Try running with -eps_gen_hermitian (since ex7 does not assume that the problem is symmetric). Jose
El 27/07/2011, a las 12:51, John Chludzinski escribi?: > I let the SLEPc code run for ~45 min. when it terminated with the same values > I was getting using DSYGV in LAPACK. > > If I write code to directly call LAPACK (i.e., DSYGV), it uses ~3.93 min. > What's up with this? > > ---John > > > On Wed, Jul 27, 2011 at 5:29 AM, John Chludzinski <jchludzinski at gmail.com> > wrote: > I'm trying to create a dense matrices from values I'm reading from (binary) > files. I tried the following code: > > Mat A; > int n = SIZE; //4002 > double *K = (double *)calloc( sizeof(double), SIZE*SIZE ); > ... > MatCreateSeqDense(PETSC_COMM_SELF, n, n, K, &A); > MatView(A,PETSC_VIEWER_BINARY_(PETSC_COMM_WORLD)); > ierr = PetscFinalize();CHKERRQ(ierr); > > NOTE:*** I'm converting K to the FORTRAN column major from the C row major > order before I call MatCreateSeqDense(...). > > This appears to work but when I try to use the 2 matrices I thus created with > SLEPc ex7 (generalized eigenvalue problem) it never terminates, using: > > ./ex7.exe -f1 k.dat -f2 m.dat -eps_type lapack -eps_smallest_real > > Am I creating the proper PETSc binary (canonical) format for my 2 matrices? > > ---John > > >
