I am currently trying to deploy a project using openmp. I have the flag '-fopenmp' on Travis.
How could I fix that ?
In local I just brew install libopenmp which solved the issue. But not on Travis, what are the options ?
Using cython I got the following ".travis.yml"
os: linux
dist: xenial
language: python
python:
- "3.7"
cache: pip
addons:
apt:
packages:
- patchelf
matrix:
include:
- os: osx
# No version of Python is available via virtualenv on OS X workers, see https://github.com/travis-ci/travis-ci/issues/2312
language: generic
env: TOXENV=py37
fast_finish: true
before_install:
brew install libomp
install:
- pip install --upgrade "pip < 19.1" -r CI/requirements.txt
- python setup.py develop
script:
- pytest
Travis fails while executing :
clang -fno-strict-aliasing -fno-common -dynamic -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/include -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/local/include -I/usr/local/opt/openssl@1.1/include -I/usr/local/opt/sqlite/include -I/usr/local/Cellar/python@2/2.7.17/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c cpt/alphabet.c -o build/temp.macosx-10.13-x86_64-2.7/cpt/alphabet.o -fopenmp
While in local it compiles with python 3.7, how could I fix that aswell ?
On apple's llvm, -fopenmp is not supported. One should use brew's llvm.
The following commands will allow linking openmp:
brew install llvm libomp
export CC=/usr/local/opt/llvm/bin/clang
export CXX=/usr/local/opt/llvm/bin/clang++
For reference, the issue where there are all the commands: https://github.com/bluesheeptoken/CPT/issues/68#issuecomment-563342866. And a working CI script used on Travis CI.