tinygrad/test/external/fuzz_symbolic.py

63 lines
2.0 KiB
Python

import itertools
import random
from tinygrad.helpers import DEBUG
from tinygrad.shape.symbolic import Variable
random.seed(42)
def add_v(expr, rng=None):
if rng is None: rng = random.randint(0,2)
return expr + v[rng], rng
def div(expr, rng=None):
if rng is None: rng = random.randint(1,9)
return expr // rng, rng
def mul(expr, rng=None):
if rng is None: rng = random.randint(-4,4)
return expr * rng, rng
def mod(expr, rng=None):
if rng is None: rng = random.randint(1,9)
return expr % rng, rng
def add_num(expr, rng=None):
if rng is None: rng = random.randint(-4,4)
return expr + rng, rng
def lt(expr, rng=None):
if rng is None: rng = random.randint(-4,4)
return expr < rng, rng
def ge(expr, rng=None):
if rng is None: rng = random.randint(-4,4)
return expr >= rng, rng
if __name__ == "__main__":
ops = [add_v, div, mul, add_num, mod]
for _ in range(1000):
upper_bounds = [*list(range(1, 10)), 16, 32, 64, 128, 256]
u1 = Variable("v1", 0, random.choice(upper_bounds))
u2 = Variable("v2", 0, random.choice(upper_bounds))
u3 = Variable("v3", 0, random.choice(upper_bounds))
v = [u1,u2,u3]
tape = [random.choice(ops) for _ in range(random.randint(2, 30))]
# 10% of the time, add a less than or greater than
if random.random() < 0.05: tape.append(lt)
elif random.random() < 0.05: tape.append(ge)
expr = Variable.num(0)
rngs = []
for t in tape:
expr, rng = t(expr)
if DEBUG >= 1: print(t.__name__, rng)
rngs.append(rng)
if DEBUG >=1: print(expr)
space = list(itertools.product(range(u1.min, u1.max+1), range(u2.min, u2.max+1), range(u3.min, u3.max+1)))
volume = len(space)
for (v1, v2, v3) in random.sample(space, min(100, volume)):
v = [v1,v2,v3]
rn = 0
for t,r in zip(tape, rngs): rn, _ = t(rn, r)
num = eval(expr.render())
assert num == rn, f"mismatched {expr.render()} at {v1=} {v2=} {v3=} = {num} != {rn}"
if DEBUG >= 1: print(f"matched {expr.render()} at {v1=} {v2=} {v3=} = {num} == {rn}")