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add option to force multi-node launcher mode #977

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Merged
jeffra merged 2 commits into from
Apr 20, 2021
+6 −1
Merged

add option to force multi-node launcher mode #977

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2ba97d1
add option to force multi-node launcher mode
jeffra Apr 19, 2021
9857676
Merge branch 'master' into jeffra/launcher-update
jeffra Apr 20, 2021
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7 changes: 6 additions & 1 deletion deepspeed/launcher/runner.py
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Original file line number Diff line number Diff line change
Expand Up @@ -104,6 +104,11 @@ def parse_args(args=None):
help="(optional) pass launcher specific arguments as a "
"single quoted argument.")

parser.add_argument("--force_multi",
action="store_true",
help="Force multi-node launcher mode, helps in cases where user "
"wants to launch on single remote node.")

parser.add_argument("user_script",
type=str,
help="User script to launch, followed by any required "
Expand Down Expand Up @@ -304,7 +309,7 @@ def main(args=None):
# encode world info as base64 to make it easier to pass via command line
world_info_base64 = encode_world_info(active_resources)

multi_node_exec = len(active_resources) > 1
multi_node_exec = args.force_multi or len(active_resources) > 1

if not multi_node_exec:
deepspeed_launch = [
Expand Down