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Update the Changelog for version 0.3.30
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‎Changelog.txt

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OpenBLAS ChangeLog
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====================================================================
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Version 0.3.30
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16-Jun-2025
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general:
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- fixed an installation problem with the thread safety test in gmake builds
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- fixed spurious overwriting of an input array in complex GEMMT/GEMMTR
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- fixed naming of GEMMTR in error messages from XERBLA
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- fixed compilation of SBGEMMT/SBGEMMTR in CMake builds
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- fixed the implementation of ?NRM2 to handle INCX=0 correctly
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- removed tests for CSROT and ZDROT that relied on unspecified behavior
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- fixed a performance regression in multithreaded GEMM that was particularly
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serious on POWER targets
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- fixed linking issues when using LLVM's flang-new with gmake
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- fixed a potential thread safety problem with C11 atomic operations
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- further improved the workload partitioning in parallel GEMM
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- fixed omission of LAPACKE interfaces for CGESVDQ,CTRSYL3 and ?GEQPF in
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CMake builds
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- fixed mishandling of setting NO_LAPACK to FALSE, and incorrect dependencies
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for LAPACK function SPMV in CMake builds
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- added explicit CMake options for building LAPACKE and shared libraries
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- simplified and improved handling of OpenMP options in CMake builds
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- reworked Windows DLL generation in CMake builds to ensure correct symbol
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renaming (pre/postfixing) and optional generation of PDB files for debugging
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- updated the Perl script version of the gensymbol utility for use with
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Windows-on-Arm
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- Fixed building with (Mingw) gmake on Windows to ensure completeness of the
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LAPACK included in the static library (potential race condition due to the
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Windows version of the "ln" utility creating snapshot copies rather than links)
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- fixed unwanted deletion of the lapacke_mangling.h file by "make clean"
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- fixed potential duplication of a _64 suffix on library names in CMake builds
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- fixed compilation of the C fallback copies of the LAPACK code with GCC 15
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- included fixed from the Reference-LAPACK project:
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- fixed a truncated error message in the EIG part of the testsuite
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(Reference-LAPACK PR 1119)
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- fixed too strict check in LAPACKE_?gesdd_work (PR #1126)
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- fixed memory corruption when calling ?GEEV with non-finite data (PR #1128)
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- fixed missing initialization of a variable in C/GEQP3RK (PR #1131)
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- fixed 2nd dimension chosen in C/ZUNMLQ transposition operation (PR #1135)
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x86_64:
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- fixed an error in the SBGEMV kernel for Cooper Lake/Sapphire Rapids
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- fixed corner cases of NAN and INF input handling in CSCAL and ZSCAL
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- improved the compiler identification code for flang-new
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- fixed a potential build issue in the ZSUM kernel
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- fixed "argument list too long" errors when building on MacOS
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- added cpu autodetection support for several new Arrow Lake models
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- fixed conditional inclusion of the fast path SGEMM kernel in DYNAMIC_ARCH
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- fixed compilation with the MinGW build of GCC 15
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arm64:
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- added an optimized SBGEMM kernel for NEOVERSEV1
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- improved 1xN SBGEMM performance by forwarding to SBGEMV
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- introduced a stepwise increase of the thread count used for
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SGEMM and SGEMV on NEOVERSEV1/V2 in relation to problem size
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- introduced a stepwise increase of the thread count used for
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DGEMV on NEOVERSEV1 in relation to problem size
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- introduced a stepwise increase of the thread count used for
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SDOT and DDOT on NEOVERSEV1 in relation to problem size
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- worked around assembler limitations in LLVM for Windows-on-Arm
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- enabled cpu type autodetection from the registry on Windows-on-Arm
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- improved multithreading threshold for GEMV and GESV on Windows-on-Arm
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- fixed overoptimization issues with LLVM's flang in Windows-on-Arm
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- fixed corner cases of NAN and INF input handling in CSCAL and ZSCAL
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- added a fast path SGEMM kernel for small workloads on SME capable targets
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- improved performance of SGEMM and DGEMM kernels for small workloads
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- improved performance of SGEMV and DGEMV on SVE-capable targets
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- improved performance of SGEMV on NEOVERSEN1 and Apple M
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- added optimized SSYMV and DSYMV kernels for NEOVERSEN1, Apple M and all
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SVE capable targets
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- added optimized SBGEMV kernels for NEOVERSEV1/V2/N2
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- improved performance of SGEMM through faster NCOPY kernels
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- added compiler options for the NVIDIA HPC Compiler Suite
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- fixed compilation on OSX with XCode 16.3 and later
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- fixed cpu core type and cache size detection on Apple M4
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- updated GEMM parameter settings for Neoverse cpus in cross-builds with CMake
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- fixed default compiler options for NEOVERSEN1 and CORTEXX2 in CMake builds
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- fixed conditional inclusion of the fast path SGEMM kernel in DYNAMIC_ARCH
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- fixed potential miscompilation of the non-SVE SDOT kernel
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riscv64:
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- added optimized SROTM and DROTM kernels for x280
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- fixed corner cases of NAN and INF input handling in CSCAL and ZSCAL
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- improved performance of GEMM_TCOPY on RVV1.0 targets with
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VLEN of 128 or 256
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- improved performance of OMATCOPY on targets with VLEN 256
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- greatly improved performance of SGEMV/DGEMV
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- improved performance of CGEMV and ZGEMV on C910V and all RVV targets
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with VLEN 256
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- improved performance of SAXPBY and DAXPBY on C910V and all RVV targets
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with VLEN 256
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- improved performance of AXPY and DOT on C910V and ZVL256B targets by
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falling back to non-vectorized code for very small N. (Thereby fixing
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poor performance of CHBMV/ZHBMV for very small K)
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- fixed CMake build failures of the TRMM kernels
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loongarch64:
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- improved performance of the LSX versions of SSYMV/DSYMV
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- made the LASX versions of the DSYMV and SSYMV kernels
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compatible with hardware changes in LA664 and future targets
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- fixed inaccuracies in several LASX kernels
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- improved compatibility of LSX kernels with LA264 targets
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- fixed handling of deprecated target names in CMake builds
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- fixed corner cases of NAN and INF input handling in CSCAL and ZSCAL
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power:
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- fixed building for PPCG4 with CMake
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- fixed SSCAL/DSCAL on PPC970 running FreeBSD
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- fixed a potential alignment issue in the POWER8 SGEMV kernel
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- fixed corner cases of NAN and INF input handling in CSCAL and ZSCAL
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zarch:
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- fixed corner cases of NAN and INF input handling in CSCAL and ZSCAL
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- fixed unwanted generation of object files with a writable stack
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x86:
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- fixed corner cases of NAN and INF input handling in CSCAL and ZSCAL
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arm:
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- fixed corner cases of NAN and INF input handling in CSCAL and ZSCAL
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sparc:
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- fixed corner cases of NAN and INF input handling in CSCAL and ZSCAL
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alpha:
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- fixed build failure caused by spurious Windows-only typecasts
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cell:
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- fixed probable build issue caused by spurious Windows-only typecasts
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====================================================================
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Version 0.3.29
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12-Jan-2025

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