[pre-commit.ci] auto fixes from pre-commit.com hooks

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pre-commit-ci[bot] 2026-07-10 04:37:21 +00:00
commit 71cdb534b9
3 changed files with 149 additions and 84 deletions

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@ -16,9 +16,7 @@ from typing import List, Optional
import pytest
# --- Load unsloth/optimizers/gefenx.py standalone (no unsloth package import) ---
_MODULE_PATH = (
pathlib.Path(__file__).resolve().parents[2] / "unsloth" / "optimizers" / "gefenx.py"
)
_MODULE_PATH = pathlib.Path(__file__).resolve().parents[2] / "unsloth" / "optimizers" / "gefenx.py"
_spec = importlib.util.spec_from_file_location("_unsloth_gefenx_under_test", _MODULE_PATH)
gefenx = importlib.util.module_from_spec(_spec)
_spec.loader.exec_module(gefenx)
@ -37,7 +35,7 @@ class _GefenXConfig:
capturable: bool = False
betas: Optional[tuple] = None
eps: Optional[float] = None
extra_kwargs: dict = field(default_factory=dict)
extra_kwargs: dict = field(default_factory = dict)
@dataclass
@ -64,13 +62,13 @@ class _GefenXMuonConfig:
backup_substrings: Optional[List[str]] = None
betas: Optional[tuple] = None
eps: Optional[float] = None
extra_kwargs: dict = field(default_factory=dict)
extra_kwargs: dict = field(default_factory = dict)
class _FakeParam:
"""Enough of an nn.Parameter for make_gefenx_param_groups / grouping."""
def __init__(self, requires_grad=True):
def __init__(self, requires_grad = True):
self.requires_grad = requires_grad
@ -93,7 +91,12 @@ def fake_gefen(monkeypatch):
# Mimic torch.optim.Optimizer.param_groups shape for downstream code.
self.param_groups = params
def _from_model(model, *, backup_substrings=None, **kwargs):
def _from_model(
model,
*,
backup_substrings = None,
**kwargs,
):
captured["muon"] = {
"model": model,
"backup_substrings": backup_substrings,
@ -124,7 +127,7 @@ def fake_gefen(monkeypatch):
("5", 5),
("6.0e-6", 6.0e-6),
("match_rms_adamw", "match_rms_adamw"),
(True, True), # non-strings pass through unchanged
(True, True), # non-strings pass through unchanged
(0.5, 0.5),
(None, None),
],
@ -141,10 +144,10 @@ def test_param_groups_single_group_without_embedding_lr():
[
("model.layers.0.self_attn.q_proj.weight", _FakeParam()),
("model.embed_tokens.modules_to_save.default.weight", _FakeParam()),
("model.layers.0.frozen.weight", _FakeParam(requires_grad=False)),
("model.layers.0.frozen.weight", _FakeParam(requires_grad = False)),
]
)
groups = gefenx.make_gefenx_param_groups(model, lr=1e-4, weight_decay=0.01)
groups = gefenx.make_gefenx_param_groups(model, lr = 1e-4, weight_decay = 0.01)
