[babala]

Hello,
I am running a test on a Redhat server.I plan to run the test with two nodes(every node has 8 CPUs). We can name the two nodes as node1 and node2.
I use the commond as userguide:

mpirun -hostfile machine -np 16 rhoCentralFoam -parallel

The file of machine is like this:
node1
node2

However, the terminal gives me a error information follows:

--------------------------------------------------------------------------
Open RTE detected a parse error in the hostfile:
machine
It occured on line number 3 on token 1.
--------------------------------------------------------------------------
[c2-8:27938] [[27546,0],0] ORTE_ERROR_LOG: Error in file base/ras_base_allocate.c at line 222
[c2-8:27938] [[27546,0],0] ORTE_ERROR_LOG: Error in file base/plm_base_launch_support.c at line 99
[c2-8:27938] [[27546,0],0] ORTE_ERROR_LOG: Error in file plm_rsh_module.c at line 1173

Then, I just use one node, And I modify the file of machine as this:

node1

And input the commond
mpirun -hostfile machine -np 8 rhoCentralFoam -parallel

the solver can work successifully.
And the other node is OK,too.I don't know how to solve this problem.

Any answers is appreciated.

best regards
Zhiyuan Li

[wyldckat]

Greetings Zhiyuan Li and welcome to the forum!

Quick answer - follow these instructions: 7. How do I run a simple SPMD MPI job?

Long answer - check this blog post with a lot of links that can help with several topics regarding running in parallel: Notes about running OpenFOAM in parallel

Best regards,
Bruno

[babala]

Originally Posted by wyldckat

Greetings Zhiyuan Li and welcome to the forum!

Quick answer - follow these instructions: 7. How do I run a simple SPMD MPI job?

Long answer - check this blog post with a lot of links that can help with several topics regarding running in parallel: Notes about running OpenFOAM in parallel

Best regards,
Bruno

hello, Bruno.
Thank you for your replies.
I have solved the problems. I created the file of machine.txt in Windows system and editted it in Windows system,too.And, Linux system can't identify contents of the file.Then I editted the file by vim and the solver can run in parallel perfectly.
The mistake is so stupid.Hope somebody else won't make the same mistake.

Best regards
Zhiyuan

[S_teph_2000]

Hello,

I am running Openfoam in windows 10 Linux (Ubuntu).
I would like to know if it's possible to use distributed parallel with another windows host? are there any examples?

thanks in advance.

Kazu

[S_teph_2000]

Hello,

No answer? I tried running icoFoam with the cavity tutorial in distributed parallel, using two machines with WSL installed. I get a "***Usage Warning***" message, and then everything is hanging: no sign of calculation or data transfer. am I doing something wrong, or distributed parallel with WSL is simply impossible????
Help someone!!


Kazu