Open source finite element software for multiphysical problems
Elmer is a finite element software for numerical solution of partial differential equations and multiphysical problems. It includes models of structural mechanics, fluid dynamics, heat transfer, electromagnetics etc. Elmer home is www.csc.fi/elmer
CEED Library: Code for Efficient Extensible Discretizations
...One of the challenges with high-order methods is that a global sparse matrix is no longer a good representation of a high-order linear operator, both with respect to the FLOPs needed for its evaluation, as well as the memory transfer needed for a matvec. Thus, high-order methods require a new "format" that still represents a linear (or more generally non-linear) operator, but not through a sparse matrix.
VScope is an open source measurement device, which can be used to record data, transfer via LAN and visualize it with a GTK Application. It is subdivided into three parts, the VScope USB Hardware, a VScope Data Server and the VScope Plotter.