12/14/2012: Elemental 0.77¶
Features¶
Nuclear norm, two-norm, and condition number routines
Hilbert-Schmidt inner products
Log barrier and log-det divergence routines for HPD matrices
More special matrices (e.g., Jacobi matrices for Legendre polynomials)
Several improved algorithms for Trmm and Trsm (thanks to Bryan Marker)
Greatly lowered communication in Trsv
Hegst has been split into TwoSidedTrmm/TwoSidedTrsm and extended to handle more general triangular matrices
Trtrsm partially implemented (triangular solve against triangular matrix)
Better command-line argument processing (via Choice)
There are now Blue Gene/Q toolchain files (thanks to Jeff Hammond)
‘elemvariables’ Makefile include is now more robust
Bug fixes¶
Fixed mishandling of input buffers for PMRRR (the interface cannot be const since the buffers are modified)
Avoided bug in HybridDebug mode caused by modifying the call stack from within an OpenMP loop (originally pointed out by Miles Lubin)
Miscellaneous¶
Driver for HermitianEig now allows for testing clustered eigenvalues
Removed GFlops utility drivers since they were better left to the drivers
New BSD License is now pointed to instead of listed in every file
Restructuring of implementations within header files
Open issues¶
Forcing PMRRR to avoid threading in Pure builds when launched in a multi-threaded environment