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New convert support for C++ NPU (#12430)
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* initial commit

* fix

* fix style

* fix style

* fix

* fix
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@rnwang04
rnwang04 authored Nov 22, 2024
1 parent c089b6c commit 4ffa6c7
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Showing 4 changed files with 180 additions and 19 deletions.
2 changes: 1 addition & 1 deletion python/llm/example/NPU/HF-Transformers-AutoModels/LLM/CPP_Examples/convert.py
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Original file line number Diff line number Diff line change
Expand Up @@ -63,7 +63,7 @@
transpose_value_cache=not args.disable_transpose_value_cache,
mixed_precision=True,
trust_remote_code=True,
compile_full_model=True,
convert_model=True,
save_directory=save_dir)

tokenizer = AutoTokenizer.from_pretrained(model_path, trust_remote_code=True)
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8 changes: 4 additions & 4 deletions python/llm/src/ipex_llm/transformers/npu_model.py
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Original file line number Diff line number Diff line change
Expand Up @@ -134,7 +134,7 @@ def from_pretrained(cls, *args, **kwargs):
mixed_precision = kwargs.pop('mixed_precision', False)
quantization_group_size = kwargs.pop("quantization_group_size", 0)
mock_device = kwargs.pop('device', None) # For mock on CPU
compile_full_model = kwargs.pop('compile_full_model', False)
convert_model = kwargs.pop('convert_model', False)
save_directory = kwargs.pop('save_directory', None)

invalidInputError(
Expand Down Expand Up @@ -202,7 +202,7 @@ def from_pretrained(cls, *args, **kwargs):
"inter_pp": inter_pp,
"intra_pp": intra_pp,
"transpose_value_cache": transpose_value_cache,
"compile_full_model": compile_full_model,
"convert_model": convert_model,
"save_directory": save_directory,
}
model = cls.optimize_npu_model(*args, **optimize_kwargs)
Expand Down Expand Up @@ -241,7 +241,7 @@ def optimize_npu_model(cls, *args, **kwargs):
inter_pp = kwargs.pop("inter_pp", None)
intra_pp = kwargs.pop("intra_pp", None)
transpose_value_cache = kwargs.pop("transpose_value_cache", True)
compile_full_model = kwargs.pop('compile_full_model', False)
convert_model = kwargs.pop('convert_model', False)
save_directory = kwargs.pop('save_directory', None)

if hasattr(model, "llm"):
Expand Down Expand Up @@ -280,7 +280,7 @@ def optimize_npu_model(cls, *args, **kwargs):
max_prompt_len=max_prompt_len,
transpose_value_cache=transpose_value_cache,
group_size=quantization_group_size,
compile_full_model=compile_full_model,
convert_model=convert_model,
save_directory=save_directory)
model.save_low_bit = types.MethodType(save_low_bit, model)
return model
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64 changes: 57 additions & 7 deletions python/llm/src/ipex_llm/transformers/npu_pipeline_model/convert_pipeline.py
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Original file line number Diff line number Diff line change
Expand Up @@ -193,7 +193,7 @@ def convert_llm(model: torch.nn.Module,
max_prompt_len: int,
transpose_value_cache: bool,
group_size: int,
compile_full_model: bool=False,
convert_model: bool=False,
save_directory: str=None):
# whether to set layernorm weight as const
layernorm_const = os.environ.get("IPEX_LLM_LAYERNORM_CONST", "1") == "1"
Expand All @@ -203,6 +203,16 @@ def convert_llm(model: torch.nn.Module,
else:
n_splits_linear = model.config.hidden_size // group_size
n_splits_down_proj = model.config.intermediate_size // group_size
if convert_model:
convert_llm_for_deploy(model,
kv_len,
max_prompt_len,
transpose_value_cache,
n_splits_linear,
n_splits_down_proj,
group_size,
save_directory)
return 0
if model.config.model_type == "llama":
with tempfile.TemporaryDirectory() as temp_dir:
weight_dir = os.path.join(temp_dir, "model_weights")
Expand Down Expand Up @@ -340,7 +350,7 @@ def convert_llm(model: torch.nn.Module,
from .qwen import convert_qwen_layer, convert_lm_head_and_embedding
first_blob_path, last_blob_path = convert_lm_head_and_embedding(model, n_splits_linear,
temp_dir, weight_dir,
compile_full_model)
convert_model)

param_list = []
for layer_idx in range(0, layer_num):
Expand All @@ -350,11 +360,6 @@ def convert_llm(model: torch.nn.Module,
with Pool() as pool:
result = pool.starmap(convert_qwen_layer, param_list)

if compile_full_model:
convert_qwen_layer(model, 0, n_splits_linear, n_splits_down_proj,
temp_dir, weight_dir, transpose_value_cache, max_prompt_len,
group_size, layernorm_const, "prefill")

