mirror of
https://github.com/zebrajr/pytorch.git
synced 2025-12-07 12:21:27 +01:00
dc55704b48
This PR renames every cache_limit to recompile_limit via sed. Old config options are maintained via Config(alias='xyz') Pull Request resolved: https://github.com/pytorch/pytorch/pull/143709 Approved by: https://github.com/jansel
482 lines
17 KiB
Python
482 lines
17 KiB
Python
# Owner(s): ["module: dynamo"]
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from unittest.mock import patch
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import torch
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import torch._dynamo.test_case
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import torch._dynamo.testing
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class RecompileTests(torch._dynamo.test_case.TestCase):
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def test_automatic_dynamic_reduce_recompiles(self):
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# Test the counterfactual, lots of recompiles without this config
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def foo(x, y):
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return x * y
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def run_foo_6_times_and_count_recompiles(dynamic=None):
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cnt = torch._dynamo.testing.CompileCounter()
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x = torch.randn([2])
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y = torch.randn([2])
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opt = torch.compile(foo, backend=cnt, dynamic=dynamic)
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opt(x, y)
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x = torch.randn([3])
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y = torch.randn([3])
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opt(x, y)
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x = torch.randn([4])
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y = torch.randn([4])
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opt(x, y)
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opt(x, y)
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x = torch.randn([5])
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y = torch.randn([5])
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opt(x, y)
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opt(x, y)
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x = torch.randn([6])
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y = torch.randn([6])
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opt(x, y)
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return cnt
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@patch.object(torch._dynamo.config, "automatic_dynamic_shapes", False)
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@patch.object(torch._dynamo.config, "assume_static_by_default", True)
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def run_without_automatic():
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return run_foo_6_times_and_count_recompiles()
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@patch.object(torch._dynamo.config, "automatic_dynamic_shapes", True)
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@patch.object(torch._dynamo.config, "assume_static_by_default", True)
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def run_with_automatic():
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return run_foo_6_times_and_count_recompiles()
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without = run_without_automatic()
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self.assertEqual(without.frame_count, 5)
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self.assertEqual(without.op_count, 5)
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torch._dynamo.reset()
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without = run_foo_6_times_and_count_recompiles(dynamic=False)
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self.assertEqual(without.frame_count, 5)
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self.assertEqual(without.op_count, 5)
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torch._dynamo.reset()
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with_automatic = run_with_automatic()
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self.assertEqual(with_automatic.frame_count, 2)
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self.assertEqual(with_automatic.op_count, 2)
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torch._dynamo.reset()
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with_automatic = run_foo_6_times_and_count_recompiles(dynamic=None)
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self.assertEqual(with_automatic.frame_count, 2)
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self.assertEqual(with_automatic.op_count, 2)
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torch._dynamo.reset()
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with_dynamic = run_foo_6_times_and_count_recompiles(dynamic=True)
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self.assertEqual(with_dynamic.frame_count, 1)
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self.assertEqual(with_dynamic.op_count, 1)
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@patch.object(torch._dynamo.config, "assume_static_by_default", True)
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def test_recompiles_true_false_flop(self):
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# Test the counterfactual, lots of recompiles without this config
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def foo(x, y):
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if x:
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return y * 2
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else:
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return y * y
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def run_foo_6_times_and_count_recompiles():
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cnt = torch._dynamo.testing.CompileCounter()
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opt = torch.compile(foo, backend=cnt, fullgraph=True)
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x = True
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y = torch.randn([2])
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opt(x, y)
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x = False
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y = torch.randn([2])
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opt(x, y)
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x = True
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y = torch.randn([3])
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opt(x, y)
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x = True
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y = torch.randn([4])
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opt(x, y)
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x = True
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y = torch.randn([5])
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opt(x, y)
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return cnt
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@patch.object(torch._dynamo.config, "automatic_dynamic_shapes", False)
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@patch.object(torch._dynamo.config, "assume_static_by_default", True)
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def run_without_automatic():
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return run_foo_6_times_and_count_recompiles()
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@patch.object(torch._dynamo.config, "automatic_dynamic_shapes", True)
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@patch.object(torch._dynamo.config, "assume_static_by_default", True)
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def run_with_automatic():
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return run_foo_6_times_and_count_recompiles()
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without = run_without_automatic()
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self.assertEqual(without.frame_count, 5)
