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Use KV cache constant names provided by compressed tensors #1200

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Merged
kylesayrs merged 5 commits into from
Mar 11, 2025
Merged

Use KV cache constant names provided by compressed tensors #1200

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7294b33
use constants
kylesayrs Feb 26, 2025
7473329
use value
kylesayrs Feb 26, 2025
74b8c36
Merge branch 'main' into kylesayrs/kv-use-constants
kylesayrs Mar 10, 2025
ea21b04
Merge branch 'main' into kylesayrs/kv-use-constants
kylesayrs Mar 11, 2025
509197a
Merge branch 'main' into kylesayrs/kv-use-constants
kylesayrs Mar 11, 2025
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12 changes: 9 additions & 3 deletions src/llmcompressor/modifiers/quantization/calibration.py
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Original file line number Diff line number Diff line change
@@ -1,7 +1,11 @@
from typing import Any, Dict, Optional, Tuple

import torch
from compressed_tensors.quantization import QuantizationStatus, is_attention_module
from compressed_tensors.quantization import (
KVCacheScaleType,
QuantizationStatus,
is_attention_module,
)
from compressed_tensors.quantization.lifecycle.forward import forward_quantize
from compressed_tensors.quantization.utils import is_kv_cache_quant_scheme
from compressed_tensors.utils.offload import is_module_offloaded, update_parameter_data
Expand Down Expand Up @@ -194,8 +198,10 @@ def calibrate_kv_cache_output_hook(module: Module, _args: Any, _output: torch.Te
Hook to update k_scale and v_scale parameters when running kv_cache quantization.
"""
kv_cache = getattr(module, "kv_cache")
update_parameter_data(module, kv_cache.k_scales[module.layer_idx], "k_scale")
update_parameter_data(module, kv_cache.v_scales[module.layer_idx], "v_scale")
k_scale = kv_cache.k_scales[module.layer_idx]
v_scale = kv_cache.v_scales[module.layer_idx]
update_parameter_data(module, k_scale, KVCacheScaleType.KEY.value)
update_parameter_data(module, v_scale, KVCacheScaleType.VALUE.value)


def set_unset_kv_cache(module: Module):
Expand Down