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Author SHA1 Message Date
Mark Ryan ce79fe12fd 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
 2025-08-28 09:41:07 +00:00
Martin Kroeker 06c09deee9 Merge pull request #5426 from hideaki-motoki/issue5417_axpy_sve 
Implementing SVE in `[SD]AXPY` Kernels for `A64FX` and `Graviton3E`
 2025-08-26 01:10:14 -07:00
Martin Kroeker da7d0f4a38 Merge pull request #5427 from yuanjia111/develop 
Optimize the gemv_t_vector.c  kernel  for  RISCV64_ZVL256B target
 2025-08-25 06:45:44 -07:00
yuanjia c2cc7a3602 riscv64: optimize gemv_t_vector.c 2025-08-22 16:14:14 +08:00
h-motoki e23f9c6642 Merge remote-tracking branch 'upstream/develop' into issue5417_axpy_sve 2025-08-21 22:16:28 +09:00
Martin Kroeker b3f247ae5a Merge pull request #5425 from martin-frbg/fixup5389 
Increase L2 defaults for RISCV X280 / ZVL256B and ARM SVE targets in CMake cross-compilation
 2025-08-21 05:13:34 -07:00
h-motoki 855945befb Implementing SVE in [SD]AXPY Kernels for A64FX and Graviton3E 2025-08-21 20:56:58 +09:00
Martin Kroeker 7c1839899e Increase assumed L2 sizes for RISCV X280 / ZVL256B and for SVE-capable ARM64 2025-08-21 11:57:07 +02:00
Martin Kroeker 9c43301b6d Merge pull request #5421 from reibax-marcus/develop 
fix: broken cblas installation when using makefile based builds
 2025-08-17 03:03:05 -07:00
Martin Kroeker 9d6df1dd3e Merge pull request #5422 from ChipKerchner/addRVVVectorizedPacking 
Add and use vectorized packing in ZVL128B and ZVL256B for RISCV
 2025-08-16 13:45:35 -07:00
Martin Kroeker f3b2a15fad Merge pull request #5420 from yuanjia111/develop 
Move the value assignment of vector x in gemv_n_sve.c to the outermos…
 2025-08-16 12:06:53 -07:00
Chip Kerchner 64401b4417 Disable vectorized packing for DGEMM - since it is slower than scalar. 2025-08-13 13:41:12 +00:00
Martin Kroeker 5e43ba948c Merge pull request #5419 from Mousius/bgemm-optimisation 
Optimize SBGEMM / BGEMM for NEOVERSEV1 further
 2025-08-13 02:10:20 -07:00
Chip Kerchner c00afc86a6 Add and use vectorized packing to ZVL128B and ZVL256B. Up to 3x+ faster than generic scalar functions. 2025-08-12 17:18:56 +00:00
Xabier Marquiegui 3a6b79c50f fix: broken cblas installation when using makefile based builds 
Fix cblas.h missing from target directory if NO_CBLAS is defined but has
a value that indicates you do want cblas built and installed.
 2025-08-12 14:41:15 +02:00
yuanjia 803e8d4838 Move the value assignment of vector x in gemv_n_sve.c to the outermost loop to reduce the repeated data retrieval. 
1.Verify correctness using BLAS-Tester
    2.Using the built-in benchmark to verify performance, the performance of float and doule type improved by about 60% and about 40% respectively.The test command is:
     export OMP_NUM_THREADS=1;numactl -C 10 -l ./sgemv.goto 3000 4000 100
     export OMP_NUM_THREADS=1;numactl -C 10 -l ./dgemv.goto 3000 4000 100
 2025-08-12 18:03:16 +08:00
Chris Sidebottom 5f47b872f1 Remove older kernels for BGEMM on NEOVERSEV1 2025-08-11 09:25:19 +00:00
Chris Sidebottom 114316f361 Optimize SBGEMM / BGEMM for NEOVERSEV1 further 
This changes the kernels to pack full SVE vectors and reduces the
overall complexity of the inner GEMM loop.
 2025-08-11 09:25:13 +00:00
Martin Kroeker 75c6ab4036 CI: Update WoA job to use LLVM 20.1.8 and avoid stray preinstalled LLVM19 (#5411) 
* Update to 20.1.8

* fix PATH to avoid the obsolete LLVM19 that appeared in the preinstalled msvc folder hierarchy
 2025-08-09 12:28:24 +02:00
Martin Kroeker 5c5f852ee3 Merge pull request #5415 from martin-frbg/Fixum-5399 
Fix compilation of the NeoverseN2 SBGEMM kernel
 2025-08-04 04:29:26 -07:00
Martin Kroeker f1ee61ea30 Include NEON header for the bfloat conversion functions 2025-08-04 00:21:39 -07:00
Martin Kroeker b3ffd5524a Include NEON header for the bfloat conversion functions 2025-08-04 00:20:28 -07:00
Martin Kroeker d23680b81d Merge pull request #5407 from nakagawa-fj/feature/gemm_divide_rate_for_neoversev1 
Multi-thread Performance Improvement of GEMM on NeoverseV1 with DIVIDE_RATE=1
 2025-07-30 13:19:50 -07:00
Martin Kroeker b4cc4be2ce Merge pull request #5410 from martin-frbg/issue5404 
Adjust multithreading threshold in S/DGER and add an intermediate step
 2025-07-30 12:16:05 -07:00
Martin Kroeker 0968dddf1a Merge pull request #5409 from martin-frbg/issue5372 
Work around gcc15.1 on POWER misoptimizing DGEMV at -O3
 2025-07-30 10:36:39 -07:00
Martin Kroeker eddfe1e6b3 Merge pull request #5408 from ChipKerchner/fixRISCV64GEMVInitializationAndWarnings 
Fix bad vector zero initializer and other compiler warnings for RISC-V.
