OpenMathLib/OpenBLAS v0.3.31

OpenBLAS 0.3.31 version

on GitHub

general:

• reverted a matrix partitioning optimization from 0.3.30 that could lead to
  race conditions and subsequent invalid results in GEMM
• added the bfloat16 extensions BGEMM and BGEMV
• added a BLAS interface for the ?GEMM_BATCH extensions
• added the BLAS extensions ?GEMM_BATCH_STRIDED and their CBLAS interface
• added the basic infrastructure for half-precision float (FP16) format
  using SH prefix
• reimplemented the LAPACK SLAED3/DLAED3 function using multithreading, thereby
  improving the performance of the SSYEVD/DSYEVD eigensolver for symmetric matrices
  on all platforms
• limited the number of retries for initial memory allocation to avoid infinite
  hanging on low-memory systems
• fixed a thread lockup situation encountered with python 3.9 or older and numpy
• introduced a problem size threshold for multithreading in STRMV/DTRMV
• introduced a problem size threshold for multithreading in CHER/CHER2/CHPR/CHPR2
  and ZHER/ZHER2/ZHPR/ZHPR2
• improved the problem size thresholds for multithreading in SGER/DGER
• improved autodetection of the Fortran compiler
• fixed passing of the INTERFACE64=1 option to the flang-new compiler
• fixed a potential deadlock in multithreaded code after calling fork()
• fixed builds using CMake on FreeBSD
• fixed builds using CMake from within Cygwin on Windows
• fixed builds using CMake and the NVHPC compiler on ARM64
• fixed CMake build error from misdetecting compiler or OpenMP versions
• improved contents of the CMake-generated OpenBLASConfig.cmake file
• added support for cross-compilation to RISCV targets via CMake
• fixed cross-compilation to x86 targets from non-x86 architectures
• fixed failure to install cblas.h if NO_CBLAS=0 was specified
• fixed missing user-defined pre- and postfixes on functions in lapack.h,lapacke.h
• included fixes from the Reference-LAPACK project:
  • fix ordering bug in ?LAED/?LASD (Reference-LAPACK PR 1140)
  • revert changes in ?GEEV from PR 1129 (Reference-LAPACK PR 1142)
  • fix workspace allocation in LAPACKE_?TRSEN (Reference-LAPACK PR 1144)

riscv:

• added optimized SBGEMM kernels for ZVL128B and ZVL256B targets
• added optimized SHGEMM kernels for ZVL128B and ZVL256B targets
• added optimized SBGEMV and SHGEMV kernels for ZVL128B/ZVL256B
• improved performance of the GEMV kernel for ZVL256B
• improved the performance of the CROT and ZROT kernels for ZVL128B and x280
• improved the detection of RVV1.0 capability
• improved performance of the matrix packing helper functions for ZVL128B and ZVL256B
• improved performance of OMATCOPY for ZVL128B and ZVL256B

arm:

• fixed spurious executable stack in the getarch utility

arm64:

• fixed spurious executable stack in the getarch utility
• fixed compiler warnings arising from the timer macro RPCC
• fixed cache size detection for Qualcomm Oryon under Windows on Arm
• fixed argument handling in the default SVE kernel for SDOT/DDOT
• building the BFLOAT16 kernels is now enabled by default
• improved the overall performance of GEMM,SYMM and HEMM on A64FX
• improved the performance of SDOT/DDOT on A64FX
• improved the multithreading performance of SDOT/DDOT on A64FX by
  introduction of a throttling table matching thread count to problem size
• improved the performance of SGER/DGER on A64FX and NEOVERSEV1
• improved the multithreading performance of GEMM on A64FX and NEOVERSEV1
• improved the performance of the GEMV kernel for SVE-capable targets
• improved the multithreading performance of SGEMM on NEOVERSEV1 and V2
• added optimized SAXPY/DAXPY SVE kernels for A64FX and NEOVERSEV1
• added optimized BGEMM and BGEMV kernels for NEOVERSEV1
• added an optimized BGEMM kernel for NEOVERSEN2
• added support for the NEOVERSEV2 cpu
• added dedicated support for the Apple M4 cpu as VORTEXM4
• added optimized SGEMM/SSYMM/STRMM/SSYRK/SSYR2K for SME-capable targets
  (ARMV9SME and VORTEXM4)
• improved the precision of the SNRM2 kernel
• added cpu autodetection and compiler settings for Ampere One processors
• fixed cpu autodetection for Apple M systems running Linux
• fixed building on MacOS with AppleClang,gfortran and xcode v16 or newer
• fixed several errors in the C code replacements for the complex and double
  precision complex LAPACK functions that get used (only) when compiling with
  Microsoft C and NOFORTRAN=1 under MS Windows

power:

