Change the value of the "nens" parameter of SPPT in namelist.input

[hsdisahoe]

I'm going to change the value of "nens" parameter of SPPT in namelist.input, but the result is exactly the same.
The related Settings of namelist.input are as follows.

1st:
rand_perturb = 1,1,1,
sppt = 1,1,1,
lengthscale_sppt = 100000,100000,100000,
timescale_sppt = 21600,21600,21600,
gridpt_stddev_sppt = 0.525,0.525,0.525,
stddev_cutoff_sppt = 2.0,2.0,2.0,
nens = 1,
iseed_sppt = 20,

2rd:
rand_perturb = 1,1,1,
sppt = 1,1,1,
lengthscale_sppt = 100000,100000,100000,
timescale_sppt = 21600,21600,21600,
gridpt_stddev_sppt = 0.525,0.525,0.525,
stddev_cutoff_sppt = 2.0,2.0,2.0,
nens = 2,
iseed_sppt = 20,

 

[Ming Chen]

Did you compare the results by "differs"? Sometimes the difference could be very small but they are not identical.

 

[hsdisahoe]

Yes, I had calculated the difference, but the result is 0