Martin Kroeker
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| OpenBLAS ChangeLog | |||
| ==================================================================== | |||
| Version 0.3.27 | |||
| 4-Apr-2024 | |||
| 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 | |||
| ==================================================================== | |||
| Version 0.3.26 | |||
| 2-Jan-2024 | |||