Learning Forum

[Sanket Bohora]

I am trying to set up distributed computing on two PCs running windows however I get errors saying the server rejected credientials. I have checked that the hydra service is running in both computers and the local computer has set it user name and password using mpiexec -register and mpiexec -validate.

Is there any way to debugg the issue? I have tried disabling the firewall on the computer that the local computer is trying to connect to however I got the same error. 

 

[Lito]

@Sanket Bohora, 

1. The username and password you used to register with mpiexec are the ones you used when you logged in to the computer as prompted by Windows and should be the same on all machines that run the simulation.  
2. Try to temporarily disable the Windows firewall on the machines running the simulation. Or allow Intel MPI to access both machines. 

 

 

 

[Sanket Bohora]

Hi I tried your suggestions however I am not sure if I did it correctly. I am getting the error shown in the image above now.

[Lito]

@Sanket Bohora, 

Have you tried running the simulation on the remote host/machine (qlinlabserver) while you are directly logged into the machine? Ensure that you can run the simulation from both machine while logged into them directly - as "localhost" in the Resources when logged into each machine. 

Indicate the hostnames of the machines used in the resources. Make sure you have read/write access to the location/folder indicated by your MPI options/arguments. Try using "C:\" as your "APPDATA" - as shown in the image below.