Run sequential program 2X
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  1 threads.  8.94 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 3.17
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  1 threads.  9.02 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 3.20
Scale number of threads
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  1 threads.  8.93 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 3.16
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  2 threads.  4.49 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 1.59
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  3 threads.  3.09 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 1.10
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  4 threads.  2.46 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 0.87
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  5 threads.  2.03 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 0.72
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  6 threads.  1.73 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 0.61
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  7 threads.  1.51 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 0.53
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  8 threads.  1.35 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 0.48
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  9 threads.  1.23 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 0.44
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  10 threads.  1.15 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 0.41
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  11 threads.  1.07 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 0.38
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  12 threads.  1.04 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 0.37
Scale problem size
Terminated after 3453 steps.  Max. difference = 0.000100
700 rows.  12 threads.  0.63 seconds.  1691970000 grid point computations.  nanoseconds/comp. = 0.37
Terminated after 3470 steps.  Max. difference = 0.000100
800 rows.  12 threads.  0.81 seconds.  2220800000 grid point computations.  nanoseconds/comp. = 0.37
Terminated after 3484 steps.  Max. difference = 0.000100
900 rows.  12 threads.  1.02 seconds.  2822040000 grid point computations.  nanoseconds/comp. = 0.36
Terminated after 3505 steps.  Max. difference = 0.000100
1100 rows.  12 threads.  1.60 seconds.  4241050000 grid point computations.  nanoseconds/comp. = 0.38
Terminated after 3513 steps.  Max. difference = 0.000100
1200 rows.  12 threads.  2.01 seconds.  5058720000 grid point computations.  nanoseconds/comp. = 0.40
Terminated after 3534 steps.  Max. difference = 0.000100
1600 rows.  12 threads.  15.51 seconds.  9047040000 grid point computations.  nanoseconds/comp. = 1.71
Terminated after 3547 steps.  Max. difference = 0.000100
2000 rows.  12 threads.  29.69 seconds.  14188000000 grid point computations.  nanoseconds/comp. = 2.09
Terminated after 3556 steps.  Max. difference = 0.000100
2400 rows.  12 threads.  43.72 seconds.  20482560000 grid point computations.  nanoseconds/comp. = 2.13
Terminated after 3563 steps.  Max. difference = 0.000100
2800 rows.  12 threads.  61.09 seconds.  27933920000 grid point computations.  nanoseconds/comp. = 2.19
Terminated after 3567 steps.  Max. difference = 0.000100
3200 rows.  12 threads.  79.60 seconds.  36526080000 grid point computations.  nanoseconds/comp. = 2.18
Terminated after 3571 steps.  Max. difference = 0.000100
3600 rows.  12 threads.  101.17 seconds.  46280160000 grid point computations.  nanoseconds/comp. = 2.19
Terminated after 3574 steps.  Max. difference = 0.000100
4000 rows.  12 threads.  124.33 seconds.  57184000000 grid point computations.  nanoseconds/comp. = 2.17
Terminated after 3576 steps.  Max. difference = 0.000100
4400 rows.  12 threads.  148.28 seconds.  69231360000 grid point computations.  nanoseconds/comp. = 2.14
Terminated after 3578 steps.  Max. difference = 0.000100
4800 rows.  12 threads.  175.06 seconds.  82437120000 grid point computations.  nanoseconds/comp. = 2.12
Terminated after 3580 steps.  Max. difference = 0.000100
5200 rows.  12 threads.  194.53 seconds.  96803200000 grid point computations.  nanoseconds/comp. = 2.01
Terminated after 3582 steps.  Max. difference = 0.000100
5600 rows.  12 threads.  228.07 seconds.  112331520000 grid point computations.  nanoseconds/comp. = 2.03
Terminated after 3583 steps.  Max. difference = 0.000100
6000 rows.  12 threads.  247.07 seconds.  128988000000 grid point computations.  nanoseconds/comp. = 1.92
Terminated after 3584 steps.  Max. difference = 0.000100
6400 rows.  12 threads.  285.50 seconds.  146800640000 grid point computations.  nanoseconds/comp. = 1.94