$ time ./ex7.exe -f1 k.dat -f2 m.dat -eps_gen_hermitian -eps_type lapack -eps_smallest_real > x.out 2>&1
real 19m4.487s user 18m19.650s sys 0m1.762s ---John On Wed, Jul 27, 2011 at 7:03 AM, Jose E. Roman <jroman at dsic.upv.es> wrote: > 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 > > > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20110727/bd4e3646/attachment.htm>