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[Efficiency improvement] GGUF conversion - file caching. #286

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[Efficiency improvement] GGUF conversion - file caching. #286

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b456873
Add file caching.
Symbiomatrix Jun 6, 2025
a68f795
Added flag for low space environments.
Symbiomatrix Jun 11, 2025
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14 changes: 10 additions & 4 deletions tools/convert.py
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Original file line number Diff line number Diff line change
Expand Up @@ -155,6 +155,7 @@ def parse_args():
parser = argparse.ArgumentParser(description="Generate F16 GGUF files from single UNET")
parser.add_argument("--src", required=True, help="Source model ckpt file.")
parser.add_argument("--dst", help="Output unet gguf file.")
parser.add_argument("--clearsrc", action="store_true", help="Delete source file after conversion before saving to disk, for low space environment. RISKY.")
args = parser.parse_args()

if not os.path.isfile(args.src):
Expand Down Expand Up @@ -274,7 +275,7 @@ def handle_tensors(writer, state_dict, model_arch):

writer.add_tensor(new_name, data, raw_dtype=data_qtype)

def convert_file(path, dst_path=None, interact=True, overwrite=False):
def convert_file(path, dst_path=None, interact=True, overwrite=False, clear_source = False):
# load & run model detection logic
state_dict = load_state_dict(path)
model_arch = detect_arch(state_dict)
Expand Down Expand Up @@ -307,11 +308,16 @@ def convert_file(path, dst_path=None, interact=True, overwrite=False):
raise OSError("Output exists and overwriting is disabled!")

# handle actual file
writer = gguf.GGUFWriter(path=None, arch=model_arch.arch)
writer = gguf.GGUFWriter(path=None, arch=model_arch.arch, use_temp_file=True) # Cache to file.
writer.add_quantization_version(gguf.GGML_QUANT_VERSION)
if ftype_gguf is not None:
writer.add_file_type(ftype_gguf)

if clear_source:
try:
os.remove(path)
logging.info(f"Deleted source file: {path}")
except Exception as e:
logging.warning(f"Failed to delete source file: {e}")
handle_tensors(writer, state_dict, model_arch)
writer.write_header_to_file(path=dst_path)
writer.write_kv_data_to_file()
Expand All @@ -327,4 +333,4 @@ def convert_file(path, dst_path=None, interact=True, overwrite=False):

if __name__ == "__main__":
args = parse_args()
convert_file(args.src, args.dst)
convert_file(args.src, args.dst, clear_source = args.clearsrc)