# No embedding_lr => one group; frozen params excluded.
assert len(groups) == 1
assert len(groups[0]["params"]) == 2
@ -159,9 +162,7 @@ def test_param_groups_splits_embedding_lr():
("model.embed_tokens.modules_to_save.default.weight", _FakeParam()),
]
)
groups = gefenx.make_gefenx_param_groups(
model, lr=1e-4, weight_decay=0.0, embedding_lr=5e-6
)
groups = gefenx.make_gefenx_param_groups(model, lr = 1e-4, weight_decay = 0.0, embedding_lr = 5e-6)
assert len(groups) == 2
non_embed, embed = groups
assert non_embed["lr"] == 1e-4 and len(non_embed["params"]) == 1
@ -173,10 +174,14 @@ def test_param_groups_splits_embedding_lr():
# --------------------------------------------------------------------------- #
def test_build_gefenx_forwards_config_and_falls_back_to_trainer_betas(fake_gefen):
model = _FakeModel([("w", _FakeParam())])
config = _GefenXConfig(fused=True, factored_v_2d=False, stochastic_round=True)
config = _GefenXConfig(fused = True, factored_v_2d = False, stochastic_round = True)
opt = gefenx.build_gefenx_optimizer(
model, config, lr=1e-4, weight_decay=0.01,
betas=(0.9, 0.95), eps=1e-8,
model,
config,
lr = 1e-4,
weight_decay = 0.01,
betas = (0.9, 0.95),
eps = 1e-8,
)
kw = fake_gefen["gefen"]["kwargs"]
assert kw["fused"] is True
@ -195,28 +200,36 @@ def test_extra_kwargs_reserved_keys_are_dropped(fake_gefen):
# are dropped from extra_kwargs with a warning; non-reserved keys pass through.
model = _FakeModel([("w", _FakeParam())])
config = _GefenXConfig(
extra_kwargs={"lr": 9.9, "weight_decay": 9.9, "codebook_refresh_every": "50"}
extra_kwargs = {"lr": 9.9, "weight_decay": 9.9, "codebook_refresh_every": "50"}
)
with pytest.warns(UserWarning, match="reserved key"):
with pytest.warns(UserWarning, match = "reserved key"):
gefenx.build_gefenx_optimizer(
model, config, lr=1e-4, weight_decay=0.01,
betas=(0.9, 0.999), eps=1e-8,
model,
config,
lr = 1e-4,
weight_decay = 0.01,
betas = (0.9, 0.999),
eps = 1e-8,
)
kw = fake_gefen["gefen"]["kwargs"]
# Build succeeds (no duplicate-keyword TypeError) and the reserved extra_kwargs
# values did NOT override the real builder args (9.9 dropped, 1e-4 / 0.01 win).
assert kw["lr"] == 1e-4
assert kw["weight_decay"] == 0.01
assert kw["codebook_refresh_every"] == 50 # allowed key -> coerced
assert kw["codebook_refresh_every"] == 50 # allowed key -> coerced
def test_muon_extra_kwargs_reserved_backup_substrings_dropped(fake_gefen):
model = _FakeModel([("w", _FakeParam())])
config = _GefenXMuonConfig(extra_kwargs={"backup_substrings": ["x"], "ns_steps": "7"})
with pytest.warns(UserWarning, match="reserved key"):
config = _GefenXMuonConfig(extra_kwargs = {"backup_substrings": ["x"], "ns_steps": "7"})
with pytest.warns(UserWarning, match = "reserved key"):
gefenx.build_gefenx_muon_optimizer(
model, config, lr=1e-4, weight_decay=0.0,
betas=(0.9, 0.999), eps=1e-8,
model,
config,
lr = 1e-4,
weight_decay = 0.0,
betas = (0.9, 0.999),
eps = 1e-8,
)
kw = fake_gefen["muon"]["kwargs"]
