Files
sglang/sgl-kernel/tests/test_sampling_scaling_penalties.py
2025-01-12 19:38:17 -08:00

40 lines
1.2 KiB
Python

import torch
from sgl_kernel import sampling_scaling_penalties
def test_sampling_scaling_penalties():
batch_sizes = [1, 2, 4, 8, 16, 32, 64, 65]
vocab_sizes = [2048, 4096, 8192, 16384, 32768, 32767]
dtypes = [torch.float32, torch.half, torch.bfloat16]
device = torch.device("cuda")
for dtype in dtypes:
rtol = 1e-3
atol = 1e-3
for bs in batch_sizes:
for vocab_size in vocab_sizes:
logits = torch.randn(bs, vocab_size, device=device, dtype=dtype)
scaling_penalties = (
torch.rand(bs, 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={bs}, vocab_size={vocab_size}, dtype={dtype}",
)
if __name__ == "__main__":
test_sampling_scaling_penalties()
print("All tests passed!")