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Only call Init Distributed if required #734

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Merged
jeffra merged 3 commits into from
Feb 11, 2021
Merged

Only call Init Distributed if required #734

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44679a9
Only initialize distributed if required
Feb 8, 2021
d99f3e3
Merge branch 'master' into fix/init_dist
jeffra Feb 10, 2021
83e5af1
Merge branch 'master' into fix/init_dist
jeffra Feb 11, 2021
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8 changes: 4 additions & 4 deletions deepspeed/runtime/engine.py
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Original file line number Diff line number Diff line change
Expand Up @@ -131,10 +131,10 @@ def __init__(self,
dist_init_required = not dist.is_initialized()

if dist_init_required is False:
assert (dist.is_initialized()==True), "Torch distributed not initialized. Please set dist_init_required to True or initialize before calling deepspeed.initialize()"

# Initialize torch distributed if needed
init_distributed(dist_backend=self.dist_backend)
assert dist.is_initialized() is True, "Torch distributed not initialized. Please set dist_init_required to True or initialize before calling deepspeed.initialize()"
else:
# Initialize torch distributed if needed
init_distributed(dist_backend=self.dist_backend)

self._do_args_sanity_check(args)
self._configure_with_arguments(args, mpu)
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