def METHOD_NAME():
    Utils.initialize_model_parallel(4,2)
    input_data = torch.ones((1)).cuda()*Utils.rank
    output_data = mappings._ReduceFromModelParallelRegion.symbolic(None, input_data)
    result = torch.ones(1).cuda()
    result = result * 22 if Utils.rank >= 4 else result * 6
    assert(torch.equal(output_data, result))
    input_data = torch.ones((1)).cuda()*Utils.rank
    assert(torch.equal(mappings.reduce_from_tensor_model_parallel_region(input_data), result))
    assert(torch.equal(input_data, mappings._ReduceFromModelParallelRegion.backward(None, input_data)))
    Utils.destroy_model_parallel()