### vl and vu DSYGVDX_2STAGE

Posted:

**Fri May 17, 2019 2:30 am**I'm using Fortran as the programming language of a software which requires to diagonalize a matrix. I've already implemented a function which makes use of

When trying to implement

Can you give me a really simple example of the implementation of magma_dsygvdx_2stage using Fortran?

*magma_dsygvd_m*. However, it is not as fast as I would have expected and I would like a speedup.When trying to implement

*magma_dsygvdx_2stage*, I'm not sure what do the inputs "vl" and "vu" mean, since they're not used in magma_dsygvd_m. I read the documentation but it is still not clear for me.Can you give me a really simple example of the implementation of magma_dsygvdx_2stage using Fortran?