Elemental version 0.87.7

Minor changes since 0.87.0

• Fixed a bug in the affine QP IPM initialization
• Fixed a bug in the El::SparseInvCov lambda definition for El::HermitianFunction
• Fixed a bug in the sparse Dantzig Selector implementation
• Added operator* for integer index ranges
• Fixed bit-rot in many python IPM example drivers
• Fixed CMAKE_INSTALL_LIBDIR usage in ElVars.in
• Fixed El::UpdatedMappedDiagonal prototype in El/blas_like/level1/decl.hpp (avoiding undefined ref's)
• Fixed call to El::lin_solve::ScaLAPACKHelper in src/lapack_like/solve/Linear.cpp
• Avoided python global variables (which were not propagating on recent versions of OS X)
• Avoided compiler error from implicit conversions between El::Int and El::BigFloat for member variables
• Simplified src/core/mpi_register.cpp and avoided unfreed MPI memory
• Avoided unused variables
• Added support for reading El::SparseMatrix and El::DistSparseMatrix in El::MATRIX_MARKET format
• Fixed 64-bit integer builds
• Fixed bug in promotion of El::Quad
• Fixed a substantial amount of bit-rot in the Python interface and its examples
• Fixed CTest on Mac OS X
• Extended interface of El::LUMod to support any low-rank modification
• Added missing implementation of sequential dense equilibration so that the sequential dense Interior Point Methods now function
• Extended more routines from accepting El::ElementalMatrix to the more general El::AbstractDistMatrix
• Renamed DEBUG_ONLY to EL_DEBUG_ONLY, RELEASE_ONLY to EL_RELEASE_ONLY, and DEBUG_CSE to EL_DEBUG_CSE and ensured that they function without a preceding import of the El namespace
• Removed invalid calls to std::numeric_limits for non-STL datatypes
• Greatly curated the example drivers (e.g., by always making explicit use of the El namespace)
• Added (and incorporated) an El::MakeFunction helper for converting lambdas to an appropriate std::function

Notable functionality additions

• (Arbitrary-precision) real and complex Lenstra/Lenstra/Lovasz (LLL) lattice reduction
• (Arbitrary-precision) real and complex Block Korkine-Zolotarev (BKZ) and various enumeration heuristic extensions (BKZ 2.0 and y-sparse enumeration)
• (Arbitrary-precision) distributed divide-and-conquer real symmetric tridiagonal EVD
• (Arbitrary-precision) distributed divide-and-conquer bidiagonal SVD
• (Arbitrary-precision) distributed Aggressive Early Deflation Hessenberg QR algorithms
• (Arbitrary-precision) distributed high-performance level 3 BLAS complex triangular eigenvector computation
• (Arbitrary-precision) distributed high-performance pseudospectra
• (Arbitrary-precision) distributed real and complex sparse linear solvers (including a special interface for symmetric quasi-semidefinite matrices)
• (Arbitrary-precision) distributed real and complex generalized sparse least squares solvers (including LSE and GLM)
• (Arbitrary-precision) distributed dense and sparse Linear, Quadratic, and Second-Order Cone Programming

Packaging additions

• Ubuntu packages with a PPA at https://launchpad.net/~libelemental/+archive/ubuntu/ppa
• Redhat/Fedora packages https://copr.fedorainfracloud.org/coprs/rhl/elemental/

Relevant toolchain bugs

• GCC Release builds are (by default) blocked on OS X due to -O3 optimizations leading to a stack_not_16_byte_aligned_error error in the 5.x and 6.x series of GCC. Please see #181 for a more detailed discussion. The CMake flag -D EL_IGNORE_OSX_GCC_ALIGNMENT_PROBLEM=ON will prevent the error for OSX GCC Release builds. Further, Homebrew's GCC 4.9 does not properly handle exceptions (see Homebrew/homebrew-core#7837 (comment)).
• OpenMPI versions before 1.8.1 are prevented by the CMake configuration due to bugs in OpenMPI 1.6.5's handling of complex datatypes
• Intel compilers before version 17 update 1 will not properly compile Elemental (see Issue #177 )
• Compiling MPICH 3.2 with Clang on recent versions of OS X can lead to segfaults in MPID_Request_create within an MPI_Alltoallv call (see Issue #200 )
• MPICH must be configured with the --enable-two-level-namespace option on Mac OS X (see Issue #203 )

Significant contributors for this release

• Aron Ahmadia
  • Reported bit-rot in the python example drivers
• Haim Avron haimav@post.tau.ac.il
  • Numerous useful bug reports (including one effecting 0.87.0 and one for 0.87.6)
  • Contributed towards the current Debian packaging process
• Satish Balay balay@msc.anl.gov
  • Numerous bug reports for code cleanliness (including one effecting 0.87.2)
• David Blom davidsblom@gmail.com
  • Added MaxAbs implementations
• Jake Bolewski jakebolewski@gmail.com
  • Made Python support much more robust
  • Fixed CMake OSX RPATH handling
  • Helped introduce Travis CI
• Rodrigo Canales rodrigo.canales@rwth-aachen.de
  • Fixed bugs in mkl::Trrk and xgemmt calls
• Jiahao Chen jiahao@mit.edu
  • Set up the CMake testing framework
  • Helped introduce Travis CI
• Martin Copik mcopik@gmail.com
  • Fixed PMRRR double lock free bug
  • Fixed ScaLAPACK GFORTRAN_LIB configuration bug
  • Fixed METIS and ParMETIS configuration bugs
• Aidan Dang danga@student.unimelb.edu.au
  • Reported bugs in SVD and submitted fix for 64-bit integer build
  • Contributed operator* for El::RangeEl::Int
• Ron Estrin restrin@stanford.edu
  • Substantially improved the LLL performance
• Jeff Hammond jeff.science@gmail.com
  • Help with numerous toolchain issues (especially the Intel compilers)
• Yves Ineichen iff@yvesineichen.com
  • Contributed towards the current Debian packaging process
  • Numerous useful bug reports
• Georgios Kollias gkollias@us.ibm.com
  • Reported int -> BigFloat conversion issue effecting 0.87.2
• Ryan Lewis me@ryanlewis.net
  • Spearheaded the Fedora packaging
  • Setting up the (soon-to-be-integrated) Jenkins CI
• Yingzhou (Ryan) Li ryanli@stanford.edu
  • Added proper CMake project exports
  • Several bug reports on process grids with viewing processes
• Tim Moon tym1@stanford.edu
  • Added the high-performance complex triangular eigensolver (see https://arxiv.org/abs/1607.01477)
• Andreas Noack andreasnoackjensen@gmail.com
  • Helped introduce Travis CI
• Jack Poulson jack.poulson@gmail.com
  • Added Aggressive Early Deflation Hessenberg QR implementation
  • Added Divide and Conquer bidiagonal SVD
  • Added Divide and Conquer real symmetric tridiagonal EVP
  • Added lattice reduction functionality
  • Added Interior Point Methods and sparse generalized least squares methods
  • Extended El::Complex class to support DoubleDouble, QuadDouble, Quad, and BigFloat
  • Added MPI support for BigFloat
  • Introduced LaunchPad PPA
  • Adminstrivia and making the build system more robust
• Mukundhan Selvam Mukundhan.Selvam@mscsoftware.com
  • Bug reports for sparse-direct solvers
  • Bug reports for the Intel compilers
• Barry Smith bsmith@mcs.anl.gov
  • Numerous bug reports on code cleanliness
• Hong Zhang hzhang@mcs.anl.gov
  • Numerous bug reports on code cleanliness

