[Opm] Parallel OPM flow simulation

[Atgeirr Rasmussen]

Dear Kang,

If you follow the instructions for Mac OS X on this page:

http://opm-project.org/?page_id=239

you should be able to build with MPI, although it has not been tested with the latest version of macOS. However, you will then only get a very basic partitioning scheme. To get a good partitioning, which is necessary for reasonable parallel performance, you must also install the Zoltan library, and we have struggled a bit with that, also on Linux in fact (it is not trivial to get right)! To help with this, on Ubuntu we do provide binary packages for this library in the OPM ppa. The easiest way to experiment with MPI and Flow right now is therefore to use an Ubuntu VM.

Atgeirr


7. aug. 2017 kl. 23.06 skrev Kangqiao Hu <kangqiaohu at gmail.com<mailto:kangqiaohu at gmail.com>>:

Hi Alf,

Thanks for clarifying. Then I might simply give up multi-thread on macOS for the moment.

Regards
Kang

From: Alf Birger Rustad <abir at statoil.com<mailto:abir at statoil.com>>
Date: Monday, August 7, 2017 at 5:00 PM
To: Kangqiao Hu <kangqiaohu at gmail.com<mailto:kangqiaohu at gmail.com>>, "Opm at opm-project.org<mailto:Opm at opm-project.org>" <Opm at opm-project.org<mailto:Opm at opm-project.org>>
Subject: SV: Parallel OPM flow simulation

Hi again,

My apologies, I was unaware of Apple's renaming. OSX will probably give you the exact same challenges as the current macOS. Basically we do not support MPI on Macs. We are still working on simplifying the compilation of MPI binaries on Linux, so it may be a rocky ride to try it on a Mac.

Sorry,
Alf
________________________________
Fra: Kangqiao Hu <kangqiaohu at gmail.com<mailto:kangqiaohu at gmail.com>>
Sendt: 7. august 2017 22:42:14
Til: Alf Birger Rustad; Opm at opm-project.org<mailto:Opm at opm-project.org>
Emne: Re: Parallel OPM flow simulation

Thanks Alf for quick reply. Let me try the same in OSX. Thanks.

Regards
Kang

From: Alf Birger Rustad <abir at statoil.com<mailto:abir at statoil.com>>
Date: Monday, August 7, 2017 at 4:00 PM
To: Kangqiao Hu <kangqiaohu at gmail.com<mailto:kangqiaohu at gmail.com>>, "Opm at opm-project.org<mailto:Opm at opm-project.org>" <Opm at opm-project.org<mailto:Opm at opm-project.org>>
Subject: SV: Parallel OPM flow simulation

Hi Kang,

On OSX I am afraid you are on your own when it comes to MPI. On supported Linux distributions we have MPI enabled binaries packaged, and it is invoked in the standard way with mpirun.

Cheers,
Alf
________________________________
Fra: Opm <opm-bounces at opm-project.org<mailto:opm-bounces at opm-project.org>> på vegne av Kangqiao Hu <kangqiaohu at gmail.com<mailto:kangqiaohu at gmail.com>>
Sendt: 7. august 2017 19:45:19
Til: Opm at opm-project.org<mailto:Opm at opm-project.org>
Emne: [Opm] Parallel OPM flow simulation

Hi Everyone,

I am new to OPM and just had a successful build from source codes on Mac. I was trying to run SPE10 model2 with flow_legacy, and I found that it only utilized one core. I was wondering if there is a parallel option that I can make use all of the available cores? Thanks.

Regards
Kang


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