SSIS executed from server other than source and destination

I am executing an SSIS package from BIDS on a 3rd server (C) which is not my Source server (A) or Destination server (B).The SSIS package imports 30 million records from Server (A) to Server(B), also does some data transformations. Does my SSIS package use any server (C) resources? If yes ,what resources does the SSIS use on server (C) like memory and so on ?

If I use a SORT transformation in my package, does the package use my Server (C) memory to do the sort operation?

Thank you!