[Opm] API for flow

[Atgeirr Rasmussen]

Hi Joakim,

There is no function like runScheduleADI(). Adjoints are not yet supported, but we have committed to adding such support.

Perhaps we should have a short video meeting to discuss these things? If so, please send me an off-list email (anyone else who would like to join the discussion is welcome, please email me).

Atgeirr



28. jun. 2017 kl. 15.36 skrev Joakim R. Andersen <joakira at stud.ntnu.no<mailto:joakira at stud.ntnu.no>>:

Dear Atgeirr and Alf,

  Thanks for your quick response.

  If you are familiar with MRST I would like to have access to a function similar to runScheduleADI.  Further, if possible I would like to have access or to build adjoint variables for the simulation, however I'm aware that this last functionality is not implemented yet.

   At the moment I would like to implement an interface to the fully-implicit simulators that given the initial states of the reservoir (pressure, saturations, rs, rv) provides the intermediate states for all the actual simulated timesteps (not only report steps) together with their Jacobians at convergence.

    In addition to that, I will need to build the Jacobians of the implicit steps with respect to the initial conditions and well controls settings to implement gradient-based optimization methods.  I am not sure if these are readily available and not interfaced or if I have to figure out how to build them.


- Joakim


2017-06-28 4:56 GMT-03:00 Atgeirr Rasmussen <Atgeirr.Rasmussen at sintef.no<mailto:Atgeirr.Rasmussen at sintef.no>>:

28. jun. 2017 kl. 09.32 skrev Alf Birger Rustad <abir at statoil.com<mailto:abir at statoil.com>>:

Hi Joakim,

There is currently no library, we have basically viewed ourselves as downstream. Still, the code that makes up the application flow is modular. We have gone through great lengths to make the various parts reusable, so to what extent you can use it for your tasks really depends on your needs.

To customize the simulator code currently you may have to go somewhat deep into it. It is not necessarily hard, but it can be difficult to find the right place to modify. If you would like to share a little about what you want to accomplish, we could point you in the right direction! In the long term, I'd like to see a higher-level API that is well-suited to scripting, but we do not have that at the moment.

Atgeirr



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