# backup_substrings is passed as an explicit arg, not via **kwargs.
@ -228,12 +241,18 @@ def test_muon_extra_kwargs_reserved_backup_substrings_dropped(fake_gefen):
def test_build_gefenx_config_betas_override_and_extra_kwargs(fake_gefen):
model = _FakeModel([("w", _FakeParam())])
config = _GefenXConfig(
betas=(0.8, 0.9), eps=1e-6,
period_one_substrings=("embed", "lm_head"),
extra_kwargs={"codebook_refresh_every": "100"}, # string coerced to int
betas = (0.8, 0.9),
eps = 1e-6,
period_one_substrings = ("embed", "lm_head"),
extra_kwargs = {"codebook_refresh_every": "100"}, # string coerced to int
)
gefenx.build_gefenx_optimizer(
model, config, lr=1e-4, weight_decay=0.0, betas=(0.9, 0.999), eps=1e-8,
model,
config,
lr = 1e-4,
weight_decay = 0.0,
betas = (0.9, 0.999),
eps = 1e-8,
)
kw = fake_gefen["gefen"]["kwargs"]
assert kw["betas"] == (0.8, 0.9)
@ -249,7 +268,12 @@ def test_build_gefenx_muon_applies_recommended_recipe(fake_gefen):
model = _FakeModel([("w", _FakeParam())])
config = _GefenXMuonConfig() # defaults encode the recipe
opt = gefenx.build_gefenx_muon_optimizer(
model, config, lr=1e-4, weight_decay=0.0, betas=(0.9, 0.999), eps=1e-8,
model,
config,
lr = 1e-4,
weight_decay = 0.0,
betas = (0.9, 0.999),
eps = 1e-8,
)
assert opt == "MUON_OPTIMIZER"
call = fake_gefen["muon"]
@ -265,18 +289,28 @@ def test_build_gefenx_muon_applies_recommended_recipe(fake_gefen):
def test_build_gefenx_muon_explicit_backup_lr_wins(fake_gefen):
model = _FakeModel([("w", _FakeParam())])
config = _GefenXMuonConfig(backup_lr=3e-5, backup_lr_scale=0.5)
config = _GefenXMuonConfig(backup_lr = 3e-5, backup_lr_scale = 0.5)
gefenx.build_gefenx_muon_optimizer(
model, config, lr=1e-4, weight_decay=0.0, betas=(0.9, 0.999), eps=1e-8,
model,
config,
lr = 1e-4,
weight_decay = 0.0,
betas = (0.9, 0.999),
eps = 1e-8,
)
assert fake_gefen["muon"]["kwargs"]["backup_lr"] == 3e-5
def test_build_gefenx_muon_backup_lr_scale_none_leaves_backup_lr_unset(fake_gefen):
model = _FakeModel([("w", _FakeParam())])
config = _GefenXMuonConfig(backup_lr_scale=None)
config = _GefenXMuonConfig(backup_lr_scale = None)
gefenx.build_gefenx_muon_optimizer(
model, config, lr=1e-4, weight_decay=0.0, betas=(0.9, 0.999), eps=1e-8,
model,
config,
lr = 1e-4,
weight_decay = 0.0,
betas = (0.9, 0.999),
eps = 1e-8,
)
# No scale and no explicit backup_lr => gefen uses its own default (None).
assert fake_gefen["muon"]["kwargs"].get("backup_lr") is None
@ -284,9 +318,14 @@ def test_build_gefenx_muon_backup_lr_scale_none_leaves_backup_lr_unset(fake_gefe
def test_build_gefenx_muon_passes_lr_weight_decay_and_backup_substrings(fake_gefen):
model = _FakeModel([("w", _FakeParam())])
config = _GefenXMuonConfig(backup_substrings=["router", "gate"])
config = _GefenXMuonConfig(backup_substrings = ["router", "gate"])
gefenx.build_gefenx_muon_optimizer(
model, config, lr=2e-4, weight_decay=0.05, betas=(0.9, 0.999), eps=1e-8,
model,
config,
lr = 2e-4,
weight_decay = 0.05,
betas = (0.9, 0.999),
eps = 1e-8,
)
call = fake_gefen["muon"]
assert call["backup_substrings"] == ["router", "gate"]
@ -300,17 +339,25 @@ def test_build_gefenx_muon_passes_lr_weight_decay_and_backup_substrings(fake_gef
def test_gate_rejects_rocm_hip_build(fake_gefen, monkeypatch):
torch = pytest.importorskip("torch")
