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Bernhard Enders bgeneto

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bgeneto / confirmed_per_city.png
Last active June 5, 2020 14:07
openblas-install-instructions
confirmed_per_city.png
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bgeneto / ambigram_dates.py
Created February 22, 2022 19:58
Shows all ambigram dates between two given years
'''
Dados os dois anos abaixo, este programa exibe todas as datas
que são tanto palíndromas (capicuas) como ambigramas (rotacionais).
'''
ANO_INI = 2000
ANO_FIM = 2100
import datetime as dt
@bgeneto
bgeneto / sicase-guias-expire-date.txt
Last active March 14, 2022 13:20
2022-03-27
@bgeneto
bgeneto / minirc.md
Last active June 14, 2022 14:48
minicom minirc configuration file 
cat <<EOF > $HOME/.minirc.dfl
pu localecho        Yes
pu addlinefeed      Yes
pu linewrap         Yes
pu addcarreturn     Yes
EOF
@bgeneto
bgeneto / openblas-bench.md
Last active August 25, 2022 13:43
Benchmarking with OpenBLAS

Timed Openblas library build

cd /tmp
libver=0.3.21
wget https://github.com/xianyi/OpenBLAS/releases/download/v$libver/OpenBLAS-$libver.tar.gz
tar xf OpenBLAS-$libver.tar.gz
cd OpenBLAS-$libver

export USE_THREAD=1
@bgeneto
bgeneto / intel-compilers-mkl-wsl2-via-repo.md
Last active January 11, 2024 23:56
Install Intel Compilers on Windows via WSL2

Install Intel Compilers on Windows via WSL2

Note: This step-by-step tutorial assumes that you already have a Linux distribution (Debian, Ubuntu...) installed on your WSL environment.

Update your package repository inside WSL2

sudo apt update
@bgeneto
bgeneto / hermitianEigen.f90
Last active August 2, 2022 03:18
OpenBLAS ZHEEV slow performance bug
! --------------------------------------------------------------------------------------
!
! 01. Purpose: Solves a simple eigenvalue/eigenvector problem in order to check
! for the zheev thread locking bug #1560
! https://github.com/xianyi/OpenBLAS/issues/1560
!
! 02. Compile and build
!
! export MAX_THREADS=4
! export OPENBLAS_NUM_THREADS=$MAX_THREADS
@bgeneto
bgeneto / numpy-eigen-bench.md
Last active May 5, 2024 22:15
numpy eigen benchmark

Purpose

To benchmark Python (Numpy) default procedure to find all eigenvalues and eigenvectors of a complex (hermitian) matrix and compare the results with Fortran using either MKL and OpenBLAS libraries.

Python code

import time
import numpy as np
@bgeneto
bgeneto / hermitianEigen-small.f90
Last active November 1, 2022 11:34
hermitianEigen fortran zheevd bench
! --------------------------------------------------------
! compile command line:
! ifort -O2 -i8 -mcmodel=medium -qmkl=parallel ./hermitianEigen-small.f90 -o ./hermitianEigen-small ${MKLROOT}/lib/intel64/libmkl_lapack95_ilp64.a -L${MKLROOT}/lib/intel64 -lpthread -lm -ldl
! --------------------------------------------------------
program hermitianEigen
use, intrinsic :: iso_fortran_env
use lapack95, only: heevd
@bgeneto
bgeneto / zsh4humans.md
Last active September 5, 2023 13:58
zsh install and config

Install sofware dependencies

#export pkgmngt=dnf
export pkgmngt=apt
sudo $pkgmngt update && sudo $pkgmngt install tree exa zsh wget curl unzip fontconfig -y

Font Install