I was referring to the PageRank_semiring in https://github.com/DrTimothyAldenDavis/GraphBLAS/blob/5e569f2fcb0597b4ad3c60fca1a4ff8e938fd111/Demo/Source/dpagerank

I was referring to the PageRank_semiring in https://github.com/DrTimothyAldenDavis/GraphBLAS/blob/5e569f2fcb0597b4ad3c60fca1a4ff8e938fd111/Demo/Source/dpagerank2.c#L348 https://github.com/DrTimothyAldenDavis/GraphBLAS/blob/5e569f... . I wasn't counting the test for the termination condition -- in the statement in my interview, I assumed the # of iterations could just be given. I would guess that's the case for the Google PageRank computation, since the graph doesn't change so much each month when they compute it, they probably know how many iterations they need.