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Bedovyy/
YanoljaNEXT-Rosetta-27B-2511-W4A16-G128

Name: YanoljaNEXT-Rosetta-27B-2511-W4A16-G128
Availability: InStock

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GPTQ Quantization of YanoljaNEXT-Rosetta-27B-2511

On 1x3090, you can set the context length up to 49152 using vLLM.

Quantization method

Quantized using

Tool: llm-compressor (63c175b)
System: 1x3090, DDR4 128GB
Time taken: about 1 hour (wall time)

import sys
import random
import string
from transformers import AutoProcessor, AutoModelForCausalLM
from datasets import load_dataset
from llmcompressor import oneshot
from llmcompressor.modifiers.quantization import GPTQModifier
import torch

MODEL_ID = sys.argv[1]
NUM_CALIBRATION_SAMPLES=1024
MAX_SEQUENCE_LENGTH=2048

model = AutoModelForCausalLM.from_pretrained(MODEL_ID, dtype="auto")
processor = AutoProcessor.from_pretrained(MODEL_ID, trust_remote_code=True)

dampening_frac=0.07

ds = load_dataset("Helsinki-NLP/opus-100", "en-ja", split="train[:1024]")
def preprocess_function(example):
    en = example["translation"].get("en", "")
    ja = example["translation"].get("ja", "")
    rid = ''.join(random.choices(string.ascii_lowercase + string.digits, k=8))
    messages = [
        {"role": "system", "content": "Translate the user's text to Japanese.\nOutput format:XML\nProvide the final translation immediately without any other text."},
        {"role": "user", "content": f'<seg id="{rid}" type="calib"><field key="content">{en}</field></seg>'},
        {"role": "assistant", "content": f'<seg id="{rid}" type="calib"><field key="content">{ja}</field></seg>'},
    ]
    return processor.apply_chat_template(
        messages,
        return_tensors="pt",
        padding=False,
        truncation=True,
        max_length=MAX_SEQUENCE_LENGTH,
        tokenize=True,
        add_special_tokens=False,
        return_dict=True,
        add_generation_prompt=False,
    )
ds = ds.map(preprocess_function, batched=False, remove_columns=ds.column_names)

def data_collator(batch):
    assert len(batch) == 1
    return {
        key: (
            torch.tensor(value)
            if key != "pixel_values"
            else torch.tensor(value, dtype=torch.bfloat16).squeeze(0)
        )
        for key, value in batch[0].items()
    }

recipe = [
    GPTQModifier(
        targets="Linear",
        scheme="W4A16",
        ignore=["lm_head"],
        dampening_frac=dampening_frac,
    )
]

SAVE_DIR = sys.argv[2]
oneshot(
    model=model,
    processor=processor,
    recipe=recipe,
    dataset=ds,
    max_seq_length=MAX_SEQUENCE_LENGTH,
    num_calibration_samples=NUM_CALIBRATION_SAMPLES,
    data_collator=data_collator,
    sequential_targets=["Gemma3DecoderLayer"],
    tie_word_embeddings=True,
)

model.save_pretrained(SAVE_DIR, save_compressed=True)
processor.save_pretrained(SAVE_DIR)

Bedovyy/YanoljaNEXT-Rosetta-27B-2511-W4A16-G128

GPTQ Quantization of YanoljaNEXT-Rosetta-27B-2511

Quantization method

Bedovyy/
YanoljaNEXT-Rosetta-27B-2511-W4A16-G128