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2b6ab7c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | #!/usr/bin/env python3
"""Byte-level cross-check of the NumPy dequantizers against ggml's own.
`ggml_deq <type> <gguf> <offset> <n>` (built from sdq-ling/ggml_deq.cpp) dumps one
dequantized row using ggml's dequantize_row_*; this script compares it with the
NumPy implementation used by verify_ling.py / verify_moe_layer.py.
"""
import importlib.util
import subprocess
import sys
import numpy as np
spec = importlib.util.spec_from_file_location('vl', str(__import__('pathlib').Path(__file__).with_name('verify_ling.py')))
vl = importlib.util.module_from_spec(spec)
spec.loader.exec_module(vl)
GGML_DEQ = str(__import__('pathlib').Path(__file__).resolve().parents[1] / 'llama.cpp/build/bin/ggml_deq')
def main():
kv, ts = vl.parse_headers()
cases = [(2, 'ffn_gate_exps.weight', 12), (2, 'ffn_up_exps.weight', 12),
(2, 'ffn_down_exps.weight', 14), (5, 'ffn_gate_exps.weight', 12),
(5, 'ffn_down_exps.weight', 14), (20, 'ffn_gate_exps.weight', 12),
(23, 'ffn_down_exps.weight', 14)]
all_ok = True
for il, name, tt in cases:
si, off, dims, t = ts[f'blk.{il}.{name}']
assert t == tt, (name, t, tt)
nrow = vl.row_bytes(dims[0], tt)
ne0 = dims[0]
for ie in (0, 17, 127):
eo = off + ie * nrow * dims[1]
out = subprocess.run([GGML_DEQ, str(tt), vl.SHARDS[si], str(eo), str(ne0)],
capture_output=True, check=True)
ref = np.frombuffer(out.stdout, dtype=np.float32)
with open(vl.SHARDS[si], 'rb') as f:
f.seek(eo)
mine = vl.dequant(f.read(nrow), ne0, tt)
d = float(np.abs(ref - mine).max())
ok = d == 0.0
all_ok &= ok
print(f'blk.{il}.{name} E{ie} type={vl.NAME.get(tt)} n={ne0}: '
f'max|ggml - numpy| = {d:g} {"PASS" if ok else "FAIL"}')
print('\nALL PASS' if all_ok else '\nSOME FAILED')
return 0 if all_ok else 1
if __name__ == '__main__':
sys.exit(main())
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