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self.assertEqual(without.op_count, 5)
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torch._dynamo.reset()
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with_automatic = run_with_automatic()
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self.assertEqual(with_automatic.frame_count, 3)
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self.assertEqual(with_automatic.op_count, 3)
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def test_automatic_dynamic_tensor_scalar_change(self):
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# Test the counterfactual, lots of recompiles without this config
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def foo(x, y):
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return x * y
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def run_foo_6_times_and_count_recompiles_swap_types():
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cnt = torch._dynamo.testing.CompileCounter()
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x = torch.randn([2])
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y = torch.randn([2])
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opt = torch.compile(foo, backend=cnt)
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opt(x, y)
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x = torch.randn([3])
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y = 3
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opt(x, y)
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x = torch.randn([4])
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y = torch.randn([4])
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opt(x, y)
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opt(x, y)
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x = torch.randn([5])
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y = 4
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opt(x, y)
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opt(x, y)
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x = torch.randn([6])
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y = torch.randn([6])
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opt(x, y)
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return cnt
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@patch.object(torch._dynamo.config, "automatic_dynamic_shapes", False)
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@patch.object(torch._dynamo.config, "assume_static_by_default", True)
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def run_without_automatic():
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return run_foo_6_times_and_count_recompiles_swap_types()
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@patch.object(torch._dynamo.config, "automatic_dynamic_shapes", True)
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@patch.object(torch._dynamo.config, "assume_static_by_default", True)
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def run_with_automatic():
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return run_foo_6_times_and_count_recompiles_swap_types()
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without = run_without_automatic()
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self.assertEqual(without.frame_count, 5)
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self.assertEqual(without.op_count, 5)
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torch._dynamo.reset()
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with_automatic = run_with_automatic()
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self.assertEqual(with_automatic.frame_count, 3)
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self.assertEqual(with_automatic.op_count, 3)
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def test_aliasing_guard_failures(self):
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def foo(a, b, c):
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a.add_(b)
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return c + 1
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cnt = torch._dynamo.testing.CompileCounter()
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compiled_foo = torch.compile(foo, backend=cnt, fullgraph=True)
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x = torch.randn([3])
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y = torch.randn([3])
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z = torch.randn([3])
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cmp_result = compiled_foo(
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x.detach().clone(), y.detach().clone(), z.detach().clone()
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)
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eager_result = foo(x.detach().clone(), y.detach().clone(), z.detach().clone())
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self.assertEqual(cmp_result, eager_result)
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self.assertEqual(cnt.frame_count, 1)
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cmp_result = compiled_foo(
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z.detach().clone(), y.detach().clone(), x.detach().clone()
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)
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eager_result = foo(z.detach().clone(), y.detach().clone(), x.detach().clone())
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self.assertEqual(cmp_result, eager_result)
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# No recompile, alias preserved
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self.assertEqual(cnt.frame_count, 1)
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x_clone = x.detach().clone()
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cmp_result = compiled_foo(x_clone, y.detach().clone(), x_clone)
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x_clone = x.detach().clone()
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eager_result = compiled_foo(x_clone, y.detach().clone(), x_clone)
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self.assertEqual(cmp_result, eager_result)
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# Recompile, alias changed
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self.assertEqual(cnt.frame_count, 2)
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def test_aliasing_guard_failures_with_globals(self):
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g1 = torch.randn([3])
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g2 = torch.randn([3])
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def foo(a):
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a.add_(g1)
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return g2 + 1
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cnt = torch._dynamo.testing.CompileCounter()
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compiled_foo = torch.compile(foo, backend=cnt, fullgraph=True)
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z = torch.randn([3])
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cmp_result = compiled_foo(z.detach().clone())
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eager_result = foo(z.detach().clone())
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self.assertEqual(cmp_result, eager_result)
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self.assertEqual(cnt.frame_count, 1)
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g1 = g1.detach().clone()
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cmp_result = compiled_foo(g1)
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g1 = g1.detach().clone()
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eager_result = compiled_foo(g1)
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self.assertEqual(cmp_result, eager_result)
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# Recompile, alias changed
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self.assertEqual(cnt.frame_count, 2)
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def test_dynamic_shape_parameter_recompile(self):
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# Test the matrix multiplication with Parameters.