Elemental version 0.87.6

Minor changes since 0.87.0

• Fixed UpdatedMappedDiagonal prototype in El/blas_like/level1/decl.hpp (to avoid undefined references)
• Fixed call to lin_solve::ScaLAPACKHelper in src/lapack_like/solve/Linear.cpp
• Avoided python global variables (which were not propagating on recent versions of OS X)
• Avoided compiler error from implicit conversions between El::Int and El::BigFloat for member variables
• Simplified src/core/mpi_register.cpp and avoided unfreed MPI memory
• Avoided unused variables
• Added support for reading SparseMatrix and DistSparseMatrix in MATRIX_MARKET format
• Fixed 64-bit integer builds
• Fixed bug in promotion of Quad
• Fixed a substantial amount of bit-rot in the Python interface and its examples
• Fixed CTest on Mac OS X
• Extended interface of LUMod to support any low-rank modification
• Added missing implementation of sequential dense equilibration so that the sequential dense Interior Point Methods now function
• Extended many more routines from accepting ElementalMatrix to the more general AbstractDistMatrix
• Renamed DEBUG_ONLY to EL_DEBUG_ONLY, RELEASE_ONLY to EL_RELEASE_ONLY, and DEBUG_CSE to EL_DEBUG_CSE and ensured that they function without a preceding import of the El namespace
• Removed invalid calls to std::numeric_limits for non-STL datatypes
• Greatly curated the example drivers (e.g., by always making explicit use of the El namespace)
• Added (and incorporated) an El::MakeFunction helper for converting lambdas to an appropriate std::function

Notable functionality additions

• (Arbitrary-precision) real and complex Lenstra/Lenstra/Lovasz (LLL) lattice reduction
• (Arbitrary-precision) real and complex Block Korkine-Zolotarev (BKZ) and various enumeration heuristic extensions (BKZ 2.0 and y-sparse enumeration)
• (Arbitrary-precision) distributed divide-and-conquer real symmetric tridiagonal EVD
• (Arbitrary-precision) distributed divide-and-conquer bidiagonal SVD
• (Arbitrary-precision) distributed Aggressive Early Deflation Hessenberg QR algorithms
• (Arbitrary-precision) distributed high-performance level 3 BLAS complex triangular eigenvector computation
• (Arbitrary-precision) distributed high-performance pseudospectra
• (Arbitrary-precision) distributed real and complex sparse linear solvers (including a special interface for symmetric quasi-semidefinite matrices)
• (Arbitrary-precision) distributed real and complex generalized sparse least squares solvers (including LSE and GLM)
• (Arbitrary-precision) distributed dense and sparse Linear, Quadratic, and Second-Order Cone Programming

Packaging additions

• Ubuntu packages with a PPA at https://launchpad.net/~libelemental/+archive/ubuntu/ppa
• Redhat/Fedora packages https://copr.fedorainfracloud.org/coprs/rhl/elemental/

Relevant toolchain bugs

• GCC Release builds are (by default) blocked on OS X due to -O3 optimizations leading to a stack_not_16_byte_aligned_error error in the 5.x and 6.x series of GCC. Please see #181 for a more detailed discussion. The CMake flag -D EL_IGNORE_OSX_GCC_ALIGNMENT_PROBLEM=ON will prevent the error for OSX GCC Release builds. Further, Homebrew's GCC 4.9 does not properly handle exceptions (see Homebrew/homebrew-core#7837 (comment)).
• OpenMPI versions before 1.8.1 are prevented by the CMake configuration due to bugs in OpenMPI 1.6.5's handling of complex datatypes
• Intel compilers before version 17 update 1 will not properly compile Elemental (see Issue #177 )
• Compiling MPICH 3.2 with Clang on recent versions of OS X can lead to segfaults in MPID_Request_create within an MPI_Alltoallv call (see Issue #200 )
• MPICH must be configured with the --enable-two-level-namespace option on Mac OS X (see Issue #203 )

Significant contributors for this release

• Haim Avron haimav@post.tau.ac.il
  • Contributed towards the current Debian packaging process
  • Numerous useful bug reports (including one effecting 0.87.0)
• Satish Balay balay@msc.anl.gov
  • Numerous bug reports for code cleanliness (including one effecting 0.87.2)
• David Blom davidsblom@gmail.com
  • Added MaxAbs implementations
• Jake Bolewski jakebolewski@gmail.com
  • Made Python support much more robust
  • Fixed CMake OSX RPATH handling
  • Helped introduce Travis CI
• Rodrigo Canales rodrigo.canales@rwth-aachen.de
  • Fixed bugs in mkl::Trrk and xgemmt calls
• Jiahao Chen jiahao@mit.edu
  • Set up the CMake testing framework
  • Helped introduce Travis CI
• Martin Copik mcopik@gmail.com
  • Fixed PMRRR double lock free bug
  • Fixed ScaLAPACK GFORTRAN_LIB configuration bug
  • Fixed METIS and ParMETIS configuration bugs
• Aidan Dang danga@student.unimelb.edu.au
  • Reported bugs in SVD and submitted fix for 64-bit integer build
• Ron Estrin restrin@stanford.edu
  • Substantially improved the LLL performance
• Jeff Hammond jeff.science@gmail.com
  • Help with numerous toolchain issues (especially the Intel compilers)
• Yves Ineichen iff@yvesineichen.com
  • Contributed towards the current Debian packaging process
  • Numerous useful bug reports
• Georgios Kollias gkollias@us.ibm.com
  • Reported int -> BigFloat conversion issue effecting 0.87.2
• Ryan Lewis me@ryanlewis.net
  • Spearheaded the Fedora packaging
  • Setting up the (soon-to-be-integrated) Jenkins CI
• Yingzhou (Ryan) Li ryanli@stanford.edu
  • Added proper CMake project exports
  • Several bug reports on process grids with viewing processes
• Tim Moon tym1@stanford.edu
  • Added the high-performance complex triangular eigensolver (see https://arxiv.org/abs/1607.01477)
• Andreas Noack andreasnoackjensen@gmail.com
  • Helped introduce Travis CI
• Jack Poulson jack.poulson@gmail.com
  • Added Aggressive Early Deflation Hessenberg QR implementation
  • Added Divide and Conquer bidiagonal SVD
  • Added Divide and Conquer real symmetric tridiagonal EVP
  • Added lattice reduction functionality
  • Added Interior Point Methods and sparse generalized least squares methods
  • Extended El::Complex class to support DoubleDouble, QuadDouble, Quad, and BigFloat
  • Added MPI support for BigFloat
  • Introduced LaunchPad PPA
  • Adminstrivia and making the build system more robust
• Mukundhan Selvam Mukundhan.Selvam@mscsoftware.com
  • Bug reports for sparse-direct solvers
  • Bug reports for the Intel compilers
• Barry Smith bsmith@mcs.anl.gov
  • Numerous bug reports on code cleanliness
• Hong Zhang hzhang@mcs.anl.gov
  • Numerous bug reports on code cleanliness

