CHANGELOG

2024.05.31

• Add shared library version (ABI version 1.0.0)
• Update enum parameters to have to_string, from_string; deprecate <enum>2str, str2<enum>
• Changed methods to enums; renamed some values and deprecated old values
• Added "all vectors" case to SVD
• Fixed SVD for slightly tall case (m > n but not m >> n)
• Removed some deprecated functions
• Deprecated tile life
• Moved Tile routines to slate::tile namespace
• Added slate_matgen matrix generation library, factored out from testers
• Added slate::set variant that takes lambda
• Updated LAPACK API and ScaLAPACK API
• Fixed C and Fortran API. Added examples and CI tests for C and Fortran
• Improved handling of non-uniform tile sizes on GPUs
• Improved GPU-to-GPU communication
• Added info error check to Cholesky (posv, potrf)
• Added internal timers to testers; use tester --timer-level 2

2023.11.05

• Fix variable block sizes
• Fix tau in LQ tester
• Update examples for Users Guide
• Fix CUDA sync in Frobenius norm
• Add random butterfly transform (RBT) solver
• Use blas_int in scalapack wrappers, towards supporting int64
• Fix Cholesky QR test with well-conditioned matrix
• Add info check in LU for singular matrix
• Fix SVD tester for all vectors
• Use multi-threaded Intel MKL to improve eig and svd
• Add arbitrary batch regions in set
• Add timers in gesv, posv, gels, heev, svd
• Improve support for 2D GPU grids and lambda constructors
• Fix ROCm complex for ROCm 5.6
• Merge Cholesky potrf Host and Device implementations
• Remove tile life from QR, LQ, add routines
• Fix test matrix generation
• Cleanup MOSI, move to Tile class
• Add zerocol test matrix variant
• Fix receive count
• Use GPU-to-GPU copies
• Fix tileMB, tileNb
• Improve LU left pivoting for target device

2023.08.25

• Added oneMKL/SYCL support
• Added singular value decomposition (SVD) vectors
• Deprecated gesvd in favor of svd routine name
• Use yyyy.mm.dd version scheme, instead of yyyy.mm.release
• Improved support for Intel clang compiler
• Updated CMake to use find_package( CUDAToolkit )
• Updated LU to left pivot using target origin
• Changed gridinfo to return 1x1 grid if only 1 MPI process
• Disabled multi-threaded bcast by default, which caused hangs on Frontier
• Fixed CALU workspace bug for float
• Fixed trsm bug with large A, complex, right, conj-trans
• More robust Makefile configure doesn't require CUDA or ROCm to be in compiler search paths (CPATH, LIBRARY_PATH, etc.)

2023.06.00

• Moved repo to GitHub: https://github.com/icl-utk-edu/slate
• Added Hermitian eigenvectors using divide and conquer algorithm
• Added CALU variant of LU factorization
• Added mixed-precision GMRES solver
• Added GPU-aware MPI support using SLATE_GPU_AWARE_MPI environment variable
• Improved CALU and QR performance by moving panel operations to the GPU
• Update to use BLAS++ queues for all operations, to support oneAPI
• Update test matrix generator so random matrices are the same regardless of MPI distribution
• Fixed gemm and trsm when n is small (stationary A case)
• Enabled examples to be used as smoke tests to verify library installation
• Numerous bug fixes

2022.07.00

• Improved performance of QR factorization on GPUs by moving panel to GPU: 5.5x faster on tall-skinny problem
• Added Cholesky QR cholqr; added as option in least squares solver, gels
• Added GPU implementation of gemmA, used when n is small (e.g., n <= nb)
• Added row and column scaling, scale_row_col
• Added print of individual tile
• Removed use of life counter in gemm, herk
• Removed setting MKL threads, which is no longer needed
• Removed SLATE_NO_{HIP, CUDA} macros in favor of BLAS_HAVE_{CUBLAS, ROCBLAS} macros from BLAS++
• Introduced tile namespace

2022.06.00

• Fixed algorithm selection (issue #41)
• Fixed set for triangular, trapezoid, symmetric, Hermitian matrices (tzset)
• Fixed ScaLAPACK pdsgesv wrapper (issue #42)
• Fixed norm for general band matrix (gbnorm)
• Added macro for OpenMP default(none); by default empty since it causes unpredictable errors for some compilers or libraries

2022.05.00

• Improved performance, including: LU, Cholesky, QR, mixed-precision LU and Cholesky, trsm, hemm, gemm, eigenvalues
• Added LU threshold pivoting
• Added scale, add, print
• Added row-major MPI grid order; fixes ScaLAPACK API
• Included HIP sources in repo, to eliminate build requirement of hipify-perl
• Fixed OpenMP issues
• Fixed QR with low-rank local blocks
• Added C API in CMake
• Rewrote testers to use less memory and reduce ScaLAPACK dependency
• Use fast residual test for BLAS routines

2021.05.02

• CMake: fix include paths with HIP for Spack

2021.05.01

• CMake: fix library paths for Spack

2021.05.00

• HIP/ROCm support
• Improved performance (BLAS, Cholesky, LU, etc.)
• Improved testers, matrix generation
• More robust CUDA & HIP kernels, allow larger nb
• CMake fixes

2020.10.00

• Initial release. Functionality:
  • Level 3 BLAS
  • Matrix norms
  • LU, Cholesky, symmetric indefinite linear system solvers
  • Hermitian and generalized Hermitian eigenvalues (values only; vectors coming)
  • SVD (values only; vectors coming)
  • Makefile, CMake, and Spack build options
  • CUDA support