<div dir="ltr"><div class="gmail_extra">On Sat, Jan 5, 2013 at 8:49 PM, Tim Tautges <span dir="ltr"><<a href="mailto:tautges@engr.wisc.edu" target="_blank">tautges@engr.wisc.edu</a>></span> wrote:<br><div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Too late to matter, but I wonder why there's such aversion to longer names. Going from DMComplex to DMPlex goes from misleading to neutral/useless. If you had to field questions about DMComplex, I don't think DMPlex is going to get rid of those questions much. To me, DMCellComplex is the clear choice, or if you just can't bear the extra few characters, then DMMesh would be almost as good.</blockquote>
</div><br></div><div class="gmail_extra" style>There was/is a DMMesh that DMPlex will eventually replace. "Mesh" is an extremely generic and overloaded name, but DMPlex is really one (quite general) mesh-related interface. It seems like every project has a different idea about what the "mesh" is responsible for, so I think that name is best avoided.</div>
<div class="gmail_extra" style><br></div><div class="gmail_extra" style>One reason for not-too-long names is that C [1] only guarantees significance in the first 31 characters of an external identifier. Using a long prefix reduces the number of meaningful characters left.</div>
<div class="gmail_extra" style><br></div><div class="gmail_extra" style>PETSc has quite few user-visible classes and we consider DMPlex to be a building block for more "helpful"/specific DMs. These can usually be moderately thin layers containing a DMPlex. For example, we're using DMPlex in a finite volume CFD/heat transfer project and in PyLith (finite elements with internal faults). It's important that the name be unique and distinctive, but not that the name be a stand-alone explanation of the component.</div>
<div class="gmail_extra" style><br></div><div class="gmail_extra" style>[1] Yes, C++ supports much longer identifiers (namespaces and argument types are all mangled in), though this slows down the linker and dynamic loader.</div>
</div>