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import torch
def bmm(A: torch.Tensor, B: torch.Tensor) -> torch.Tensor:
"""
Baseline batched matrix multiplication using PyTorch.
Args:
A: Input tensor of shape (B, M, K)
B: Input tensor of shape (B, K, N)
Returns:
Output tensor of shape (B, M, N)
"""
# A:[B,M,K], B:[B,K,N] -> [B,M,N]
return torch.bmm(A.float(), B.float()).to(torch.float16)
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