fmg!?!?!?
My FMG completes level 4, but when it goes to level 3, it says:
Normalized Residual = 1.#QNAN So what happened between level 4 and 3? at level 4, it says: FMG: FAS reached maximum iterations. Normalized residual = 729.568 FMG: Interpolate solution on next level...end then it begins the messed up level 3. The 1.#QNANs continue through levels 2 and 1. Finally, it ends with: Primitive Error at Node 7: Floating point exception ->1.->2.->3.->4.->5.<<<<< What does all this mean? And how do I fix it? Thanks! Michelle :confused: |
Quote:
If that doesn't work, you could try increasing the number of multigrid levels, increasing the number of iterations performed on course multigrid levels, or lowering the residual threshold on the course multigrid levels. You should also make sure that your boundary conditions, grid, and case setup are all ok first. Does your simulation bomb if you run it without fmg? |
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