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# Without the config assume_parameters_shapes_static_by_default,
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# the torch.nn.Parameter shapes are assumed to be static which leads to recompilation
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w = torch.nn.Parameter(torch.randn(3, 2))
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def foo(x):
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return x @ w
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def run_foo_6_times_and_count_recompiles():
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cnt = torch._dynamo.testing.CompileCounter()
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opt = torch.compile(foo, backend=cnt, fullgraph=True)
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x = torch.nn.Parameter(torch.randn(1, 3))
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opt(x)
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x = torch.nn.Parameter(torch.randn(10, 3))
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opt(x)
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x = torch.nn.Parameter(torch.randn(11, 3))
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opt(x)
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x = torch.nn.Parameter(torch.randn(15, 3))
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opt(x)
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x = torch.nn.Parameter(torch.randn(15, 3))
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opt(x)
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return cnt
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@patch.object(torch._dynamo.config, "force_parameter_static_shapes", True)
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@patch.object(torch._dynamo.config, "automatic_dynamic_shapes", False)
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@patch.object(torch._dynamo.config, "assume_static_by_default", True)
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def run_static_comp_default_param():
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return run_foo_6_times_and_count_recompiles()
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@patch.object(torch._dynamo.config, "force_parameter_static_shapes", True)
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@patch.object(torch._dynamo.config, "automatic_dynamic_shapes", True)
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@patch.object(torch._dynamo.config, "assume_static_by_default", True)
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def run_dynamic_comp_default_param():
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return run_foo_6_times_and_count_recompiles()
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@patch.object(torch._dynamo.config, "force_parameter_static_shapes", False)
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@patch.object(torch._dynamo.config, "automatic_dynamic_shapes", False)
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@patch.object(torch._dynamo.config, "assume_static_by_default", True)
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def run_static_comp_dynamic_param():
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return run_foo_6_times_and_count_recompiles()
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@patch.object(torch._dynamo.config, "force_parameter_static_shapes", False)
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@patch.object(torch._dynamo.config, "automatic_dynamic_shapes", True)
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@patch.object(torch._dynamo.config, "assume_static_by_default", True)
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def run_dynamic_comp_dynamic_param():
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return run_foo_6_times_and_count_recompiles()
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torch._dynamo.reset()
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static_comp_default_param = run_static_comp_default_param()
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self.assertEqual(static_comp_default_param.frame_count, 4)
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self.assertEqual(static_comp_default_param.op_count, 4)
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torch._dynamo.reset()
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dynamic_comp_default_param = run_dynamic_comp_default_param()
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self.assertEqual(dynamic_comp_default_param.frame_count, 4)
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self.assertEqual(dynamic_comp_default_param.op_count, 4)
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torch._dynamo.reset()
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static_comp_dynamic_param = run_static_comp_dynamic_param()
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self.assertEqual(static_comp_dynamic_param.frame_count, 4)
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self.assertEqual(static_comp_dynamic_param.op_count, 4)
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torch._dynamo.reset()
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dynamic_comp_dynamic_param = run_dynamic_comp_dynamic_param()
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self.assertEqual(dynamic_comp_dynamic_param.frame_count, 2)
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self.assertEqual(dynamic_comp_dynamic_param.op_count, 2)
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def test_simple_module_recompile(self):
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class SimpleDropout(torch.nn.Module):
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def __init__(self) -> None:
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super().__init__()
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self.dropout = torch.nn.Dropout(0.5)
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self.linear = torch.nn.Linear(10, 1)
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def forward(self, x):
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return self.dropout(self.linear(x))
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model = SimpleDropout()
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x = torch.randn(10)
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counter = torch._dynamo.testing.CompileCounter()
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model = torch.compile(model, backend=counter, fullgraph=True)
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for _ in range(20):
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model.eval()
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model(x)
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model.train()
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model(x)
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self.assertEqual(counter.frame_count, 2)
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@patch.object(torch._dynamo.config, "recompile_limit", 2)
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def test_no_recursive_compile_after_cache_limit_hit(self):
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def f(x, n):
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x = x + n
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return g(x, n)
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def g(x, n):
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x = x + n
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return h(x, n)
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def h(x, n):
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return x + n
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counter = torch._dynamo.testing.CompileCounter()
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opt_f = torch.compile(f, backend=counter, dynamic=False)
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for i in range(10):
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opt_f(torch.ones(3), i)
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self.assertEqual(counter.frame_count, 2)
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def test_automatic_dynamic_on_closed_ints(self):
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def f(x):
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def g(y):
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return y + x
