mindspore.hal.is_initialized
- mindspore.hal.is_initialized(device_target)[source]
Returns whether specified backend is initialized.
Note
MindSpore's backends "CPU", "GPU" and "Ascend" will be initialized in the following scenarios:
For distributed job, backend will be initialized after mindspore.communication.init method is called.
For standalone job, backend will be initialized after running the first operator or calling creating stream/event interfaces.
- Parameters
device_target (str) – The device name of backend, should be one of "CPU", "GPU" and "Ascend".
- Returns
Bool, whether the specified backend is initialized.
Examples
>>> import mindspore as ms >>> import numpy as np >>> from mindspore import Tensor, ops >>> ms.context.set_context(device_target="CPU") >>> assert not ms.hal.is_initialized("CPU") >>> a = Tensor(np.ones([1, 2]), ms.float32) >>> b = Tensor(np.ones([1, 2]), ms.float32) >>> c = ops.add(a, b).asnumpy() >>> print(ms.hal.is_initialized("CPU")) True