Hello orman21, Are you getting any error message during the installation? If yes then kindly share us the screenshot of the error message so that we can look deeper into it. We also request you to try with a different iso file and let us know how it works.
I have the same issue, Running Parallels 11.2 and using file openSUSE-tumbleweed-DVD-X86_64-snapshot20160504-Media. As a side note I have install this on my Windows 10 system using Virtualbox and had no issues. Getting same error as orman21