sci-libs/p4est
Scalable Algorithms for Parallel Adaptive Mesh Refinement on Forests of Octrees
USE Flags
debug
Global: Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see http://www.gentoo.org/proj/en/qa/backtraces.xml
doc
Global: Adds extra documentation (API, Javadoc, etc)
examples
Global: Install examples, usually source code
mpi
Global: Adds MPI (Message Passing Interface) layer to the apps that support it
openmp
Global: Build support for the OpenMP (support parallel computing), requires >=sys-devel/gcc-4.2 built with USE="openmp"
threads
Global: Adds threads support for various packages. Usually pthreads
+vtk-binary
* This flag is undocumented *