnglishmessagesTool calling15%, 8192
  • —Create imatrix using llama-imatrix with --parse-special flag

Benchmark

Where is PPL/KLD?

Unfortunately, I don't have PPL/KLD for quant, due to out of compute resource and target budget.

Throughtput

2x DGX Sparks, RPC, -sm tensor with MTP enabled (-ub 2048 -b 2048 -c 262144)

Testpp t/stg t/sTTFT (ms)Total (ms)Tokens
pp2048 tg128 @ d028217.88,29214,5002048+128
pp2048 tg128 @ d409631315.620,66827,8972048+128
pp2048 tg128 @ d819231317.233,70840,1802048+128