Elemental version 0.87.5

Minor changes since 0.87.0

• Fixed UpdatedMappedDiagonal prototype in El/blas_like/level1/decl.hpp (to avoid undefined references)
• Fixed call to lin_solve::ScaLAPACKHelper in src/lapack_like/solve/Linear.cpp
• Avoided python global variables (which were not propagating on recent versions of OS X)
• Avoided compiler error from implicit conversions between El::Int and El::BigFloat for member variables
• Simplified src/core/mpi_register.cpp and avoided unfreed MPI memory
• Avoided unused variables
• Added support for reading SparseMatrix and DistSparseMatrix in MATRIX_MARKET format
• Fixed 64-bit integer builds
• Fixed bug in promotion of Quad
• Fixed a substantial amount of bit-rot in the Python interface and its examples
• Fixed CTest on Mac OS X

Notable functionality additions

• (Arbitrary-precision) real and complex Lenstra/Lenstra/Lovasz (LLL) lattice reduction
• (Arbitrary-precision) real and complex Block Korkine-Zolotarev (BKZ) and various enumeration heuristic extensions (BKZ 2.0 and y-sparse enumeration)
• (Arbitrary-precision) distributed divide-and-conquer real symmetric tridiagonal EVD
• (Arbitrary-precision) distributed divide-and-conquer bidiagonal SVD
• (Arbitrary-precision) distributed Aggressive Early Deflation Hessenberg QR algorithms
• (Arbitrary-precision) distributed high-performance level 3 BLAS complex triangular eigenvector computation
• (Arbitrary-precision) distributed high-performance pseudospectra
• (Arbitrary-precision) distributed real and complex sparse linear solvers (including a special interface for symmetric quasi-semidefinite matrices)
• (Arbitrary-precision) distributed real and complex generalized sparse least squares solvers (including LSE and GLM)
• (Arbitrary-precision) distributed dense and sparse Linear, Quadratic, and Second-Order Cone Programming

Packaging additions

• Ubuntu packages with a PPA at https://launchpad.net/~libelemental/+archive/ubuntu/ppa
• Redhat/Fedora packages https://copr.fedorainfracloud.org/coprs/rhl/elemental/

Relevant toolchain bugs

• GCC Release builds are (by default) blocked on OS X due to -O3 optimizations leading to a stack_not_16_byte_aligned_error error. Please see #181 for a more detailed discussion. The CMake flag -D EL_IGNORE_OSX_GCC_ALIGNMENT_PROBLEM=ON will prevent the error for OSX GCC Release builds.
• OpenMPI versions before 1.8.1 are prevented by the CMake configuration due to bugs in OpenMPI 1.6.5's handling of complex datatypes
• Intel compilers before version 17 update 1 will not properly compile Elemental (see Issue #177 )
• Compiling MPICH 3.2 with Clang on recent versions of OS X can lead to segfaults in MPID_Request_create within an MPI_Alltoallv call (see Issue #200 )
• MPICH must be configured with the --enable-two-level-namespace option on Mac OS X (see Issue #203 )

Significant contributors for this release

• Haim Avron haimav@post.tau.ac.il
  • Contributed towards the current Debian packaging process
  • Numerous useful bug reports (including one effecting 0.87.0)
• Satish Balay balay@msc.anl.gov
  • Numerous bug reports for code cleanliness (including one effecting 0.87.2)
• David Blom davidsblom@gmail.com
  • Added MaxAbs implementations
• Jake Bolewski jakebolewski@gmail.com
  • Made Python support much more robust
  • Fixed CMake OSX RPATH handling
  • Helped introduce Travis CI
• Rodrigo Canales rodrigo.canales@rwth-aachen.de
  • Fixed bugs in mkl::Trrk and xgemmt calls
• Jiahao Chen jiahao@mit.edu
  • Set up the CMake testing framework
  • Helped introduce Travis CI
• Martin Copik mcopik@gmail.com
  • Fixed PMRRR double lock free bug
  • Fixed ScaLAPACK GFORTRAN_LIB configuration bug
  • Fixed METIS and ParMETIS configuration bugs
• Aidan Dang danga@student.unimelb.edu.au
  • Reported bugs in SVD and submitted fix for 64-bit integer build
• Ron Estrin restrin@stanford.edu
  • Substantially improved the LLL performance
• Jeff Hammond jeff.science@gmail.com
  • Help with numerous toolchain issues (especially the Intel compilers)
• Yves Ineichen iff@yvesineichen.com
  • Contributed towards the current Debian packaging process
  • Numerous useful bug reports
• Georgios Kollias gkollias@us.ibm.com
  • Reported int -> BigFloat conversion issue effecting 0.87.2
• Ryan Lewis me@ryanlewis.net
  • Spearheaded the Fedora packaging
  • Setting up the (soon-to-be-integrated) Jenkins CI
• Yingzhou (Ryan) Li ryanli@stanford.edu
  • Added proper CMake project exports
  • Several bug reports on process grids with viewing processes
• Tim Moon tym1@stanford.edu
  • Added the high-performance complex triangular eigensolver (see https://arxiv.org/abs/1607.01477)
• Andreas Noack andreasnoackjensen@gmail.com
  • Helped introduce Travis CI
• Jack Poulson jack.poulson@gmail.com
  • Added Aggressive Early Deflation Hessenberg QR implementation
  • Added Divide and Conquer bidiagonal SVD
  • Added Divide and Conquer real symmetric tridiagonal EVP
  • Added lattice reduction functionality
  • Added Interior Point Methods and sparse generalized least squares methods
  • Extended El::Complex class to support DoubleDouble, QuadDouble, Quad, and BigFloat
  • Added MPI support for BigFloat
  • Introduced LaunchPad PPA
  • Adminstrivia and making the build system more robust
• Mukundhan Selvam Mukundhan.Selvam@mscsoftware.com
  • Bug reports for sparse-direct solvers
  • Bug reports for the Intel compilers
• Barry Smith bsmith@mcs.anl.gov
  • Numerous bug reports on code cleanliness
• Hong Zhang hzhang@mcs.anl.gov
  • Numerous bug reports on code cleanliness

