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
