Add Accelerator API to ensembling tutorial (#3606) #5299

Job	Run time
pytorch_tutorial_build_worker (8, 15, linux.g5.4xlarge.nvidia.gpu)	22m 1s
pytorch_tutorial_build_worker (2, 15, linux.g5.4xlarge.nvidia.gpu)	24m 54s
pytorch_tutorial_build_worker (4, 15, linux.g5.4xlarge.nvidia.gpu)	36m 4s
pytorch_tutorial_build_worker (6, 15, linux.g5.4xlarge.nvidia.gpu)	21m 14s
pytorch_tutorial_build_worker (13, 15, linux.g5.4xlarge.nvidia.gpu)	16m 58s
pytorch_tutorial_build_worker (15, 15, linux.g5.4xlarge.nvidia.gpu)	28m 57s
pytorch_tutorial_build_worker (12, 15, linux.g5.4xlarge.nvidia.gpu)	22m 23s
pytorch_tutorial_build_worker (11, 15, linux.g5.4xlarge.nvidia.gpu)	27m 29s
pytorch_tutorial_build_worker (9, 15, linux.g5.4xlarge.nvidia.gpu)	26m 49s
pytorch_tutorial_build_worker (1, 15, linux.g5.12xlarge.nvidia.gpu)	16m 51s
pytorch_tutorial_build_worker (5, 15, linux.g5.4xlarge.nvidia.gpu)	24m 10s
pytorch_tutorial_build_worker (7, 15, linux.g5.4xlarge.nvidia.gpu)	27m 23s
pytorch_tutorial_build_worker (3, 15, linux.g5.4xlarge.nvidia.gpu)	25m 8s
pytorch_tutorial_build_worker (14, 15, linux.g5.4xlarge.nvidia.gpu)	17m 16s
pytorch_tutorial_build_worker (10, 15, linux.g5.4xlarge.nvidia.gpu)	26m 49s
pytorch_tutorial_build_manager	23m 38s
	6h 28m 4s

Provide feedback