According to the user who submitted the ebuild originally, sci-visualization/gfsview-0.4 should compile fine on amd64. To test that gfsview works properly, please download http://dev.gentoo.org/~markusle/sci-overlay/gfsview-test/boussinesq.gfs http://dev.gentoo.org/~markusle/sci-overlay/gfsview-test/boussinesq.gfv http://dev.gentoo.org/~markusle/sci-overlay/gfsview-test/cylinder.gts and do a gerris2D boussinesq.gfs | gfsview2D > /dev/null This should fire up gfsview and provide you with a real time view of a fluid dynamics simulation. Thanks, Markus
I have discovered a problem with ImageMagick on my amd64. This becomes a problem with boussinesq.gfs because there are three "EventScript..." commands that tells gfsview to use ImageMagick commands to make ppm and eps files. The only way that I have been able to make the simulation work is to comment out those three "EventScript..." lines in boussinesq.gfs. I don't know whether this ImageMagick problem is on my machine, or a problem with gerris/gfsview. There are other examples that install with gerris. See /usr/share/doc/gerris-0.8/examples. The rt example also needs editing, but in that case I had to comment out the "OutputPPM..." blocks (made up of multiple lines!). I forgot about the dependency on ImageMagick when I submitted the first ebuild. I will put together a new one with ImageMagick as a dependency (maybe with the use keywords?). Thanks for evaluating gerris and gfsview.
(In reply to comment #1) > I have discovered a problem with ImageMagick on my amd64. This becomes a > problem with boussinesq.gfs because there are three "EventScript..." commands > that tells gfsview to use ImageMagick commands to make ppm and eps files. The > only way that I have been able to make the simulation work is to comment out > those three "EventScript..." lines in boussinesq.gfs. > The last EventScript line is a call to "convert" and any problem with it indicates and issue with Imagemagick rather than gfsview. As such, Imagemagick is not a dependency of gfsview but rather of the example I have chosen. However, glancing at the gfsview's source code it looks like the ppm generating routine is part of gfsview itself and needs fixing in case it shouldn't work. Works just fine here on my P4 box. What exactly is the problem? best, Markus
The boussinesq simulation... % gerris2D boussinesq.gfs | gfsview2D > /dev/null step: 0 t: 0.00000000 dt: 1.000000e+00 cpu: 0.00000000 Balance summary: 1 PE domain size: min: 647 avg: 647 | 0 max: 647 Approximate projection niter: 0 residual.bias: 0.000e+00 0.000e+00 residual.first: 0.000e+00 0.000e+00 0 residual.second: 0.000e+00 0.000e+00 0 residual.infty: 0.000e+00 0.000e+00 0 Segmentation fault Exit 139 What led me to think it was ImageMagick was the result of trying the rt example. % shapes rayleigh-taylor | transform --sy 2. | transform --ty 0.5 > rt.gts && gerris2D rt.gfs | gfsview2D rt.gfv step: 0 t: 0.00000000 dt: 1.000000e+00 cpu: 0.00000000 Balance summary: 1 PE domain size: min: 87380 avg: 87380 | 0 max: 87380 Approximate projection niter: 0 residual.bias: 0.000e+00 0.000e+00 residual.first: 0.000e+00 0.000e+00 0 residual.second: 0.000e+00 0.000e+00 0 residual.infty: 0.000e+00 0.000e+00 0 U diffusion niter: 0 residual.bias: 0.000e+00 0.000e+00 residual.first: 0.000e+00 0.000e+00 0 residual.second: 0.000e+00 0.000e+00 0 residual.infty: 0.000e+00 0.000e+00 0 **ERROR: [mpeg2enc] Could not read YUV4MPEG2 header: stream requires unsupported features! **ERROR: [mpeg2enc] Could not read YUV4MPEG2 header: stream requires unsupported features! gfsview: <stdin>: Broken pipe In both cases gfsview flashes for a moment on the screen and then is gone. Comment out the attempts to make output files with ImageMagick and gfsview works fine.
Dear amd64 team, Tim Cera was so kind to create five test sets for gfsview to allow for proper testing of the package. You can grab the files at the following locations; each test can then simply be run by the respective test_*.sh shell script http://dev.gentoo.org/~markusle/sci-overlay/gfsview-test/boussinesq/ http://dev.gentoo.org/~markusle/sci-overlay/gfsview-test/cylinder/ http://dev.gentoo.org/~markusle/sci-overlay/gfsview-test/rt/ http://dev.gentoo.org/~markusle/sci-overlay/gfsview-test/shear/ http://dev.gentoo.org/~markusle/sci-overlay/gfsview-test/cylinder/heated/ Thanks, Markus
Added ~amd64. Thanks both for the test scripts.
