Search results

OpenBLAS bottlenecks multithreading benefits at 8 working threads despite setting BLAS threads to 1

Status: Open.

#5589 In OpenMathLib/OpenBLAS;

· BioTurboNick opened on Jan 2, 2026

2 GB at the start

Support

Status: Open.

#5587 In OpenMathLib/OpenBLAS;

· tim-lebedkov opened on Dec 29, 2025

new SME kernels are breaking clang on Windows

Status: Open.

#5585 In OpenMathLib/OpenBLAS;

· vtjnash opened on Dec 23, 2025

Ensure only public API has default symbol visibility, hide private symbols

Bug

Distribution packaging problemThird party package incompatibilities, inappropriate build flags or unmet dependencies etcThird party package incompatibilities, inappropriate build flags or unmet dependencies etc

Status: Open.

#5560 In OpenMathLib/OpenBLAS;

· rgommers opened on Dec 4, 2025

[Query] Release- v0.31.0

Status: Open.

#5559 In OpenMathLib/OpenBLAS;

· aditew01 opened on Dec 3, 2025

<code>BIGNUMA</code> and <code>NUM_THREADS&gt;256</code> on 2×192-core AmpereOne (AArch64)

Status: Open.

#5555 In OpenMathLib/OpenBLAS;

· DanielWicz opened on Nov 28, 2025

Setting optimized <code>[SD]GEMM_DEFAULT_[PQR]</code> parameters for <code>A64FX</code>

Status: Open.

#5553 In OpenMathLib/OpenBLAS;

· hideaki-motoki opened on Nov 28, 2025

build tests test/dblat1 and ctest/xdcblat1 fail on OpenIndiana SPARC

Status: Open.

#5552 In OpenMathLib/OpenBLAS;

· klausz65 opened on Nov 27, 2025

GEMM promote perfomance

Status: Open.

#5541 In OpenMathLib/OpenBLAS;

· kaka1989-tpp opened on Nov 19, 2025

Build error with CMake + DYNAMIC_ARCH=OFF + FMA3: _mm256_fmadd_ps compiled without -mfma (target specific option mismatch)

Support

Waiting for answer

Status: Open.

#5535 In OpenMathLib/OpenBLAS;

· toblil opened on Nov 16, 2025

cblas_sgemm has wrong result on apple M4

Status: Open.

#5528 In OpenMathLib/OpenBLAS;

· kon0740 opened on Nov 5, 2025

Extreme, load dependent slowness on multi-core CPUs with, for example, many iterations of a complex eigenproblem.

Status: Open.

#5517 In OpenMathLib/OpenBLAS;

· sdh4 opened on Oct 24, 2025