### zgeev question

Posted:

**Wed May 23, 2012 12:28 pm**- Code: Select all
`lapack_int info, lda, m, n;`

lapack_complex_double* h;

lapack_complex_double * w,* vr,* vl;

h = calloc(16*16,sizeof(lapack_complex_float));

vr = calloc(16*16, sizeof(lapack_complex_double));

vl = calloc(16*16, sizeof(lapack_complex_double));

w = calloc(16, sizeof(lapack_complex_double));

m = 16;

n = 16;

lda = 16;

/*

bunch of voodoo that fills h to be a 16x16 matrix with skewed symmetry

*/

info = LAPACKE_zgeev(LAPACK_ROW_MAJOR,'N','V', n, h, m, w, vl, lda, vr, lda); //find bug

Anytime I run this code I receive:

*** glibc detected *** ./test2: free(): invalid next size (normal): 0x0812b010 ***

+ a backtrace and a memory map

I'm almost positive that you have to preallocate things such as w, vl, and vr as anytime I comment that part out I get a seg-fault. I ran it with zgeev_work, and it would work so long as lwork = -1, anything else and I would receive the same error, but I would receive an output of everything being 0, which isn't true, so I've botched something.

Thanks in advanced, and sorry if I've left out something obvious/crucial

Evan

PS: completely new to LAPACK