DeepSpeed

7528035c - Use device_name instead of device index to support other device (#3933)

Use device_name instead of device index to support other device (#3933) Create tensor with device=Integer will always choose cuda as its deivce for current pytorch version(2.1), other device should use device={device}:{index}. Change get_accelerator().current_device() to get_accelerator().current_device_name() to support other devices. Co-authored-by: Olatunji Ruwase <olruwase@microsoft.com>