In the following address are the code and some testing/screenshots of the RAW format in Xd3d.
http://ptmat.ptmat.fc.ul.pt/%7Endl/other/dolfin.dir/README.html#sec-26 On Monday 16 June 2008, Anders Logg wrote: > On Mon, Jun 16, 2008 at 07:44:22PM +0200, Kent-Andre Mardal wrote: > > man, 16.06.2008 kl. 15.26 +0100, skrev Nuno David Lopes: > > > What post-processor do you want to use? > > > For Xd3d i have the solution. > > > I don't know if there are other Post-processor that reads the files > > > like xd3d. > > > > > > I've simplified/modified the vtk format and made a raw format that i'm > > > testing. > > > It's possible to save only the solutions.(much smaller files) > > > The idea is exactly what you are thinking, time-dependent problems with > > > the same mesh. > > > > > > Example of usage: > > > File g_file("g.raw"); > > > g_file<<g; > > > > > > I've made some tests and it seems to work fine. > > > > I'm using vtk and I'd very much like to see your code :) > > > > Kent > > I think we need to implement a special purpose format for fast access > to solutions, in particular time series. For ODE solutions, Benjamin > Kehlet is working on a binary format with two levels of cache (memory > and disk) which makes it possible to save a time series of ODE > solutions to file and quickly access the solution at any given time t, > including interpolation. > > If the time series fits in memory, it will already be in > memory. Otherwise it will be fetched from disk. > > This is currently being implemented in the class ODESolution, but > maybe we can reuse the code for PDE solutions as well. If we limit > ourselves to solutions on a fixed constant mesh, then we just need to > store a time series of vectors. > > How about a class TimeSeries that does this? It can then be reused > by two classes ODESolution and PDESolution which take care of the > rest (for example the mesh which can stay in memory). > > If this sounds good, I can ask Benjamin to move the relevant code from > ODESolution to TimeSeries. -- Nuno David Lopes _______________________________________________ DOLFIN-dev mailing list [email protected] http://www.fenics.org/mailman/listinfo/dolfin-dev
