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tinygrab/test/test_symbolic_ops.py

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Python

import unittest
from tinygrad.shape.symbolic import Variable
from tinygrad.helpers import getenv
from tinygrad.tensor import Tensor, Device
import numpy as np
@unittest.skipIf(getenv("ARM64") or getenv("PTX"), "ARM64 and PTX are not supported")
@unittest.skipIf(Device.DEFAULT in ["WEBGPU"], f"{Device.DEFAULT} is not supported")
class TestSymbolicOps(unittest.TestCase):
def test_plus1(self):
def f(a):
return (a + 1).realize()
for i in range(1, 5):
vi = Variable("i", 1, 10).bind(i)
a = Tensor.rand(3, i)
symbolic = f(a.reshape(3, vi)).reshape(3, i).numpy()
expected = f(a).numpy()
np.testing.assert_allclose(symbolic, expected, atol=1e-6, rtol=1e-6)
def test_add(self):
def f(a, b):
return (a + b).realize()
for i in range(1, 5):
vi = Variable("i", 1, 10).bind(i)
a = Tensor.rand(3, i)
b = Tensor.rand(3, i)
symbolic = f(a.reshape(3, vi), b.reshape(3, vi)).reshape(3, i).numpy()
expected = f(a, b).numpy()
np.testing.assert_allclose(symbolic, expected, atol=1e-6, rtol=1e-6)
def test_matmul(self):
def f(a, b):
return (a @ b).realize()
for i in range(1, 5):
vi = Variable("i", 1, 10).bind(i)
a = Tensor.rand(3, i)
b = Tensor.rand(i, 5)
symbolic = f(a.reshape(3, vi), b.reshape(vi, 5)).numpy()
expected = f(a, b).numpy()
np.testing.assert_allclose(symbolic, expected, atol=1e-6, rtol=1e-6)
def test_attention(self, dropout_p=0.0):
def f(q, k, v):
return Tensor.scaled_dot_product_attention(
q.transpose(1, 2),
k.transpose(1, 2),
v.transpose(1, 2),
dropout_p=dropout_p,
).realize()
for i in range(1, 5):
vi = Variable("i", 1, 10).bind(i)
q = Tensor.rand(2, 1, 4, 8)
k = Tensor.rand(2, i, 4, 8)
v = Tensor.rand(2, i, 4, 8)
symbolic = (
f(q, k.reshape(2, vi, 4, 8), v.reshape(2, vi, 4, 8))
.reshape(2, 4, 1, 8)
.numpy()
)
expected = f(q, k, v).numpy()
np.testing.assert_allclose(symbolic, expected, atol=1e-6, rtol=1e-6)
def test_attention_training(self):
with Tensor.train():
self.test_attention(dropout_p=0.0)
with self.assertRaises(AssertionError):
# symbolic shape dropout is not supported
self.test_attention(dropout_p=0.5)
def test_cat_dim0(self):
def f(a, b):
return a.cat(b, dim=0).realize()
for i in range(1, 5):
vi = Variable("i", 1, 10).bind(i)
a = Tensor.rand(i, 3)
b = Tensor.rand(2, 3)
symbolic = f(a.reshape(vi, 3), b).reshape(i + 2, 3).numpy()
expected = f(a, b).numpy()
np.testing.assert_allclose(symbolic, expected, atol=1e-6, rtol=1e-6)
def test_cat_dim1(self):
def f(a, b):
return a.cat(b, dim=1).realize()
for i in range(1, 5):
vi = Variable("i", 1, 10).bind(i)
a = Tensor.rand(3, i)
b = Tensor.rand(3, 2)
symbolic = f(a.reshape(3, vi), b).reshape(3, i + 2).numpy()
expected = f(a, b).numpy()
np.testing.assert_allclose(symbolic, expected, atol=1e-6, rtol=1e-6)
def test_cat_dim0_two_vars(self):
def f(a, b):
return a.cat(b, dim=0).realize()
for i in range(1, 5):
for j in range(1, 5):
vi = Variable("i", 1, 10).bind(i)
vj = Variable("j", 1, 10).bind(j)
a = Tensor.rand(i, 3)
b = Tensor.rand(j, 3)
symbolic = (
f(a.reshape(vi, 3), b.reshape(vj, 3)).reshape(i + j, 3).numpy()
)
expected = f(a, b).numpy()
np.testing.assert_allclose(symbolic, expected, atol=1e-6, rtol=1e-6)
def test_cat_dim1_two_vars(self):
def f(a, b):
return a.cat(b, dim=1).realize()
for i in range(1, 5):
for j in range(1, 5):
vi = Variable("i", 1, 10).bind(i)
vj = Variable("j", 1, 10).bind(j)
a = Tensor.rand(3, i)
b = Tensor.rand(3, j)
symbolic = (
f(a.reshape(3, vi), b.reshape(3, vj)).reshape(3, i + j).numpy()
)
expected = f(a, b).numpy()
np.testing.assert_allclose(symbolic, expected, atol=1e-6, rtol=1e-6)
def test_two_vars_plus1_ij(self):
def f(a, b):
return (a @ b + 1).realize()
for i in range(1, 5):
for j in range(1, 5):
vi = Variable("i", 1, 10).bind(i)
vj = Variable("j", 1, 10).bind(j)
a = Tensor.rand(i, 3)
b = Tensor.rand(3, j)
symbolic = f(a.reshape(vi, 3), b.reshape(3, vj)).reshape(i, j).numpy()
expected = f(a, b).numpy()
np.testing.assert_allclose(symbolic, expected, atol=1e-6, rtol=1e-6)
def test_two_vars_plus1_ji(self):
# reverse the order of variables
def f(a, b):
return (a @ b + 1).realize()
for i in range(1, 5):
for j in range(1, 5):
vi = Variable("i", 1, 10).bind(i)
vj = Variable("j", 1, 10).bind(j)
a = Tensor.rand(j, 3)
b = Tensor.rand(3, i)
symbolic = f(a.reshape(vj, 3), b.reshape(3, vi)).reshape(j, i).numpy()
expected = f(a, b).numpy()
np.testing.assert_allclose(symbolic, expected, atol=1e-6, rtol=1e-6)
def test_shrink(self):
for i in range(1, 5):
vi = Variable("i", 1, 10).bind(i)
a = Tensor.rand(7, 11)
symbolic = a.shrink(((3, 5), (vi, vi + 2)))
symbolic = symbolic.numpy()
expected = a.shrink(((3, 5), (i, i + 2))).numpy()
np.testing.assert_allclose(symbolic, expected, atol=1e-6, rtol=1e-6)
if __name__ == "__main__":
unittest.main()