GooFit is split into GPU and CPU versions on Linux. If you want to install for gpus, you can do:

conda install goofit goofit-proc=*=gpu

You can add cudatoolkit=10.0 or 9.2 if you want a specific toolkit version.

The OpenMP CPU version is default, but can be explicitly requested with:

conda install goofit goofit-proc=*=cpu