mindspore.hal.device_count

mindspore.hal.device_count(device_target=None)[source]

Return device count of specified device, this api will be deprecated and removed in future versions, please use the api mindspore.device_context.cpu.device_count() , mindspore.device_context.gpu.device_count(), mindspore.device_context.ascend.device_count() instead.

Note

For CPU device, this method always returns 1.

Parameters

device_target (str, optional) – The target device specified, should be one of "CPU" , "GPU" and "Ascend" . Default None , represents the current device set by context.

Returns

int

Examples

>>> import mindspore
>>> device_target = mindspore.context.get_context("device_target")
>>> print(mindspore.hal.device_count(device_target))