Number of Iterations-effects of PC
 

Hello,
I am simulating a laminar flat plate; the residual (rms) based criterium is the one set for getting convergence. Do the parameters of my PC affect the number of iterations I need for convergence? I did think they affect the simulation in term of time only, but I noticed different approximations in computing the rms with three different PCs.
Why?
Thank you in advance,


matilde