On 29 Sep 2011, at 00:46, Johan Hake <johan.h...@gmail.com> wrote:
> Nice! > > Does this work for writing a Function to file in parallel too, like saving a > solution during a run? > Yes. Garth > Johan > > On Wednesday September 28 2011 16:34:57 Garth N. Wells wrote: >> After a long absence, Function i/o to file has made a come back. It >> was particularly necessary to support running code in parallel that >> reads in data for Functions (such as the advection-diffusion demo). We >> have more demos running in parallel now, and it's now possible to >> restart parallel computations reliably (and even on a different number >> of processes). >> >> When sending a Function to an XML file, there is an entry for each >> vector (dof) entry, e.g. >> >> <dof global_index="2" value="0" cell_index="3" local_dof_index="0" /> >> >> 'global_index' is the vector index, 'value' is the entry value, >> 'cell_index' is a cell that the dof belongs to and 'local_dof_index' >> is the local dof number relative to the given cell. With this >> information, it's possible to read in and use function data >> independently of the new dof map. If anyone has suggestions or >> objections to this format, speak up now. >> >> When reading in a Function, the Function must have a FunctionSpace, >> and the vector must already have been sized (since the partitioning of >> the vector in parallel will depend on the mesh partition). >> >> Garth >> >> _______________________________________________ >> Mailing list: https://launchpad.net/~dolfin >> Post to : dolfin@lists.launchpad.net >> Unsubscribe : https://launchpad.net/~dolfin >> More help : https://help.launchpad.net/ListHelp _______________________________________________ Mailing list: https://launchpad.net/~dolfin Post to : dolfin@lists.launchpad.net Unsubscribe : https://launchpad.net/~dolfin More help : https://help.launchpad.net/ListHelp
