Suppose that I have a script executable on a Linux remote server shared by other employees. (it could be a bash .sh script, a julia .jl script, for example). I believe tasks of all users are affected FIFO. How can I assure that there is exactly a fixed number (for instance 4 or 1) of core(s) totally available for my numerical experiments?

I have to launch numerical experiments on such a remote server and often, the load capacity of the server exceeds 31 cores out of 32 and I don’t have root privileges on this server.

Note that the fixed number of cores that are allocated to my program could be only 1 CPU core if it is not possible to set it to a higher value.