OpenMathLib/OpenBLAS - CodSpeed

OpenBLAS

Blog Docs Changelog

Performance History

Latest Results

fix RVV 1.0 detection code There were a couple of issues with the detection code used to check for RVV 1.0 on kernels that do not support hwprobe. 1. The vtype clobber was missing 2. The wrong form of vsetvli was being used. The vsetvli x0, x0 form is inappropriate for this use case as it can only be safely used in code where the value of vtype is known. The use of vsetvli x0, x0 here can lead to a failure to detect RVV 1.0, if, for example, the vill bit happens to be set before detect_riscv64_rvv100 is called. We fix both issues by adding the missing clobber and replacing the first parameter to vsetvli with t0 (which we add to our clobbers).

markdryan:markdyan/fix-rvv-detection

3 days ago

disable fp16 flags on RISC-V unless BUILD_HFLOAT16=1 The compiler options that enable 16 bit floating point instructions should not be enabled by default when building the RISCV64_ZVL128B and RISCV64_ZVL256B targets. The zfh and zvfh extensions are not part of the 'V' extension and are not required by any of the RVA profiles. There's no guarantee that kernels built with zfh and zvfh will work correctly on fully compliant RVA23U64 devices. To fix the issue we only build the RISCV64_ZVL128B and RISCV64_ZVL256B kernels with the half float flags if BUILD_HFLOAT16=1. We also update the RISC-V dynamic detection code to disable the RISCV64_ZVL128B and RISCV64_ZVL256B kernels at runtime if we've built with DYNAMIC_ARCH=1 and BUILD_HFLOAT16=1 and are running on a device that does not support both Zfh and Zvfh. Fixes: https://github.com/OpenMathLib/OpenBLAS/issues/5428

markdryan:markdryan/riscv-hf16-fix

3 days ago

don't set TARGET_FLAGS for generic RISC-V targets Setting the TARGET_FLAGS causes fortran detection to fail on Linux unless you have an f77 compiler on your path. Fixes: https://github.com/OpenMathLib/OpenBLAS/issues/5424

markdryan:markdryan/riscv-hf16-fix

3 days ago

don't set TARGET_FLAGS for generic RISC-V targets Setting the TARGET_FLAGS causes fortran detection to fail on Linux unless you have an f77 compiler on your path. Fixes: https://github.com/OpenMathLib/OpenBLAS/issues/5424

markdryan:markdryan/riscv-hf16-fix

3 days ago

Merge pull request #5426 from hideaki-motoki/issue5417_axpy_sve Implementing SVE in `[SD]AXPY` Kernels for `A64FX` and `Graviton3E`

develop

5 days ago

Merge pull request #5427 from yuanjia111/develop Optimize the gemv_t_vector.c kernel for RISCV64_ZVL256B target

develop

6 days ago

remove debugging printout

martin-frbg:issue5414

7 days ago

Add registers d8 to d15 to clobber lists as the code does not expressly save them

martin-frbg:issue5414

8 days ago

Active Branches

fix RVV 1.0 detection code

last run

3 days ago

0%

disable fp16 flags on RISC-V unless BUILD_HFLOAT16=1

last run

3 days ago

0%

Split VORTEXM4 from VORTEX target and fix SGEMM_DIRECT support for SME-capable targets

last run

7 days ago

0%

© 2025 CodSpeed Technology

Home Terms Privacy Docs