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StarPilot/tinygrad_repo/extra/gemm/simple_matmul.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

58 lines
2.5 KiB
Python

import numpy as np
from tinygrad import dtypes, Tensor
from tinygrad.helpers import getenv, get_single_element
from tinygrad.dtype import _to_np_dtype
from tinygrad.engine.realize import lower_and_compile
from tinygrad.codegen.opt import OptOps
dtype_in = (dtypes.half if getenv("HALF") else dtypes.bfloat16 if getenv("BFLOAT16") else
dtypes.fp8e4m3 if getenv("FP8E4M3") else dtypes.fp8e5m2 if getenv("FP8E5M2") else dtypes.float)
acc_dtype = (dtypes.half if getenv("ACC_HALF") else dtypes.bfloat16 if getenv("ACC_BFLOAT16") else
dtypes.fp8e4m3 if getenv("ACC_FP8E4M3") else dtypes.fp8e5m2 if getenv("ACC_FP8E5M2") else None)
if getenv("INT"): dtype_in, acc_dtype = dtypes.int8, dtypes.int32
if getenv("UINT"): dtype_in, acc_dtype = dtypes.uint8, dtypes.int32
N = getenv("N", 4096)
M = getenv("M", N)
K = getenv("K", N)
CNT = getenv("CNT", 10)
atol, rtol = {dtypes.half:{1e-3, 1e-2}, dtypes.bfloat16:(1e-3, 1e-2), dtypes.fp8e4m3:(1e-1, 1e-1), dtypes.fp8e5m2:(1.0, 5e-1)}.get(dtype_in, (1e-4, 3e-2))
ATOL, RTOL = getenv("ATOL", atol), getenv("RTOL", rtol)
INT_LOW = getenv("INT_LOW", 0)
INT_HIGH = getenv("INT_HIGH", 10)
if __name__ == "__main__":
def init_matrix(rows, cols):
rng = np.random.default_rng()
# NOTE: numpy does not support bfloat16
if (np_dtype := _to_np_dtype(dtype_in)) is None: np_dtype = np.float32
if dtype_in in dtypes.ints:
return Tensor(rng.integers(INT_LOW, INT_HIGH, (rows, cols), dtype=np_dtype)).realize()
return Tensor(rng.random((rows, cols), dtype=np.float32).astype(np_dtype)-0.5).cast(dtype_in).realize()
a, b = init_matrix(M, K), init_matrix(K, N)
for i in range(CNT):
if i > 0 and getenv("RAND", 0) != 0:
a, b = init_matrix(M, K), init_matrix(K, N)
c = a.matmul(b, dtype=acc_dtype).realize()
if getenv("SHOULD_USE_TC"):
linear = lower_and_compile(a.matmul(b, dtype=acc_dtype).schedule_linear())
call = get_single_element(list(linear.src))
applied_opts = call.src[0].src[0].arg.applied_opts
assert any(opt.op is OptOps.TC for opt in applied_opts), f"TC not triggered, {applied_opts}"
ref = a.numpy().astype(np.float32) @ b.numpy().astype(np.float32)
res = c.numpy()
try:
np.testing.assert_allclose(res, ref, rtol=RTOL, atol=ATOL)
except AssertionError as e:
if getenv("DEBUG_VALUES", 0) > 0:
mismatch = np.where(~np.isclose(res, ref, rtol=RTOL, atol=ATOL))
print("Mismatch indices:", mismatch)
print("Result :", res[mismatch])
print("Ground truth :", ref[mismatch])
raise e