I have a Stiffness matrix and an RHS Matrix, that I solve with :
set(StiffGlobal, solver=UMFPACK); xx=StiffGlobal^-1*RHSGlobal;
When I do this in local on my machine, there is no problem. However when I do the same thing on a cluster, I get this error :
Error: fgmres do not converge nb end =1 current line = 19 Assertion fail : (0) line :254, in file ../femlib/VirtualSolverCG.hpp Assertion fail : (0) line :254, in file ../femlib/VirtualSolverCG.hpp err code 6 , mpirank 0
Is there another argument to add in the solver ?
Here my code to reproduce this example.
Test_UMFPACK.zip (16.4 KB)
Thank you in advance,