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gguf : upd gguf conversion script

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This commit is contained in:
M. Yusuf Sarıgöz
2023-07-29 13:31:07 +03:00
parent cc3dd7f042
commit 0317c41d98
1 changed files with 16 additions and 15 deletions
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31
convert-llama-h5-to-gguf.py
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@@ -12,11 +12,14 @@ from sentencepiece import SentencePieceProcessor
NDArray: 'TypeAlias' = 'np.ndarray[Any, Any]'
def permute(weights: NDArray, n_head: int) -> NDArray:
return (weights.reshape(n_head, 2, weights.shape[0] // n_head // 2, *weights.shape[1:])
.swapaxes(1, 2)
.reshape(weights.shape))
if len(sys.argv) < 3:
print("Usage: convert-h5-to-ggml.py dir-model ftype\n")
print(" ftype == 0 -> float32")
@@ -45,7 +48,7 @@ if len(sys.argv) > 2:
fname_out = sys.argv[1] + "/ggml-model-" + ftype_str[ftype] + ".gguf"
model = AutoModelForCausalLM.from_pretrained( dir_model, low_cpu_mem_usage=True, trust_remote_code=True )
model = AutoModelForCausalLM.from_pretrained(dir_model, low_cpu_mem_usage=True, trust_remote_code=True)
list_vars = model.state_dict()
# count tensors to be converted
@@ -56,7 +59,6 @@ for name in list_vars.keys():
continue
tensor_count += 1
#fout = open(fname_out, "wb")
gguf_writer = gguf.GGUFWriter.open(fname_out)
with open(dir_model + "/config.json", "r", encoding="utf-8") as f:
@@ -65,7 +67,7 @@ with open(dir_model + "/config.json", "r", encoding="utf-8") as f:
# This mmust be changed when adding/deleting kv
kv_count = 13
print("tensors " + str(tensor_count) + " kv " + str(kv_count) )
print("tensors " + str(tensor_count) + " kv " + str(kv_count))
print("write gguf header")
@@ -92,10 +94,10 @@ gguf_writer.write_float32(llm_arch + ".attention.layer_norm_rms_epsilon", hparam
tokens: List[str] = []
scores: List[float] = []
if Path( dir_model + "/tokenizer.model").is_file():
if Path(dir_model + "/tokenizer.model").is_file():
# vocab type SPIECE
print( "Adding sentencepiece tokenizer vocab." )
tokenizer = SentencePieceProcessor( dir_model + "/tokenizer.model" )
print("Adding sentencepiece tokenizer vocab.")
tokenizer = SentencePieceProcessor(dir_model + "/tokenizer.model")
# output vocab_size followed by all piece/score pairs
outbytes: bytes
@@ -118,14 +120,14 @@ if Path( dir_model + "/tokenizer.model").is_file():
text = tokenizer.id_to_piece(i).replace("\u2581", " ").encode("utf-8")
score: float = tokenizer.get_score(i)
tokens.append( str(text) );
scores.append( score );
tokens.append(str(text))
scores.append(score)
print("write gguf tokens")
gguf_writer.write_string("tokenizer.ggml.model", "llama")
gguf_writer.write_array("tokenizer.ggml.tokens",tokens)
gguf_writer.write_array("tokenizer.ggml.scores",scores)
gguf_writer.write_tokenizer_model("llama")
gguf_writer.write_token_list(tokens)
gguf_writer.write_token_scores(scores)
# TENSORS
@@ -142,7 +144,7 @@ for name in list_vars.keys():
# permute these
if name.endswith(".q_proj.weight") or name.endswith(".k_proj.weight"):
data = permute( data, hparams["num_attention_heads"] )
data = permute(data, hparams["num_attention_heads"])
# chnage tensor name
@@ -197,10 +199,10 @@ for name in list_vars.keys():
print(" Skip tensor: " + name)
continue
## permute these
# permute these
if name.endswith(".q_proj.weight") or name.endswith(".k_proj.weight"):
print(" Permute tensor: " + name)
data = permute( data, hparams["num_attention_heads"] )
data = permute(data, hparams["num_attention_heads"])
n_dims = len(data.shape)
@@ -221,7 +223,6 @@ for name in list_vars.keys():
data = data.astype(np.float32)
ftype_cur = 0
gguf_writer.write_tensor_padding()
gguf_writer.write_tensor(data)
gguf_writer.close()