Scale problem to fit within caches (15MiB)
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  1 processes.  8.96 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 3.17
Terminated after 3513 steps.  Max. difference = 0.000100
1200 rows.  2 processes.  8.34 seconds.  5058720000 grid point computations.  nanoseconds/comp. = 1.65
Terminated after 3534 steps.  Max. difference = 0.000100
1600 rows.  3 processes.  13.63 seconds.  9047040000 grid point computations.  nanoseconds/comp. = 1.51
Terminated after 3547 steps.  Max. difference = 0.000100
2000 rows.  5 processes.  17.29 seconds.  14188000000 grid point computations.  nanoseconds/comp. = 1.22
Terminated after 3556 steps.  Max. difference = 0.000100
2400 rows.  6 processes.  21.57 seconds.  20482560000 grid point computations.  nanoseconds/comp. = 1.05
Terminated after 3563 steps.  Max. difference = 0.000100
2800 rows.  8 processes.  30.09 seconds.  27933920000 grid point computations.  nanoseconds/comp. = 1.08
Terminated after 3567 steps.  Max. difference = 0.000100
3200 rows.  11 processes.  37.18 seconds.  36526080000 grid point computations.  nanoseconds/comp. = 1.02