| |
| """NumPy 反量化器 vs ggml 自帶反量化器的逐位元組交叉檢查。 |
| |
| `ggml_deq <type> <gguf> <offset> <n>` 用 ggml 的 dequantize_row_* 傾印一列； |
| 本腳本把它與 verify_epq.py 使用的 NumPy 實作比對。 |
| """ |
| import importlib.util |
| import os |
| import subprocess |
| import sys |
|
|
| import numpy as np |
|
|
| _HERE = os.path.dirname(os.path.abspath(__file__)) |
| spec = importlib.util.spec_from_file_location('vl', os.path.join(_HERE, 'verify_epq.py')) |
| vl = importlib.util.module_from_spec(spec) |
| spec.loader.exec_module(vl) |
|
|
| GGML_DEQ = os.environ.get( |
| 'EPQ_GGML_DEQ', os.path.join(_HERE, '..', 'llama.cpp', 'build', 'bin', 'ggml_deq')) |
|
|
|
|
| def main(): |
| kv, ts = vl.parse_headers() |
| |
| cases = [] |
| for il in (2, 5, 20, 45): |
| for name in ('ffn_gate_exps.weight', 'ffn_up_exps.weight', |
| 'ffn_down_exps.weight'): |
| cases.append((il, name, ts[f'blk.{il}.{name}'][3])) |
| 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, 255): |
| 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()) |
|
|
