[SOLVED] magma_dsyevd wrong optimal WORK array size ?

[ReL]

Hello,

When using magma_dsyevd_gpu I run into errors if I use the optimal WORK array size computed by the function in query mode.

If I increase the array size of N elements, it seems to fix the issue. I would guess that the function isn't returning the correct optimal size for workspace.

Rémi

[Stan Tomov]

Remi,
Thanks. We fixed it. The return value should be 1 + 6*N + 2*N**2 for large N (when eigenvectors are required) and for N < nb it should be 1 + 6*N + N**2 + N*nb.
Stan

[ReL]

Thanks for the fast answer!