Install OpenBLAS on Jetson TK1 From Source

In Ubuntu 14.04 used by Jetson TK1 doesn’t have libopenblas-dev package on their repository. So, for this purpose, we will try to build & install OpenBLAS from source.

OpenBLAS is an optimized BLAS (Basic Linear Algebra Subprograms) library based on GotoBLAS 2 1.13 BSD version. OpenBLAS is used by several software, tool & high level library related to scientific computing, machine learning and image processing, like GNU Octave, OpenCV, etc.

General Information

• OS : Ubuntu 14.04
• Architecture : Armv7 (ARM 32bit)

Download, Build & Install OpenBLAS

• Clone OpenBLAS repositories,

git clone https://github.com/xianyi/OpenBLAS.git
cd OpenBLAS/

• Build OpenBLAS using target CORTEX15 (Jetson TK1 Processor)

make TARGET=CORTEXA15

• The full target list is in the file TargetList.txt ,
• If you want to compile this library with OpenMP parallelism, just add flag USE_OPENMP=1, you should set the OMP_NUM_THREADS environment variable;

export OMP_NUM_THREADS=4
make TARGET=CORTEXA15 USE_OPENMP=1

• Install library to /usr/local ,

sudo make PREFIX=/usr/local install

Test OpenBLAS

• Test OpenBLAS installation,

grep OPENBLAS_VERSION /usr/local/include/openblas_config.h

• The output should look like this,

#define OPENBLAS_VERSION " OpenBLAS 0.3.17.dev "

• Which means we have successfully installed OpenBLAS version 0.3.17.dev
• After this library successfully installed, we can try to build other library / software that utilizing OpenBLAS on their work.

Source :

• https://github.com/xianyi/OpenBLAS
• https://en.wikipedia.org/wiki/OpenBLAS