OpenBLAS Files

general:

• Fixed potential race conditions between concurrent calls to level3 BLAS functions (inadvertent use of non-unified locks)
• Fixed potential race condition in GETRF
• Added or improved multithreading thresholds in SPR,SPR2,SYR,SYR2,TBMV,TPMV
• Added multithreading thresholds to GETRS, LAED3, LASWP, LAUUM, TRTRS, ZTRTRI
• Added a BLAS extension for overriding the default error handler (XERBLA) routine
• Reimplemented the BLAS extension GEADD to support independent transposition of both matrices (not available with the previous, ATLAS-like implementation)
• Guarded against spurious NaN values in the reimplemented ?LAED3
• Fixed compilation of the BLAS extension tests with CMake
• Fixed spurious and conflicting setting of job numbers in gmake builds
• Fixed a potential linking issue with the fortran runtime in the BLAS tests
• Fixed potential access to unrelated memory in the C fallback versions of LAPACK functions ILAENV and IPARMQ
• Fixed the generated pkgfile to support spaces in path names
• Added support for compilation with the experimental, LLVM-based memory-safe C toolchain known as Fil-C
• Imported recent updates from Reference-LAPACK to realign with its upcoming 3.13.0 release:
• Added non-trivial terminating case to ?LARFT calculation (Reference-LAPACK PR 1163)
• Fixed workspace calculation for CUNMLQ with K=0 (Reference-LAPACK PR 1225)
• Rearranged computations in C/ZLARTG to avoid large intermediates (PR 1245)
• Fixed wrong Y increment used in ?ORDB3/?UNBDB3 (Reference-LAPACK PR 1265)
• Fixed wrong name reported in XERBLA call of ZLA_SYRFSX_EXTENDED (PR 1268)
• Fixed wrong JOBA type in SGESVJ call of SGEJSV (Reference-LAPACK PR 1269)
• Fixed wrong workspace in DGEJSV corrupting memory in DGESVJ (PR 1270)
• Fixed wrong or missing EXTERNAL declarations (Reference-LAPACK PR 1271)
• Fixed wrong operand number in errors of GGSVD3,UN/ORBDB4,UN/ORCSD (PR 1272)
• Fixed sign of error flag in LWORK check of LAQZ0 (Reference-LAPACK PR 1273)
• Fixed too small workspace query result from SGGEV3 (Reference-LAPACK PR 1274)
• Fixed DLASWLQ not rejecting NB=0 (Reference-LAPACK PR 1275)
• Avoid immediate overflows in GEJSV,GESVJ,GESVDX,GEDMD (Reference-LAPACK PR 1283)
• Ignore LDU value when U unused in LAPACKE_?GESVD_WORK (Reference-LAPACK PR 1284)
• Fixed premature return before fallback code in BDSQR (Reference-LAPACK PR 1285)
• Increased tolerance in LASD2 to improve BDSDC stability (Reference-LAPACK PR 1286)
• Fixed row-major A dimension for SIDE=R in LAPACKE_?TPRFB_WORK (PR 1287)
• Fixed seed advancement in SLARUV/DLARUV (Reference-LAPACK PR 1288)
• Fixed workspace queries for TZRZF/UNMRZ in GELSY (Reference-LAPACK PRs 1289/1325)
• Avoid immediate overflows in ?LARFGP (Reference-LAPACK PR 1290)
• Added handling of degenerate cases in OR/UNCSD2BY1 (Reference-LAPACK PR 1291)
• Fixed workspace for tiny inputs in ORM/UNM-L/R-Q and -Q-L/R (PR 1292)
• Scaled convergence thresholds in ?BBCSD to improve accuracy (PR 1293)
• Fixed integer overflow in the LAPACKE nancheck helpers (Reference-LAPACK PR 1294)
• Relaxed eigenvalue consistency checks in testsuite (Reference-LAPACK PR 1297)
• Fixed test failures in ?CHKLQ with NB=1 and M=N (Reference-LAPACK PR 1298)
• Switched to QR algorithm in ?BDSDC for bidiagonal SVD with vectors (PR 1300)
• Replaced HUGE intrinsic in ?TGSJA with parameter for consistency (PR 1305)
• Corrected description of QMAX parameter in ?LASQ3 (Reference-LAPACK PR 1307)
• Fixed bad scaling in ?LARFF that slowed down DSYEVR/ZHEEVR (PR 1309)
• Fixed handling of negative increments in ?LARF/?LARF1F/?LARF1L (PR 1315)
• Increased tolerances in ?LAED to match changes in ?LASD (PR 1317)
• Fixed LAPACKE_?lacpy_work destroying data in row-major mode (PR 1318)

arm:

