ATLAS prebuilt binaries (NI LabVIEW 18.0)

ATLAS is tricky to build, so the binaries are provided here (in the releases directory) instead of providing makefiles to build them. However, if you need to build it, here's how I did it.

Versions:

• libgfortran 6.3.0
• ATLAS 3.10.3
• LAPACK 3.7.1

There are two pieces that need to be built -- a fortran compiler (cross compiled from Ubuntu 16.04) and then ATLAS itself.

Cross compiling the fortran compiler

System setup (Ubuntu 16.04)

apt install build-essential python diffstat chrpath texinfo

Build fortran

git clone https://github.com/ni/nilrt.git
cd nilrt
git checkout nilrt/18.0

MACHINE=xilinx-zynq DISTRO=nilrt ./nibb.sh config

Modify `conf/local.conf', add the following to the end:

FORTRAN_forcevariable = ",fortran"
RUNTIMETARGET_append_pn-gcc-runtime = " libquadmath"

PREFERRED_VERSION_libgfortran="6.3.0"
PREFERRED_VERSION_nativesdk_libgfortran="6.3.0"

The openembedded release that NI is using requires some patches:

pushd sources/openembedded-core/meta/recipes-devtools/gcc/
git fetch https://github.com/openembedded/openembedded-core
git cherry-pick 2c2f20a9756eccafac776e45e319af7666e6da96
git cherry-pick 00fba52c8a6f6383137cf89fc7aa34cc3e2ff45f
git cherry-pick 753de3328d36b95c029d2946660f80e083823678
popd

Now, you can build fortran:

. env-nilrt-xilinx-zynq
bitbake gcc
bitbake libgfortran

Install fortran

There will be ipk files in build/tmp_nilrt_3_0_xilinx-zynq-glibc/deploy/ipk/cortexa9-vfpv3/. Copy these to the roborio:

• libgfortran
• libgfortran-dev
• gfortran
• gfortran-symlinks

SSH as admin, install the packages:

opkg install *.ipk

Now you're ready to build ATLAS.

Building ATLAS (RoboRIO)

Warning: ATLAS needs a lot of memory, so grab an empty USB memory stick (4GB+) and convert it to a linux swap partition, and then activate the swap.

Download ATLAS 3.10.3 and LAPACK 3.8.0. Copy to the RoboRIO, and unpack ATLAS. Execute:

opkg install bzip2 gcc-symlinks binutils-symlinks make
ulimit -s 8096
tar -xf atlas3.10.3.tar.bz2

cd ATLAS
mkdir BUILD
cd BUILD

../configure --shared --with-netlib-lapack-tarfile=/home/admin/lapack-3.8.0.tgz -m 667
make
make check
make install

Be warned that ATLAS will take the RoboRIO to the edge of it's disk space capacity, so remove anything from the system that you don't need. I found that I had to delete a lot of NI builtin stuff that wasn't needed for the system to run. I also deactivated a lot of system services that were eating large amounts of memory.

The ATLAS files will be installed to /usr/local/atlas, you can grab them remotely into a tar.gz file via:

ssh roborio "cd /usr/local/atlas; tar -c ." | gzip > atlas.tar.gz