We've added "lo" back into the list, but I'm curious as to why 127.0.0.1/8 
doesn't work.

If you run ipconfig, what does it say for the localhost entry?  I.e., what's 
its IP address and netmask?


On Sep 9, 2012, at 1:27 PM, Siegmar Gross wrote:

> Hi Shiqing,
> 
> I disabled IPv6 in my network adpaters and activated the entry
> "127.0.0.1 localhost" in file c:\Windows\System32\drivers\etc\hosts
> to overwrite the IPv6 address for localhost in the registry.
> 
> 
> "ping localhost" displays the following output.
> 
> Ping wird ausgeführt für hermes [127.0.0.1] mit 32 Bytes Daten:
> Antwort von 127.0.0.1: Bytes=32 Zeit<1ms TTL=128
> ...
> 
> 
> Nevertheless I get the warning from "mpiexec" before the output of
> my program.
> 
> c:\...>mpiexec init_finalize.exe
> --------------------------------------------------------------------------
> WARNING: An invalid value was given for btl_tcp_if_exclude.  This
> value will be ignored.
> 
>  Local host: hermes
>  Value:      127.0.0.1/8
>  Message:    Did not find interface matching this subnet
> --------------------------------------------------------------------------
> 
> Hello!
> 
> 
> 
> I can avoid the warning with the following command line.
> 
> c:\...>mpiexec -mca btl_tcp_if_exclude lo init_finalize.exe
> 
> Hello!
> 
> 
> 
> c:\...>ompi_info --param btl tcp | \cygwin\bin\grep if_exclude
> Comma-delimited list of devices or CIDR notation of networks to use
>  for MPI communication (e.g., "eth0,eth1" or
>  "192.168.0.0/16,10.1.4.0/24").  Mutually exclusive with
>  btl_tcp_if_exclude.
>  MCA btl: parameter "btl_tcp_if_exclude" (current value:
>  <127.0.0.1/8,sppp>, data source: default value)
> 
> Perhaps it is necessary to add "lo" once more to the list to make
> Windows 7 happy.
> 
> 
> Kind regards
> 
> Siegmar
> 
> 
>>> The warning message is because the loopback adapter is excluded by 
>>> default, but this adapter is actually not installed on Windows.
>>> 
>>> One solution might be installing the loopback adapter on Windows. It 
>>> very easy, only a few minutes.
>> 
>> I have installed the loopback adapter but it has the wrong IP address
>> so that I still have the same warning message.
>> 
>> 
>> Ethernet-Adapter LAN-Verbindung 3:
>> 
>>   Verbindungsspezifisches DNS-Suffix:
>>   Beschreibung. . . . . . . . . . . : Microsoft Loopbackadapter
>>   Physikalische Adresse . . . . . . : 02-00-4C-4F-4F-50
>>   DHCP aktiviert. . . . . . . . . . : Ja
>>   Autokonfiguration aktiviert . . . : Ja
>>   Verbindungslokale IPv6-Adresse  . : fe80::25d7:866d:f5c9:7295%31(Bevorzugt)
>>   IPv4-Adresse (Auto. Konfiguration): 169.254.114.149(Bevorzugt)
>>   Subnetzmaske  . . . . . . . . . . : 255.255.0.0
>>   Standardgateway . . . . . . . . . :
>>   DHCPv6-IAID . . . . . . . . . . . : 671219788
>>   DHCPv6-Client-DUID. . . . . . . . : 
> 00-01-00-01-15-A4-69-BD-C0-F8-DA-35-64-02
>>   DNS-Server  . . . . . . . . . . . : fec0:0:0:ffff::1%1
>>                                       fec0:0:0:ffff::2%1
>>                                       fec0:0:0:ffff::3%1
>>   NetBIOS über TCP/IP . . . . . . . : Aktiviert
>> 
>> 
>> I tried to change the address to 127.0.0.1 without luck. When I switch
>> from "automatic" to "manual" in the properties menue and start the
>> IP address with 127 a window pops up announcing that an IP address
>> starting with 127 is reserved for the loopback adapter so that I couldn't
>> change the address. How did you manage to get the loopback adapter address
>> 127.0.0.1 or do you live with the message from Open MPI? Thank you very
>> much for a short answer in advance.
>> 
>> 
>> Kind regards
>> 
>> Siegmar
> 
> 
> _______________________________________________
> users mailing list
> us...@open-mpi.org
> http://www.open-mpi.org/mailman/listinfo.cgi/users


-- 
Jeff Squyres
jsquy...@cisco.com
For corporate legal information go to: 
http://www.cisco.com/web/about/doing_business/legal/cri/


Reply via email to