STRUMPACK v8.0.0

• New experimental sparse symmetric solver (CUDA only)
• SZ3 compression as an alternative to ZFP
• Many BLR improvements
  • GPU performance improvements, making KBLaS optional
  • Fixes in BLR COLWISE compression
• Added ZFP compression accuracy mode as alternative to precision mode.
  • Accuracy mode is now the default. (set accuracy to negative value to use precision mode)
• Various HIP and SYCL fixes
• Update (PT)Scotch dependency, now requiring scotch >= 7.0.4 (build with CMake)
• Update ButterflyPACK interface, now requiring ButterflyPACK >= 3.2.0.
• Remove dynamic_cast from header files

STRUMPACK 7.2.0

• Fix for sparse solve with MAGMA with 1 MPI rank
• suppress several warnings
• small bugfix in BLR partitioning in sparse solver
• SYCL CMake compilation fix
• In StructuredMatrix interface, construct_from_elements now takes
  point geometry for faster HSS compression
• In StructuredMatrix interface, BLR compress_and_factor is now
  supported

STRUMPACK v7.1.4

• Memory leak fix from MPI_Datatypes
• Set RPATH in strumpack library
• Add counting of subnormal number in the sparse factors
• Changes in the BLR compression tolerances in the sparse solver,
  using a scaled absolute tolerance
• Fixes in the sparse solver using MAGMA, resetting error codes
  which show up in larger systems, but are not actually errors.
• Set SOVERSION
• Update CMake for HIP, using enable_language(HIP), requires CMake 3.21

STRUMPACK 7.1.3

Workaround for SLATE <= 20220700

STRUMPACK 7.1.2

Small bugfix

STRUMPACK 7.1.1

ROCm compilation fix

STRUMPACK 7.1.0

• Bugfix in matrix equilibration code
• Several bugfixes, especially for SLATE and large problems on GPU
• Sparse triangular solve on the GPU when using MAGMA
• Other MAGMA fixes for the sparse direct solver (MAGMA still optional)
• New HSS random sketching operators based on sparse Johnson Lindestrauss
• Fix for HODLRMatrix construction from elements, or blocks
• Compilation fixes for NVHPC compiler
• SYCL updates
• Add lapmr routines, which are not available in Mac LAPACK implementations
• Support newer ( >= 1.0) ZFP versions
• Fixes for clang 15
• Add NDBFS GPU matrix ordering code

STRUMPACK 7.0.1

v7.0.1

STRUMPACK v7.0.1

STRUMPACK 7.0.0

• Many bugfixes and general improvements.
• Important fixes in the GPU code, and in the usage of SLATE
  (GPU capable ScaLAPACK replacement).
• The default ordering now uses METIS_NodeND, instead of the
  (undocumented) METIS_NodeNDP routine. This can impact performance,
  or for some problems lead to stack overflow, but for others it
  drastically reduces memory usage. The old behavior can be restored
  with --sp_enable_METIS_NodeNDP.

STRUMPACK 6.3.1

• Fix for setting CUDA/HIP device when there are multiple, but MPI was not initialized
• Memory leak fix in distributed memory GPU code
• Fixed small memory leaks from MPI datatypes
• Change in BLR algorithm selection options
• Changed default blocksize for 2D block cyclic distribution when using SLATE to 512
• Add 64bit support in the matching (MC64)
• Fix installation of Fortran modules