[petsc-users] eps eigenvectors error

[siddhesh godbole]

hello

i am trying to retrieve the solution after EPSSolve but i am unable to get
the eigenvectors when i call EPSGetEigenpair or EPSGetEigenvector

i am getting following error

[0]PETSC ERROR: --------------------- Error Message
--------------------------------------------------------------
[0]PETSC ERROR: Null argument, when expecting valid pointer
[0]PETSC ERROR: Null Object: Parameter # 3
[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: ./eps13D on a arch-linux2-c-debug named iitm by iitm Wed
Apr  8 10:04:57 2015
[0]PETSC ERROR: Configure options --download-mpich
--download-f2cblaslapack=1
[0]PETSC ERROR: #1 EPSGetEigenvector() line 488 in
/home/iitm/Downloads/slepc-3.5.2/src/eps/interface/epssolve.c
[0]PETSC ERROR: #2 main() line 266 in /home/iitm/Desktop/project/eps13D.c
[0]PETSC ERROR: ----------------End of Error Message -------send entire
error message to petsc-maint at mcs.anl.gov----------


what could be the reason?



sincerely

*Siddhesh M Godbole*

5th year Dual Degree,
Civil Eng & Applied Mech.
IIT Madras
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