File size: 7,099 Bytes
96bb363 | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 | """Tests for BatchSizeChange, BatchSizeSchedule, and BatchSizeScheduleController."""
from __future__ import annotations
from fractions import Fraction
from unittest.mock import MagicMock
import pytest
from openg2g.controller.batch_size_schedule import BatchSizeChange, BatchSizeSchedule, BatchSizeScheduleController
from openg2g.datacenter.command import SetBatchSize
class TestBatchSizeChange:
def test_basic_construction(self) -> None:
c = BatchSizeChange(batch_size=64)
assert c.batch_size == 64
assert c.ramp_up_rate == 0.0
def test_with_ramp(self) -> None:
c = BatchSizeChange(batch_size=32, ramp_up_rate=4.0)
assert c.batch_size == 32
assert c.ramp_up_rate == 4.0
def test_invalid_batch_size(self) -> None:
with pytest.raises(ValueError, match="batch_size must be positive"):
BatchSizeChange(batch_size=0)
with pytest.raises(ValueError, match="batch_size must be positive"):
BatchSizeChange(batch_size=-1)
def test_invalid_ramp_up_rate(self) -> None:
with pytest.raises(ValueError, match="ramp_up_rate must be >= 0"):
BatchSizeChange(batch_size=32, ramp_up_rate=-1.0)
def test_at_creates_schedule(self) -> None:
s = BatchSizeChange(48).at(40.0)
assert isinstance(s, BatchSizeSchedule)
assert len(s) == 1
entries = list(s)
assert entries[0][0] == 40.0
assert entries[0][1].batch_size == 48
class TestBatchSizeSchedule:
def test_pipe_composition(self) -> None:
s = BatchSizeChange(48).at(40) | BatchSizeChange(32).at(60) | BatchSizeChange(64).at(80)
assert len(s) == 3
entries = list(s)
assert entries[0][0] == 40
assert entries[1][0] == 60
assert entries[2][0] == 80
def test_sorted_by_time(self) -> None:
s = BatchSizeChange(32).at(60) | BatchSizeChange(48).at(40)
entries = list(s)
assert entries[0][0] == 40
assert entries[1][0] == 60
def test_bool(self) -> None:
assert bool(BatchSizeChange(32).at(0))
assert not bool(BatchSizeSchedule(()))
def test_repr(self) -> None:
s = BatchSizeChange(48).at(40) | BatchSizeChange(32, ramp_up_rate=4).at(60)
r = repr(s)
assert "BatchSizeChange(48)" in r
assert "ramp_up_rate=4" in r
def test_duplicate_timestamps_raises(self) -> None:
with pytest.raises(ValueError, match="duplicate timestamps"):
BatchSizeChange(48).at(40) | BatchSizeChange(32).at(40)
def test_duplicate_timestamps_three_entries(self) -> None:
with pytest.raises(ValueError, match="duplicate timestamps"):
BatchSizeChange(48).at(40) | BatchSizeChange(32).at(60) | BatchSizeChange(64).at(40)
def test_duplicate_timestamps_direct_construction(self) -> None:
with pytest.raises(ValueError, match="duplicate timestamps"):
BatchSizeSchedule(((40.0, BatchSizeChange(48)), (40.0, BatchSizeChange(32))))
class TestBatchSizeScheduleController:
def _make_clock(self, time_s: float) -> MagicMock:
clock = MagicMock()
clock.time_s = time_s
return clock
def test_emits_at_scheduled_time(self) -> None:
schedule = BatchSizeChange(48).at(10) | BatchSizeChange(32).at(20)
ctrl = BatchSizeScheduleController(
schedules={"model-a": schedule},
dt_s=Fraction(1),
)
dc = MagicMock()
grid = MagicMock()
events = MagicMock()
# Before first event
action = ctrl.step(self._make_clock(5.0), dc, grid, events)
assert len(action) == 0
# At first event
action = ctrl.step(self._make_clock(10.0), dc, grid, events)
assert len(action) == 1
cmd = action[0]
assert isinstance(cmd, SetBatchSize)
assert cmd.batch_size_by_model["model-a"] == 48
# Between events
action = ctrl.step(self._make_clock(15.0), dc, grid, events)
assert len(action) == 0
# At second event
action = ctrl.step(self._make_clock(20.0), dc, grid, events)
assert len(action) == 1
assert isinstance(action[0], SetBatchSize)
assert action[0].batch_size_by_model["model-a"] == 32
def test_multiple_models(self) -> None:
schedules = {
"model-a": BatchSizeChange(48).at(10),
"model-b": BatchSizeChange(64).at(10),
}
ctrl = BatchSizeScheduleController(schedules=schedules, dt_s=Fraction(1))
dc = MagicMock()
grid = MagicMock()
events = MagicMock()
action = ctrl.step(self._make_clock(10.0), dc, grid, events)
assert len(action) == 1
cmd = action[0]
assert isinstance(cmd, SetBatchSize)
assert cmd.batch_size_by_model["model-a"] == 48
assert cmd.batch_size_by_model["model-b"] == 64
def test_ramp_up_rate_per_model(self) -> None:
schedule = BatchSizeChange(32, ramp_up_rate=4.0).at(10)
ctrl = BatchSizeScheduleController(
schedules={"model-a": schedule},
dt_s=Fraction(1),
)
dc = MagicMock()
grid = MagicMock()
events = MagicMock()
action = ctrl.step(self._make_clock(10.0), dc, grid, events)
cmd = action[0]
assert isinstance(cmd, SetBatchSize)
assert cmd.ramp_up_rate_by_model == {"model-a": 4.0}
def test_no_ramp_up_rate_when_zero(self) -> None:
schedule = BatchSizeChange(32).at(10)
ctrl = BatchSizeScheduleController(
schedules={"model-a": schedule},
dt_s=Fraction(1),
)
dc = MagicMock()
grid = MagicMock()
events = MagicMock()
action = ctrl.step(self._make_clock(10.0), dc, grid, events)
cmd = action[0]
assert isinstance(cmd, SetBatchSize)
assert cmd.ramp_up_rate_by_model == {}
def test_mixed_ramp_rates_per_model(self) -> None:
schedules = {
"model-a": BatchSizeChange(32, ramp_up_rate=4.0).at(10),
"model-b": BatchSizeChange(64, ramp_up_rate=8.0).at(10),
"model-c": BatchSizeChange(128).at(10),
}
ctrl = BatchSizeScheduleController(schedules=schedules, dt_s=Fraction(1))
dc = MagicMock()
grid = MagicMock()
events = MagicMock()
action = ctrl.step(self._make_clock(10.0), dc, grid, events)
cmd = action[0]
assert isinstance(cmd, SetBatchSize)
assert cmd.ramp_up_rate_by_model == {"model-a": 4.0, "model-b": 8.0}
assert "model-c" not in cmd.ramp_up_rate_by_model
def test_dt_s(self) -> None:
ctrl = BatchSizeScheduleController(schedules={}, dt_s=Fraction(2))
assert ctrl.dt_s == Fraction(2)
def test_empty_schedule(self) -> None:
ctrl = BatchSizeScheduleController(schedules={}, dt_s=Fraction(1))
dc = MagicMock()
grid = MagicMock()
events = MagicMock()
action = ctrl.step(self._make_clock(100.0), dc, grid, events)
assert len(action) == 0
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