An apparatus, program product and method dynamically assign threads to computer resources in a multithreaded computer including a plurality of physical subsystems based upon specific "types" associated with such threads. In particular, thread types are allocated resources that are resident within the same physical subsystem in a computer, such that newly created threads and/or reactivated threads of those particular thread types are dynamically assigned to the resources allocated to their respective thread types. As such, those threads sharing the same type are generally assigned to computer resources that are resident within the same physical subsystem of a computer, which often reduces cross traffic between multiple physical subsystems resident in a computer, and thus improves overall system performance.