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You skimmed too fast, from that same article: > We say that an instruction x precedes an instruction y, sometimes denoted x ? y, if x must complete before y ca
by bruce343434 4y ago
You skimmed too fast, from that same article:
> We say that an instruction x precedes an instruction y, sometimes denoted x ? y, if x must complete before y can begin. In a diagram for the dag, x ? y means that there is a positive-length path from x to y. If neither x ? y nor y ? x, we say the instructions are in parallel, denoted x ? y. The figure below illustrates a multithreaded dag:
- Jtsummers 4y agoThat quote presents exactly the confusion for GP. x ? y is described to mean both that x precedes y and that x and y are in parallel. It suggests that something got lost in translation here. https://www.cprogramming.com/parallelism.html https://www.cprogramming.com/parallelism.html Non-archive link: x < y (x precedes y) and x | y (x is parallel with y).