Add an option to configure layout assignment for transposes on GPU backend. #1485
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…ckend. By default, layout assignment tries to assign a layout to transposes that make them a bitcast. This layout is then propagated inside the HloComputation, which means if it does not cancel out with another transpose, there may be a copy op in some other part of the computation. This copy will later be turned back into a transpose. If you want to avoid that transposes are moved around, you can try setting this new option to false: "XLA_FLAGS=--xla_gpu_transpose_to_bitcast=false" PiperOrigin-RevId: 512009167
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Add an option to configure layout assignment for transposes on GPU backend.
By default, layout assignment tries to assign a layout to transposes that make
them a bitcast. This layout is then propagated inside the HloComputation, which
means if it does not cancel out with another transpose, there may be a copy op
in some other part of the computation. This copy will later be turned back into
a transpose. If you want to avoid that transposes are moved around, you can try
setting this new option to false:
"XLA_FLAGS=--xla_gpu_transpose_to_bitcast=false"