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https://github.com/tile-ai/tilelang.git
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90 lines
2.3 KiB
Python
90 lines
2.3 KiB
Python
from tilelang import tvm as tvm
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import tilelang.testing
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import tilelang as tl
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import pytest
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def view_test(N, M, dtype, new_dtype=None):
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import tilelang.language as T
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new_shape = [N // M, M]
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if new_dtype:
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from tvm import DataType
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dtype_src = DataType(dtype)
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dtype_dst = DataType(new_dtype)
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src_bits = dtype_src.bits
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dst_bits = dtype_dst.bits
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scale = src_bits / dst_bits
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new_shape[-1] = int(M * scale)
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@T.prim_func
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def main(
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A: T.Tensor((N,), dtype),
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B: T.Tensor(new_shape, new_dtype if new_dtype else dtype),
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):
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with T.Kernel(1) as _:
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A_viewed = T.view(A, new_shape, dtype=new_dtype)
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T.copy(A_viewed, B)
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return main
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def run_view(N, M, dtype, new_dtype=None):
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program = view_test(N, M, dtype, new_dtype)
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jit_kernel = tl.compile(program, out_idx=-1)
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profiler = jit_kernel.get_profiler()
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def ref_program(A):
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if new_dtype:
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from tilelang.utils.tensor import map_torch_type
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torch_dtype = map_torch_type(new_dtype)
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return A.view(N // M, M).view(dtype=torch_dtype)
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return A.view(N // M, M)
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profiler.assert_allclose(ref_program, atol=1e-2, rtol=1e-2)
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def test_reshape_view():
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# Test view with same dtype
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run_view(1024, 32, "float32")
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run_view(2048, 64, "float16")
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# Test view with dtype conversion
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run_view(1024, 32, "float32", "float16")
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run_view(2048, 64, "float16", "float32")
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def view_shape_mismatch_test(N, M, dtype, new_dtype=None):
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import tilelang.language as T
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new_shape = [N // M, M + 1]
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if new_dtype:
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from tvm import DataType
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dtype_src = DataType(dtype)
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dtype_dst = DataType(new_dtype)
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src_bits = dtype_src.bits
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dst_bits = dtype_dst.bits
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scale = src_bits / dst_bits
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new_shape[-1] = int(M * scale)
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@T.prim_func
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def main(
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A: T.Tensor((N,), dtype),
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B: T.Tensor(new_shape, new_dtype if new_dtype else dtype),
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):
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with T.Kernel(1) as _:
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A_viewed = T.view(A, new_shape, dtype=new_dtype)
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T.copy(A_viewed, B)
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return main
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def test_view_shape_mismatch():
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with pytest.raises(AssertionError):
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view_shape_mismatch_test(1024, 32, "float32")
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if __name__ == "__main__":
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tilelang.testing.main()
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