Building hpic2 on Centos 7

This document contains the Centos 7 build instructions for hPIC2 as of March 2023 (3/31/2023).

CENTOS 7 as of Nov. 2024 is no longer maintained. Operability of these instructions is no longer guaranteed.

Update Dependencies and install gcc

Assuming in an administrator non-root account

bash
sudo yum update -y
sudo yum install -y epel-release
sudo yum update -y
sudo yum --enablerepo epel groupinstall -y "Development Tools"
sudo yum --enablerepo epel install -y curl findutils gcc-c++ gcc gcc-gfortran git gnupg2 hostname iproute redhat-lsb-core make patch python3 python3-pip python3-setuptools unzip
sudo python3 -m pip install boto3                                    #This will give an warning don't worry about it

sudo yum install -y centos-release-scl
sudo yum install -y devtoolset-N-gcc-*                               #The N should be replaced with a number >=7, 9 has been used before with success
su root                                                              #Switch to root for the next command
echo "source scl_source enable devtoolset-N" >> ~/.bashrc
exit                                                                 #leave root
source ~/.bashrc                                                     #reload bashrc file

Install spack

Download spack,

git clone -c feature.manyFiles=true https://github.com/spack/spack.git

and source spack environment (consider adding this to your .bashrc)

. spack/share/spack/setup-env.sh

If the second command fails run this next set

#su root #Go to root
echo "alias spack='<PATH TO SPACK FOLDER>/spack/bin/spack'" >> ~/.bashrc
#exit #leave root

Use spack to setup to install hpic2

Do the following steps where you want hpic2 to be saved. First, make a new spack repo

spack repo create hpic2_dev

Register spack repo

spack repo add hpic2_dev
cd hpic2_dev/packages

Download hpic2 source, making sure to include the submodules, and optionally also RustBCA

git clone --recurse-submodules https://github.com/lcpp-org/hpic2.git
git clone https://github.com/lcpp-org/RustBCA.git
mv RustBCA rustbca

Remove old gcc compilers

Check if there are old compiler versions (like 4.x.x),

spack compiler list

Add new compilers / makesure they are all loaded

spack compiler find

Open the spack compilers file (This may be different, the output of the previous two commands will tell you where this file is)

vim ~/.spack/linux/compilers.yaml

In the spack compilers.yaml delete the entries for the old (4.x.x) gcc compilers. In step one you should have installed a newer version, and this will force spack to use the new gcc compiler.

Use Spack to install hpic2

Use spack to install hpic2. A list of the available variants can be found at the following link (link).

cd hpic2_dev/packages
spack install hpic2+testing+rustbca ^kokkos+openmp