mirror of https://github.com/commaai/tinygrad.git
74 lines
2.3 KiB
Python
74 lines
2.3 KiB
Python
#!/usr/bin/env python
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import numpy as np
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import unittest
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from tinygrad.lazy import LazyBuffer
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from tinygrad.ops import Device
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from tinygrad.tensor import Tensor
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from tinygrad.shape.symbolic import Variable
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from tinygrad.jit import CacheCollector
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class TestLazyBuffer(unittest.TestCase):
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def test_fromcpu_buffer_sharing(self):
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a = np.arange(8)
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assert LazyBuffer.fromCPU(a).realized._buf is a
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def test_fromcpu_shape_tracker(self):
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def helper(a: np.ndarray):
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print(a.shape, a.strides, a.flags.c_contiguous)
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b = LazyBuffer.fromCPU(a)
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#assert b.st.contiguous == a.flags.c_contiguous
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assert b.st.shape == a.shape
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np.testing.assert_equal(a, Tensor(b).numpy())
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for ndims in range(1, 4):
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a = np.random.randn(*(4,)*ndims).astype(np.float32)
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for stride in [-2, 1, 2]:
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for start in [0, 1]:
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helper(a[(slice(start, None, stride),)*ndims])
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def test_shuffle_pad_ops_cmpeq(self):
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y = Tensor([1]).cat(Tensor([1]) == 0).numpy()
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z = Tensor([1, 0]).numpy()
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np.testing.assert_allclose(y, z)
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def test_shuffle_pad_ops_div(self):
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y = Tensor([1]).cat(Tensor([1]).div(Tensor([2.0]))).numpy()
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z = Tensor([1, 0.5]).numpy()
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np.testing.assert_allclose(y, z)
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def test_shuffle_pad_ops_log(self):
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y = Tensor([1]).cat(Tensor([1]).log()).numpy()
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z = Tensor([1, 0]).numpy()
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np.testing.assert_allclose(y, z)
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def test_shuffle_pad_ops_exp(self):
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y = Tensor([1]).cat(Tensor([1]).exp()).numpy()
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z = Tensor([1, np.e]).numpy()
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np.testing.assert_allclose(y, z)
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@unittest.skipUnless(Device.DEFAULT in ["METAL", "CUDA", "GPU"], "Only GPU backends supports cache")
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def test_children_count(self):
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a = Tensor.ones(8,8,8)
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d1 = a.sum((0))
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d2 = a.sum((0)).reshape(32,2)
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assert len(d1.lazydata.op.src[0].children) == 1
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in1 = d1.reshape(16,4)
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d3 = in1.reshape(8,8)
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assert len(d3.lazydata.op.src[0].children) == 2
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CacheCollector.start()
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l = Tensor.ones(8,8)
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r = Tensor.ones(8,8)
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dd = d1 + l
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dd.realize()
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de = d3 + r
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de.realize()
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cache = CacheCollector.finish()
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assert len(cache) == 3
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assert cache[0].prg.name.startswith("r_") # Reduce should not merged 2 times.
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assert cache[1].prg.name.startswith("E_")
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assert cache[2].prg.name.startswith("E_")
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if __name__ == "__main__":
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unittest.main()
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