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Support q4k in ipex-llm (#10796)

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* support q4k

* update
This commit is contained in:
Yina Chen 2024-04-18 18:55:28 +08:00 committed by GitHub
parent 88463cbf47
commit 8796401b08
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GPG key ID: B5690EEEBB952194
3 changed files with 6 additions and 4 deletions
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3
python/llm/src/ipex_llm/ggml/quantize.py
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@ -45,7 +45,8 @@ ggml_tensor_qtype = {"sym_int4": 2, # q4_0 in ggml
"q2_k": 23,
"gguf_iq1_s": 24,
"gguf_iq1_m": 25,
"q6_k": 26}
"q6_k": 26,
"q4_k": 27}
_llama_quantize_type = {"q4_0": 2,
"q4_1": 3,

3
python/llm/src/ipex_llm/transformers/low_bit_linear.py
View file

@ -74,6 +74,7 @@ IQ2_XXS = ggml_tensor_qtype["gguf_iq2_xxs"]
IQ2_XS = ggml_tensor_qtype["gguf_iq2_xs"]
Q2_K = ggml_tensor_qtype["q2_k"]
IQ1_S = ggml_tensor_qtype["gguf_iq1_s"]
Q4_K = ggml_tensor_qtype["q4_k"]
Q6_K = ggml_tensor_qtype["q6_k"]
@ -215,7 +216,7 @@ def ggml_convert_qtype(tensor: torch.Tensor, qtype: int,
if not convert_shape_only and device != 'meta':
dst = ctypes.c_void_p(dst_tensor.data.data_ptr())
hist = (ctypes.c_int64 * 16)()
if qtype not in [IQ2_XXS, IQ2_XS, Q2_K, IQ1_S, Q6_K]:
if qtype not in [IQ2_XXS, IQ2_XS, Q2_K, IQ1_S, Q4_K, Q6_K]:
ggml.ggml_quantize_tensor(src, dst, qtype, n, k, hist)
else:
if imatrix is not None:

4
python/llm/src/ipex_llm/transformers/model.py
View file

@ -119,7 +119,7 @@ class _BaseAutoModelClass:
``'sym_int5'``, ``'asym_int5'``, ``'sym_int8'``, ``'nf3'``,
``'nf4'``, ``'fp4'``, ``'fp8'``, ``'fp8_e4m3'``, ``'fp8_e5m2'``,
``'gguf_iq2_xxs'``, ``'gguf_iq2_xs'``, gguf_iq1_s'``,
``'fp16'``, ``'bf16'``, or ``'q6_k'``,
``'fp16'``, ``'bf16'``, ``'q4_k'`` or ``'q6_k'``,
``'sym_int4'`` means symmetric int 4, ``'asym_int4'`` means
asymmetric int 4, ``'nf4'`` means 4-bit NormalFloat, etc.
Relevant low bit optimizations will be applied to the model.
@ -378,7 +378,7 @@ class _BaseAutoModelClass:
f"Unknown load_in_low_bit value: {q_k}, expected:"
f" sym_int4, asym_int4, sym_int5, asym_int5, sym_int8, nf3, nf4, "
f"fp4, fp8, fp8_e4m3, fp8_e5m2, fp16, bf16, gguf_iq2_xxs, "
f"gguf_iq2_xs, gguf_iq1_s, q2_k, q6_k, mixed_fp4 or mixed_fp8.")
f"gguf_iq2_xs, gguf_iq1_s, q2_k, q4_k, q6_k, mixed_fp4 or mixed_fp8.")
qtype = ggml_tensor_qtype[q_k]
# In case it needs a second try,