parallel solver libraries within an object-oriented software framework

 The Trilinos Project is an effort to develop and implement robust
 parallel algorithms using modern object-oriented software design,
 while still leveraging the value of established numerical libraries
 such as PETSc, Aztec, the BLAS and LAPACK. It emphasizes abstract
 interfaces for maximum flexibility of component interchanging, and
 provides a full-featured set of concrete classes that implement all
 abstract interfaces.
 .
 This package contains the headers and static libraries.