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zero.Init() clarification #880

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Merged
tjruwase merged 7 commits into from
Apr 1, 2021
Merged

zero.Init() clarification #880

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bd9c781
zero.Init() clarification
stas00 Mar 19, 2021
c022275
style
stas00 Mar 19, 2021
4006090
add clarity
stas00 Mar 19, 2021
cdc439c
style
stas00 Mar 19, 2021
175ec79
Merge branch 'master' into patch-2
tjruwase Mar 27, 2021
441a95c
Merge branch 'master' into patch-2
tjruwase Mar 27, 2021
9b035d8
Merge branch 'master' into patch-2
tjruwase Apr 1, 2021
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3 changes: 3 additions & 0 deletions deepspeed/runtime/zero/partition_parameters.py
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Expand Up @@ -279,6 +279,9 @@ def __init__(self,
For example, if a node has 1TB of memory and 8 GPUs, we could fit a trillion
parameter model with 4 nodes and 32 GPUs.

Important: If the fp16 weights of the model can't fit onto a single GPU memory
this feature must be used.

.. note::
Initializes ``torch.distributed`` if it has not already been done so.
See :meth:`deepseed.init_distributed` for more information.
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