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fix horovod.torch import error #608

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fix horovod.torch import error #608

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2 changes: 2 additions & 0 deletions smdebug/core/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -67,6 +67,8 @@ class FRAMEWORK(Enum):

try:
import horovod.torch as hvd
if not hvd._MPI_LIB_AVAILABLE:
raise ImportError("MPI lib is missing. Reinstall Horovod with HOROVOD_WITH_PYTORCH=1 to debug the build error.")

# This redundant import is necessary because horovod does not raise an ImportError if the library is not present
import torch # noqa
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