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sglang/sgl-kernel/tests/test_sampling_scaling_penalties.py

36 lines
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Python

import pytest
import torch
from sgl_kernel import sampling_scaling_penalties
@pytest.mark.parametrize("batch_size", [1, 2, 4, 8, 16, 32, 64, 65])
@pytest.mark.parametrize("vocab_size", [2048, 4096, 8192, 16384, 32768, 32767])
@pytest.mark.parametrize("dtype", [torch.half, torch.bfloat16])
def test_sampling_scaling_penalties(batch_size, vocab_size, dtype):
device = torch.device("cuda")
rtol = 1e-3
atol = 1e-3
logits = torch.randn(batch_size, vocab_size, device=device, dtype=dtype)
scaling_penalties = (
torch.rand(batch_size, vocab_size, device=device, dtype=dtype) + 0.5
)
ref_output = torch.where(
logits > 0, logits / scaling_penalties, logits * scaling_penalties
)
kernel_output = sampling_scaling_penalties(logits, scaling_penalties)
torch.testing.assert_close(
kernel_output,
ref_output,
rtol=rtol,
atol=atol,
msg=f"Failed for batch_size={batch_size}, vocab_size={vocab_size}, dtype={dtype}",
)
if __name__ == "__main__":
pytest.main([__file__])