• Added a significantly faster SGEMM kernel

arm64:

• Added optimized kernels for OMATCOPY_CT and OMATCOPY_RT on all targets
• Fixed SDOT/DDOT on non-SVE-capable cpus not initializing the result correctly
• Fixed miscompilation of CGETF2/ZGETF2 by LLVM on Apple M
• Fixed SSYRK miscalculation on Apple M systems bigger than the Mac mini
• Fixed remaining cases of CMake build failure due to long argument lists on OSX
• On OSX, reduced the list of DYNAMIC_ARCH targets to those relevant for this os
• Fixed platform detection and cross-builds to iOS on OSX with AppleClang
• Fixed gmake builds for SME targets on OSX with AppleClang
• Improved the compiler test for SME compatibility in the CMake build files
• Fixed runtime detection of SME in DYNAMIC_ARCH builds made with CMake
• Restored a fix for building DYNAMIC_ARCH under Windows on Arm that was inadvertently dropped in 0.3.33)
• Corrected the selection criteria for the SME-based SGEMM kernel on Apple M
• Fixed DYNAMIC_ARCH builds on hosts without SVE capability
• Fixed building a shared library with NAG Fortran on OSX
• Fixed misdetection of C11 capability (and resulting race conditions during concurrent calls) in Clang builds under OSX
• Fixed miscalculation of Apple M cpu time leading to benchmarks 40 times too slow

loongarch64:

• Corrected generation of the LSX/LASX status flags in the configuration files
• Fixed potential reads of memory beyond the array bounds in the LA464 SGEMM kernel
• Added optimized SDOT, ICAMIN/IZAMIN and ZGEMM kernels for 2K3000

power:

• Fixed an incompatibility in the assembly kernels for SCAL on FreeBSD
• Fixed a potentially spurious check for gfortran in gmake builds with LLVM that could make POWER9/10 builds fall back to POWER8 kernels
• Improved build flags and cpu register constraints for POWER10
• Fixed linking issues on BSD

riscv64:

• Fixed compilation for DYNAMIC_ARCH with BUILD_BFLOAT16 defined
• Fixed SGEMM and DGEMM errors on ZVL256 introduced in 0.3.33
• Sped up GEMV on C910V and ZVL256B targets
• Improved the x280 S/DROTM kernel and enabled it on ZVL128B/ZVL256B
• Added optimized STRSM kernels for ZVL128B/ZVL256B
• Added optimized D/C/ZTRSM kernels (RN and RT cases) for ZVL128B/ZVL256B
• Added a dedicated target for the SiFive U74 with optimized SGEMM and DGEMM kernels
• Made L2 cache size available at runtime for scaling GEMM block sizes

x86_64:

• Fixed remaining cases of CMake build failure due to long argument lists on OSX
• Improved cpu capability check for recent Zhaoxin cpus
• Fixed wrong TRSM results on AMD Barcelona (and Ryzen systems in 32bit builds)
• Added autodetection support for the fake Opteron-like CPUID used by QEMU on AMD hardware
• Fixed automatic setting of the BINARY=32 option when building with 32bit toolchains
• Fixed miscompilations with gcc15/gcc16 on 32bit FreeBSD

md5sums: ae9a0c2945f91b6f91747fd89a301d36 OpenBLAS-0.3.34.tar.gz ba82478e775039d265241bcf87fbbc93 OpenBLAS-0.3.34.zip bd2f96406b374ba7ccbcbed10153b9f0 OpenBLAS-0.3.34-x64-64.zip 5047115a08a7d39471375a25994108c5 OpenBLAS-0.3.34-x64.zip 0a4a2d145a31588a9d2efbd298ebf843 OpenBLAS-0.3.34-x86.zip 08d33169cbd177acd1c7925a92b3523b OpenBLAS-0.3.34-woa64-64-dll.zip f8ff9def0f2785ff7702546a04e6ffb9 OpenBLAS-0.3.34-woa64-64-static.zip 246859e63037b315ef039cfe0e02520f OpenBLAS-0.3.34-woa64-dll.zip 36b16ee5adec6e364b0eab525a4e0a27 OpenBLAS-0.3.34-woa64-static.zip