2020-12-06 11:34:40 -07:00
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#!/usr/bin/env python
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2020-12-08 15:18:45 -07:00
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import gc
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2020-12-06 11:34:40 -07:00
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import unittest
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2023-02-27 07:53:18 -07:00
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import numpy as np
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2021-01-01 07:19:03 -07:00
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from tinygrad.tensor import Tensor
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2020-12-06 11:34:40 -07:00
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2023-12-04 22:01:04 -07:00
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2020-12-08 15:18:45 -07:00
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def tensors_allocated():
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2023-12-04 22:01:04 -07:00
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return sum([isinstance(x, Tensor) for x in gc.get_objects()])
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2020-12-17 15:37:31 -07:00
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2020-12-06 11:34:40 -07:00
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class TestGC(unittest.TestCase):
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2023-12-04 22:01:04 -07:00
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def test_gc(self):
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a = Tensor.zeros(4, 4, requires_grad=True)
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b = Tensor.zeros(4, 4, requires_grad=True)
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(a * b).mean().backward()
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assert tensors_allocated() > 0
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del a, b
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assert tensors_allocated() == 0
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2020-12-08 15:18:45 -07:00
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2023-12-04 22:01:04 -07:00
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def test_gc_complex(self):
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a = Tensor(np.zeros((4, 4), dtype=np.float32), requires_grad=True)
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b = Tensor(np.zeros((4, 4), dtype=np.float32), requires_grad=True)
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assert tensors_allocated() == 2
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(a * b).mean().backward()
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assert tensors_allocated() == 4
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del b
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assert tensors_allocated() == 2
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b = Tensor(np.zeros((4, 4), dtype=np.float32), requires_grad=True)
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print(tensors_allocated())
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(a * b).mean().backward()
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print(tensors_allocated())
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assert tensors_allocated() == 4
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del b
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assert tensors_allocated() == 2
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2020-12-06 11:34:40 -07:00
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2023-12-04 22:01:04 -07:00
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if __name__ == "__main__":
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unittest.main()
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