latest version does not support WITH_NO_MPI=True

[luisaforozco]

Hello, I tried to install AMGX latest version with the flag WITH_NO_MPI=True, but it kept on searching for MPI and showing an error after not finding it. In v.2.3.0 this is not a problem.

Also, I noticed that the base directory that still exist in v.2.3.0, has been removed in the latest version.

[mattmartineau]

Apologies, likely I have made a change in the CMake that broke the non-MPI builds. I'll add to our regression tests to avoid in future, which platform are you on?

[luisaforozco]

I'm on Linux kernel: 4.18.0-348.23.1.el8_5.x86_64

And the gcc version is (GCC) 10.2.0

[marsaev]

Hi @luisaforozco ,

Can you share you cmake command line and it's output and what error specifically do you get?

Thanks,

[luisaforozco]

Hello, sorry for my late response. Here is how I ended up building AMGX:

git clone https://github.com/NVIDIA/AMGX.git
cd AMGX
git checkout tags/v2.3.0 -b version_v2.3.0
mkdir build
cd build
cmake -DCMAKE_NO_MPI=True ../
make -j 16 all