Build

NOTE: Make sure you cloned the repo with the submodules by running

git submodule init
git submodule update

Prerequisites

• C++17 compiler
• BLAS library (openblas or if compiled with icpc, MKL may be used)
• Python 3
• autoconf

CTE-POWER

This module configuration works:

module load gcc/9.2.0 openblas python

The CTE-POWER has no outgoing connections so pip cannot download the required packages. The solution is to download the packages in your current computer, upload them and install them locally.

1. Download the packages on your host:

pip download -r scripts/requirements.txt -d .pip

2. Upload them to the cluster.
3. Offline install the packages on the cluster:

conda create --name qflex --offline
conda activate qflex
pip install -r scripts/requirements.txt --no-index -f .pip

(You may delete the .pip folder and all its content now)

Finally, build the project running the following:

python setup.py build

If you want to run the tests,

make run-tests

qflex only

If you are interested only in qflex and want to avoid the Python interface, you have to build it in the following way:

autoreconf -i
autoconf
./configure --disable-python_checks --disable-python_tests --disable-pybind11
make

Troubleshooting

ERROR: Could not find a version that satisfies the requirement clang-format==9.0.0

In macOS, you will encounter the following error when downloading the Python packages:

ERROR: Could not find a version that satisfies the requirement clang-format==9.0.0 (from -r scripts/requirements.txt (line 6)) (from versions: none)

ERROR: No matching distribution found for clang-format==9.0.0 (from -r scripts/requirements.txt (line 6))

The reason for this error is that clang-format through Pip is only available for Linux platforms. Just comment the package in scripts/requirements.txt and run it again. clang-format is available through Homebrew on macOS.

brew install clang-format