How to remotely run a program with SSH independent of my current computer

How to remotely run a program with SSH independent of my current computer

So I want to run a program from my Desktop, but I would like to have my
Desktop "forget it", so that if my Desktop crashes or shuts down it won't
affect the SSH program.
In other words: I want the task to be executed on the remote computer
independent of the computer, with which I'm sending the task.
Why would I wanna do this? Because I'm executing a huge task on a huge
computer (64 cores computer), which should take days to evaluate, but I
don't want my current computer to have to wait for it. The last time my
Desktop froze, and I lost all the progress I had.
I can imagine that this question has been answered a million times
already, but I don't know what terminology I have to search for, and I
don't know what this process is called.
Thanks.