On 07 Aug 2014, at 14:31, Jose E. Roman <[email protected]> wrote: > > El 07/08/2014, a las 14:05, John Travers escribió: > >> On 07 Aug 2014, at 13:30, Jose E. Roman <[email protected]> wrote: >> >>> -st_type precond >> >> I tried that and got: >> >> [0]PETSC ERROR: No support for this operation for this object type >> [0]PETSC ERROR: EPSGD only works with KSPPREONLY >> >> So I set: >> -st_ksp_type preonly >> >> and get: >> >> [0]PETSC ERROR: No support for this operation for this object type >> [0]PETSC ERROR: ST does not have apply >> >> My full command line is currently: >> >> -eps_nev 1 -eps_tol 1e-10 -eps_type gd -st_type precond -st_ksp_type preonly >> >> I also tried >> >> -st_matmode shell >> >> But it made no difference. >> >> Really, thank you very much for your patience. I’m trying to educate myself >> about slepc (which is awesome BTW, so thank you), but there are a huge >> number of options! >> >> > > These options work well with SLEPc's ex1.c, so you must have something > different in your source code. Send the code excerpt that sets EPS/ST options. > > Jose >
Yes, of course you were correct. I was doing something strange with the ST object. It now works. Thanks again for your help! John
