[mpich-discuss] Error while connecting to host

[Kai Zhong]

Hi,


I have an computer with Core i5 CPU and 4 GB of RAM, running the MS win7 64-bit operating system. I am trying to run 'cpi.exe' in the folder 'examples' after I install 'mpich2-1.3.2p1-win-x86-64.exe'. If I just type 'cpi' in the cmd, the program run normally. And at 'Windows Task Manager',I see only one of four CPUs are occupied fully. Then I type 'mpiexec -n 2 cpi', 'mpiexec.exe -n 1  -noprompt cpi.exe' and so on. it comes out the same error message:

Error while connecting to host.  No connection could be made because the target machine actively refused it.  (10061)
Connect on sock (host=Owner-PC, port=8676) failed, exhaused all end points
Unable to connect to 'Owner-PC:8676', sock error:  Error = -1

I am the administrator on this computer, and I am not trying to connect to another machine, to my knowledge. Besides, the firewall is disabled.
I think maybe I mixed MSMPI and MPICH2, but I don't find the folder 'Microsoft Compute Cluster Packany', which I think the MSMPI should be, at "C:\Program Files" or "C:\Program Files(*86)". 
So, what am I doing wrong?

Any help to solve this error is highly appreciated.


Best regards,

Kai



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