[Pw_forum] WARNING: info= 18 for Hessian

[Manoj Narayanan]

Dear PWSCF users,

In one of my relax calculations I got the following warning:-


*WARNING: info= 18 for Hessian*
I tried to find some thing from previous postings and nothing was
available. My system is a strained metal mono layer, which is quite
unphysical. It will be really helpful for me if somebody could shed some
light in this issue, like why this coming and how grave is this warning for
further relaxation steps.

Thanking in Advance
Manoj N H
JNTU
India
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