GitLab

* Use correct FP8 group in multi-GPU docs

FP8 process group should be tensor-parallel group
Signed-off-by: Tim Moon <tmoon@nvidia.com>

* Synchronize FP8 scales over world group in multi-GPU docs
Signed-off-by: Tim Moon <tmoon@nvidia.com>

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Signed-off-by: Tim Moon <tmoon@nvidia.com>