You are aware that the instructions you’re following are to compile the program from the source code, with all that entails? No current version of pytorch you can possibly install will have the feature you’re after (old compute capability support), so the entire backend of the program needs to be built again to add it in, then that version you have just built will be installed instead of the online ones.
If you don’t follow the instructions, then it will either fail to build or be missing features, which would defeat the objective.
The only thing that you should be changing in these settings is (I think) wherever the desired compute capability is specified.
One problem you might face is lack of support for the current CUDA version, with the added problem that the 730 is old enough and low enough in Nvidia’s product stack that they no longer have a page for it.