69 lines
2.4 KiB
Python
69 lines
2.4 KiB
Python
import ctypes as ct
|
|
from pathlib import Path
|
|
from warnings import warn
|
|
|
|
|
|
|
|
class CUDASetup(object):
|
|
_instance = None
|
|
|
|
def __init__(self):
|
|
raise RuntimeError("Call get_instance() instead")
|
|
|
|
def initialize(self):
|
|
self.cuda_setup_log = []
|
|
|
|
from .cuda_setup.main import evaluate_cuda_setup
|
|
binary_name = evaluate_cuda_setup()
|
|
package_dir = Path(__file__).parent
|
|
binary_path = package_dir / binary_name
|
|
|
|
try:
|
|
if not binary_path.exists():
|
|
self.add_log_entry(f"CUDA SETUP: TODO: compile library for specific version: {binary_name}")
|
|
legacy_binary_name = "libbitsandbytes.so"
|
|
self.add_log_entry(f"CUDA SETUP: Defaulting to {legacy_binary_name}...")
|
|
binary_path = package_dir / legacy_binary_name
|
|
if not binary_path.exists():
|
|
self.add_log_entry('CUDA SETUP: CUDA detection failed. Either CUDA driver not installed, CUDA not installed, or you have multiple conflicting CUDA libraries!')
|
|
self.add_log_entry('CUDA SETUP: If you compiled from source, try again with `make CUDA_VERSION=DETECTED_CUDA_VERSION` for example, `make CUDA_VERSION=113`.')
|
|
self.print_log_stack()
|
|
raise Exception('CUDA SETUP: Setup Failed!')
|
|
self.lib = ct.cdll.LoadLibrary(binary_path)
|
|
else:
|
|
self.add_log_entry(f"CUDA SETUP: Loading binary {binary_path}...")
|
|
self.lib = ct.cdll.LoadLibrary(binary_path)
|
|
except:
|
|
self.print_log_stack()
|
|
|
|
def add_log_entry(self, msg, is_warning=False):
|
|
self.cuda_setup_log.append((msg, is_warning))
|
|
|
|
def print_log_stack(self):
|
|
for msg, is_warning in self.cuda_setup_log:
|
|
if is_warning:
|
|
warn(msg)
|
|
else:
|
|
print(msg)
|
|
|
|
@classmethod
|
|
def get_instance(cls):
|
|
if cls._instance is None:
|
|
cls._instance = cls.__new__(cls)
|
|
cls._instance.initialize()
|
|
return cls._instance
|
|
|
|
|
|
lib = CUDASetup.get_instance().lib
|
|
try:
|
|
lib.cadam32bit_g32
|
|
lib.get_context.restype = ct.c_void_p
|
|
lib.get_cusparse.restype = ct.c_void_p
|
|
COMPILED_WITH_CUDA = True
|
|
except AttributeError:
|
|
warn(
|
|
"The installed version of bitsandbytes was compiled without GPU support. "
|
|
"8-bit optimizers and GPU quantization are unavailable."
|
|
)
|
|
COMPILED_WITH_CUDA = False
|