logger update with torch master changes (#5346)
minor fix to resolve the logger import issue caused by torch upstream
cleanup
https://github.com/pytorch/pytorch/commit/b6201a60c57f79d081ecde66e1ce70e6614a3052
log variable was renamed in the torch master. To create the logger using
public API to avoid compatibility issues.
Fixes: https://github.com/microsoft/DeepSpeed/pull/5346
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Signed-off-by: roger feng <roger.feng@intel.com>
Co-authored-by: Logan Adams <114770087+loadams@users.noreply.github.com>
Co-authored-by: Logan Adams <loadams@microsoft.com>
