Install FFTW, BLAS & LAPACK

II. BLAS & LAPACK
https://ahmadzareei.github.io/azareei/linux/2016/04/08/configuring-blas-lapack.html
1. Dowloand LAPACK
https://thelinuxcluster.com/2012/04/09/building-lapack-3-4-with-intel-and-gnu-compiler/

wget http://www.netlib.org/lapack/lapack-3.9.0.tgz
tar -zxvf lapack-3.9.0.tgz
cd lapack-3.9.0

## Use gfortran 64-bits compiler
module load compiler/gcc-10.2

##  copy and create make.inc

cp INSTALL/make.inc.gfortran make.inc

Edit the make.inc

make -j 12

## copy lib to new place
mkdir -p /uhome/p001cao/local/app/lapack-3.9
cp liblapack.a /uhome/p001cao/local/app/lapack-3.9/liblapack.a

## Use:
export LAPACK=/uhome/p001cao/local/app/lapack-3.9/liblapack.a

2. Install BLAS

- should use BLAS source include in LAPACK source

cd lapack-3.9.0/BLAS
## Use gfortran 64-bits compiler
module load compiler/gcc-10.2
gfortran -O3 -std=legacy -m64 -fno-second-underscore -fPIC -c *.f
ar r libfblas.a *.o   # creates libblas.a
ranlib libfblas.a
## copy lib to new place
mkdir -p /uhome/p001cao/local/app/blas
cp libfblas.a /uhome/p001cao/local/app/blas/libfblas.a  
## Use: 
export BLAS=/uhome/p001cao/local/app/blas/libfblas.a