[nuaa_bird]

hello guys，
Im new for SU2. When learning the tutorial 3 for Inviscid ONERA M6 in the website, I faced problems. here is my question:

I get SU2 from SU2-4.1.100-Windows-x64-Single-Threaded.exe
using python 2.7
MPICH2
os: windows 8.1

In Serial: entering "SU2_CFD inv_ONERAM6.cfg" at the command line
and entering "parallel_computation.py -f inv_ONERAM6.cfg -n 1" at the command line
I get the right results as the toturial;

In paralell: entering "parallel_computation.py -f inv_ONERAM6.cfg -n 6" at the command line, it prints 6 times every iter
I get right CL,CD and some other coefficients, while the wrong Surface_flow.dat(wrong mesh even).

It seems that it didnt compute in 6 cores or cut the wing into 6 parts, but compute it 6 times.
what is paralell tools, how to check them work well, how I get SU2_DDC(if it work for my question)?

someone help me please;thanks a lot.

[Haowang]

Originally Posted by nuaa_bird

hello guys，
Im new for SU2. When learning the tutorial 3 for Inviscid ONERA M6 in the website, I faced problems. here is my question:

I get SU2 from SU2-4.1.100-Windows-x64-Single-Threaded.exe
using python 2.7
MPICH2
os: windows 8.1

In Serial: entering "SU2_CFD inv_ONERAM6.cfg" at the command line
and entering "parallel_computation.py -f inv_ONERAM6.cfg -n 1" at the command line
I get the right results as the toturial;

In paralell: entering "parallel_computation.py -f inv_ONERAM6.cfg -n 6" at the command line, it prints 6 times every iter
I get right CL,CD and some other coefficients, while the wrong Surface_flow.dat(wrong mesh even).

It seems that it didnt compute in 6 cores or cut the wing into 6 parts, but compute it 6 times.
what is paralell tools, how to check them work well, how I get SU2_DDC(if it work for my question)?

someone help me please;thanks a lot.

Hi,
It's obvious that you didn't set the prallel environment properly. Please refer to this thread: Parallel execution of SU2
and:https://github.com/su2code/SU2/wiki/...ne-for-example
good luck!

[nuaa_bird]

thanks for your reply！
I re-compiled my su2_cfd with mpi and parmetis support, but here came new question,I ran with the command line in parallel, and it printed:
job aborted:
[ranks] message

[0] terminated

[1] process exited without calling finalize

-----error analysis--------

[1] on admin
D:\SU2\SU2_CFD ended prematurely and may have crashed. exit code 0xc0000005

--------error analysis-------
SU2 process was terminated by signal '3'

(ps: see my attachment for more info)

I checked source code, and found words, same with the error tips came out, "poor initial vertex distrabution. processor .. has no vertices as signed to it!" But I dont know why this. Maybe may parmetis has not cut the mesh? How to check parmetis work well?

any advice will be appreciated！
thanks！

[nuaa_bird]

Originally Posted by nuaa_bird

thanks for your reply！
I re-compiled my su2_cfd with mpi and parmetis support, but here came new question,I ran with the command line in parallel, and it printed:
job aborted:
[ranks] message

[0] terminated

[1] process exited without calling finalize

-----error analysis--------

[1] on admin
D:\SU2\SU2_CFD ended prematurely and may have crashed. exit code 0xc0000005

--------error analysis-------
SU2 process was terminated by signal '3'

(ps: see my attachment for more info)

I checked source code, and found words, same with the error tips came out, "poor initial vertex distrabution. processor .. has no vertices as signed to it!" But I dont know why this. Maybe may parmetis has not cut the mesh? How to check parmetis work well?

any advice will be appreciated！
thanks！

The problem has beening solved...

It appears that my metis was compiled in a wrong way(there ara something wrong with the sln get from cmake(VS2010 compiler) do not work), so I recompiled metis from source using VS 2010. Fortunately, the parallel_compute.py work well after that!

hope this can help someone else!