Charm++ is a portable adaptive runtime system for parallel applications. Application developers create an object-based decomposition of the problem of interest, and the runtime system manages issues of communication, mapping, load balancing, fault tolerance, and more. Sequential code implementing the methods of these parallel objects is written in C++. Calls to libraries in C++, C, and Fortran are common and straightforward. Charm++ is portable across individual workstations, clusters, accelerators (Cell SPEs and GPUs), and supercomputers such as those sold by IBM (Blue Gene, POWER) and Cray (XT3/4/5/6). Applications based on Charm++ are used on at least 5 of the 20 most powerful computers in the world.
Elemental is a C++ framework for distributed-memory dense linear algebra that strives to be fast, portable, and programmable. It can be thought of as a generalization of PLAPACK to element-by-element distributions that also makes use of recent algorithmic advances from the FLAME project. Elemental usually outperforms both PLAPACK and ScaLAPACK, however, it heavily relies on MPI collectives so a good MPI implementation is crucial. Both pure MPI and hybrid OpenMP-MPI configurations are supported.
Cambridge is a template engine for generating HTML/XML markup in Java applications. It is highly extensible, high performance, and designed to be less cluttered. It prefers making use of the scopes of the existing HTML/XML tags in your template instead of wrapping your tags with some non-standard tags or scripting code. Cambridge templates are pure HTML/XML documents that you can edit on any tool or view directly on browsers without any issues. Cambridge can be used in standalone Java applications, with Servlets, and along with popular Web frameworks such as Spring Mvc, Struts, Play Framework, JAX-RS, and many others.