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return g
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counter = torch._dynamo.testing.CompileCounter()
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@torch.compile(backend=counter)
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def h(x, g):
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return g(x)
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for i in range(10):
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h(torch.randn(5), f(i))
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self.assertEqual(counter.frame_count, 2)
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@patch.object(torch._dynamo.config, "recompile_limit", 2)
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def test_run_mode_after_cache_limit_hit(self):
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def f(x, n):
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x = x + n
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if torch._dynamo.is_compiling():
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x = x + 1
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return g(x, n)
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def g(x, n):
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x = x + n
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if torch._dynamo.is_compiling():
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x = x + 2
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return x
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counter = torch._dynamo.testing.CompileCounter()
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opt_f = torch.compile(f, backend=counter, dynamic=False)
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# compiles
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self.assertEqual(opt_f(torch.ones(3), 0), torch.ones(3) + 3)
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self.assertEqual(opt_f(torch.ones(3), 1), torch.ones(3) + 5)
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# cache limit hit
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self.assertEqual(opt_f(torch.ones(3), 2), torch.ones(3) + 4)
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self.assertEqual(opt_f(torch.ones(3), 3), torch.ones(3) + 6)
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# run mode
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self.assertEqual(opt_f(torch.ones(3), 0), torch.ones(3) + 3)
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self.assertEqual(opt_f(torch.ones(3), 1), torch.ones(3) + 5)
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self.assertEqual(counter.frame_count, 2)
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@torch._dynamo.config.patch(automatic_dynamic_shapes_mark_as="unbacked")
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def test_automatic_dynamic_shapes_mark_as_unbacked(self):
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counter = torch._dynamo.testing.CompileCounter()
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@torch.compile(backend=counter)
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def f(x):
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return x * x
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f(torch.randn(3))
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f(torch.randn(2))
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f(torch.randn(1))
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f(torch.randn(0))
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self.assertEqual(counter.frame_count, 2) # not three or four!
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@torch._dynamo.config.patch(automatic_dynamic_shapes_mark_as="oblivious")
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def test_automatic_dynamic_shapes_mark_as_oblivious(self):
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counter = torch._dynamo.testing.CompileCounter()
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def f(x):
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if x.size(0) < 10:
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return x * 1
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else:
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return x + 10
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opt_f = torch.compile(backend=counter, fullgraph=True)(f)
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for i in [3, 2, 1, 0]:
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self.assertEqual(f(torch.zeros(i)), opt_f(torch.zeros(i)))
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self.assertEqual(counter.frame_count, 2) # not three or four!
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@torch._dynamo.config.patch(automatic_dynamic_shapes_mark_as="oblivious")
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def test_automatic_dynamic_shapes_mark_as_oblivious_fail_counterfactual(self):
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counter = torch._dynamo.testing.CompileCounter()
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def f(x):
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if x.size(0) < 2:
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return x * 1
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else:
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return x + 10
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opt_f = torch.compile(backend=counter, fullgraph=True)(f)
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opt_f(torch.randn(1))
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with self.assertRaises(torch._dynamo.exc.UserError):
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opt_f(torch.randn(0))
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def test_ambient_autocast_recompile(self):
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weights = torch.randn(10, 10)
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counter = torch._dynamo.testing.CompileCounterWithBackend("aot_eager")
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@torch.compile(backend=counter, fullgraph=True)
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def fn(x):
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return torch.mm(x, weights)
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x = torch.randn(1, 10)
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self.assertEqual(fn(x).dtype, torch.float32)
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with torch.autocast("cpu", torch.float16):
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self.assertEqual(fn(x).dtype, torch.float16)
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with torch.autocast("cpu", torch.bfloat16):
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self.assertEqual(fn(x).dtype, torch.bfloat16)
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# should recompile each time
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self.assertEqual(counter.frame_count, 3)
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def test_autocast_constant_fold(self):
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# test that constant-folded autocast functions
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# work properly - it should work if the global autocast
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# state is guarded.
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weights = torch.randn(10, 10)
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counter = torch._dynamo.testing.CompileCounterWithBackend("eager")
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def fn(x):
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if torch.get_autocast_dtype("cpu") == torch.float16:
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x = x + 1
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else:
|
|
x = x - 1
|
|
return torch.mm(x, weights)
|
|
|
|
opt_fn = torch.compile(fn, backend=counter, fullgraph=True)
|
|
|
|
x = torch.randn(1, 10)
|
|
|
|
with torch.autocast("cpu", torch.float16):
|
|
self.assertEqual(fn(x), opt_fn(x))
|
|
|
|
with torch.autocast("cpu", torch.bfloat16):
|
|
self.assertEqual(fn(x), opt_fn(x))
|
|
|
|
self.assertEqual(counter.frame_count, 2)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
from torch._dynamo.test_case import run_tests
|
|
|
|
run_tests()
|