[petsc-users] MatDenseRestoreArray run time error

[siddhesh godbole]

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
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