Python bindings and OpenFOAM-1.5-dev

francois · July 4, 2009, 09:35

Hi all,

Any news on the python bindings for the library (to the level of physics solvers) on the OpenFOAM-1.5-dev branch ?

It could be an awesome feature/enhancement for users and for teaching purpose regarding the readability and easiness of python.

Thanks
Have a nice day.

francois · February 5, 2010, 15:24

up ...
Thanks

bastil · February 5, 2010, 16:09

Quote:

Originally Posted by francois

up ...
Thanks

What does this mean? Is this feature available? I am also very interested in this. Thanks.

Regards

egp · February 6, 2010, 06:40

Hrv Jasak has shown some examples/demonstrations where OpenFOAM libraries have been wrapped in SWIG. OF objects can then be loaded from a python shell or script. With ipython/scipy/numpy/OpenFOAMpy, you would have a very cool and powerful tool.

Since we haven't heard anything about it here no the forum, my guess is that it is still in the experimental stage.

hjasak · February 7, 2010, 04:40

First, credit to Ivor who did a ton of work on this - much appreciated.

This is actually ready for release, but the delay is due to other related things that should go in. The biggest being, of course the Windows port, CMake and a set of new features.

I know the release of all the lovely new features is now disgracefully late (my fault), but (if it makes you feel better) this is now Priority #1 on my desk. I will keep you posted - python bindings are definitely ready.

If you wish to have a go, there is an experimental repository somewhere about...

Hrv

philippose · February 7, 2010, 05:42

Hello Hrv,

A Good Morning to you! Nice to see you active on the forum again :-)!

Your last post on this thread has made me very curious.... does this imply, that a native Windows port of OpenFOAM-1.xx-dev is basically almost ready for use?

This would be very exciting news for a lot of people including me :-)!

As usual.... if you would like someone to test-ride the port, I would be glad to offer my help!

Have a nice Sunday!

Philippose

francois · February 9, 2010, 10:32

Thanks Hrv.

That's a excellent news.

Congratulations to you and Ivor for your awesome works !
Francois

Niklas2 · February 10, 2010, 16:51

Quote:

Originally Posted by hjasak

First, credit to Ivor who did a ton of work on this - much appreciated.
...
If you wish to have a go, there is an experimental repository somewhere about...

Hrv

Is the experimental repository about the python bindings or about the windows port?
I can't seem to find python bindings in any openfoam-extend branches (only pyfoam).
Can somebody help to find them "somewhere"?

Thanks
Niklas

hjasak · February 11, 2010, 18:48

Python. The Windows work is still restricted.

Niklas2 · February 13, 2010, 09:18

I understand. The python work is so amazing that their download location is kept secret.
Maybe www.fenics.org is the better choice.

Greetingz
Niklas

hjasak · February 13, 2010, 12:56

Cocky boy... but mis-directed.

Yes, I think the python work is amazing and it will have an impact to my work similar to a rutting rhinoceros

The work has been going on for more than 2 years now, and I have shown some of it at the Workshop in Milan.

Now, to problems: there is at least 4 people who need to claim credit for this work (including myself). Some of them work for companies which invest heavily into their FOAM capability and it is necessary to encourage them in the best possible way to release the results of their effort (in their own time and their own way). At the end of the day, these people are being paid real money to do this work.

Furthermore, this needs to be done Right: if the release is half-baked or not easy to use, people will just say "garbage" and never look at it again. I wouldn't want that to happen - it would be unfair to us all.

So, while I understand your eagerness and enthusiasm, please allow some leeway for the release to be agreed upon and the details to be worked out properly. In the meantime, you can always try to do your own...

Good weekend,

Hrv

alberto · March 29, 2010, 16:41

Great news. But what is the logic behind choosing cmake? Will it replace wmake?

kev4573 · March 30, 2010, 13:19

CMake really is a great build system - helps a lot doing cross-compiles (hence the name). That would be my guess.

alberto · March 30, 2010, 15:36

Quote:

Originally Posted by kev4573

CMake really is a great build system - helps a lot doing cross-compiles (hence the name). That would be my guess.

Well, yes. But cmake can be a pain too

I was asking if it will live side by side with wmake, or replace it, because wmake is actually what I think makes OF easy to manage also for unexperienced users.

