On 1/8/21 3:58 PM, Zachary 42! wrote:

Yes, the error comes when I try to use the Slepc solver (the matrix builds without errors).  Running the attached file (Sorry, I’v been experimenting trying to get things working so I think I should include what I am testing now), At the bottom of the error output, I get:

----------------------------------------------------------------------------------------------------------------------------------------------------
An error occurred in Line <169> of file </Users/zachary/Documents/dealii/source/lac/slepc_solver.cc> in function
void dealii::SLEPcWrappers::SolverBase::solve(const unsigned int, unsigned int*)
The violated condition was:
ierr == 0
Additional information:
An error with error number 60 occurred while calling a SLEPc function
------------------------------------------------------------------------------------------------------------------------------------------------------

But that's a different error. Have you tried to look up what error code 60 means in SLEPc?

Best
 W.


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Wolfgang Bangerth          email:                 [email protected]
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