I opened the hosts file by using Vi and changed "localhost" to " hirakjyoti---- " and then saved it and closed and then rebooted the PC. But even after that the problem persists. On Tue, 5 Jan 2021 at 10:04, Hirakjyoti Sarma <[email protected]> wrote:

Its 3.3.2-build1

On Tue, 5 Jan 2021 at 02:40, Zhou, Hui <[email protected]> wrote:

...

Hi Hirakjyoti Sarma,

Could you identify the MPICH version?

-- Hui Zhou

*From: *Hirakjyoti Sarma via discuss <[email protected]> *Date: *Monday, January 4, 2021 at 10:59 AM *To: *[email protected] <[email protected]> *Cc: *Hirakjyoti Sarma <[email protected]> *Subject: *[mpich-discuss] [discuss-mpich]Error while using mpirun

Dear all,

I get the following error while running LAMMPS on ubuntu *without an internet connection.*

*Invalid error code (-2) (error ring index 127 invalid) Invalid error code (-2) (error ring index 127 invalid) INTERNAL ERROR: invalid error code fffffffe (Ring Index out of range) in MPID_nem_tcp_init:373 Fatal error in PMPI_Init: Other MPI error, error stack: MPIR_Init_thread(586)..............: MPID_Init(224).....................: channel initialization failed MPIDI_CH3_Init(105)................: MPID_nem_init(324).................: MPID_nem_tcp_init(175).............: MPID_nem_tcp_get_business_card(401): MPID_nem_tcp_init(373).............: gethostbyname failed, hirakjyoti-HP-dx2480-MT-KL969AV (errno 0)*

But if the PC is connected to internet LAMMPS successfully run.

How can i solve the problem?

Regards,

Hirak