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I am using a very small model for testing purposes using tensorflow 2.3 and keras. Looking at my terminal, I get the following warning:

I tensorflow/compiler/mlir/mlir_graph_optimization_pass.cc:118] None of the MLIR optimization passes are enabled (registered 1)
However, the code works as expected. But what does this message mean?
Thanks.
                This is not an error message. The I at the beginning of the message means this is an informational log message.
– jkr
                Sep 14, 2020 at 15:02
MLIR is being used as another solution to implementing and optimizing Tensorflow logic. This informative message is benign and is saying MLIR was not being used. This is expected as in TF 2.3, the MLIR based implementation is still being developed and proven, so end users are generally not expected to use the MLIR implementation and are instead expected to use the non-MLIR feature complete implementation.
Update: still experimental on version 2.9.1. On the docs it is written:
DO NOT USE, DEV AND TESTING ONLY AT THE MOMENT.
                @daniel451: The official documentation says: DO NOT USE, DEV AND TESTING ONLY AT THE MOMENT.
– Elazar
                Oct 5, 2021 at 16:48
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– Community
                Dec 2, 2021 at 9:25
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– Community
                Nov 18, 2021 at 11:11
        
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