Thanks Hong, The complete error message is attached. I think I just had too big of a matrix. The matrix i'm trying to factor is 327680 x 327680
[0]PETSC ERROR: --------------------- Error Message ------------------------------------ [0]PETSC ERROR: Out of memory. This could be due to allocating [0]PETSC ERROR: too large an object or bleeding by not properly [0]PETSC ERROR: destroying unneeded objects. [0]PETSC ERROR: Memory allocated 2047323584 Memory used by process 2074058752 [0]PETSC ERROR: Try running with -malloc_dump or -malloc_log for info. [0]PETSC ERROR: Memory requested 1258466480! [0]PETSC ERROR: ------------------------------------------------------------------------ [0]PETSC ERROR: Petsc Release Version 3.0.0, Patch 2, Wed Jan 14 22:57:05 CST 2009 [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: ./RealTimeImaging on a gcc-4.1.2 named DIPWS019 by dfuentes Wed Mar 11 20:30:37 2009 [0]PETSC ERROR: Libraries linked from /usr/local/petsc/petsc-3.0.0-p2/gcc-4.1.2-mpich2-1.0.7-dbg/lib [0]PETSC ERROR: Configure run at Sat Jan 31 06:53:09 2009 [0]PETSC ERROR: Configure options --download-f-blas-lapack=ifneeded --with-mpi-dir=/usr/local --with-matlab=1 --with-matlab-engine=1 --with-matlab-dir=/usr/local/matlab2007a --CFLAGS=-fPIC --with-shared=0 [0]PETSC ERROR: ------------------------------------------------------------------------ [0]PETSC ERROR: PetscMallocAlign() line 61 in src/sys/memory/mal.c [0]PETSC ERROR: PetscTrMallocDefault() line 194 in src/sys/memory/mtr.c [0]PETSC ERROR: PetscFreeSpaceGet() line 14 in src/mat/utils/freespace.c [0]PETSC ERROR: MatLUFactorSymbolic_SeqAIJ() line 381 in src/mat/impls/aij/seq/aijfact.c [0]PETSC ERROR: MatLUFactorSymbolic() line 2289 in src/mat/interface/matrix.c [0]PETSC ERROR: KalmanFilter::DirectStateUpdate() line 456 in unknowndirectory/src/KalmanFilter.cxx [0]PETSC ERROR: GeneratePRFTmap() line 182 in unknowndirectory/src/MainDriver.cxx [0]PETSC ERROR: main() line 90 in unknowndirectory/src/MainDriver.cxx application called MPI_Abort(MPI_COMM_WORLD, 55) - process 0[unset]: aborting job: application called MPI_Abort(MPI_COMM_WORLD, 55) - process 0 On Thu, 12 Mar 2009, Hong Zhang wrote: > > David, > > I do not see any problem with the calling sequence. > > The memory is determined in MatLUFactorSymbolic(). > Does your code crashes within MatLUFactorSymbolic()? > Please send us complete error message. > > Hong > > On Wed, 11 Mar 2009, David Fuentes wrote: > >> >> Hello, >> >> I have a sparse matrix, A, with which I want to solve multiple right hand >> sides >> with a direct solver. Is this the correct call sequence ? >> >> >> MatGetFactor(A,MAT_SOLVER_PETSC,MAT_FACTOR_LU,&Afact); >> IS isrow,iscol; >> MatGetOrdering(A,MATORDERING_ND,&isrow,&iscol); >> MatLUFactorSymbolic(Afact,A,isrow,iscol,&info); >> MatLUFactorNumeric(Afact,A,&info); >> MatMatSolve(Afact,B,X); >> >> >> my solve keeps running out of memory >> >> "[0]PETSC ERROR: Memory requested xxx!" >> >> >> is this in bytes? I can't tell if the problem I'm trying to solve >> is too large form my machine or if I just have bug in the call sequence. >> >> >> >> >> thank you, >> David Fuentes >> >