StackThreads/MP: version 0.77 User's Guide

11.10: What is ST_POLLING for?

Q: Why must I must insert ST_POLLING?

A: ST_POLLING does two things. One is to distribute threads among processors and the other is to manage stack. Without inserting ST_POLLING at all, your program never runs faster than on single processor. See Where should you insert ST POLLING for details.