Hello! I'm using matrix-free formulation and KSPLSQR to solve normal equations system:
(A'*A)b = -g I managed to write all necessary code: call MatCreateShell(MPI_COMM_WORLD,m,N,N,N,PETSC_NULL_INTEGER,H,ierr) call MatShellSetOperation(H,MATOP_MULT,MFMatMult,ierr) call KSPCreate(MPI_COMM_WORLD,ksp,ierr);CHKERRQ(ierr) call KSPSetType(ksp,KSPLSQR,ierr);CHKERRQ(ierr) call KSPGetPC(ksp,pc,ierr);CHKERRQ(ierr) call PCSetType(pc,PCNONE,ierr);CHKERRQ(ierr) call KSPSetOperators(ksp,H,PETSC_NULL_OBJECT,SAME_PRECONDITIONER,ierr);CHKERRQ(ierr) call KSPSolve(ksp,g,b,ierr);CHKERRQ(ierr) but fail in KSPSolve stage with that: [0]PETSC ERROR: --------------------- Error Message ---------------------------- -------- [0]PETSC ERROR: Object is in wrong state! [0]PETSC ERROR: Mat object's type is not set: Argument # 1! [0]PETSC ERROR: ---------------------------------------------------------------- -------- [0]PETSC ERROR: Petsc Release Version 3.1.0, Patch 7, Mon Dec 20 14:26:37 CST 20 10 [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: D:\mt-soft\multiem\INV3D\INV3Dwin\x64\debug\em3d.exe on a cygwin -cx named MT0. by Unknown Mon Jun 27 16:18:43 2011 [0]PETSC ERROR: Libraries linked from /cygdrive/d/dev/petsc-3.1-p7/cygwin-cxx-de bug/lib [0]PETSC ERROR: Configure run at Fri Mar 4 10:10:06 2011 [0]PETSC ERROR: Configure options --with-cc="win32fe cl" --with-fc="win32fe ifor t" --with-cxx="win32fe cl" --with-windows-graphics=0 --download-f-blas-lapack=1 --with-precision=double --with-scalar-type=complex --with-clanguage=cxx --with-m pi-include=/cygdrive/d/Dev/HPC_2008_SDK/Include --with-mpi-lib="[/cygdrive/d/Dev /HPC_2008_SDK/Lib/amd64/msmpi.lib,/cygdrive/d/Dev/HPC_2008_SDK/Lib/amd64/msmpife c.lib]" --useThreads=0 --useThreads=0 [0]PETSC ERROR: ---------------------------------------------------------------- -------- [0]PETSC ERROR: MatNorm() line 4507 in src/mat/interface/D:\dev\PETSC-3.1-P\src\mat\INTERF~1\matrix.c [0]PETSC ERROR: KSPSolve_LSQR() line 90 in src/ksp/ksp/impls/lsqr/D:\dev\PETSC-3.1-P\src\ksp\ksp\impls\lsqr\lsqr.c Any suggestions? Do I have to set MATOP_NORM operation? Then how? Regards, Alexander