Elemental version 0.87.4

Minor changes since 0.87.0

• Fixed UpdatedMappedDiagonal prototype in El/blas_like/level1/decl.hpp (to avoid undefined references)
• Fixed call to lin_solve::ScaLAPACKHelper in src/lapack_like/solve/Linear.cpp
• Avoided python global variables (which were not propagating on recent versions of OS X)
• Avoided compiler error from implicit conversions between El::Int and El::BigFloat for member variables
• Simplified src/core/mpi_register.cpp and avoided unfreed MPI memory
• Avoided unused variables
• Added support for reading SparseMatrix and DistSparseMatrix in MATRIX_MARKET format

Notable functionality additions

• (Arbitrary-precision) real and complex Lenstra/Lenstra/Lovasz (LLL) lattice reduction
• (Arbitrary-precision) real and complex Block Korkine-Zolotarev (BKZ) and various enumeration heuristic extensions (BKZ 2.0 and y-sparse enumeration)
• (Arbitrary-precision) distributed divide-and-conquer real symmetric tridiagonal EVD
• (Arbitrary-precision) distributed divide-and-conquer bidiagonal SVD
• (Arbitrary-precision) distributed Aggressive Early Deflation Hessenberg QR algorithms
• (Arbitrary-precision) distributed high-performance level 3 BLAS complex triangular eigenvector computation
• (Arbitrary-precision) distributed high-performance pseudospectra
• (Arbitrary-precision) distributed real and complex sparse linear solvers (including a special interface for symmetric quasi-semidefinite matrices)
• (Arbitrary-precision) distributed real and complex generalized sparse least squares solvers (including LSE and GLM)
• (Arbitrary-precision) distributed dense and sparse Linear, Quadratic, and Second-Order Cone Programming

Packaging additions

• Ubuntu packages with a PPA at https://launchpad.net/~libelemental/+archive/ubuntu/ppa
• Redhat/Fedora packages https://copr.fedorainfracloud.org/coprs/rhl/elemental/

Relevant toolchain bugs

• GCC Release builds are (by default) blocked on OSX due to -O3 optimizations leading to a stack_not_16_byte_aligned_error error. Please see #181 for a more detailed discussion. The CMake flag -D EL_IGNORE_OSX_GCC_ALIGNMENT_PROBLEM=ON will prevent the error for OSX GCC Release builds.
• OpenMPI versions before 1.8.1 are prevented by the CMake configuration due to bugs in OpenMPI 1.6.5's handling of complex datatypes
• Intel compilers before version 17 update 1 will not properly compile Elemental (see Issue #177 )
• Compiling MPICH with Clang on recent versions of OS X can lead to segfaults in MPID_Request_create within an MPI_Alltoallv call (see Issue #200 )

Significant contributors for this release

• Haim Avron haimav@post.tau.ac.il
  • Contributed towards the current Debian packaging process
  • Numerous useful bug reports (including one effecting 0.87.0)
• Satish Balay balay@msc.anl.gov
  • Numerous bug reports for code cleanliness (including one effecting 0.87.2)
• David Blom davidsblom@gmail.com
  • Added MaxAbs implementations
• Jake Bolewski jakebolewski@gmail.com
  • Made Python support much more robust
  • Fixed CMake OSX RPATH handling
  • Helped introduce Travis CI
• Rodrigo Canales rodrigo.canales@rwth-aachen.de
  • Fixed bugs in mkl::Trrk and xgemmt calls
• Jiahao Chen jiahao@mit.edu
  • Set up the CMake testing framework
  • Helped introduce Travis CI
• Martin Copik mcopik@gmail.com
  • Fixed PMRRR double lock free bug
  • Fixed ScaLAPACK GFORTRAN_LIB configuration bug
  • Fixed METIS and ParMETIS configuration bugs
• Ron Estrin restrin@stanford.edu
  • Substantially improved the LLL performance
• Jeff Hammond jeff.science@gmail.com
  • Help with numerous toolchain issues (especially the Intel compilers)
• Yves Ineichen iff@yvesineichen.com
  • Contributed towards the current Debian packaging process
  • Numerous useful bug reports
• Georgios Kollias gkollias@us.ibm.com
  • Reported int -> BigFloat conversion issue effecting 0.87.2
• Ryan Lewis me@ryanlewis.net
  • Spearheaded the Fedora packaging
  • Setting up the (soon-to-be-integrated) Jenkins CI
• Yingzhou (Ryan) Li ryanli@stanford.edu
  • Added proper CMake project exports
  • Several bug reports on process grids with viewing processes
• Tim Moon tym1@stanford.edu
  • Added the high-performance complex triangular eigensolver (see https://arxiv.org/abs/1607.01477)
• Andreas Noack andreasnoackjensen@gmail.com
  • Helped introduce Travis CI
• Jack Poulson jack.poulson@gmail.com
  • Added Aggressive Early Deflation Hessenberg QR implementation
  • Added Divide and Conquer bidiagonal SVD
  • Added Divide and Conquer real symmetric tridiagonal EVP
  • Added lattice reduction functionality
  • Added Interior Point Methods and sparse generalized least squares methods
  • Extended El::Complex class to support DoubleDouble, QuadDouble, Quad, and BigFloat
  • Added MPI support for BigFloat
  • Introduced LaunchPad PPA
  • Adminstrivia and making the build system more robust
• Mukundhan Selvam Mukundhan.Selvam@mscsoftware.com
  • Bug reports for sparse-direct solvers
  • Bug reports for the Intel compilers
• Barry Smith bsmith@mcs.anl.gov
  • Numerous bug reports on code cleanliness
• Hong Zhang hzhang@mcs.anl.gov
  • Numerous bug reports on code cleanliness

