Olivier Desjardins
Olivier Desjardins
Fortran user here. I don't have a strong feeling either way. A `*.hf` extension might be a bit more confusing than a more standard `*_f.h`, but as long as it's...
Thanks for your quick reply! On your first question: I find that SMG and PFMG will crash. ``` Backtrace for this error: #0 0x7f8e81e0a3ff in ??? #1 0x6f9de9 in hypre_PointRelax_core0...
I've just tried running with a single box per processor on my domain, setting the outside of the operator to identity. I find that pfmg fails to converge. So here's...
> The only choice you have is to use a 7-point stencil everywhere. So, outside the domain you need to set a 1 on the diagonal and zeros everywhere else...
One more thing: I just tested SMG on the same problem - it is converging (which I assume would be confirming that the problem is setup properly?) The mesh is...
Okay, I've generated the matrix (it's on 4 processors, so 4 files - happy to redo within a single file if you want). I could probably find something smaller, but...
Hello - I wanted to check in to see if there were any update on the stair-stepping problem? No rush, but please let me know if I can do anything...
Yeah, sorry, the question wasn't particularly clear. I'm hoping to run both 2D and 3D problems with the same hypre calls. To that end, I'm always setting up hypre structured...
Ah okay, thanks for the info!
Hello, I'd like to revisit this issue if at all possible. I've recently encountered a small single-core case involving a discontinuous coefficient Poisson problem with 16*32*1 mesh where I observe...