LAPACK/ScaLAPACK Development

Hi,
Can anyone please provide some advice on how to deal with a run-time error from a lapack function (used to calculate eigen values). The codes can be compiled but I got the following run-time error:
MKL ERROR: Parameter 5 was incorrect on entry to DSYEV

Some background information:
1. I'm trying to use dsyev_ function for calculating eigenvalue/vectors by doing the following:
dsyev_("V","U", &n, &mat[0][0], &lda, &vec[0], work, &lwork, &info);
2. Environment is Linux and this is my LIB_DIRS:
LIB_DIRS = -L/xenv/ICC/X/11.0_081/mkl/lib/em64t /xenv/ICC/X/11.0_081/mkl/lib/em64t/libmkl_solver_ilp 64_sequential.a -Wl,--start-group /xenv/ICC/X/11.0_081/mkl/lib/em64t/libmkl_intel_ilp64.a /xenv/ICC/X /11.0_081/mkl/lib/em64t/libmkl_sequential.a /xenv/ICC/X/11.0_081/mkl/lib/em64t/libmkl_core.a -Wl,--end-group -lpthread -llapack
I have been struggling with this error for a long time, can someone please let me know what might be causing this?
Any information will be highly appreciated.
Thanks,

Hi,

the run time error tells you what is wrong, parameter 5 is incorrect.
Check the description in http://www.netlib.org/lapack/double/dsyev.f or some other documentation.

In this case lda was not large enough.
If A is NxN then lda needs to be at least N. If you stored A as a contigous 1-dim array, then lda=N.

/Jörgen