Elemental version 0.87.3

Minor changes since 0.87.0

• Fixed UpdatedMappedDiagonal prototype in El/blas_like/level1/decl.hpp (to avoid undefined references)
• Fixed call to lin_solve::ScaLAPACKHelper in src/lapack_like/solve/Linear.cpp
• Avoided python global variables (which were not propagating on recent versions of OS X)
• Avoided compiler error from implicit conversions between El::Int and El::BigFloat for member variables

Notable functionality additions

• (Arbitrary-precision) real and complex Lenstra/Lenstra/Lovasz (LLL) lattice reduction
• (Arbitrary-precision) real and complex Block Korkine-Zolotarev (BKZ) and various enumeration heuristic extensions (BKZ 2.0 and y-sparse enumeration)
• (Arbitrary-precision) distributed divide-and-conquer real symmetric tridiagonal EVD
• (Arbitrary-precision) distributed divide-and-conquer bidiagonal SVD
• (Arbitrary-precision) distributed Aggressive Early Deflation Hessenberg QR algorithms
• (Arbitrary-precision) distributed high-performance level 3 BLAS complex triangular eigenvector computation
• (Arbitrary-precision) distributed high-performance pseudospectra
• (Arbitrary-precision) distributed real and complex sparse linear solvers (including a special interface for symmetric quasi-semidefinite matrices)
• (Arbitrary-precision) distributed real and complex generalized sparse least squares solvers (including LSE and GLM)
• (Arbitrary-precision) distributed dense and sparse Linear, Quadratic, and Second-Order Cone Programming

Packaging additions

• Ubuntu packages with a PPA at https://launchpad.net/~libelemental/+archive/ubuntu/ppa
• Redhat/Fedora packages https://copr.fedorainfracloud.org/coprs/rhl/elemental/

Relevant toolchain bugs

• GCC Release builds are (by default) blocked on OSX due to -O3 optimizations leading to a stack_not_16_byte_aligned_error error. Please see #181 for a more detailed discussion. The CMake flag -D EL_IGNORE_OSX_GCC_ALIGNMENT_PROBLEM=ON will prevent the error for OSX GCC Release builds.
• OpenMPI versions before 1.8.1 are prevented by the CMake configuration due to bugs in OpenMPI 1.6.5's handling of complex datatypes
• Intel compilers before version 17 update 1 will not properly compile Elemental (see Issue #177 )
• Compiling MPICH with Clang on recent versions of OS X can lead to segfaults in MPID_Request_create within an MPI_Alltoallv call (see Issue #200 )

Significant contributors for this release

• Haim Avron haimav@post.tau.ac.il
  • Contributed towards the current Debian packaging process
  • Numerous useful bug reports (including one effecting 0.87.0)
• Satish Balay balay@msc.anl.gov
  • Numerous bug reports for code cleanliness
• David Blom davidsblom@gmail.com
  • Added MaxAbs implementations
• Jake Bolewski jakebolewski@gmail.com
  • Made Python support much more robust
  • Fixed CMake OSX RPATH handling
  • Helped introduce Travis CI
• Rodrigo Canales rodrigo.canales@rwth-aachen.de
  • Fixed bugs in mkl::Trrk and xgemmt calls
• Jiahao Chen jiahao@mit.edu
  • Set up the CMake testing framework
  • Helped introduce Travis CI
• Martin Copik mcopik@gmail.com
  • Fixed PMRRR double lock free bug
  • Fixed ScaLAPACK GFORTRAN_LIB configuration bug
  • Fixed METIS and ParMETIS configuration bugs
• Ron Estrin restrin@stanford.edu
  • Substantially improved the LLL performance
• Jeff Hammond jeff.science@gmail.com
  • Help with numerous toolchain issues (especially the Intel compilers)
• Yves Ineichen iff@yvesineichen.com
  • Contributed towards the current Debian packaging process
  • Numerous useful bug reports
• Georgios Kollias gkollias@us.ibm.com
  • Reported int -> BigFloat conversion issue effecting 0.87.2
• Ryan Lewis me@ryanlewis.net
  • Spearheaded the Fedora packaging
  • Setting up the (soon-to-be-integrated) Jenkins CI
• Yingzhou (Ryan) Li ryanli@stanford.edu
  • Added proper CMake project exports
  • Several bug reports on process grids with viewing processes
• Tim Moon tym1@stanford.edu
  • Added the high-performance complex triangular eigensolver (see https://arxiv.org/abs/1607.01477)
• Andreas Noack andreasnoackjensen@gmail.com
  • Helped introduce Travis CI
• Jack Poulson jack.poulson@gmail.com
  • Added Aggressive Early Deflation Hessenberg QR implementation
  • Added Divide and Conquer bidiagonal SVD
  • Added Divide and Conquer real symmetric tridiagonal EVP
  • Added lattice reduction functionality
  • Added Interior Point Methods and sparse generalized least squares methods
  • Extended El::Complex class to support DoubleDouble, QuadDouble, Quad, and BigFloat
  • Added MPI support for BigFloat
  • Introduced LaunchPad PPA
  • Adminstrivia and making the build system more robust
• Mukundhan Selvam Mukundhan.Selvam@mscsoftware.com
  • Bug reports for sparse-direct solvers
  • Bug reports for the Intel compilers
• Barry Smith bsmith@mcs.anl.gov
  • Numerous bug reports on code cleanliness
• Hong Zhang hzhang@mcs.anl.gov
  • Numerous bug reports on code cleanliness

Elemental version 0.87.2

Minor changes since 0.87.0

• Fixed UpdatedMappedDiagonal prototype in El/blas_like/level1/decl.hpp (to avoid undefined references)
• Fixed call to lin_solve::ScaLAPACKHelper in src/lapack_like/solve/Linear.cpp

Notable functionality additions

• (Arbitrary-precision) real and complex Lenstra/Lenstra/Lovasz (LLL) lattice reduction
• (Arbitrary-precision) real and complex Block Korkine-Zolotarev (BKZ) and various enumeration heuristic extensions (BKZ 2.0 and y-sparse enumeration)
• (Arbitrary-precision) distributed divide-and-conquer real symmetric tridiagonal EVD
• (Arbitrary-precision) distributed divide-and-conquer bidiagonal SVD
• (Arbitrary-precision) distributed Aggressive Early Deflation Hessenberg QR algorithms
• (Arbitrary-precision) distributed high-performance level 3 BLAS complex triangular eigenvector computation
• (Arbitrary-precision) distributed high-performance pseudospectra
• (Arbitrary-precision) distributed real and complex sparse linear solvers (including a special interface for symmetric quasi-semidefinite matrices)
• (Arbitrary-precision) distributed real and complex generalized sparse least squares solvers (including LSE and GLM)
• (Arbitrary-precision) distributed dense and sparse Linear, Quadratic, and Second-Order Cone Programming