# Prefill Runner
from ipex_llm.transformers.npu_models.convert_mp import convert_qwen
convert_qwen(model,
Expand Down Expand Up @@ -403,3 +408,48 @@ def convert_llm(model: torch.nn.Module,
import types
model.generate = types.MethodType(generate, model)
return model


def convert_llm_for_deploy(model: torch.nn.Module,
kv_len: int,
max_prompt_len: int,
transpose_value_cache: bool,
n_splits_linear: int,
n_splits_down_proj: int,
group_size: int,
save_directory: str=None):
os.mkdir(save_directory)
weight_dir = os.path.join(save_directory, "model_weights")
os.mkdir(weight_dir)

if model.config.model_type == "qwen2":
layernorm_const = True
if model.config.hidden_size == 1536:
# Qwen2-1.5B-Instruct
fused_layers = 1
else:
fused_layers = 2
update_dict = {"kv_len": kv_len,
"num_head": model.model.layers[0].self_attn.num_heads,
"head_dim": model.model.layers[0].self_attn.head_dim,
"transpose_value_cache": transpose_value_cache,
"max_prompt_len": max_prompt_len,
"layernorm_const": layernorm_const,
"group_size": group_size,
"fused_layers": fused_layers}
model.config.update(update_dict)
model.config.save_pretrained(save_directory)

from .qwen import convert_qwen_layer, convert_fused_qwen_layer
from .qwen import convert_lm_head_and_embedding
# save fused_layers blobs of fused decoder layers
convert_fused_qwen_layer(model, fused_layers, n_splits_linear, n_splits_down_proj,
save_directory, weight_dir, transpose_value_cache, kv_len,
group_size, layernorm_const, "decode")
# save blob of single prefill layer
convert_qwen_layer(model, 0, n_splits_linear, n_splits_down_proj,
save_directory, weight_dir, transpose_value_cache, max_prompt_len,
group_size, layernorm_const, "prefill")
# save blob of lmhead and bin of embedding
convert_lm_head_and_embedding(model, n_splits_linear,
save_directory, weight_dir, True)
125 changes: 118 additions & 7 deletions python/llm/src/ipex_llm/transformers/npu_pipeline_model/qwen.py
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@


def convert_lm_head_and_embedding(model, n_splits_linear, temp_dir, weight_dir,
compile_full_model=False):
convert_model=False):
num_heads = model.model.layers[0].self_attn.num_heads
head_dim = model.model.layers[0].self_attn.head_dim
rms_norm_eps = model.config.rms_norm_eps
Expand Down Expand Up @@ -60,7 +60,7 @@ def convert_lm_head_and_embedding(model, n_splits_linear, temp_dir, weight_dir,
)

last_blob_path = update_names_of_IR_and_export_blob(new_lm_head, f"lm_head",
temp_dir, True, True)
temp_dir, True, False)

# save weights bins files
if not isinstance(lm_head, SlicedLMHead):
Expand All @@ -83,11 +83,13 @@ def convert_lm_head_and_embedding(model, n_splits_linear, temp_dir, weight_dir,
dtype=np.float16,
input_length=1,
)
first_blob_path = update_names_of_IR_and_export_blob(new_embedding, f"embedding",
temp_dir, True, keep_ir=True)
if compile_full_model:
if convert_model:
bin_file = os.path.join(weight_dir, f"model_embedding_input_0.bin")
embedding_layer.weight.to(torch.float16).detach().numpy().tofile(bin_file)
first_blob_path = True
else:
first_blob_path = update_names_of_IR_and_export_blob(new_embedding, f"embedding",
temp_dir, True, keep_ir=True)
return first_blob_path, last_blob_path


Expand Down Expand Up @@ -138,8 +140,8 @@ def convert_qwen_layer(model, layer_idx, n_splits_linear, n_splits_down_proj,
else:
input_len = kv_len
decoder_name = "decoder_layer_prefill"
compile = False
keep_ir = True
compile = True
keep_ir = False
single_decoder = LowBitQwenMultiDecoderlayer(
[1, input_len, num_heads * head_dim],
input_layernorm_weights=None,
Expand Down Expand Up @@ -190,3 +192,112 @@ def convert_qwen_layer(model, layer_idx, n_splits_linear, n_splits_down_proj,
scale.numpy().tofile(bin_file)

del single_decoder


def convert_fused_qwen_layer(model, fused_layers, n_splits_linear, n_splits_down_proj,
save_dir, weight_dir, transpose_value_cache, kv_len, group_size,
layernorm_const, mode="decode"):
num_heads = model.model.layers[0].self_attn.num_heads
num_key_value_heads = model.model.layers[0].self_attn.num_key_value_heads
head_dim = model.model.layers[0].self_attn.head_dim
intermediate_size = model.config.intermediate_size
rms_norm_eps = model.config.rms_norm_eps
layer_num = len(model.model.layers)
fused_layer_num = layer_num // fused_layers