 2025-07-30 08:43:08 -07:00
Martin Kroeker 30d11bc92c Adjust multithreading threshold and add an intermediate step 2025-07-30 08:13:33 -07:00
Martin Kroeker a3b9c933c5 mark xbuffer as volatile to work around gcc15.1 optimizer bug 2025-07-30 17:05:36 +02:00
Chip Kerchner 72f082f31d Fix bad vector zero initializer and other compiler warnings for RISC-V. 2025-07-30 14:04:43 +00:00
Masato Nakagawa 7e29f11396 Multi-thread GEMM Performance Improvement on NeoverseV1 (DIVIDE_RATE=1) 2025-07-29 18:54:36 +09:00
Martin Kroeker 9a64b32b44 Merge pull request #5406 from martin-frbg/fixbgemmtest 
Fix building of bgemm tests on GEMM3M-capable (x86) targets
 2025-07-28 23:17:29 -07:00
Martin Kroeker b66a01f909 Fix building of bgemm tests on GEMM3M-capable (x86) targets 2025-07-28 22:43:28 +02:00
Martin Kroeker a5e7c0e3e0 Merge pull request #5396 from abhishek-iitmadras/abhishekk_bfloat16 
ARM64: Enable bfloat16 kernels by default
 2025-07-28 13:39:08 -07:00
abhishek-fujitsu 6356190d06 fix gfortran link path in dynamic_arch.yml 2025-07-28 14:37:51 +05:30
abhishek-fujitsu 4c8dcb3a8f Darwin/arm64: disable SVE/SME and fix gfortran link path 2025-07-26 16:59:46 +05:30
Martin Kroeker 33b50548eb Merge pull request #5403 from martin-frbg/issue5402 
Introduce a (crude) threshold to multithreading in STRMV/DTRMV
 2025-07-25 20:10:47 +02:00
Martin Kroeker c504aedca1 Merge pull request #5400 from Mousius/neoversev2-target 
Add NEOVERSEV2 target support
 2025-07-25 15:47:06 +02:00
Martin Kroeker b9e107932a add NeoverseV2 2025-07-25 15:44:34 +02:00
Martin Kroeker 2f89a5970e fix NeoverseV2 typo 2025-07-25 15:43:37 +02:00
Martin Kroeker a9e8fa06bf Introduce a (crude) threshold to multithreading 2025-07-25 15:15:46 +02:00
Martin Kroeker b4c2b34a45 Merge pull request #5401 from martin-frbg/followup-5397 
Include float-bfloat conversion functions in ONLY_CBLAS builds as well
 2025-07-25 13:56:13 +02:00
Martin Kroeker c9204f7b6f Merge pull request #5399 from Mousius/bgemm-8x4 
Add optimized BGEMM for NEOVERSEN2 target
 2025-07-25 11:20:52 +02:00
Martin Kroeker a55e65dba9 Merge pull request #5391 from martin-frbg/issue5387 
Use OpenBLAS_ROOT_DIR in OpenBLASConfig.cmake generation only if set
 2025-07-25 09:28:46 +02:00
abhishek-fujitsu 0bc79da587 add neon header 2025-07-25 11:10:20 +05:30
abhishek-fujitsu 720a4743b9 update contribution list 2025-07-25 11:08:22 +05:30
abhishek-fujitsu 05fc88180c ARM64: Enable bfloat16 kernels by default 2025-07-25 11:08:22 +05:30
Martin Kroeker 965463f177 Include float-bfloat conversion functions in ONLY_CBLAS builds as well 2025-07-24 23:33:20 +02:00
Martin Kroeker 4272cf8c7f Merge pull request #5398 from martin-frbg/fixup-5394 
Update ?GEMM-to-?GEMV forwarding settings for CMake
 2025-07-24 23:29:39 +02:00
Chris Sidebottom 87247daadc Add NEOVERSEV2 target support 
Did a quick run around to make `TARGET=NEVOERSEV2` build successfully.

Fixes #5385
 2025-07-24 12:40:31 +01:00
Chris Sidebottom ea2faf0c9a Add optimized BGEMM for NEOVERSEN2 target 
This re-uses the existing NEOVERSEN2 8x4 `sbgemm` kernel to implement `bgemm`.
 2025-07-24 10:59:28 +00:00