Packaging additions

• Ubuntu packages with a PPA at https://launchpad.net/~libelemental/+archive/ubuntu/ppa
• Redhat/Fedora packages https://copr.fedorainfracloud.org/coprs/rhl/elemental/

Relevant toolchain bugs

• GCC Release builds are (by default) blocked on OSX due to -O3 optimizations leading to a stack_not_16_byte_aligned_error error. Please see #181 for a more detailed discussion. The CMake flag -D EL_IGNORE_OSX_GCC_ALIGNMENT_PROBLEM=ON will prevent the error for OSX GCC Release builds.
• OpenMPI versions before 1.8.1 are prevented by the CMake configuration due to bugs in OpenMPI 1.6.5's handling of complex datatypes

Major contributors for this release

• Haim Avron haimav@post.tau.ac.il
  • Contributed towards the current Debian packaging process
  • Numerous useful bug reports (including one effecting 0.87.0)
• David Blom davidsblom@gmail.com
  • Added MaxAbs implementations
• Jake Bolewski jakebolewski@gmail.com
  • Made Python support much more robust
  • Fixed CMake OSX RPATH handling
  • Helped introduce Travis CI
• Rodrigo Canales rodrigo.canales@rwth-aachen.de
  • Fixed bugs in mkl::Trrk and xgemmt calls
• Jiahao Chen jiahao@mit.edu
  • Set up the CMake testing framework
  • Helped introduce Travis CI
• Martin Copik mcopik@gmail.com
  • Fixed PMRRR double lock free bug
  • Fixed ScaLAPACK GFORTRAN_LIB configuration bug
  • Fixed METIS and ParMETIS configuration bugs
• Ron Estrin restrin@stanford.edu
  • Substantially improved the LLL performance
• Jeff Hammond jeff.science@gmail.com
  • Help with numerous toolchain issues (especially the Intel compilers)
• Yves Ineichen iff@yvesineichen.com
  • Contributed towards the current Debian packaging process
  • Numerous useful bug reports
• Ryan Lewis me@ryanlewis.net
  • Spearheaded the Fedora packaging
  • Setting up the (soon-to-be-integrated) Jenkins CI
• Yingzhou (Ryan) Li ryanli@stanford.edu
  • Added proper CMake project exports
  • Several bug reports on process grids with viewing processes
• Tim Moon tym1@stanford.edu
  • Added the high-performance complex triangular eigensolver (see https://arxiv.org/abs/1607.01477)
• Andreas Noack andreasnoackjensen@gmail.com
  • Helped introduce Travis CI
• Jack Poulson jack.poulson@gmail.com
  • Added Aggressive Early Deflation Hessenberg QR implementation
  • Added Divide and Conquer bidiagonal SVD
  • Added Divide and Conquer real symmetric tridiagonal EVP
  • Added lattice reduction functionality
  • Added Interior Point Methods and sparse generalized least squares methods
  • Extended El::Complex class to support DoubleDouble, QuadDouble, Quad, and BigFloat
  • Added MPI support for BigFloat
  • Introduced LaunchPad PPA
  • Adminstrivia and making the build system more robust
• Mukundhan Selvam Mukundhan.Selvam@mscsoftware.com
  • Bug reports for sparse-direct solvers
  • Bug reports for the Intel compilers

Elemental version 0.87.1

Minor changes since 0.87.0

• Fixed UpdatedMappedDiagonal prototype in El/blas_like/level1/decl.hpp (to avoid undefined references)

Notable functionality additions

• (Arbitrary-precision) real and complex Lenstra/Lenstra/Lovasz (LLL) lattice reduction
• (Arbitrary-precision) real and complex Block Korkine-Zolotarev (BKZ) and various enumeration heuristic extensions (BKZ 2.0 and y-sparse enumeration)
• (Arbitrary-precision) distributed divide-and-conquer real symmetric tridiagonal EVD
• (Arbitrary-precision) distributed divide-and-conquer bidiagonal SVD
• (Arbitrary-precision) distributed Aggressive Early Deflation Hessenberg QR algorithms
• (Arbitrary-precision) distributed high-performance level 3 BLAS complex triangular eigenvector computation
• (Arbitrary-precision) distributed high-performance pseudospectra
• (Arbitrary-precision) distributed real and complex sparse linear solvers (including a special interface for symmetric quasi-semidefinite matrices)
• (Arbitrary-precision) distributed real and complex generalized sparse least squares solvers (including LSE and GLM)
• (Arbitrary-precision) distributed dense and sparse Linear, Quadratic, and Second-Order Cone Programming

Packaging additions

• Ubuntu packages with a PPA at https://launchpad.net/~libelemental/+archive/ubuntu/ppa
• Redhat/Fedora packages https://copr.fedorainfracloud.org/coprs/rhl/elemental/

Relevant toolchain bugs

• GCC Release builds are (by default) blocked on OSX due to -O3 optimizations leading to a stack_not_16_byte_aligned_error error. Please see #181 for a more detailed discussion. The CMake flag -D EL_IGNORE_OSX_GCC_ALIGNMENT_PROBLEM=ON will prevent the error for OSX GCC Release builds.
• OpenMPI versions before 1.8.1 are prevented by the CMake configuration due to bugs in OpenMPI 1.6.5's handling of complex datatypes

Major contributors for this release

• Haim Avron haimav@post.tau.ac.il
  • Contributed towards the current Debian packaging process
  • Numerous useful bug reports (including one effecting 0.87.0)
• David Blom davidsblom@gmail.com
  • Added MaxAbs implementations
• Jake Bolewski jakebolewski@gmail.com
  • Made Python support much more robust
  • Fixed CMake OSX RPATH handling
  • Helped introduce Travis CI
• Rodrigo Canales rodrigo.canales@rwth-aachen.de
  • Fixed bugs in mkl::Trrk and xgemmt calls
• Jiahao Chen jiahao@mit.edu
  • Set up the CMake testing framework
  • Helped introduce Travis CI
• Martin Copik mcopik@gmail.com
  • Fixed PMRRR double lock free bug
  • Fixed ScaLAPACK GFORTRAN_LIB configuration bug
  • Fixed METIS and ParMETIS configuration bugs
• Ron Estrin restrin@stanford.edu
  • Substantially improved the LLL performance
• Jeff Hammond jeff.science@gmail.com
  • Help with numerous toolchain issues (especially the Intel compilers)
• Yves Ineichen iff@yvesineichen.com
  • Contributed towards the current Debian packaging process
  • Numerous useful bug reports
• Ryan Lewis me@ryanlewis.net
  • Spearheaded the Fedora packaging
  • Setting up the (soon-to-be-integrated) Jenkins CI
• Yingzhou (Ryan) Li ryanli@stanford.edu
  • Added proper CMake project exports
  • Several bug reports on process grids with viewing processes
• Tim Moon tym1@stanford.edu
  • Added the high-performance complex triangular eigensolver (see https://arxiv.org/abs/1607.01477)
• Andreas Noack andreasnoackjensen@gmail.com
  • Helped introduce Travis CI
• Jack Poulson jack.poulson@gmail.com
  • Added Aggressive Early Deflation Hessenberg QR implementation
  • Added Divide and Conquer bidiagonal SVD
  • Added Divide and Conquer real symmetric tridiagonal EVP
  • Added lattice reduction functionality
  • Added Interior Point Methods and sparse generalized least squares methods
  • Extended El::Complex class to support DoubleDouble, QuadDouble, Quad, and BigFloat
  • Added MPI support for BigFloat
  • Introduced LaunchPad PPA
  • Adminstrivia and making the build system more robust
• Mukundhan Selvam Mukundhan.Selvam@mscsoftware.com
  • Bug reports for sparse-direct solvers
  • Bug reports for the Intel compilers

