Search found 7 matches

by mcobas
Thu Nov 17, 2011 10:51 am
Forum: ROMS Tools and Techniques
Topic: Anyone tried 3D visualization of ROMS output using Mayavi?
Replies: 5
Views: 3961

Re: Anyone tried 3D visualization of ROMS output using Mayav

Hello, I have not used mayavi, but I have used VTK with python. This animation was done using VTK and python. My experience is that the resultant code is very long, sometimes it is difficult to find information and you have to do a lot of trial and error. I am a newbe in VTK, but I don't think using...
by mcobas
Wed Oct 27, 2010 11:28 am
Forum: ROMS Tools and Techniques
Topic: rnt compilation problem (solved)
Replies: 0
Views: 1682

rnt compilation problem (solved)

Hello, I've been struggling for some time with a problem regarding the mex compilation of the fortran functions under the rnt directory of the RNT toolbox. For some reason, matlab can't find the libsvml.so dynamic library, although the LD_LIBRARY_PATH is set correctly, pointing to the directory wher...
by mcobas
Sun Oct 10, 2010 8:04 pm
Forum: ROMS Discussion
Topic: zeros in bathymetry
Replies: 8
Views: 4037

Re: zeros in bathymetry

Hello, I have always thought you can't have any zeros in your bathymetry. If you do, the slope parameter condition will never be met, unless all the points in your bathymetry are all zero. The slope parameter is defined as |r_i - r_{i+1}|/(r_i + r_{i+1}), and it should be smaller than 0.2, according...
by mcobas
Thu Aug 26, 2010 10:26 am
Forum: ROMS Problems
Topic: Blowups depending on model decomposition with MPI
Replies: 6
Views: 3599

Re: Blowups depending on model decomposition with MPI

Hello, Thanks for the replies. The run for the 6x4 domain decomposition didn't work either. Besides, I noticed there are differences between the OpenMP 4x4 and MPI 1x35 runs. In temperature the maximum difference is over 2.5 degrees. The differences in temperature, salinity, zeta, u and v concentrat...
by mcobas
Wed Aug 25, 2010 9:20 am
Forum: ROMS Problems
Topic: Blowups depending on model decomposition with MPI
Replies: 6
Views: 3599

Re: Blowups depending on model decomposition with MPI

Hello Kate and everybody, Thanks for your fast reply, Kate. So far I had compared the solutions visually, and they seemed equal to me. But today I took the two configurations with 35 processors (5x7 and 1x35) and compared the temperature at every layer. The difference is relevant for the top layers,...
by mcobas
Tue Aug 24, 2010 11:42 am
Forum: ROMS Problems
Topic: Blowups depending on model decomposition with MPI
Replies: 6
Views: 3599

Blowups depending on model decomposition with MPI

Hello, I have always run the ROMS model in parallel using OpenMP, but recently I changed to MPI. To my surprise, depending on the number of processors and the model decomposition, I get blowups, and/or different results. With OpenMP, I had been using a 4x4 scheme. If I use the same scheme with MPI, ...
by mcobas
Sat Aug 14, 2010 1:07 am
Forum: ROMS Tools and Techniques
Topic: About linear programing with bathymetry smoothing
Replies: 3
Views: 1513

Re: About linear programing with bathymetry smoothing

Hello,

you can download it from Mathieu Dutour Sikiric's personal web site,

http://drobilica.irb.hr/~mathieu/Bathymetry/

Regards,

Marcos Cobas