8000 Check that CPUInductor selects valid SIMD ISA by malfet · Pull Request #1952 · pytorch/builder · GitHub
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Check that CPUInductor selects valid SIMD ISA #1952

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Merged
merged 2 commits into from
Aug 9, 2024
Merged

Check that CPUInductor selects valid SIMD ISA #1952

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Check that CPUInductor selects valid SIMD ISA
malfet Aug 8, 2024
41682cc
Fix imports
malfet Aug 8, 2024
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8 changes: 8 additions & 0 deletions test/smoke_test/smoke_test.py
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Expand Up @@ -258,6 +258,14 @@ def foo(x: torch.Tensor) -> torch.Tensor:
x_pt2 = torch.compile(foo)(x)
torch.testing.assert_close(x_eager, x_pt2)

# Check that SIMD were detected for the architecture
if device == "cpu":
from torch._inductor.codecache import pick_vec_isa, invalid_vec_isa
isa = pick_vec_isa()
if isa == invalid_vec_isa:
raise RuntimeError("Can't detect vectorized ISA for CPU")
print(f"Picked CPU ISA {type(isa).__name__} bit width {isa.bit_width()}")

# Reset torch dynamo since we are changing mode
torch._dynamo.reset()
dtype = torch.float32
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