general:
- added initial (generic) support for the CSKY architecture
- capped the maximum number of threads used in GEMM, GETRF and POTRF to avoid creating
underutilized or idle threads - sped up multithreaded POTRF on all platforms
- added extension openblas_set_num_threads_local() that returns the previous thread count
- re-evaluated the SGEMV and DGEMV load thresholds to avoid activating multithreading
for too small workloads - improved the fallback code used when the precompiled number of threads is exceeded,
and made it callable multiple times during the lifetime of an instance - added CBLAS interfaces for the BLAS extensions ?AMIN,?AMAX, CAXPYC and ZAXPYC
- fixed a potential buffer overflow in the interface to the GEMMT kernels
- fixed use of incompatible pointer types in GEMMT and C/ZAXPBY as flagged by GCC-14
- fixed unwanted case sensitivity of the character parameters in ?TRTRS
- sped up the OpenMP thread management code
- fixed sizing of logical variables in INTERFACE64 builds of the C version of LAPACK
- fixed inclusion of new LAPACK and LAPACKE functions from LAPACK 3.11 in the shared library
- added a testsuite for the BLAS extensions
- modified the error thresholds for SGS/DGS functions in the LAPACK testsuite to suppress
spurious errors - added support for building the benchmark collection with CMAKE
- added rewriting of linker options to avoid linking both libgomp and libomp in CMAKE builds
with OpenMP enabled that use clang with gfortran - fixed building on systems with ucLibc
- added support for calling ?NRM2 with a negative increment value on all architectures
- added support for the LLVM18 version of the flang-new compiler
- fixed handling of the OPENBLAS_LOOPS variable in several benchmarks
- Integrated fixes from the Reference-LAPACK project:
- Increased accuracy in C/ZLARFGP (Reference-LAPACK PR 981)
x86:
- fixed handling of NaN and Inf arguments in ZSCAL
- fixed GEMM3M functions failing in CMAKE builds
x86-64:
- removed all instances of sched_yield() on Linux and BSD
- fixed a potential deadlock in the thread server on MSWindows (introduced in 0.3.26)
- fixed GEMM3M functions failing in CMAKE builds
- fixed handling of NaN and Inf arguments in ZSCAL
- added compiler checks for AVX512BF16 compatibility
- fixed LLVM compiler options for Sapphire Rapids
- fixed cpu handling fallbacks for Sapphire Rapids with
disabled AVX2 in DYNAMIC_ARCH mode - fixed extensions SCSUM and DZSUM
- improved GEMM performance for ZEN targets
arm:
- fixed handling of NaN and Inf arguments in ZSCAL
arm64:
- added initial support for the Cortex-A76 cpu
- fixed handling of NaN and Inf arguments in ZSCAL
- fixed default compiler options for gcc (-march and -mtune)
- added support for ArmCompilerForLinux
- added support for the NeoverseV2 cpu in DYNAMIC_ARCH builds
- fixed mishandling of the INTERFACE64 option in CMAKE builds
- corrected SCSUM kernels (erroneously duplicating SCASUM behaviour)
- added SVE-enabled kernels for CSUM/ZSUM
- worked around an inaccuracy in the NRM2 kernels for NeoverseN1 and Apple M
power:
- improved performance of SGEMM on POWER8/9/10
- improved performance of DGEMM on POWER10
- added support for OpenMP builds with xlc/xlf on AIX
- improved cpu autodetection for DYNAMIC_ARCH builds on older AIX
- fixed cpu core counting on AIX
- added support for building a shared library on AIX
riscv64:
- added support for the X280 cpu
- added support for semi-generic RISCV models with vector length 128 or 256
- added support for compiling with either RVV 0.7.1 or RVV 1.0 standard compilers
- fixed handling of NaN and Inf arguments in ZSCAL
- improved cpu model autodetection
- fixed corner cases in ?AXPBY for C910V
- fixed handling of zero increments in ?AXPY kernels for C910V
loongarch64:
- added optimized kernels for ?AMIN and ?AMAX
- fixed handling of NaN and Inf arguments in ZSCAL
- fixed handling of corner cases in ?AXPBY
- fixed computation of SAMIN and DAMIN in LSX mode
- fixed computation of ?ROT
- added optimized SSYMV and DSYMV kernels for LSX and LASX mode
- added optimized CGEMM and ZGEMM kernels for LSX and LASX mode
- added optimized CGEMV and ZGEMV kernels
mips:
- fixed utilizing MSA on P5600 and related cpus (broken in 0.3.22)
- fixed handling of NaN and Inf arguments in ZSCAL
- fixed mishandling of the INTERFACE64 option in CMAKE builds
zarch:
- fixed handling of NaN and Inf arguments in ZSCAL
- fixed calculation of ?SUM on Z13
md5sum
ef71c66ffeb1ab0f306a37de07d2667f OpenBLAS-0.3.27.tar.gz
4b85246b10d61f362fe8b9b45cd145f0 OpenBLAS-0.3.27.zip