Hi, Did you try, "c:\Program Files (x86)\MPICH2\bin\mpiexec.exe" -n 1 nonmem.exe "c:\Program Files (x86)\MPICH2\bin\mpiexec.exe" -n 2 "c:\Program Files (x86)\MPICH2\examples\cpi.exe" Regards, Jayesh ----- Original Message ----- From: "Costas Yamin" <[email protected]> To: [email protected] Sent: Thursday, June 27, 2013 10:16:02 AM Subject: Re: [mpich-discuss] mpich2 and windows server 2012 Hi, I have installed mpich2 on a Windows 2012 Essentials server machine and I have successfully sent jobs to it remotely without doing anything different than in my own workstation (Windows8 x64). I have configured mpiexec to use particular ports and added the relevant rule in windows firewall. So there shouldn't be any compatibility issues arising from the OS itself... I assume you installed mpich2 as an Administrator. Costas On 27/6/2013 10:59 πμ, Lars Lindbom wrote: Hi, I have a problem getting mpich2 to run on Windows Server 2012. We have a small set of servers successfully configured and running Windows Server 2008 R2 and MPICH2 without any problem. The error I get seems to indicate a problem in the authentication process.

"c:\Program Files (x86)\MPICH2\bin\mpiexec.exe" –validate

SUCCESS

"c:\Program Files (x86)\MPICH2\bin\mpiexec.exe" -host localhost nonmem.exe

Credentials for Lars rejected connecting to localhost Aborting: Unable to connect to localhost The credentials are correct and I have tried multiple user accounts with the same result. I don't think it's related but for what it's worth I have made sure that I have the same firewall settings for the mpich executables as on the 2008 R2 servers. I would appreciate any help in getting this solved. Thanks, Lars _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss