On Wednesday September 28 2011 16:57:09 Garth N. Wells wrote: > On 29 Sep 2011, at 00:46, Johan Hake <[email protected]> wrote: > > Nice! > > > > Does this work for writing a Function to file in parallel too, like > > saving a solution during a run? > > Yes.
Nice! Johan > 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 : [email protected] > >> Unsubscribe : https://launchpad.net/~dolfin > >> More help : https://help.launchpad.net/ListHelp > > _______________________________________________ > Mailing list: https://launchpad.net/~dolfin > Post to : [email protected] > Unsubscribe : https://launchpad.net/~dolfin > More help : https://help.launchpad.net/ListHelp _______________________________________________ Mailing list: https://launchpad.net/~dolfin Post to : [email protected] Unsubscribe : https://launchpad.net/~dolfin More help : https://help.launchpad.net/ListHelp
