The back-and-forth strategy, where at ith step, a processor receives the sieve from a processor at a distance i (1) i and sends its current sieve to the processor at a distance i (1)i+1 as shown in Fig. 5 converges in at most 2 Dn moves.
The back-and-forth strategy, where at ith step, a processor receives the sieve from a processor at a distance i (1) i and sends its current sieve to the processor at a distance i (1)i+1 as shown in Fig. 5 converges in at most 2 Dn moves.