# Simulate an AMD/ROCm PyTorch build by tagging torch.version.hip.
monkeypatch.setattr(torch.version, "hip", "6.0.0", raising=False)
monkeypatch.setattr(torch.version, "hip", "6.0.0", raising = False)
model = _FakeModel([("w", _FakeParam())])
with pytest.raises(RuntimeError, match="ROCm|HIP|CUDA"):
with pytest.raises(RuntimeError, match = "ROCm|HIP|CUDA"):
gefenx.build_gefenx_optimizer(
model, _GefenXConfig(), lr=1e-4, weight_decay=0.0,
betas=(0.9, 0.999), eps=1e-8,
model,
_GefenXConfig(),
lr = 1e-4,
weight_decay = 0.0,
betas = (0.9, 0.999),
eps = 1e-8,
)
with pytest.raises(RuntimeError, match="ROCm|HIP|CUDA"):
with pytest.raises(RuntimeError, match = "ROCm|HIP|CUDA"):
gefenx.build_gefenx_muon_optimizer(
model, _GefenXMuonConfig(), lr=1e-4, weight_decay=0.0,
betas=(0.9, 0.999), eps=1e-8,
model,
_GefenXMuonConfig(),
lr = 1e-4,
weight_decay = 0.0,
betas = (0.9, 0.999),
eps = 1e-8,
)
# The gate fires before gefen is even imported/constructed.
assert "gefen" not in fake_gefen and "muon" not in fake_gefen
@ -319,7 +366,7 @@ def test_gate_rejects_rocm_hip_build(fake_gefen, monkeypatch):
def test_gate_allows_non_hip(monkeypatch):
torch = pytest.importorskip("torch")
# A normal (non-HIP) build must pass the gate without raising.
monkeypatch.setattr(torch.version, "hip", None, raising=False)
monkeypatch.setattr(torch.version, "hip", None, raising = False)
gefenx._require_nvidia_cuda() # should not raise
@ -344,7 +391,7 @@ def _cuda_available():
_CUDA = _cuda_available()
def _tiny_model(torch, device="cpu"):
def _tiny_model(torch, device = "cpu"):
# Embedding + 2D Linears + LayerNorm exercises all of gefen's routing buckets:
# 2D hidden weights (Muon half), embedding/1D norm/bias (Gefen backup half).
return torch.nn.Sequential(
@ -355,8 +402,12 @@ def _tiny_model(torch, device="cpu"):
).to(device)
def _forward_backward(torch, model, device="cpu"):
ids = torch.arange(4, device=device)
def _forward_backward(
torch,
model,
device = "cpu",
):
ids = torch.arange(4, device = device)
out = model[0](ids)
out = model[1](out)
out = model[2](out)
@ -376,8 +427,12 @@ def test_real_gefenx_updates_all_params_cpu():
model = _tiny_model(torch)
before = [p.detach().clone() for p in model.parameters()]
opt = gefenx.build_gefenx_optimizer(
model, _GefenXConfig(fused=False),
lr=1e-3, weight_decay=0.0, betas=(0.9, 0.999), eps=1e-8,
model,
_GefenXConfig(fused = False),
lr = 1e-3,
weight_decay = 0.0,
betas = (0.9, 0.999),
eps = 1e-8,
)
assert isinstance(opt, Gefen)
_forward_backward(torch, model)
@ -394,8 +449,12 @@ def test_real_gefenx_muon_updates_all_params_cpu():
model = _tiny_model(torch)
before = [p.detach().clone() for p in model.parameters()]
opt = gefenx.build_gefenx_muon_optimizer(
model, _GefenXMuonConfig(fused=False),
lr=1e-3, weight_decay=0.0, betas=(0.9, 0.999), eps=1e-8,
model,
_GefenXMuonConfig(fused = False),
lr = 1e-3,
weight_decay = 0.0,
betas = (0.9, 0.999),
eps = 1e-8,
)
assert isinstance(opt, GefenMuonHybrid)
_forward_backward(torch, model)
@ -404,16 +463,21 @@ def test_real_gefenx_muon_updates_all_params_cpu():
assert _num_changed(torch, before, model) == len(before)
