Big model using big RAM

[rafal.brzegowy]

Are you using the double precision version (“i8”)?

Simulation crashed with big model

I just used the OS. Not the same sort of problem you are doing but up to 4,000,000 nodes. For Pastix I had to get a version compiled in I8 for much beyond 500,000 nodes and for lots of nodes, beyond 1,000,000 or so it is slower. Apparently the index numbering on an array goes beyond 4i at about that point. I also have run 1 problem “Out of Core” which requires some set up. I routinely run 2,000,000 nodes, but I have 64GM of ram. Thinking about what to do for my next PC, it needs more memory…

CalculiX and PaStiX solver Windows version

ccx 2.22 + exodus + PARDISO + i8 https://www.dropbox.com/scl/fi/pz3rbbtctm1sott0iolj2/ccx-2.22-exodus-int32_int64.7z?rlkey=asvn3jslais733s9sdczyapmu&st=rsq2sbaj&dl=0

and add:
set MKL_INTERFACE_LAYER=ILP64