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What does this PR do?

The get_master_weight() of the ColumnParallelLinear first applies a transpose to the weights before calling all gather. However all gather requires the tensors to be contiguous. We can ensure this by simply calling it before the all gather.

Without this PR, I'm often running into:

           work = group.allgather([tensor_list], [tensor])
E       ValueError: Tensors must be contiguous

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Anyone in the community is free to review the PR once the tests have passed.
If we didn't discuss your PR in Github issues there's a high chance it will not be merged.

@facebook-github-bot facebook-github-bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label Apr 1, 2024
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