Best,

kev4573 · March 30, 2010, 17:05

Quote:

Originally Posted by alberto

Well, yes. But cmake can be a pain too

Best,

Hehe, agreed. However, it would be incredibly useful to be able to do development in a real IDE like Eclipse though, so I definitely endorse a switch to cmake.

alberto · March 30, 2010, 17:17

You can use Eclipse with wmake too. I do that :-)

kev4573 · March 31, 2010, 16:20

Well that's cool - I'd be interested to hear how you got that setup. As far as I know eclipse has no plugin support for wmake, so I would guess it was a custom setup. This thread is probably not the right place to discuss this at length, but I'd be interested if you started a thread somewhere on how to get this setup, or can otherwise point me in the right direction. My arguement for cmake is really that it already has targets for many IDEs, and once you're working in a real IDE, I've found it is much easier to learn a code base and develop new code.

alberto · March 31, 2010, 16:54

Quote:

Originally Posted by kev4573

Well that's cool - I'd be interested to hear how you got that setup. As far as I know eclipse has no plugin support for wmake, so I would guess it was a custom setup. This thread is probably not the right place to discuss this at length, but I'd be interested if you started a thread somewhere on how to get this setup, or can otherwise point me in the right direction. My arguement for cmake is really that it already has targets for many IDEs, and once you're working in a real IDE, I've found it is much easier to learn a code base and develop new code.

You still have to build your "files" and "options" files by hand in my setup, but you can take advantage of Eclipse editor, code completion, warning/errors, ...

In short, the steps (Credit goes to Holger Marschall, errors are mine, since I'm summarizing

) are:

Import your project (point to the solver top directory when in Files -> New -> C++ project, remove the check from "Use default location").
Edit the compiler properties so that under C/C++ build you replace the default build command with wmake. Deselect "Generate makefiles automatically" and set the build directory.
Deactivate Project -> Automatically build
Use "Make target" tab to add two targets, one for wmake and the other for wclean, pointing to the "Make" directory of your code.

Best,

February 7, 2010, 04:40		#5
hjasak Senior Member Hrvoje Jasak Join Date: Mar 2009 Location: London, England Posts: 1,905 Rep Power: 33	First, credit to Ivor who did a ton of work on this - much appreciated. This is actually ready for release, but the delay is due to other related things that should go in. The biggest being, of course the Windows port, CMake and a set of new features. I know the release of all the lovely new features is now disgracefully late (my fault), but (if it makes you feel better) this is now Priority #1 on my desk. I will keep you posted - python bindings are definitely ready. If you wish to have a go, there is an experimental repository somewhere about... Hrv __________________ Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk

February 11, 2010, 18:48		#9
hjasak Senior Member Hrvoje Jasak Join Date: Mar 2009 Location: London, England Posts: 1,905 Rep Power: 33	Python. The Windows work is still restricted. __________________ Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk

February 13, 2010, 12:56		#11
hjasak Senior Member Hrvoje Jasak Join Date: Mar 2009 Location: London, England Posts: 1,905 Rep Power: 33	Cocky boy... but mis-directed. Yes, I think the python work is amazing and it will have an impact to my work similar to a rutting rhinoceros The work has been going on for more than 2 years now, and I have shown some of it at the Workshop in Milan. Now, to problems: there is at least 4 people who need to claim credit for this work (including myself). Some of them work for companies which invest heavily into their FOAM capability and it is necessary to encourage them in the best possible way to release the results of their effort (in their own time and their own way). At the end of the day, these people are being paid real money to do this work. Furthermore, this needs to be done Right: if the release is half-baked or not easy to use, people will just say "garbage" and never look at it again. I wouldn't want that to happen - it would be unfair to us all. So, while I understand your eagerness and enthusiasm, please allow some leeway for the release to be agreed upon and the details to be worked out properly. In the meantime, you can always try to do your own... Good weekend, Hrv __________________ Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk Last edited by hjasak; February 13, 2010 at 16:06. Reason: Poor english

March 29, 2010, 16:41		#12
alberto Senior Member Alberto Passalacqua Join Date: Mar 2009 Location: Ames, Iowa, United States Posts: 1,912 Rep Power: 36	Great news. But what is the logic behind choosing cmake? Will it replace wmake? __________________ Alberto Passalacqua GeekoCFD - A free distribution based on openSUSE 64 bit with CFD tools, including OpenFOAM. Available as in both physical and virtual formats (current status: http://albertopassalacqua.com/?p=1541) OpenQBMM - An open-source implementation of quadrature-based moment methods. To obtain more accurate answers, please specify the version of OpenFOAM you are using.

