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# SPDX-FileCopyrightText: Copyright 2022, Arm Limited and/or its affiliates.
# SPDX-License-Identifier: Apache-2.0
"""Tests for module tools/vela_wrapper."""
from pathlib import Path
from unittest.mock import MagicMock
import pytest
from ethosu.vela.compiler_driver import TensorAllocator
from ethosu.vela.scheduler import OptimizationStrategy
from mlia.devices.ethosu.config import EthosUConfiguration
from mlia.tools.vela_wrapper import estimate_performance
from mlia.tools.vela_wrapper import generate_supported_operators_report
from mlia.tools.vela_wrapper import NpuSupported
from mlia.tools.vela_wrapper import Operator
from mlia.tools.vela_wrapper import Operators
from mlia.tools.vela_wrapper import optimize_model
from mlia.tools.vela_wrapper import OptimizedModel
from mlia.tools.vela_wrapper import PerformanceMetrics
from mlia.tools.vela_wrapper import supported_operators
from mlia.tools.vela_wrapper import VelaCompiler
from mlia.tools.vela_wrapper import VelaCompilerOptions
from mlia.utils.proc import working_directory
def test_default_vela_compiler() -> None:
"""Test default Vela compiler instance."""
default_compiler_options = VelaCompilerOptions(accelerator_config="ethos-u55-256")
default_compiler = VelaCompiler(default_compiler_options)
assert default_compiler.config_files is None
assert default_compiler.system_config == "internal-default"
assert default_compiler.memory_mode == "internal-default"
assert default_compiler.accelerator_config == "ethos-u55-256"
assert default_compiler.max_block_dependency == 3
assert default_compiler.arena_cache_size is None
assert default_compiler.tensor_allocator == TensorAllocator.HillClimb
assert default_compiler.cpu_tensor_alignment == 16
assert default_compiler.optimization_strategy == OptimizationStrategy.Performance
assert default_compiler.output_dir is None
assert default_compiler.get_config() == {
"accelerator_config": "ethos-u55-256",
"system_config": "internal-default",
"core_clock": 500000000.0,
"axi0_port": "Sram",
"axi1_port": "OffChipFlash",
"memory_mode": "internal-default",
"const_mem_area": "Axi1",
"arena_mem_area": "Axi0",
"cache_mem_area": "Axi0",
"arena_cache_size": 4294967296,
"permanent_storage_mem_area": "OffChipFlash",
"feature_map_storage_mem_area": "Sram",
"fast_storage_mem_area": "Sram",
"memory_area": {
"Sram": {
"clock_scales": 1.0,
"burst_length": 32,
"read_latency": 32,
"write_latency": 32,
},
"Dram": {
"clock_scales": 1.0,
"burst_length": 1,
"read_latency": 0,
"write_latency": 0,
},
"OnChipFlash": {
"clock_scales": 1.0,
"burst_length": 1,
"read_latency": 0,
"write_latency": 0,
},
"OffChipFlash": {
"clock_scales": 0.125,
"burst_length": 128,
"read_latency": 64,
"write_latency": 64,
},
},
}
def test_vela_compiler_with_parameters(test_resources_path: Path) -> None:
"""Test creation of Vela compiler instance with non-default params."""
vela_ini_path = str(test_resources_path / "vela/sample_vela.ini")
compiler_options = VelaCompilerOptions(
config_files=vela_ini_path,
system_config="Ethos_U65_High_End",
memory_mode="Shared_Sram",
accelerator_config="ethos-u65-256",
max_block_dependency=1,
arena_cache_size=10,
tensor_allocator="Greedy",
cpu_tensor_alignment=4,
optimization_strategy="Size",
output_dir="output",
)
compiler = VelaCompiler(compiler_options)
assert compiler.config_files == vela_ini_path
assert compiler.system_config == "Ethos_U65_High_End"
assert compiler.memory_mode == "Shared_Sram"
assert compiler.accelerator_config == "ethos-u65-256"
assert compiler.max_block_dependency == 1
assert compiler.arena_cache_size == 10
assert compiler.tensor_allocator == TensorAllocator.Greedy
assert compiler.cpu_tensor_alignment == 4
assert compiler.optimization_strategy == OptimizationStrategy.Size
assert compiler.output_dir == "output"
assert compiler.get_config() == {
"accelerator_config": "ethos-u65-256",
"system_config": "Ethos_U65_High_End",
"core_clock": 1000000000.0,
"axi0_port": "Sram",
"axi1_port": "Dram",
"memory_mode": "Shared_Sram",
"const_mem_area": "Axi1",
"arena_mem_area": "Axi0",
"cache_mem_area": "Axi0",
"arena_cache_size": 10,
"permanent_storage_mem_area": "Dram",
"feature_map_storage_mem_area": "Sram",
"fast_storage_mem_area": "Sram",
"memory_area": {
"Sram": {
"clock_scales": 1.0,
"burst_length": 32,
"read_latency": 32,
"write_latency": 32,
},
"Dram": {
"clock_scales": 0.234375,
"burst_length": 128,
"read_latency": 500,
"write_latency": 250,
},
"OnChipFlash": {
"clock_scales": 1.0,
"burst_length": 1,
"read_latency": 0,
"write_latency": 0,
},
"OffChipFlash": {
"clock_scales": 1.0,
"burst_length": 1,
"read_latency": 0,
"write_latency": 0,
},
},
}
def test_compile_model(test_tflite_model: Path) -> None:
"""Test model optimization."""
