Run FDS with intel-mpi on two window 10 laptops

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cunco...@gmail.com

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Mar 22, 2021, 5:57:20 AM3/22/21
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Hi everyone!

I've recently tried to configure my two window laptops to run a FDS parallel calcul. However, my setting was failed even with the test_mpi.

my setting is as below :

+ i've installes FDS 6.7.5 on both laptops.
+ My 2 laptop are on window 10 home edition.
+ I run mpiexec from the FdsCMD windows
+ I've checked that my two latops see each other on my home network with ping. I've given access permission for them  (That means i can login to the second from the first laptop on my network with my account and vice versa).
+ 2 latops are on the same network group (private mode)

the mpiexec successfully runs locally on any laptop with fds_local.

when i run the mpi test case with my host file from any of the two laptops : i've always this error : credential rejected. My command is : mpiexec -f hostfile.txt -n 2 -ppn 1 test_mpi.

I've read some disccussions on the forum and tried to remove ans register my credential with mpiexec. Although the mpiexec -validate return SUCCESS, i've always the same error.

I've trie to change my accout :

+ if i use the same microsoft account on both of 2 laptops : they don't see each other.
+ if i use two diffrent account : one with microsoft and one with local account : they see each other but the credential is alwalys rejected.: server rejected credentials;  error launching bstrap proxy.

In the user guide, i've noticed that we have to setting a domain network to run mpiexec in multi machines. I this the root of my problem : i only have two laptops on a private workgroup.

Any idea are more than welcome. Thanks in advance!  

   

          

Kevin

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Mar 22, 2021, 12:30:03 PM3/22/21
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Even when the network is a properly configured "Windows Domain Network", it is still tricky to get FDS to work across a collection of Windows computers. There are all sorts of firewall security features, plus the MPI communicators rely on various libraries, ports, communications channels, etc, that are part of a network. This is why linux clusters were invented for dedicated high performance computing. Windows/DOS was not.
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