March 30, 2010, 17:17		#16
alberto Senior Member Alberto Passalacqua Join Date: Mar 2009 Location: Ames, Iowa, United States Posts: 1,912 Rep Power: 36	You can use Eclipse with wmake too. I do that :-) __________________ Alberto Passalacqua GeekoCFD - A free distribution based on openSUSE 64 bit with CFD tools, including OpenFOAM. Available as in both physical and virtual formats (current status: http://albertopassalacqua.com/?p=1541) OpenQBMM - An open-source implementation of quadrature-based moment methods. To obtain more accurate answers, please specify the version of OpenFOAM you are using.

July 4, 2009, 09:35	Python bindings and OpenFOAM-1.5-dev	#1
francois Senior Member Francois Beaubert Join Date: Mar 2009 Location: Lille, France Posts: 147 Rep Power: 17	Hi all, Any news on the python bindings for the library (to the level of physics solvers) on the OpenFOAM-1.5-dev branch ? It could be an awesome feature/enhancement for users and for teaching purpose regarding the readability and easiness of python. Thanks Have a nice day.

February 5, 2010, 15:24		#2
francois Senior Member Francois Beaubert Join Date: Mar 2009 Location: Lille, France Posts: 147 Rep Power: 17	up ... Thanks

February 6, 2010, 06:40		#4
egp Senior Member Eric Paterson Join Date: Mar 2009 Location: Blacksburg, VA Posts: 197 Blog Entries: 1 Rep Power: 18	Hrv Jasak has shown some examples/demonstrations where OpenFOAM libraries have been wrapped in SWIG. OF objects can then be loaded from a python shell or script. With ipython/scipy/numpy/OpenFOAMpy, you would have a very cool and powerful tool. Since we haven't heard anything about it here no the forum, my guess is that it is still in the experimental stage.

February 7, 2010, 05:42		#6
philippose Senior Member Philippose Rajan Join Date: Mar 2009 Location: Germany Posts: 552 Rep Power: 25	Hello Hrv, A Good Morning to you! Nice to see you active on the forum again :-)! Your last post on this thread has made me very curious.... does this imply, that a native Windows port of OpenFOAM-1.xx-dev is basically almost ready for use? This would be very exciting news for a lot of people including me :-)! As usual.... if you would like someone to test-ride the port, I would be glad to offer my help! Have a nice Sunday! Philippose

February 9, 2010, 10:32		#7
francois Senior Member Francois Beaubert Join Date: Mar 2009 Location: Lille, France Posts: 147 Rep Power: 17	Thanks Hrv. That's a excellent news. Congratulations to you and Ivor for your awesome works ! Francois

February 13, 2010, 09:18		#10
Niklas2 New Member Niklas Mohr Join Date: Feb 2010 Posts: 2 Rep Power: 0	I understand. The python work is so amazing that their download location is kept secret. Maybe www.fenics.org is the better choice. Greetingz Niklas

March 30, 2010, 13:19		#13
kev4573 Senior Member Kevin Smith Join Date: Mar 2009 Posts: 104 Rep Power: 17	CMake really is a great build system - helps a lot doing cross-compiles (hence the name). That would be my guess.

March 31, 2010, 16:20		#17
kev4573 Senior Member Kevin Smith Join Date: Mar 2009 Posts: 104 Rep Power: 17	Well that's cool - I'd be interested to hear how you got that setup. As far as I know eclipse has no plugin support for wmake, so I would guess it was a custom setup. This thread is probably not the right place to discuss this at length, but I'd be interested if you started a thread somewhere on how to get this setup, or can otherwise point me in the right direction. My arguement for cmake is really that it already has targets for many IDEs, and once you're working in a real IDE, I've found it is much easier to learn a code base and develop new code.