cstop   10
tstop   6.0
meshtype rect
meshparams 10 90  1.0 9.0
subregion 0.0 1.0  3.0 9.0
rinit   1.0
einit   0.1
rinitsub 1.0e-3
einitsub 1.0e-7
bcx     0.0 1.0
bcy     0.0 9.0
ssmin   0.1
q1      0.3
q2      2.0
dtinit  1.e-2
chunksize 512