openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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import time
from tinygrad import Tensor, TinyJit, Device, Context
from tinygrad.helpers import Profiling, Timing, GlobalCounters
# python3 test/test_speed_v_torch.py TestSpeed.test_add_a
@TinyJit
def plus(a:Tensor, b:Tensor): return a+b
if __name__ == "__main__":
a = Tensor([1]).realize()
b = Tensor([1]).realize()
for i in range(5):
with Timing(prefix=f"{i}:"):
c = plus(a,b)
Device[c.device].synchronize()
assert c.item() == 2
for i in range(5):
st = time.perf_counter()
c = plus(a,b)
et = time.perf_counter() - st
Device[c.device].synchronize()
print(f"nosync {i}: {et*1e6:.2f} us")
for i in range(5):
st = time.perf_counter()
c = plus(a,b)
Device[c.device].synchronize()
et = time.perf_counter() - st
print(f"precise {i}: {et*1e6:.2f} us")
assert GlobalCounters.time_sum_s == 0
with Context(DEBUG=2):
st = time.perf_counter()
c = plus(a,b)
Device[c.device].synchronize()
et = time.perf_counter() - st
print(f"kernel {GlobalCounters.time_sum_s*1e3:.2f} ms / full {et*1e3:.2f} ms -- {et/(GlobalCounters.time_sum_s+1e-12):.2f} x")
with Profiling():
c = plus(a,b)