Search found 4 matches

by dingyang2009
Fri Apr 05, 2013 8:26 pm
Forum: ROMS Problems
Topic: got different results running on different number of CPUs
Replies: 6
Views: 2771

Re: got different results running on different number of CPU

Much thanks! Really appreciate it.
by dingyang2009
Fri Apr 05, 2013 6:17 pm
Forum: ROMS Problems
Topic: got different results running on different number of CPUs
Replies: 6
Views: 2771

Re: got different results running on different number of CPU

I am not quite sure which field to show difference. The model was run for several days and the surface temperature field for the second day was shown in the image. The model was run on MPI and it was not the latest code. Is the difference due to mpi version?
t_diff.jpg
by dingyang2009
Fri Apr 05, 2013 1:29 pm
Forum: ROMS Problems
Topic: got different results running on different number of CPUs
Replies: 6
Views: 2771

Re: got different results running on different number of CPU

what are the differences? if you pcolor zeta_tileXY - zeta_tileYX do you see stripes, or are the differences at the boundaries? you could try differnet advection schemes, etc. Thanks! I did temp_case1 - temp_case2, the values are not zero,not only at the boundaries. temp_case1 and temp_case2 are at ...
by dingyang2009
Fri Apr 05, 2013 12:44 am
Forum: ROMS Problems
Topic: got different results running on different number of CPUs
Replies: 6
Views: 2771

got different results running on different number of CPUs

I have run the same case using different number of CPUs. The initial conditions and forcing field were same in two runs. I checked the results, temperature for example were different for the two runs. First time 24 cpus were used and 48 cpus were used for the second run. The model simulated values ...