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feat: add rdzv_conf to dist.ddp (#1071) #1072

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Merged
merged 1 commit into from
Jun 18, 2025
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feat: add rdzv_conf to dist.ddp (#1071) #1072

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6 changes: 3 additions & 3 deletions torchx/components/dist.py
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Original file line number Diff line number Diff line change
Expand Up @@ -132,9 +132,6 @@ def spmd(
j: {nnodes}x{nproc_per_node}. For GPU hosts omitting nproc_per_node will infer it from the GPU count on the host
env: environment variables to be passed to the run (e.g. ENV1=v1,ENV2=v2,ENV3=v3)
max_retries: the number of scheduler retries allowed
rdzv_port: the port on rank0's host to use for hosting the c10d store used for rendezvous.
Only takes effect when running multi-node. When running single node, this parameter
is ignored and a random free port is chosen.
mounts: (for docker based runs only) mounts to mount into the worker environment/container
(ex. type=<bind/volume>,src=/host,dst=/job[,readonly]).
debug: whether to run with preset debug flags enabled
Expand Down Expand Up @@ -174,6 +171,7 @@ def ddp(
max_retries: int = 0,
rdzv_port: int = 29500,
rdzv_backend: str = "c10d",
rdzv_conf: Optional[str] = None,
mounts: Optional[List[str]] = None,
debug: bool = False,
tee: int = 3,
Expand Down Expand Up @@ -208,6 +206,7 @@ def ddp(
Only takes effect when running multi-node. When running single node, this parameter
is ignored and a random free port is chosen.
rdzv_backend: the rendezvous backend to use. Only takes effect when running multi-node.
rdzv_conf: the additional rendezvous configuration to use (ex. join_timeout=600,close_timeout=600,timeout=600).
mounts: mounts to mount into the worker environment/container (ex. type=<bind/volume>,src=/host,dst=/job[,readonly]).
See scheduler documentation for more info.
debug: whether to run with preset debug flags enabled
Expand Down Expand Up @@ -258,6 +257,7 @@ def ddp(
"torchrun",
"--rdzv_backend",
rdzv_backend,
*(["--rdzv_conf", rdzv_conf] if rdzv_conf is not None else []),
"--rdzv_endpoint",
rdzv_endpoint,
"--rdzv_id",
Expand Down
4 changes: 3 additions & 1 deletion torchx/components/test/dist_test.py
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Original file line number Diff line number Diff line change
Expand Up @@ -41,8 +41,10 @@ def test_ddp_debug(self) -> None:
self.assertEqual(env[k], v)

def test_ddp_rdzv_backend_static(self) -> None:
app = ddp(script="foo.py", rdzv_backend="static")
rdzv_conf = "join_timeout=600,close_timeout=600,timeout=600"
app = ddp(script="foo.py", rdzv_backend="static", rdzv_conf=rdzv_conf)
cmd = app.roles[0].args[1]
self.assertTrue(f"--rdzv_conf {rdzv_conf}" in cmd)
self.assertTrue("--rdzv_backend static" in cmd)
self.assertTrue("--node_rank" in cmd)

Expand Down
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