[mpich-discuss] how to run jobs using IPv6?

[Shuwei Zhao]

Hi Yanfei，
I ask this question months ago，but I was told IPv6 is supported in mpich
3.*. So it's not supported?

Thanks
Shuwei

On Wed, 6 Dec 2017 at 11:24 Guo, Yanfei <yguo at anl.gov> wrote:

> Hi Carlos,
>
> MPICH currently uses gethostbyname which does not support IPv6, therefore
> it won’t work on a pure IPv6 network.
>
> Best,
>
> Yanfei Guo
> Assistant Computer Scientist
> MCS Division, ANL
>
>
>
> On 11/22/17, 2:23 PM, "Carlos" <carlos at inf.ufpr.br> wrote:
>
> Is it possible to use mpich (3.3) with IPv6-only? We tried it here and got
>
> Fatal error in MPI_Init: Other MPI error, error stack:
> MPIR_Init_thread(506)..............:
> MPID_Init(211).....................: channel initialization failed
> MPIDI_CH3_Init(89).................:
> MPID_nem_init(324).................:
> MPID_nem_tcp_init(178).............:
> MPID_nem_tcp_get_business_card(425):
> ckpt_restart(384)..................: gethostbyname failed, zuratkul (errno
> 4)
>                                      *************
>
> This shows that mpich doesn't run without IPv4, which is our case... Is
> there a
> way to make it work in this situation?
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