运行时上下文模块，定义于 InfiniCore/python/infinicore/context.py，提供设备管理、流同步等运行时功能。
get_device()：获取当前活跃设备。get_device_count(device_type)：获取指定类型的设备数量。set_device(device)：设置当前活跃设备。sync_stream()：同步当前流。sync_device()：同步当前设备。get_stream()：获取当前流。
def get_device() -> device:
"""Get the current active device.
Returns:
device: The current active device object
"""
def get_device_count(device_type: str) -> int:
"""Get the number of available devices of a specific type.
Args:
device_type (str): The type of device to count (e.g., "cuda", "cpu", "npu")
Returns:
int: The number of available devices of the specified type
"""
def set_device(device) -> None:
"""Set the current active device.
Args:
device: The device to set as active
"""
def sync_stream() -> None:
"""Synchronize the current stream."""
def sync_device() -> None:
"""Synchronize the current device."""
def get_stream():
"""Get the current stream.
Returns:
stream: The current stream object
"""import infinicore as ic
# 获取当前设备
current_device = ic.context.get_device()
print(f"Current device: {current_device}")
# 获取 CUDA 设备数量
cuda_count = ic.context.get_device_count("cuda")
print(f"CUDA devices: {cuda_count}")
# 设置设备
device = ic.device("cuda:0")
ic.context.set_device(device)
# 同步流和设备
ic.context.sync_stream()
ic.context.sync_device()
# 获取当前流
stream = ic.context.get_stream()