Elemental version 0.87

Notable functionality additions

• (Arbitrary-precision) real and complex Lenstra/Lenstra/Lovasz (LLL) lattice reduction
• (Arbitrary-precision) real and complex Block Korkine-Zolotarev (BKZ) and various enumeration heuristic extensions (BKZ 2.0 and y-sparse enumeration)
• (Arbitrary-precision) distributed divide-and-conquer real symmetric tridiagonal EVD
• (Arbitrary-precision) distributed divide-and-conquer bidiagonal SVD
• (Arbitrary-precision) distributed Aggressive Early Deflation Hessenberg QR algorithms
• (Arbitrary-precision) distributed high-performance level 3 BLAS complex triangular eigenvector computation
• (Arbitrary-precision) distributed high-performance pseudospectra
• (Arbitrary-precision) distributed real and complex sparse linear solvers (including a special interface for symmetric quasi-semidefinite matrices)
• (Arbitrary-precision) distributed real and complex generalized sparse least squares solvers (including LSE and GLM)
• (Arbitrary-precision) distributed dense and sparse Linear, Quadratic, and Second-Order Cone Programming

Packaging additions

• Ubuntu packages with a PPA at https://launchpad.net/~libelemental/+archive/ubuntu/ppa
• Redhat/Fedora packages https://copr.fedorainfracloud.org/coprs/rhl/elemental/

Relevant toolchain bugs

• GCC Release builds are (by default) blocked on OSX due to -O3 optimizations leading to a stack_not_16_byte_aligned_error error. Please see #181 for a more detailed discussion. The CMake flag -D EL_IGNORE_OSX_GCC_ALIGNMENT_PROBLEM=ON will prevent the error for OSX GCC Release builds.
• OpenMPI versions before 1.8.1 are prevented by the CMake configuration due to bugs in OpenMPI 1.6.5's handling of complex datatypes

Major contributors for this release

• Haim Avron haimav@post.tau.ac.il
  • Contributed towards the current Debian packaging process
  • Numerous useful bug reports
• David Blom davidsblom@gmail.com
  • Added MaxAbs implementations
• Jake Bolewski jakebolewski@gmail.com
  • Made Python support much more robust
  • Fixed CMake OSX RPATH handling
  • Helped introduce Travis CI
• Rodrigo Canales rodrigo.canales@rwth-aachen.de
  • Fixed bugs in mkl::Trrk and xgemmt calls
• Jiahao Chen jiahao@mit.edu
  • Set up the CMake testing framework
  • Helped introduce Travis CI
• Martin Copik mcopik@gmail.com
  • Fixed PMRRR double lock free bug
  • Fixed ScaLAPACK GFORTRAN_LIB configuration bug
  • Fixed METIS and ParMETIS configuration bugs
• Ron Estrin restrin@stanford.edu
  • Substantially improved the LLL performance
• Jeff Hammond jeff.science@gmail.com
  • Help with numerous toolchain issues (especially the Intel compilers)
• Yves Ineichen iff@yvesineichen.com
  • Contributed towards the current Debian packaging process
  • Numerous useful bug reports
• Ryan Lewis me@ryanlewis.net
  • Spearheaded the Fedora packaging
  • Setting up the (soon-to-be-integrated) Jenkins CI
• Yingzhou (Ryan) Li ryanli@stanford.edu
  • Added proper CMake project exports
  • Several bug reports on process grids with viewing processes
• Tim Moon tym1@stanford.edu
  • Added the high-performance complex triangular eigensolver (see https://arxiv.org/abs/1607.01477)
• Andreas Noack andreasnoackjensen@gmail.com
  • Helped introduce Travis CI
• Jack Poulson jack.poulson@gmail.com
  • Added Aggressive Early Deflation Hessenberg QR implementation
  • Added Divide and Conquer bidiagonal SVD
  • Added Divide and Conquer real symmetric tridiagonal EVP
  • Added lattice reduction functionality
  • Added Interior Point Methods and sparse generalized least squares methods
  • Extended El::Complex class to support DoubleDouble, QuadDouble, Quad, and BigFloat
  • Added MPI support for BigFloat
  • Introduced LaunchPad PPA
  • Adminstrivia and making the build system more robust
• Mukundhan Selvam Mukundhan.Selvam@mscsoftware.com
  • Bug reports for sparse-direct solvers
  • Bug reports for the Intel compilers

Version 0.85

Elemental 0.85

The official release for version 0.85 of Elemental is now available:
libelemental.org/pub/releases/Elemental-0.85.tgz

Added functionality

• Sparse-direct Cholesky and Bunch-Kaufman due to merging Clique into Elemental
• Sparse-direct least squares, ridge regression, and Tikhonov regularization
• Sparse Herk and various other BLAS1-like routines
• A (nearly full) manually-constructed C interface
• A (nearly full) manually-constructed Python interface, including extensions of Display functionality to matplotlib (for matrices) and networkx (for graphs)
• Support for Read, Write, and ReadWrite matrix proxies so that routines implemented for specific datatypes and/or data distributions can be extended to more general datatypes and arbitrary distribution choices
• Essentially all distributed routines in the library were generalized to AbstractDistMatrix for convenience (using proxies)
• Single-precision Hermitian eigensolvers are now supported (via proxies which convert to double-precision for PMRRR)
• Added Three-valued and Bernoulli, GEPPGrowth and Druinsky-Toledo, Fourier-Identity ("spikes and sines") and Walsh-Identity ("spikes and Hadamard") matrices
• Added ability to compute coherence
• Added ability to use operator() to extract contiguous submatrices (and converted library)
• Extended control of SVD and LDL via new SVDCtrl and LDLCtrl structures
• Improved performance of IO routines when ColStride() and/or RowStride() are 1