from ipex_llm.transformers.npu_models.qwen2_mp import LowBitQwenMultiDecoderlayer
for i in range(fused_layers):
layer_start = i * fused_layer_num
layer_end = min((i + 1) * fused_layer_num, layer_num)
layer_weights = []
input_layer_norm_weights = []
post_attn_layernorm_weights = []
q_biases = []
k_biases = []
v_biases = []
layer_indexs = range(layer_start, layer_end)
n_splits_linear = len(model.model.layers[0].mlp.gate_proj_dq_list)
n_splits_down_proj = len(model.model.layers[0].mlp.down_proj_dq_list)
for layer_idx in layer_indexs:
curr_layer = model.model.layers[layer_idx]
attn_layer = curr_layer.self_attn
mlp_layer = curr_layer.mlp

weights = []
for layer_list in [attn_layer.q_proj_dq_list, attn_layer.k_proj_dq_list,
attn_layer.v_proj_dq_list, attn_layer.o_proj_dq_list,
mlp_layer.gate_proj_dq_list, mlp_layer.up_proj_dq_list,
mlp_layer.down_proj_dq_list]:
l_weights = []
scales = []
for l in layer_list:
l_weights.append(l.weight)
scales.append(l.scale)
weights.append((torch.stack(l_weights, axis=0), torch.stack(scales, axis=0)))

cached_cos = curr_layer.self_attn.rotary_emb.cos_cached.to(torch.float16)
cached_sin = curr_layer.self_attn.rotary_emb.sin_cached.to(torch.float16)
layer_norm_0 = curr_layer.input_layernorm.weight.to(torch.float16)
layer_norm_1 = curr_layer.post_attention_layernorm.weight.to(torch.float16)

layer_weights.extend(weights)
input_layer_norm_weights.append(layer_norm_0)
post_attn_layernorm_weights.append(layer_norm_1)
q_biases.append(attn_layer.q_proj_dq_list.q_proj_dq_0.bias.to(torch.float16))
k_biases.append(attn_layer.k_proj_dq_list.k_proj_dq_0.bias.to(torch.float16))
v_biases.append(attn_layer.v_proj_dq_list.v_proj_dq_0.bias.to(torch.float16))

# save weight
input_lm_bin_file = os.path.join(weight_dir, f"model_{layer_idx}_input_3.bin")
post_lm_bin_file = os.path.join(weight_dir, f"model_{layer_idx}_input_4.bin")
layer_norm_0.data.numpy().tofile(input_lm_bin_file)
layer_norm_1.data.numpy().tofile(post_lm_bin_file)
st_idx = 5
# 5 / 6 / 7 are bias
q_bias_bin_file = os.path.join(weight_dir, f"model_{layer_idx}_input_{st_idx}.bin")
k_bias_bin_file = os.path.join(weight_dir, f"model_{layer_idx}_input_{st_idx+1}.bin")
v_bias_bin_file = os.path.join(weight_dir, f"model_{layer_idx}_input_{st_idx+2}.bin")
q_biases[-1].data.numpy().tofile(q_bias_bin_file)
k_biases[-1].data.numpy().tofile(k_bias_bin_file)
v_biases[-1].data.numpy().tofile(v_bias_bin_file)
# 6, 7 are past k/v
for idx, (weight, scale) in enumerate(weights):
bin_file = os.path.join(weight_dir, f"model_{layer_idx}_input_{st_idx+3+idx*2}.bin")
weight.numpy().tofile(bin_file)
bin_file = os.path.join(weight_dir,
f"model_{layer_idx}_input_{st_idx+3+idx*2+1}.bin")
scale.numpy().tofile(bin_file)

if isinstance(weights[0], tuple):
np_dtype = np.int8 if weights[0][0].dtype == torch.int8 else np.uint8
else: # FP16 Linear
np_dtype = np.float16

fused_decoder = LowBitQwenMultiDecoderlayer(
[1, 1, num_heads * head_dim],
input_layernorm_weights=input_layer_norm_weights,
post_attn_layernorm_weights=post_attn_layernorm_weights,
q_biases=q_biases,
k_biases=k_biases,
v_biases=v_biases,
cached_cos=cached_cos,
cached_sin=cached_sin,
num_heads=num_heads,
num_key_value_heads=num_key_value_heads,
num_layers=fused_layer_num,
max_seq_len=kv_len,
rms_norm_eps=rms_norm_eps,
intermediate_size=intermediate_size,
mode=mode,
transpose_value=transpose_value_cache,
dtype=np_dtype,
n_splits_linear=n_splits_linear,
n_splits_down_proj=n_splits_down_proj,
group_size=group_size
)
update_names_of_IR_and_export_blob(fused_decoder,
f"decoder_layer_{i}",
save_dir,
compile_blob=True,
keep_ir=False)
return 0

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