Re: [deal.II] Weak scaling running out of memory

2023-06-07 Thread Lucas Myers
Hi Martin, The problem that you suggest was indeed what was happening. Thanks so much for the help! I imagine this helped me avoid a long debugging process. As an aside, is this something that would qualify for an error message? Something like putting an Assert line at the top of any number of fu

Re: [deal.II] Weak scaling running out of memory

2023-06-07 Thread Martin Kronbichler
Dear Lucas, Without seeing your code, it is difficult to nail down the issue. But by far the most common mistake that lead to this type of problem in my codes is that I forgot to initialize an AffineConstraints object with an index set for the locally relevant DoFs, i.e., I was missing this li

[deal.II] Weak scaling running out of memory

2023-06-07 Thread Lucas Myers
Hi everyone, I'm trying to run a scaling analysis on my code, but when I make the system too large I get a (Killed) error, which I strongly suspect has to do with memory issues. I'm unsure why this is happening, because I am increasing resources proportional to the system size. Details: I'm t