                             backward_offsets    [gpu],
                             backward_partitions [gpu],
                             backward_convertions[gpu]);
-                    else  
+                    else
                         retval = graph_slices[gpu]->Init(
                             stream_from_host,
                             num_gpus,

     */
    cudaError_t Reset(
        FrontierType frontier_type,
        GraphSlice<SizeT, VertexId, Value>  
               *graph_slice,
        double  queue_sizing       = 2.0,
        bool    _USE_DOUBLE_BUFFER = false, 
        double  queue_sizing1      = -1.0)
    {   
        cudaError_t retval = cudaSuccess;
        for (int peer=0; peer<num_gpus; peer++)
            out_length[peer] = 1;
        if (queue_sizing1<0) queue_sizing1 = queue_sizing;

        //  
        // Allocate frontier queues if necessary
        //  

        // Determine frontier queue sizes
        SizeT new_frontier_elements[2] = {0,0};

    VertexId            **backward_convertions; // Convertion tables for backward propergation

    // Methods

    /**
     * @brief ProblemBase default constructor
     */
