allowableThreads -- the current maximum number of simultaneously running tasks

• Usage:

  allowableThreads = n

• Consequences:

  • The number of threads devoted to computation of tasks is set to n. The number includes the main thread, but not the threads started independently by the garbage collector. Thus the maximum number of background tasks running simultaneously will be n-1. The value of n should be not larger than the value of maxAllowableThreads.