Files
StarPilot/tinygrad_repo/extra/gemm/simple_matvec.py
T
firestar5683 22a8575199 Vendor dependencies and resources for standalone builds
Keep official openpilot ancestry and dependency licenses. Store resources directly in Git, remove LFS setup requirements, and leave the downloadable big model outside the source tree.
2026-10-03 21:01:18 +00:00

31 lines
1.1 KiB
Python

import numpy as np
from tinygrad.helpers import getenv
from tinygrad import dtypes, Tensor, Device
dtype_in = dtypes.half if getenv("HALF") else dtypes.bfloat16 if getenv("BFLOAT16") else dtypes.float
acc_dtype = dtypes.half if getenv("ACC_HALF") else dtypes.bfloat16 if getenv("ACC_BFLOAT16") else None
GPUS = getenv("GPUS", 0)
M = getenv("M", 16384)
N = getenv("N", 4096)
CNT = getenv("CNT", 10)
ATOL = getenv("ATOL", 1e-4)
RTOL = getenv("RTOL", 3e-2)
def _rand(device):
a, b = Tensor.rand(M, N, dtype=dtype_in).realize(), Tensor.rand(N, dtype=dtype_in).realize()
if isinstance(device, tuple):
a.shard_(device, axis=1)
b.shard_(device, axis=0)
return a, b
if __name__ == "__main__":
device = tuple(f"{Device.DEFAULT}:{i}" for i in range(GPUS)) if GPUS > 1 else Device.DEFAULT
a, b = _rand(device)
for i in range(CNT):
if i > 0 and getenv("RAND", 0) != 0:
a, b = _rand(device)
c = a.matmul(b, dtype=acc_dtype).realize()
nc = c.numpy()
comp = a.numpy().astype(np.float32) @ b.numpy().astype(np.float32)
np.testing.assert_allclose(nc, comp, atol=ATOL, rtol=RTOL)