[Fixbug] Reduce should perform syncthread after initializing shared memory to zero#325
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yaoyaoding merged 1 commit intohidet-org:mainfrom Jul 22, 2023
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vadiklyutiy
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…le compiling the model `sam` (#444) Closes #325 The error in the linked issue was caused by [this code segment](https://github.com/CentML/hidet/blob/bfbb4db6d7792ed3de3be4e9702e597b8fbbe373/python/hidet/graph/transforms/conv_channel_last.py#L46-L75) in `graph/transforms/conv_channel_last.py`. By the logic flow of this code segment, if the operator `node` has two inputs, the first one with rank 4 and the second rank 3(an example case in the model: an `AddOp` where the first input has shape `[1, 256, 64, 64]` and the second `[256, 1, 1]`) , then by the time the code reaches the line 75, the variable `new_perm`would have value `[1, 2, 0]`, and this value will be recorded as the permutation scheme used to get the new output, which is incorrect as the appropriate value should be `[0, 2, 3, 1]` here.
vadiklyutiy
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Dec 20, 2024
…le compiling the model `sam` (#444) Closes #325 The error in the linked issue was caused by [this code segment](https://github.com/CentML/hidet/blob/bfbb4db6d7792ed3de3be4e9702e597b8fbbe373/python/hidet/graph/transforms/conv_channel_last.py#L46-L75) in `graph/transforms/conv_channel_last.py`. By the logic flow of this code segment, if the operator `node` has two inputs, the first one with rank 4 and the second rank 3(an example case in the model: an `AddOp` where the first input has shape `[1, 256, 64, 64]` and the second `[256, 1, 1]`) , then by the time the code reaches the line 75, the variable `new_perm`would have value `[1, 2, 0]`, and this value will be recorded as the permutation scheme used to get the new output, which is incorrect as the appropriate value should be `[0, 2, 3, 1]` here.
vadiklyutiy
pushed a commit
that referenced
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Dec 26, 2024
…le compiling the model `sam` (#444) Closes #325 The error in the linked issue was caused by [this code segment](https://github.com/CentML/hidet/blob/bfbb4db6d7792ed3de3be4e9702e597b8fbbe373/python/hidet/graph/transforms/conv_channel_last.py#L46-L75) in `graph/transforms/conv_channel_last.py`. By the logic flow of this code segment, if the operator `node` has two inputs, the first one with rank 4 and the second rank 3(an example case in the model: an `AddOp` where the first input has shape `[1, 256, 64, 64]` and the second `[256, 1, 1]`) , then by the time the code reaches the line 75, the variable `new_perm`would have value `[1, 2, 0]`, and this value will be recorded as the permutation scheme used to get the new output, which is incorrect as the appropriate value should be `[0, 2, 3, 1]` here.
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This bug slipped through the CI because the test shapes were all too small. There is an initialization of shared memory that is not guarded by syncthread before others were able to access it.