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9f818c5 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 | # SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: OpenMDW-1.1
import json
from pathlib import Path
import omegaconf
import pydantic
import pytest
from typing_extensions import TYPE_CHECKING
from cosmos_framework.inference.args import (
DEFAULT_CHECKPOINT_NAME,
MODEL_MEMORY_BYTES_BY_SIZE,
ModelMode,
OmniSampleOverrides,
OmniSetupOverrides,
)
from cosmos_framework.inference.common.config import structure_config
if TYPE_CHECKING:
from cosmos_framework.model.vfm.omni_mot_model import OmniMoTModel
_H100_MEMORY_BYTES = 80 * 1024**3
# Reserved for future use (paired with the reserved memory-based `_get_dp_shard_size`
# heuristic in args.py); not currently exercised.
_GB200_MEMORY_BYTES = 192 * 1024**3
def test_build_parallelism(monkeypatch: pytest.MonkeyPatch):
parallelism_args = OmniSetupOverrides(
checkpoint_path=DEFAULT_CHECKPOINT_NAME,
output_dir="outputs",
model_memory_bytes=MODEL_MEMORY_BYTES_BY_SIZE["8B"],
parallelism_preset="latency",
).build_parallelism(world_size=16, device_memory_bytes=_H100_MEMORY_BYTES)
assert parallelism_args.dp_shard_size == 16
assert parallelism_args.dp_replicate_size == 1
assert parallelism_args.cp_size == 8
assert parallelism_args.cfgp_size == 2
parallelism_args = OmniSetupOverrides(
checkpoint_path=DEFAULT_CHECKPOINT_NAME,
output_dir="outputs",
model_memory_bytes=MODEL_MEMORY_BYTES_BY_SIZE["8B"],
parallelism_preset="throughput",
).build_parallelism(world_size=16, device_memory_bytes=_H100_MEMORY_BYTES)
assert parallelism_args.dp_shard_size == 16
assert parallelism_args.dp_replicate_size == 1
assert parallelism_args.cp_size == 1
assert parallelism_args.cfgp_size == 1
parallelism_args = OmniSetupOverrides(
checkpoint_path=DEFAULT_CHECKPOINT_NAME,
output_dir="outputs",
model_memory_bytes=MODEL_MEMORY_BYTES_BY_SIZE["32B"],
parallelism_preset="latency",
).build_parallelism(world_size=16, device_memory_bytes=_H100_MEMORY_BYTES)
assert parallelism_args.dp_shard_size == 16
assert parallelism_args.dp_replicate_size == 1
assert parallelism_args.cp_size == 8
assert parallelism_args.cfgp_size == 2
parallelism_args = OmniSetupOverrides(
checkpoint_path=DEFAULT_CHECKPOINT_NAME,
output_dir="outputs",
model_memory_bytes=MODEL_MEMORY_BYTES_BY_SIZE["32B"],
parallelism_preset="throughput",
).build_parallelism(world_size=16, device_memory_bytes=_H100_MEMORY_BYTES)
assert parallelism_args.dp_shard_size == 16
assert parallelism_args.dp_replicate_size == 1
assert parallelism_args.cp_size == 1
assert parallelism_args.cfgp_size == 1
parallelism_args = OmniSetupOverrides(
checkpoint_path=DEFAULT_CHECKPOINT_NAME,
output_dir="outputs",
model_memory_bytes=MODEL_MEMORY_BYTES_BY_SIZE["32B"],
parallelism_preset="latency",
).build_parallelism(world_size=0, device_memory_bytes=_H100_MEMORY_BYTES)
assert parallelism_args.dp_shard_size == 1
assert parallelism_args.dp_replicate_size == 1
assert parallelism_args.cp_size == 1
assert parallelism_args.cfgp_size == 1
parallelism_args = OmniSetupOverrides(
checkpoint_path=DEFAULT_CHECKPOINT_NAME,
output_dir="outputs",
model_memory_bytes=MODEL_MEMORY_BYTES_BY_SIZE["8B"],
parallelism_preset="latency",
compile_dynamic=False,
).build_parallelism(world_size=16, device_memory_bytes=_H100_MEMORY_BYTES)
assert parallelism_args.compile_dynamic is False
def test_checkpoints():
for name, ckpt in OmniSetupOverrides.CHECKPOINTS.items():
assert ckpt.hf.repository.split("/")[0] == "nvidia"
# Download a file to ensure that the repository/revision is valid.
# (The published checkpoint.json no longer encodes the source S3 URI —
# it is empty for most checkpoints and a stale local path for the rest —
# so we only validate that the repo/revision resolves and parses.)
ckpt_hf = ckpt.hf.model_copy(update=dict(include=("checkpoint.json",)))
json.loads((Path(ckpt_hf.download()) / "checkpoint.json").read_text())
def test_setup_args(tmp_path: Path):
overrides = OmniSetupOverrides(
checkpoint_path=DEFAULT_CHECKPOINT_NAME,
output_dir=tmp_path / "outputs",
)
args = overrides.build_setup()
def check_model_equal(actual: pydantic.BaseModel, expected: pydantic.BaseModel):
# Check json first, since the pytest failure diff is more readable.
assert actual.model_dump() == expected.model_dump()
assert actual == expected
# Check idempotent
check_model_equal(overrides.build_setup(), args)
check_model_equal(OmniSetupOverrides.model_validate(args.model_dump()).build_setup(), args)
def test_sample_args(tmp_path: Path):
setup_args = OmniSetupOverrides(
checkpoint_path=DEFAULT_CHECKPOINT_NAME,
output_dir=tmp_path / "outputs",
).build_setup()
model_dict: "OmniMoTModel" = structure_config(
setup_args.load_model_config_dict(),
omegaconf.DictConfig,
)
# Check that all fields are optional
for name, field in OmniSampleOverrides.model_fields.items():
assert field.default is None, name
overrides = OmniSampleOverrides(
name="test",
)
overrides.output_dir = tmp_path / "inputs"
args = overrides.build_sample(model_config=model_dict.config)
# Check idempotent
assert overrides.build_sample(model_config=model_dict.config) == args
overrides_dump = {k: v for k, v in args.model_dump().items() if k in OmniSampleOverrides.model_fields}
assert OmniSampleOverrides.model_validate(overrides_dump).build_sample(model_config=model_dict.config) == args
text2image_args = OmniSampleOverrides(
name="text2image",
output_dir=tmp_path / "text2image",
model_mode=ModelMode.TEXT2IMAGE,
).build_sample(model_config=model_dict.config)
assert text2image_args.aspect_ratio == "1,1"
assert text2image_args.num_steps == 50
assert text2image_args.guidance == 4.0
assert text2image_args.shift == 3.0
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