openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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import os
import glob
Import('env', 'envCython', 'arch', 'cereal', 'messaging', 'common', 'gpucommon', 'visionipc', 'transformations')
lenv = env.Clone()
lenvCython = envCython.Clone()
libs = [cereal, messaging, visionipc, gpucommon, common, 'capnp', 'kj', 'pthread']
frameworks = []
common_src = [
"models/commonmodel.cc",
"transforms/loadyuv.cc",
"transforms/transform.cc",
]
if arch == "Darwin":
# OpenCL is a framework on Mac
frameworks += ['OpenCL']
# Fix for "Error: $HOME must be set to run brew"
lenv['ENV']['HOME'] = os.environ['HOME']
else:
libs += ['OpenCL']
# Set path definitions
for pathdef, fn in {'TRANSFORM': 'transforms/transform.cl', 'LOADYUV': 'transforms/loadyuv.cl'}.items():
for xenv in (lenv, lenvCython):
xenv['CXXFLAGS'].append(f'-D{pathdef}_PATH=\\"{File(fn).abspath}\\"')
# Compile cython
cython_libs = envCython["LIBS"] + libs
commonmodel_lib = lenv.Library('commonmodel', common_src)
lenvCython.Program('models/commonmodel_pyx.so', 'models/commonmodel_pyx.pyx', LIBS=[commonmodel_lib, *cython_libs], FRAMEWORKS=frameworks)
tinygrad_files = ["#"+x for x in glob.glob(env.Dir("#tinygrad_repo").relpath + "/**", recursive=True, root_dir=env.Dir("#").abspath) if 'pycache' not in x]
# Get model metadata
for model_name in ['driving_vision', 'driving_policy']:
fn = File(f"models/{model_name}").abspath
script_files = [File(Dir("#selfdrive/modeld").File("get_model_metadata.py").abspath)]
cmd = f'python3 {Dir("#selfdrive/modeld").abspath}/get_model_metadata.py {fn}.onnx'
lenv.Command(fn + "_metadata.pkl", [fn + ".onnx"] + tinygrad_files + script_files, cmd)
def tg_compile(flags, model_name):
pythonpath_string = 'PYTHONPATH="${PYTHONPATH}:' + env.Dir("#tinygrad_repo").abspath + '"'
fn = File(f"models/{model_name}").abspath
return lenv.Command(
fn + "_tinygrad.pkl",
[fn + ".onnx"] + tinygrad_files,
f'{pythonpath_string} {flags} python3 {Dir("#tinygrad_repo").abspath}/examples/openpilot/compile3.py {fn}.onnx {fn}_tinygrad.pkl'
)
def tg_dump_flags(flags, prefix):
flags_dict = {}
for flag_pair in flags.split():
k, v = flag_pair.split('=')
flags_dict[k] = v
import json
with open(f'models/{prefix}_flags.json', 'w') as f:
json.dump(flags_dict, f)
import subprocess
# because tg doesn't support multi-process
devs = subprocess.check_output('python3 -c "from tinygrad import Device; print(list(Device.get_available_devices()))"', shell=True)
print("Available tinygrad devices:", devs)
if b"QCOM" in devs:
flags = 'QCOM=1'
elif b"METAL" in devs:
flags = 'METAL=1 IMAGE=0 NOLOCALS=0'
elif b"CUDA" in devs:
flags = 'CUDA=1 IMAGE=0'
elif b"GPU" in devs:
flags = 'GPU=1'
elif b"LLVM" in devs:
flags = 'LLVM=1 LLVMOPT=1 BEAM=0 IMAGE=0 JIT=2'
else:
flags = 'CPU=1 IMAGE=0 JIT=2'
# Compile small models
for model_name in ['driving_vision', 'driving_policy', 'dmonitoring_model']:
tg_compile(flags, model_name)
tg_dump_flags(flags, 'dmonitoringmodeld')
# Compile BIG model if USB GPU is available
if b"AMD" in devs:
print("USB GPU detected... building")
flags = "AMD=1 AMD_IFACE=USB AMD_LLVM=1 NOLOCALS=0 IMAGE=0"
bp = tg_compile(flags, "big_driving_policy")
bv = tg_compile(flags, "big_driving_vision")
lenv.SideEffect('lock', [bp, bv]) # tg doesn't support multi-process so build serially
else:
print("USB GPU not detected... skipping")
tg_dump_flags(flags, 'modeld')