• added initial support for the POWER11 architecture
• improved performance of DGEMM and DGEMV on POWER10
• fixed the default compiler flags to use "-O3" instead of the possibly unsafe
  "-Ofast"
• fixed building under MacOS (for old G4 Macs) with CMake
• fixed potential miscompilation of DGEMV and other assembly kernels by gcc15.1
• fixed compilation with recent versions of flang

loongarch64:

• fixed warnings and potential inaccuracies arising from incorrect saving of registers
• fixed enumeration of logical cores on big NUMA servers
• fixed building with LLVM and the INTERFACE64=1 option

x86:

• fixed building the GEMM3M kernels for the GENERIC target
• fixed several errors in the C code replacements for the complex and double
  precision complex LAPACK functions that get used (only) when compiling with
  Microsoft C and NOFORTRAN=1 under MS Windows

x86_64:

• added cpu autodetection for Intel Lunar Lake (Core Ultra 200V)
• changed all ?MIN and ?MAX assembly kernels to use unaligned operations
• fixed several errors in the C code replacements for the complex and double
  precision complex LAPACK functions that get used (only) when compiling with
  Microsoft C and NOFORTRAN=1 under MS Windows
• fixed potential crashes in builds for Cooper Lake, Sapphire Rapids or Zen5 cpus
  under MS Windows

zarch:

• added support for building with CMake

sparc:

• fixed a potential crash in the DNRM2 kernel

general:

• reverted a matrix partitioning optimization from 0.3.30 that could lead to
  race conditions and subsequent invalid results in GEMM
• added the bfloat16 extensions BGEMM and BGEMV
• added a BLAS interface for the ?GEMM_BATCH extensions
• added the BLAS extensions ?GEMM_BATCH_STRIDED and their CBLAS interface
• added the basic infrastructure for half-precision float (FP16) format
  using SH prefix
• reimplemented the LAPACK SLAED3/DLAED3 function using multithreading, thereby
  improving the performance of the SSYEVD/DSYEVD eigensolver for symmetric matrices
  on all platforms
• limited the number of retries for initial memory allocation to avoid infinite
  hanging on low-memory systems
• fixed a thread lockup situation encountered with python 3.9 or older and numpy
• introduced a problem size threshold for multithreading in STRMV/DTRMV
• introduced a problem size threshold for multithreading in CHER/CHER2/CHPR/CHPR2
  and ZHER/ZHER2/ZHPR/ZHPR2
• improved the problem size thresholds for multithreading in SGER/DGER
• improved autodetection of the Fortran compiler
• fixed passing of the INTERFACE64=1 option to the flang-new compiler
• fixed a potential deadlock in multithreaded code after calling fork()
• fixed builds using CMake on FreeBSD
• fixed builds using CMake from within Cygwin on Windows
• fixed builds using CMake and the NVHPC compiler on ARM64
• fixed CMake build error from misdetecting compiler or OpenMP versions
• improved contents of the CMake-generated OpenBLASConfig.cmake file
• added support for cross-compilation to RISCV targets via CMake
• fixed cross-compilation to x86 targets from non-x86 architectures
• fixed failure to install cblas.h if NO_CBLAS=0 was specified
• fixed missing user-defined pre- and postfixes on functions in lapack.h,lapacke.h
• included fixes from the Reference-LAPACK project:
  • fix ordering bug in ?LAED/?LASD (Reference-LAPACK PR 1140)
  • revert changes in ?GEEV from PR 1129 (Reference-LAPACK PR 1142)
  • fix workspace allocation in LAPACKE_?TRSEN (Reference-LAPACK PR 1144)

riscv:

