A C++ sparse-direct solver for distributed-memory architectures with an emphasis on scalable triangular solves and memory usage. The library was initially released as part of A parallel sweeping preconditioner for heterogeneous 3D Helmholtz equations (a preprint is available on arXiv) and is built directly on top of Elemental.

You may check out a copy of Clique using the command:

git clone --recursive git://github.com/poulson/Clique.git

The --recursive argument handles checking out Elemental as a git submodule. If you have an especially outdated version of git, then you may instead need to run:

git clone git://github.com/poulson/Clique.git
cd Clique
git submodule update --init

and, with even older versions of git:

git clone git://github.com/poulson/Clique.git
cd Clique
git submodule init
git submodule update

The documentation for the development version of Clique is built using Sphinx.

Implementations:

1. DSCPACK
2. MUMPS
3. PSPASES
4. SuperLU_Dist

Wrappers:

1. PETSc
2. Trilinos (Amesos)

Note that PETSc contains interfaces for both Clique and Elemental.