As of this writing nVidia does not release PowerPC drivers for SUSE.
However, RHEL 7 drivers provided by nVidia can be installed on SUSE. I do not have the hardware to test the drivers so YMMV.
Download the nVidia CUDA package for RHEL 7 ppc64le
Go to CUDA downloads, in the "Select Target Platform" frame click "Linux", "ppc64le", and "RHEL". "7" and "rpm (local)" get selected for you because there is no alternative option.
You should obtain a 1.2G rpm package which you can unpack like
sudo mkdir -p /opt/cuda cd /opt/cuda rpm2cpio ~/Downloads/cuda-repo-rhel7-8-0-local-ga2-8.0.54-1.ppc64le.rpm | sudo cpio -id sudo zypper ar /opt/cuda/var/cuda-repo-8-0-local-ga2 cuda8 sudo zypper ref
Now zypper should ask you about unknown repo key for the cuda8 repo
Download the DKMS package
DKMS is maintained in Bumblebee project. It is a plain script so you can just download any of the binary packages and install it on PowerPC although it is packaged on x86.
sudo zypper in kernel-devel sudo rpm -i ~/Downloads/dkms-188.8.131.52_git20160613-11.1.noarch.rpm
You might also want to install empty ldconfig package ldconfig. On Red Hat ldconfig is a separate package so zypper will complain that you don't have one when installing the X11 driver.
sudo rpm -i ~/Downloads/ldconfig-0-1.1.noarch.rpm
Install the packages
sudo zypper in nvidia-kmod
If you see dkms errors now the driver will not work. On the other hand, if the drivers automagically loads now you have a supported nVidia card. You may try to load the driver manually with
sudo insmod nvidia
Finally, you can install the cuda suite with
sudo zypper in cuda