• added optimized SBGEMM kernels for ZVL128B and ZVL256B targets
• added optimized SHGEMM kernels for ZVL128B and ZVL256B targets
• added optimized SBGEMV and SHGEMV kernels for ZVL128B/ZVL256B
• improved performance of the GEMV kernel for ZVL256B
• improved the performance of the CROT and ZROT kernels for ZVL128B and x280
• improved the detection of RVV1.0 capability
• improved performance of the matrix packing helper functions for ZVL128B and ZVL256B
• improved performance of OMATCOPY for ZVL128B and ZVL256B

arm:

• fixed spurious executable stack in the getarch utility

arm64:

• fixed spurious executable stack in the getarch utility
• fixed compiler warnings arising from the timer macro RPCC
• fixed cache size detection for Qualcomm Oryon under Windows on Arm
• fixed argument handling in the default SVE kernel for SDOT/DDOT
• building the BFLOAT16 kernels is now enabled by default
• improved the overall performance of GEMM,SYMM and HEMM on A64FX
• improved the performance of SDOT/DDOT on A64FX
• improved the multithreading performance of SDOT/DDOT on A64FX by
  introduction of a throttling table matching thread count to problem size
• improved the performance of SGER/DGER on A64FX and NEOVERSEV1
• improved the multithreading performance of GEMM on A64FX and NEOVERSEV1
• improved the performance of the GEMV kernel for SVE-capable targets
• improved the multithreading performance of SGEMM on NEOVERSEV1 and V2
• added optimized SAXPY/DAXPY SVE kernels for A64FX and NEOVERSEV1
• added optimized BGEMM and BGEMV kernels for NEOVERSEV1
• added an optimized BGEMM kernel for NEOVERSEN2
• added support for the NEOVERSEV2 cpu
• added dedicated support for the Apple M4 cpu as VORTEXM4
• added optimized SGEMM/SSYMM/STRMM/SSYRK/SSYR2K for SME-capable targets
  (ARMV9SME and VORTEXM4)
• improved the precision of the SNRM2 kernel
• added cpu autodetection and compiler settings for Ampere One processors
• fixed cpu autodetection for Apple M systems running Linux
• fixed building on MacOS with AppleClang,gfortran and xcode v16 or newer
• fixed several errors in the C code replacements for the complex and double
  precision complex LAPACK functions that get used (only) when compiling with
  Microsoft C and NOFORTRAN=1 under MS Windows

power:

• added initial support for the POWER11 architecture
• improved performance of DGEMM and DGEMV on POWER10
• fixed the default compiler flags to use "-O3" instead of the possibly unsafe
  "-Ofast"
• fixed building under MacOS (for old G4 Macs) with CMake
• fixed potential miscompilation of DGEMV and other assembly kernels by gcc15.1
• fixed compilation with recent versions of flang

loongarch64:

• fixed warnings and potential inaccuracies arising from incorrect saving of registers
• fixed enumeration of logical cores on big NUMA servers
• fixed building with LLVM and the INTERFACE64=1 option

x86:

• fixed building the GEMM3M kernels for the GENERIC target
• fixed several errors in the C code replacements for the complex and double
  precision complex LAPACK functions that get used (only) when compiling with
  Microsoft C and NOFORTRAN=1 under MS Windows

x86_64:

• added cpu autodetection for Intel Lunar Lake (Core Ultra 200V)
• changed all ?MIN and ?MAX assembly kernels to use unaligned operations
• fixed several errors in the C code replacements for the complex and double
  precision complex LAPACK functions that get used (only) when compiling with
  Microsoft C and NOFORTRAN=1 under MS Windows
• fixed potential crashes in builds for Cooper Lake, Sapphire Rapids or Zen5 cpus
  under MS Windows

zarch:

• added support for building with CMake

sparc:

• fixed a potential crash in the DNRM2 kernel

md5sums:
05050271d9196f65bc4ac3a89c6a3b05 OpenBLAS-0.3.31.tar.gz
5480a9052e083e7abc9a3298fbf9079b OpenBLAS-0.3.31.zip