Barry, gmres produces the same result. What does that mean?
On 22.03.2012 21:10, Barry Smith wrote: > Ok, first thing to confirm is if other KSP also produce different > results. Run both exactly the same but use -ksp_type gmres on both; does it > produce different results or the same? > > Barry > > On Mar 22, 2012, at 12:30 PM, Alexander Grayver wrote: > >> Jed, >> >> Ok, I see. Initially I've changed solver because I observed one thing. I >> have two petsc-dev (one is older than the other) versions compiled. >> Running the same program with both gives different results: >> >> ./solveTest -ksp_view -ksp_converged_reason -ksp_monitor_true_residual >> -log_summary -mat_type aij -ksp_rtol 1.0e-7 -ksp_type tfqmr -pc_type sor >> -ksp_max_it 750 >> 0 KSP preconditioned resid norm 9.760858225033e-10 true resid norm >> 4.108026443997e-08 ||r(i)||/||b|| 1.000000000000e+00 >> 1 KSP preconditioned resid norm 9.497939702484e-10 true resid norm >> 3.591828545356e-08 ||r(i)||/||b|| 8.743440662618e-01 >> 1 KSP preconditioned resid norm 1.341212527158e-09 true resid norm >> 3.754099340764e-08 ||r(i)||/||b|| 9.138449793207e-01 >> 2 KSP preconditioned resid norm 9.481744679086e-10 true resid norm >> 3.710424003325e-08 ||r(i)||/||b|| 9.032132713620e-01 >> 2 KSP preconditioned resid norm 1.340878639500e-09 true resid norm >> 3.730261027312e-08 ||r(i)||/||b|| 9.080421166135e-01 >> 3 KSP preconditioned resid norm 9.481415577317e-10 true resid norm >> 3.725585425324e-08 ||r(i)||/||b|| 9.069039540306e-01 >> ... >> 750 KSP preconditioned resid norm 1.340874209607e-09 true resid norm >> 3.726506102951e-08 ||r(i)||/||b|| 9.071280708031e-01 >> Linear solve did not converge due to DIVERGED_ITS iterations 750 >> KSP Object: 1 MPI processes >> type: tfqmr >> maximum iterations=750, initial guess is zero >> tolerances: relative=1e-07, absolute=1e-50, divergence=10000 >> left preconditioning >> using PRECONDITIONED norm type for convergence test >> PC Object: 1 MPI processes >> type: sor >> SOR: type = local_symmetric, iterations = 1, local iterations = 1, >> omega = 1 >> linear system matrix = precond matrix: >> Matrix Object: 1 MPI processes >> type: seqaij >> rows=1375920, cols=1375920 >> total: nonzeros=17671714, allocated nonzeros=17671714 >> total number of mallocs used during MatSetValues calls =0 >> not using I-node routines >> >> Using Petsc Development HG revision: >> 59ca71b85d784abbe22f12c34ffcb2ccc6dc68b0 HG Date: Tue Mar 20 01:05:13 2012 >> -0500 >> Configure options: --with-petsc-arch=openmpi-intel-complex-release-c >> --with-mpi-dir=/opt/mpi/intel/openmpi-1.4.2 --with-scalar-type=complex >> --with-precision=double --with-blas-lapack-dir=/usr/local/lib --with-x=0 >> --with-debugging=0 >> >> ####################################### >> And now second one: >> ./solveTest -ksp_view -ksp_converged_reason -ksp_monitor_true_residual >> -log_summary -mat_type aij -ksp_rtol 1.0e-7 -ksp_type tfqmr -pc_type sor >> -ksp_max_it 750 >> 0 KSP preconditioned resid norm 9.760858225034e-10 true resid norm >> 4.108026443997e-08 ||r(i)||/||b|| 1.000000000000e+00 >> 1 KSP preconditioned resid norm 9.497930576113e-10 true resid norm >> 3.591633653854e-08 ||r(i)||/||b|| 8.742966246242e-01 >> 1 KSP preconditioned resid norm 1.341211098002e-09 true resid norm >> 3.754049143693e-08 ||r(i)||/||b|| 9.138327600539e-01 >> 2 KSP preconditioned resid norm 9.481662292281e-10 true resid norm >> 3.709648505700e-08 ||r(i)||/||b|| 9.030244951612e-01 >> 2 KSP preconditioned resid norm 1.340863953080e-09 true resid norm >> 3.730358317575e-08 ||r(i)||/||b|| 9.080657995827e-01 >> 3 KSP preconditioned resid norm 9.481308142928e-10 true resid norm >> 3.725036905334e-08 ||r(i)||/||b|| 9.067704300630e-01 >> ... >> 230 KSP preconditioned resid norm 8.875661094394e-17 true resid norm >> 1.062030983067e-14 ||r(i)||/||b|| 2.585258389996e-07 >> Linear solve converged due to CONVERGED_RTOL iterations 230 >> KSP Object: 1 MPI processes >> type: tfqmr >> maximum iterations=750, initial guess is zero >> tolerances: relative=1e-07, absolute=1e-50, divergence=10000 >> left preconditioning >> using PRECONDITIONED norm type for convergence test >> PC Object: 1 MPI processes >> type: sor >> SOR: type = local_symmetric, iterations = 1, local iterations = 1, >> omega = 1 >> linear system matrix = precond matrix: >> Matrix Object: 1 MPI processes >> type: seqaij >> rows=1375920, cols=1375920 >> total: nonzeros=17671714, allocated nonzeros=17671714 >> total number of mallocs used during MatSetValues calls =0 >> not using I-node routines >> >> Using Petsc Development HG revision: >> a4dae06b4d05ef5b78a9a9aa2cbc31b2b158834f HG Date: Wed Feb 08 11:29:52 2012 >> -0600 >> Configure options: --with-petsc-arch=openmpi-intel-complex-release-f-mkl >> --with-fortran-interfaces=1 --download-superlu --download-superlu_dist >> --download-mumps --download-parmetis --download-ptscotch --download-metis >> --with-scalapack-lib=/opt/intel/Compiler/11.1/072/mkl/lib/em64t/libmkl_scalapack_lp64.a >> --with-scalapack-include=/opt/intel/Compiler/11.1/072/mkl/include >> --with-blacs-lib=/opt/intel/Compiler/11.1/072/mkl/lib/em64t/libmkl_blacs_openmpi_lp64.a >> --with-blacs-include=/opt/intel/Compiler/11.1/072/mkl/include >> --with-mpi-dir=/opt/mpi/intel/openmpi-1.4.2 --with-scalar-type=complex >> --with-blas-lapack-lib="[/opt/intel/Compiler/11.1/072/mkl/lib/em64t/libmkl_intel_lp64.a,/opt/intel/Compiler/11.1/072/mkl/lib/em64t/libmkl_intel_thread.a,/opt/intel/Compiler/11.1/072/mkl/lib/em64t/libmkl_core.a,/opt/intel/Compiler/11.1/072/lib/intel64/libiomp5.a]" >> --with-precision=double --with-x=0 --with-debugging=0 >> >> >> Well, two version compiled with different lines, but still I don't think >> this is the reason... >> Where actually to look at? >> >> Thanks. >> >> On 22.03.2012 15:42, Jed Brown wrote: >>> On Thu, Mar 22, 2012 at 04:23, Alexander Grayver<agrayver at >>> gfz-potsdam.de> wrote: >>> I've got the following error when applying bicg+sor to my problem: >>> >>> mt-soft/solveTest> ./solveTest -ksp_view -ksp_converged_reason >>> -ksp_monitor_true_residual -log_summary -mat_type aij -ksp_rtol 1.0e-7 >>> -ksp_type bicg -pc_type sor -ksp_max_it 750 >>> [0]PETSC ERROR: --------------------- Error Message >>> ------------------------------------ >>> [0]PETSC ERROR: No support for this operation for this object type! >>> [0]PETSC ERROR: PC does not have apply transpose! >>> [0]PETSC ERROR: >>> ------------------------------------------------------------------------ >>> [0]PETSC ERROR: Petsc Development HG revision: >>> 59ca71b85d784abbe22f12c34ffcb2ccc6dc68b0 HG Date: Tue Mar 20 01:05:13 2012 >>> -0500 >>> [0]PETSC ERROR: See docs/changes/index.html for recent updates. >>> [0]PETSC ERROR: See docs/faq.html for hints about trouble shooting. >>> [0]PETSC ERROR: See docs/index.html for manual pages. >>> [0]PETSC ERROR: >>> ------------------------------------------------------------------------ >>> [0]PETSC ERROR: Configure options >>> --with-petsc-arch=openmpi-intel-complex-release-c >>> --with-mpi-dir=/opt/mpi/intel/openmpi-1.4.2 --with-scalar-type=complex >>> --with-precision=double --with-blas-lapack-dir=/usr/local/lib --with-x=0 >>> --with-debugging=0 >>> [0]PETSC ERROR: >>> ------------------------------------------------------------------------ >>> [0]PETSC ERROR: PCApplyTranspose() line 515 in >>> /home/mt/agrayver/lib/petsc-dev/src/ksp/pc/interface/precon.c >>> [0]PETSC ERROR: KSPSolve_BiCG() line 55 in >>> /home/mt/agrayver/lib/petsc-dev/src/ksp/ksp/impls/bicg/bicg.c >>> [0]PETSC ERROR: KSPSolve() line 434 in >>> /home/mt/agrayver/lib/petsc-dev/src/ksp/ksp/interface/itfunc.c >>> [0]PETSC ERROR: main() line 114 in /home/solveTest.c >>> >>> Any ideas? >>> >>> PCApplyTranspose_SOR is not implemented. It is unfortunately not an >>> operation that is efficient to implement in-place like SOR. >> >> -- >> Regards, >> Alexander >> -- Regards, Alexander