@pytest.mark.skipif(not _CUDA, reason="requires NVIDIA CUDA for the fused gefen kernels")
@pytest.mark.skipif(not _CUDA, reason = "requires NVIDIA CUDA for the fused gefen kernels")
def test_real_gefenx_cuda_fused_updates_all_params():
import torch
pytest.importorskip("gefen")
model = _tiny_model(torch, "cuda")
before = [p.detach().clone() for p in model.parameters()]
opt = gefenx.build_gefenx_optimizer(
model, _GefenXConfig(fused=True),
lr=1e-3, weight_decay=0.0, betas=(0.9, 0.999), eps=1e-8,
model,
_GefenXConfig(fused = True),
lr = 1e-3,
weight_decay = 0.0,
betas = (0.9, 0.999),
eps = 1e-8,
)
_forward_backward(torch, model, "cuda")
opt.step()
@ -422,16 +486,21 @@ def test_real_gefenx_cuda_fused_updates_all_params():
assert _num_changed(torch, before, model) == len(before)
@pytest.mark.skipif(not _CUDA, reason="requires NVIDIA CUDA for the fused gefen kernels")
@pytest.mark.skipif(not _CUDA, reason = "requires NVIDIA CUDA for the fused gefen kernels")
def test_real_gefenx_muon_cuda_fused_updates_all_params():
import torch
pytest.importorskip("gefen")
model = _tiny_model(torch, "cuda")
before = [p.detach().clone() for p in model.parameters()]
opt = gefenx.build_gefenx_muon_optimizer(
model, _GefenXMuonConfig(fused=True),
lr=1e-3, weight_decay=0.0, betas=(0.9, 0.999), eps=1e-8,
model,
_GefenXMuonConfig(fused = True),
lr = 1e-3,
weight_decay = 0.0,
betas = (0.9, 0.999),
eps = 1e-8,
)
_forward_backward(torch, model, "cuda")
opt.step()
@ -454,9 +523,11 @@ def test_trainer_create_optimizer_dispatches_gefenx(tmp_path):
from gefen import Gefen
args = UnslothTrainingArguments(
output_dir=str(tmp_path / "gx"),
gefenx_config=GefenXConfig(fused=False),
learning_rate=1e-3, weight_decay=0.0, report_to="none",
output_dir = str(tmp_path / "gx"),
gefenx_config = GefenXConfig(fused = False),
learning_rate = 1e-3,
weight_decay = 0.0,
report_to = "none",
)
# Config plumbing on the real dataclass-typed argument.
assert args.gefenx_config is not None
@ -485,9 +556,11 @@ def test_trainer_create_optimizer_dispatches_gefenx_muon(tmp_path):
from gefen import GefenMuonHybrid
args = UnslothTrainingArguments(
output_dir=str(tmp_path / "gm"),
gefenx_muon_config=GefenXMuonConfig(fused=False),
learning_rate=1e-3, weight_decay=0.0, report_to="none",
output_dir = str(tmp_path / "gm"),
gefenx_muon_config = GefenXMuonConfig(fused = False),
learning_rate = 1e-3,
weight_decay = 0.0,
report_to = "none",
)
assert args.gefenx_muon_config is not None
@ -511,10 +584,10 @@ def test_conflicting_optimizer_configs_raise(tmp_path):
from unsloth.trainer import UnslothTrainingArguments
# Setting both Gefen-X configs is ambiguous (dispatch would silently pick one).
with pytest.raises(ValueError, match="mutually exclusive"):
with pytest.raises(ValueError, match = "mutually exclusive"):
UnslothTrainingArguments(
output_dir=str(tmp_path / "conflict"),
gefenx_config=GefenXConfig(),
gefenx_muon_config=GefenXMuonConfig(),
report_to="none",
output_dir = str(tmp_path / "conflict"),
gefenx_config = GefenXConfig(),
gefenx_muon_config = GefenXMuonConfig(),
report_to = "none",
)