Hi Barry, yes we are in mpich2 1.0.2p1.
Etienne -----Message d'origine----- De?: owner-petsc-users at mcs.anl.gov [mailto:owner-petsc-users at mcs.anl.gov] De la part de Barry Smith Envoy??: jeudi 25 septembre 2008 18:17 ??: Etienne PERCHAT Cc?: petsc-users at mcs.anl.gov Objet?: Re: ****MJ-REJECTED**** RE: Non repetability issue and difference between 2.3.0 and 2.3.3 Are the old and new version of PETSc both using the EXACT SAME MPI? Barry On Sep 25, 2008, at 11:15 AM, Etienne PERCHAT wrote: > > Matt, > > Thanks a lot for your answers. > > Please find attached the asked files zipped (I used an ascii output). > > I tested with GMRES but I have PETSC_ERROR s. I don't understand > why ... > > [0]PETSC ERROR: KSPSolve_GMRES() line 231 in > src/ksp/ksp/impls/gmres/d:\DEVELO~1\TEST_EP\PETSC-~1.3-P\PETSC-~1.3-P > \sr > c\ > sp\ksp\impls\gmres\gmres.c > [0]PETSC ERROR: KSPSolve() line 379 in > src/ksp/ksp/interface/d:\DEVELO~1\TEST_EP\PETSC-~1.3-P\PETSC-~1.3-P > \src\ > ksp\ksp\ > NTERF~1\itfunc.c > [2]PETSC ERROR: Object is in wrong state! > [2]PETSC ERROR: Currently can use GMRES with only preconditioned > residual (right preconditioning not coded)! > > > I tried with BICG, BICGSTAB and FGMRS. It works and I notice the same > behaviour. > > I tried using another preconditionner (ie SOR) with again PCR it is > even > worse: > > Iteration= 171 residual= 1.164976140862921e+001 > Iteration= 171 residual= 1.171859643971711e+001 > > I would like to stress also that it was inexact for me to say that the > residual vary around iteration 40. It happens earlier around > increment 6 > (see below) > > > > * Initial Residual : 1.50972105381228e+006 > Iteration= 1 residual= 9.592364159822660e+004 > Iteration= 2 residual= 8.460449880782055e+004 > Iteration= 3 residual= 1.020430403443245e+005 > Iteration= 4 residual= 3.924181572770592e+004 > Iteration= 5 residual= 2.715343433370132e+004 > Iteration= 6 residual= 3.795381174726432e+004 > Iteration= 7 residual= 2.435841639251617e+004 > Iteration= 8 residual= 1.455427563694975e+004 > Iteration= 9 residual= 2.386233690946949e+004 > Iteration= 10 residual= 2.733829425421920e+004 > Iteration= 15 residual= 1.322501801249381e+004 > Iteration= 20 residual= 7.271229329992430e+003 > > > * Initial Residual : 1.50972105381228e+06 > Iteration= 1 residual= 9.592364159822660e+004 > Iteration= 2 residual= 8.460449880782055e+004 > Iteration= 3 residual= 1.020430403443245e+005 > Iteration= 4 residual= 3.924181572770592e+004 > Iteration= 5 residual= 2.715343433370132e+004 > Iteration= 6 residual= 3.795381174726426e+004 > Iteration= 7 residual= 2.435841639251620e+004 > Iteration= 8 residual= 1.455427563694976e+004 > Iteration= 9 residual= 2.386233690946967e+004 > Iteration= 10 residual= 2.733829425421909e+004 > Iteration= 15 residual= 1.322501801248572e+004 > Iteration= 20 residual= 7.271229329990202e+003 > > > Etienne > <MatAndVec.zip>