Bug fixes

• Fixed a variety of compilation errors which did not appear with g++
• Fixed an (uncommon) bug in distributed HermitianFrobeniusNorm
• Added missing shrink of the phase vector in qr::BusingerGolub
• Added missing scalar argument to Matrix::UpdateDiagonal
• Fixed Ehrenfest matrix generation
• Fixed indexing of Householder phases in sequential Bidiag
• Fixed offset used by rq::ExplicitTriang
• Fixed BlockDistMatrix version of MATRIX_MARKET Read
• Fixed BLAS wrappers for complex herk, her2k, her, and her2
• Fixed PURE/HYBRID CMake detection (thanks to Richard Boyd)

Refactoring

• Removed MakeTriangular (due to the more general MakeTrapezoidal)
• Replaced AxpyTriangle with AxpyTrapezoid
• Added a control structure for Bisect
• Significantly refactored/simplified Trr2k
• Removed spurious integer argument to TriW
• Removed Riemann matrix due to vague definition (and overlap with Redheffer)
• Removed hyphens in directory names to avoid python conflict

Name changes

• Renamed namespace "elem" to "El", and "elem.hpp" to "El.hpp"
• Moved auxiliary PMRRR headers into pmrrr/ subfolder
• "Pseudospectra" -> {"SpectralPortrait","SpectralWindow","SpectralCloud"}
• Better organization/naming for explicit QR/RQ/LQ factorizations

Thanks

• Richard Boyd (of GTRI) for reporting the PURE/HYBRID configuration detection problem
• Field van Zee (of UT Austin) for clarifying the {c,z}her2 and {c,z}her2k scalar argument conventions
• Rodrigo Canales for noticing and fixing several missing static instantiations
• Yingzhou (Ryan) Li for reporting the vecLib/Accelerate issue

Relevant unmerged forks

• Rodrigo Canales's R interface: https://github.com/rocanale/Elemental
• Sayan Ghosh's one-sided Axpy interface: https://github.com/sg0/Elemental

Elemental 0.84

Documentation:
[HTML] http://libelemental.org/documentation/0.84/
[PDF] http://libelemental.org/documentation/elem-0.84.pdf

The significant changes since release 0.83 are listed below (and a number of bugs in the release candidate for 0.84 were fixed).

New Functionality

Fundamental additions

• Low-rank Cholesky up-/down-dating (CholMod)
• Rank-one updates to LU factorizations (LUMod)
• Added Generalized RQ and QR factorizations and associated General Linear Model (GLM) and Equality-constrained Least Squares (LSE) solvers
• Pseudospectral computations can now be driven by various kernels, including
  multi-shift Hessenberg/(quasi-)triangular solves. There is also now support a
  variety of configurations for outputting snapshots of the results
• Multi-shift Hessenberg solves (MultiShiftHessSolve)
• Multi-shift quasi-triangular solves (MultiShiftQuasiTrsm)
• Quasi-triangular solves (QuasiTrsv/QuasiTrsm)
• Hyperbolic Householder transforms
• Basic support for a block version of DistMatrix (BlockDistMatrix)
• Support for parallel Schur decompositions via ScaLAPACK's Hessenberg QR algs.
• Support for redistributing between DistMatrix and BlockDistMatrix [MC,MR] dists.
• All user-level routines now use permutation vectors instead of pivot vectors
• Alternating Direction Method of Multipliers (ADMM) implementations of Basis Pursuit, Linear and Quadratic Programs, and Sparse Inverse Covariance Selection

Minor/incremental improvements

• Added {lq,rq,qr}::SolveAfter
• Added SymmetricSolve and HermitianSolve
• Support for converting real (quasi-triangular) Schur forms to complex
  (triangular) form
• Support for computing the eigenvalues of quasi-triangular matrices
• LQ/QR/RQ factorizations now force positive (or zero) diagonal entries in the
  resulting triangular matrix
• Grid now supports both row-major and column-major orderings
• Support for diagonal scalings of trapezoidal matrices (DiagonalScaleTrapezoid)
• Added Global{Col,Row} and Local{Col,Row}Offset member functions to DistMatrix
• Norm and Max now support more data distributions
• Min and Max implementations (which do not use the absolute values)
• Added Bull's Head, Hatano-Nelson, random Helmholtz Green's, Trefethen,
  Triangle, and Whale matrices.

Instrumentation/visualization/testing

• More file formats for Read and Write (e.g., ASCII and MATRIX_MARKET)
• Display windows are now strictly sized according to the size of the matrix

Maintenance

Library bugfixes

• Fixed several small memory leaks in Grid
• AbstractDistMatrix::Empty() now recomputes shifts to ensure the matrix is kept
  in a legal state
• Moves of non-views to views are now converted to copies
• Fixed deflation bug in PMRRR when no eigenvectors are requested
• Fixed bugs in ApplyPackedReflectors, QuasiDiagonalScale, TriangularInverse, Trr, and Trsv

Maintenance/syntax

• Algorithmic options are now handled via control structures with default
  constructors
• Preprocessor definitions and macros now namespaced with "ELEM"
• Grid argument to DistMatrix::[Locked]Attach was moved before the dependent
  alignment arguments
• Added a 'Mod' routine which supports modular arithmetic with negative integers
• Copy assignments now return non-const references
• Move constructors are now "noexcept"
• Checks were added to ensure DistMatrix views are not improperly aligned
• PMRRR (and therefore Elemental) no longer requires a Fortran compiler to build
• Renamed "ShiftedTrsm" to "MultiShiftTrsm" and placed in BLAS3
• Renamed "Min" and "Max" to "MinAbs" and "MaxAbs"
• Renamed "Inertia" to "InertiaType" and "HermitianInertia" to "Inertia"
• The unnecessary Orientation arguments were removed from QuasiDiagonal{Scale,Solve}
• All interfaces now assume the usage of 'left' diagonals, which use an offset relative to the diagonal which contains the upper-left entry

Documentation

• Documentation for BlockDistMatrix is currently missing

Build system

• Several bugs fixed in detection of support for C++11 random number generation
• Configuration tests moved into separate files

Python interface

• The python interface was removed due to SWIG's lack of C++11 support,
  the lack of a maintainer for the interface, and the fact that a manual
  C interface is planned.

Thanks

• Jed Brown for suggesting the preprocessor namespacing
• Drew Lewis for reporting the TriangularInverse bug