[petsc-users] MatDenseRestoreArray run time error

[Barry Smith]

   Siddhesh,

    That example was unfortunately not in the test suite and hence did not work. Note that it is calling MatDenseRestoreArray() on the wrong matrix (A when it should be on A_dense). I've attached a fixed version of the example that should compile and run correctly for you (it does for me).

    Sorry for the inconvenience

   Barry
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> On Dec 10, 2014, at 4:31 AM, siddhesh godbole <siddhesh4godbole at gmail.com> wrote:
> 
> Pardon me,
> This is the full error message
> 
> 
> [0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
> [0]PETSC ERROR: No support for this operation for this object type
> [0]PETSC ERROR: Cannot locate function MatDenseRestoreArray_C in object
> [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html for trouble shooting.
> [0]PETSC ERROR: Petsc Release Version 3.5.2, Sep, 08, 2014 
> [0]PETSC ERROR: ./8D on a arch-linux2-c-debug named iitm by iitm Wed Dec 10 15:48:03 2014
> [0]PETSC ERROR: Configure options --download-mpich --download-f2cblaslapack=1
> [0]PETSC ERROR: #1 MatDenseRestoreArray() line 1523 in /home/iitm/Downloads/petsc-3.5.2/src/mat/impls/dense/seq/dense.c
> [0]PETSC ERROR: #2 main() line 181 in /home/iitm/Desktop/project/8D.c
> 
> 
> Siddhesh M Godbole
> 
> 5th year Dual Degree,
> Civil Eng & Applied Mech.
> IIT Madras
> 
> On Wed, Dec 10, 2014 at 3:59 PM, siddhesh godbole <siddhesh4godbole at gmail.com> wrote:
> hello,
> 
> i was trying to modify ex99 in srs/mat/examples/test which deals with LAPACKsygvx_ for eigenvalues and eigenvectors 
> 
> it compiles but gives the following error while executing the program 
> 
> 
> 
> [0]PETSC ERROR:Cannot locate function MatDenseRestoreArray_C in object
> [0]PETSC ERROR: Configure options --download-mpich --download-f2cblaslapack=1
> [0]PETSC ERROR: #1 MatDenseRestoreArray() line 1523 in /home/iitm/Downloads/petsc-3.5.2/src/mat/impls/dense/seq/dense.c
> 
> can you please explain to me what are theses errors?
> 
> Siddhesh M Godbole
> 
> 5th year Dual Degree,
> Civil Eng & Applied Mech.
> IIT Madras
>