A simple but less elegant solution would be to pack two contiguous arrays - one of the string lengths in an integer vector and another of all the strings concatenated into a vector<char> and broadcast both. Of course you could hide all this cruft inside a broadcast(vector<string>) specialization, which does the packing and unpacking.
-Ben On Oct 29, 2012, at 5:41 PM, "Roy Stogner" <royst...@ices.utexas.edu> wrote: > > On Mon, 29 Oct 2012, Derek Gaston wrote: > >> Is there a way to broadcast a vector of strings? > > Easily? Not currently. > >> /Users/gastdr/projects/libmesh/include/libmesh/parallel.h:285: error: >> ‘libMesh::Parallel::StandardType<T>::StandardType(const T*) [with T = >> std::basic_string<char, std::char_traits<char>, std::allocator<char> >]’ is >> private >> /Users/gastdr/projects/libmesh/include/libmesh/parallel.h:3696: error: >> within this context >> >> Which obviously means that this is a datatype that no one has worked with >> yet. >> >> So... any ideas? Should I go ahead and implement a datatype for this... or >> is there a better way? > > I'm afraid implementing a datatype won't work - that's a mechanism for > constant-size objects. > > For sending variable-size objects our best idiom right now is the > "packed_range" code. See "parallel_node.h" or "parallel_elem.h" for > examples, which (fortunately or unfortunately depending on your point > of view) are much much more complicated than the corresponding code > for std::basic_string<T> would need to be. > > I'm working on refactoring parallel.h right now, actually. Could you > keep a "parallel_string.h" separate the way the node/elem packing is? > --- > Roy > ------------------------------------------------------------------------------ > The Windows 8 Center - In partnership with Sourceforge > Your idea - your app - 30 days. > Get started! > http://windows8center.sourceforge.net/ > what-html-developers-need-to-know-about-coding-windows-8-metro-style-apps/ > _______________________________________________ > Libmesh-devel mailing list > Libmesh-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/libmesh-devel ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct _______________________________________________ Libmesh-devel mailing list Libmesh-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libmesh-devel
