[jave@node4 MGS2]$ time ./run_mgs2_qd 64 1024 1 6

real	2m0.069s
user	1m32.061s
sys	0m27.672s
[jave@node4 MGS2]$ time ./run_mgs2_qd 64 2048 1 6

real	15m24.871s
user	9m44.882s
sys	5m37.872s
[jave@node4 MGS2]$ 

