[Combas]

Hello,

I spent hours to try to perform the tutorial case "inviscid onera m6" in parallel but it does not work. My problem comes from the fact that whatever the number of cores used, the time per iteration remains roughly the same. In fact, when I ask a computation on 4 cores, all the cores do the same thing: the 4 cores are used, and the memory used by each core is the same as if I did a serial computation (so it seems that the entire mesh is sent to each core)

I work with Ubuntu 12.0.4, with SU2 2.0.8.
I tried open mpi 1.5 and mpich2 (it gave the same thing), and for metis I tried versions 4.0.3 and 5.1.0 (this last version does not seem compatible with SU2 since I got an error during the SU2 compilation)

I used the python command: "parallel_computation.py -f inv_ONERAM6.cfg -p 4"
I tried also to run SU2_DDC adding the parameter "NUMBER_PART = 4" and "VISUALIZE_PART= YES" to the config file, but it does nothing (and the parameter "NUMBER_PART" is not recognized)

I put in attachment 2 files:
- what displays the SU2_CFD code when it is launched on 4 cores with "parallel_computation.py"
- what displays the SU2_DDC code when it is launched with "NUMBER_PART = 4"

It looks like more a problem of mesh partition than a problem of parallel computation, but I'm stuck and I don't know what to do...

If anyone has an idea, I am interested!
Thank you in advance
Laurent