compiler = VelaCompiler(EthosUConfiguration("ethos-u55-256").compiler_options)
optimized_model = compiler.compile_model(test_tflite_model)
assert isinstance(optimized_model, OptimizedModel)
def test_optimize_model(tmp_path: Path, test_tflite_model: Path) -> None:
"""Test model optimization and saving into file."""
tmp_file = tmp_path / "temp.tflite"
device = EthosUConfiguration("ethos-u55-256")
optimize_model(test_tflite_model, device.compiler_options, tmp_file.absolute())
assert tmp_file.is_file()
assert tmp_file.stat().st_size > 0
@pytest.mark.parametrize(
"model, expected_ops",
[
(
"test_model.tflite",
Operators(
ops=[
Operator(
name="sequential/conv1/Relu;sequential/conv1/BiasAdd;"
"sequential/conv2/Conv2D;sequential/conv1/Conv2D",
op_type="CONV_2D",
run_on_npu=NpuSupported(supported=True, reasons=[]),
),
Operator(
name="sequential/conv2/Relu;sequential/conv2/BiasAdd;"
"sequential/conv2/Conv2D",
op_type="CONV_2D",
run_on_npu=NpuSupported(supported=True, reasons=[]),
),
Operator(
name="sequential/max_pooling2d/MaxPool",
op_type="MAX_POOL_2D",
run_on_npu=NpuSupported(supported=True, reasons=[]),
),
Operator(
name="sequential/flatten/Reshape",
op_type="RESHAPE",
run_on_npu=NpuSupported(supported=True, reasons=[]),
),
Operator(
name="Identity",
op_type="FULLY_CONNECTED",
run_on_npu=NpuSupported(supported=True, reasons=[]),
),
]
),
)
],
)
def test_operators(test_models_path: Path, model: str, expected_ops: Operators) -> None:
"""Test operators function."""
device = EthosUConfiguration("ethos-u55-256")
operators = supported_operators(test_models_path / model, device.compiler_options)
for expected, actual in zip(expected_ops.ops, operators.ops):
# do not compare names as they could be different on each model generation
assert expected.op_type == actual.op_type
assert expected.run_on_npu == actual.run_on_npu
def test_estimate_performance(test_tflite_model: Path) -> None:
"""Test getting performance estimations."""
device = EthosUConfiguration("ethos-u55-256")
perf_metrics = estimate_performance(test_tflite_model, device.compiler_options)
assert isinstance(perf_metrics, PerformanceMetrics)
def test_estimate_performance_already_optimized(
tmp_path: Path, test_tflite_model: Path
) -> None:
"""Test that performance estimation should fail for already optimized model."""
device = EthosUConfiguration("ethos-u55-256")
optimized_model_path = tmp_path / "optimized_model.tflite"
optimize_model(test_tflite_model, device.compiler_options, optimized_model_path)
with pytest.raises(
Exception, match="Unable to estimate performance for the given optimized model"
):
estimate_performance(optimized_model_path, device.compiler_options)
def test_generate_supported_operators_report(tmp_path: Path) -> None:
"""Test generating supported operators report."""
with working_directory(tmp_path):
generate_supported_operators_report()
md_file = tmp_path / "SUPPORTED_OPS.md"
assert md_file.is_file()
assert md_file.stat().st_size > 0
def test_read_invalid_model(test_tflite_invalid_model: Path) -> None:
"""Test that reading invalid model should fail with exception."""
with pytest.raises(
Exception, match=f"Unable to read model {test_tflite_invalid_model}"
):
device = EthosUConfiguration("ethos-u55-256")
estimate_performance(test_tflite_invalid_model, device.compiler_options)
def test_compile_invalid_model(
test_tflite_model: Path, monkeypatch: pytest.MonkeyPatch, tmp_path: Path
) -> None:
"""Test that if model could not be compiled then correct exception raised."""
mock_compiler = MagicMock()
mock_compiler.side_effect = Exception("Bad model!")
monkeypatch.setattr("mlia.tools.vela_wrapper.compiler_driver", mock_compiler)
model_path = tmp_path / "optimized_model.tflite"
with pytest.raises(
Exception, match="Model could not be optimized with Vela compiler"
):
device = EthosUConfiguration("ethos-u55-256")
optimize_model(test_tflite_model, device.compiler_options, model_path)
assert not model_path.exists()
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