On Thu, Jan 19, 2012 at 6:44 PM, Mohamad M. Nasr-Azadani <mmnasr at gmail.com>wrote:
> You should just create a parallel Vec to hold the 1D data. > DAGetLocalInfo() tells you all the local sizes. > > Thanks Matt. But I am not sure how this would help since PETSC_COMM_WORLD > includes all the processors and in all three directions whereas the 1-D > data is only the size of Nx points. > This vector is not big at all, I could even create is on one processor. > The only concern that I have is > can I create an *.h5 file using PETSC_COMM_WORLD, dump the data, close the > file and then, re-open the file (append mode) with a different viewer > created via PETSC_COMM_SELF, and dump the coordinates vector to the end of > it? Of course, I only call PETSC_COMM_SELF on processor zero. > Then give 0 sizes on everything but 0. Matt > Thanks, > M > > > On Thu, Jan 19, 2012 at 4:33 PM, Matthew Knepley <knepley at gmail.com>wrote: > >> On Thu, Jan 19, 2012 at 6:08 PM, Mohamad M. Nasr-Azadani < >> mmnasr at gmail.com> wrote: >> >>> Thanks Jed. >>> My solution to that was to create a 1D vector local to for instance >>> processor zero that holds all the coordinates. Then after I dumped all the >>> parallel data to the *.h5 file, I create another viewer on processor zero >>> or PETSC_COMM_SELF and dump that new vector including tHe coordinates to >>> the end of the existing file. >>> Do you think that should be possible? >>> >> >> You should just create a parallel Vec to hold the 1D data. >> DAGetLocalInfo() tells you all the local sizes. >> >> Matt >> >> >>> Thanks, >>> Mohamad >>> >>> >>> >>> >>> On Thu, Jan 19, 2012 at 4:02 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote: >>> >>>> On Thu, Jan 19, 2012 at 18:00, Mohamad M. Nasr-Azadani < >>>> mmnasr at gmail.com> wrote: >>>> >>>>> What I need is just to add 3 1-D arrays of (x[Nx]+y[Ny]+z[Nz]) >>>>> including the grid coordinates to the end of the *.h5 file and then later >>>>> on, I can use any visualization software to load the data using those >>>>> coordinates. I am using orthogonal grid, that's why I don't need all the >>>>> (x,y,z) coordinates for each cell. >>>> >>>> >>>> If you want this special case, you have to manage it by hand. >>>> >>> >>> >> >> >> -- >> What most experimenters take for granted before they begin their >> experiments is infinitely more interesting than any results to which their >> experiments lead. >> -- Norbert Wiener >> > > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120119/ee1a6f18/attachment-0001.htm>
