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TOPIC: Parallelization of v6p3 with auto-installer

Parallelization of v6p3 with auto-installer 10 years 11 months ago #11181

  • jmhervouet
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Hello,

This is normal in coupling, the calling program (here Telemac-2D) has priority and its number of processors is retained. In your case you have then 3 processors and it seems to work, at least there is nothing wrong in the part of the listing shown.

Regards,

Jean-Michel Hervouet
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Parallelization of v6p3 with auto-installer 10 years 11 months ago #11186

  • HOLINGER
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I've entered 3 processors in the steering file (.cas). And indeed, there are 3 sub-parts of the mesh generated.
Therefore, partel (program for the segmentation of the model) does its work.

However, the task manager only shows 1 cpu/thread in use (normally it should show that 3 cpu's are working) and it is clearly written that the value "1" has been kept. So for me it doesn't work as it should.
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Parallelization of v6p3 with auto-installer 10 years 11 months ago #11188

  • jmhervouet
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Hello,

Just look if the computation goes to the end, and if you have a speed-up compared with 1 processor. The listing says that the value 3 is kept. Then if the 3 jobs are given to the same processor, I don't know, it never happens on my machine.

Regards,

Jean-Michel Hervouet
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Parallelization of v6p3 with auto-installer 10 years 11 months ago #11191

  • HOLINGER
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But it actually says that the value 1 is kept. Or do I read it wrongly?

Anyway, the 3 jobs should be given to 3 processors, not just one.
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Parallelization of v6p3 with auto-installer 10 years 11 months ago #11195

  • sebourban
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Hello,

very strange -- you seem to have trouble running TELEMAC but are already looking at the Fortran source code to see if there is a problem with it ... it is a good thing :cheer: but we should probably sort out your use of TELEMAC first ... :S

So just to confirm: you should not double click on the executable. Launching the command as you did should run TELEMAC and complete the simulation, and eventually delete the temporary directory (unless you use the -t or -w options). Also, double-clicking on the executable cannot work in parallel, rather mpiexec as to be launch with your executable (out_...exe) as one of the arguments. But again, the system should take care of all this by just typing the command mentioned in my previous post.

Good luck.
Sébastien
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Parallelization of v6p3 with auto-installer 10 years 11 months ago #11204

  • HOLINGER
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I entered your command in cmd. But I have to indicate the whole folder structure, without that he doesn't find the files. And I have to run it from the python27 folder with the tag "python" first. I don't know, maybe the installation is not correct. (Previously I have started another thread in the forum on how to run telemac2d on windows 7. And there I got the advices on how to start telemac.)

python C:\opentelemac-mascaret\v6p3\scripts\python27\telemac2d.py -s -f C:\opentelemac-mascaret\v6p3\configs\systel.parallel.cfg C:\opentelemac-mascaret\v6p3\examples\telemac2d\break\t2d_break.cas

Now, after this, the programme just stops and generates this aforementioned executable. So, I don't know.
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