OpenBLAS

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[WIP]Optimize gemm for small matrix

2

- [x] Add basic implementation ( please check aae6af94bbe4f7ad97c417e40fe6a7d4a2798b79 ) - [ ] Merge sgemm_kernel_direct implementation - [ ] Work for DYNAMIC_ARCH - [ ] Tune the input matrix size....

xianyi

finer control over the # of threads used by any given call to OpenBLAS

3

I need finer control of the # of threads that each call to the BLAS uses. My packages are themselves multithreaded. Each of my threads can make its own calls...

DrTimothyAldenDavis

Test and tune for Zen 2

47

Zen 2 is now released, bringing a number of improvements to the table. Most notably, it now has 256 wide AVX units. This should in theory allow performance parity with...

TiborGY

How the control the number of threads of blas functions inside OMP parallel regions

7

I am working on something like the following code: ``` omp_set_num_threads(nth); #pragma omp parallel for private(g) schedule(static) for(g = 0; g < size; g++) { cblas_sgemm( ..., matrix_A + g...

bachml

Support C-SKY 860 architecture.

xianyi

Poor performance on Power-9 hardware with GCC and SMT enabled

8

Hello, I benchmarked the simple following dgemm call using 4096x4096 matrices (thus n=4096 and a, b and c are matrices) on a IBM LC922 machine with 2 POWER-9 processors (of...

zephyr111

OpenBLAS hanged when testing multithreaded affinity

13

**OpenBLAS hanged when testing multithreaded affinity.**  **Enviroment:** ARMV8 CentOS 7.6, OpenBLAS-0.3.7 **Compile cmd**: make TARGET=ARMV8 CC=gcc FC=gfortran DEBUG=1 NO_AFFINITY=0 -j96 **Execute cmd**: export OMP_NUM_THREADS=32 && ./dgemm.goto 6000 6000 The...

MacChen02

win32: Don't rely on timeout at all

24

Same issue as #2314, but this time seen in Julia. Having a timeout here is fundamentally unsound. There is no guarantee that the kernel will ever schedule the thread holding...

Keno

cblat3 and zblat3 test FAIL on LOONGSON3A

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Compile Openblas with: make CC=gcc FC=gfortran HOSTCC=gcc TARGET=LOONGSON3A CROSS=1 NO_LAPACKE=1 BINARY=64 Compile OK. Goto /OpenBLAS/test/, make clean make Log shows: OPENBLAS_NUM_THREADS=1 OMP_NUM_THREADS=1 ./cblat3 < ./cblat3.dat TESTS OF THE COMPLEX LEVEL...

fengrl

OpenBLAS on dSPACE realtime hardware

48

Hello, I am currently trying to update some code to use OpenBLAS and implement it on a dSPACE 1103 PowerPC board but I am having some issues. The build steps...

mohseninima