Changelog

2025.05.28 (ABI 2.0.0)

• Removed deprecated functions

• Tester prints stats with –repeat

• Update ScaLAPACK API to query env variables only once

• Update eig (heev) to verify square process grid

• Fixed template syntax

2024.10.29 (ABI 1.0.0)

• Fixed norm to correctly propagate NaN and Inf values.

• Fixed matrix generators to 1-based i,j indices, to match Matlab.

• Added new matrix generators (minij, hilb, …, gcdmat).

• Require MPI in CMake/Makefile. The non-MPI build was always broken.

• Improved GitHub continuous testing.

• Refactored norm test code.

• Refactored ScaLAPACK wrappers with enums, namespace.

• Replaced Fortran steqr2 with C++ steqr.

2024.05.31 (ABI 1.0.0)

• Added shared library ABI version

• Updated enum parameters to have to_string, from_string; deprecated <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

• Fixed variable block sizes

• Fixed tau in LQ tester

• Updated examples for Users Guide

• Fixed CUDA sync in Frobenius norm

• Added random butterfly transform (RBT) solver

• Used blas_int in scalapack wrappers, towards supporting int64

• Fixed Cholesky QR test with well-conditioned matrix

• Added info check in LU for singular matrix

• Fixed SVD tester for all vectors

• Used multi-threaded Intel MKL to improve eig and svd

• Added arbitrary batch regions in set

• Added timers in gesv, posv, gels, heev, svd

• Improved support for 2D GPU grids and lambda constructors

• Fixed ROCm complex for ROCm 5.6

• Merged Cholesky potrf Host and Device implementations

• Removed tile life from QR, LQ, add routines

• Fixed test matrix generation

• Cleaned up MOSI, moved to Tile class

• Added zerocol test matrix variant

• Fixed receive count

• Used GPU-to-GPU copies

• Fixed tileMB, tileNb

• Improved 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