Hej Richard

I made sure that the files exist and I sourced everything again.

I then start the code, but I am still getting errors. The path should be right. Compiling of of-gpu went find and I didn't get any errors. I soft linked the install/release/lib to install/lib.

I marked something in read. I know that the path does not exist. I checked that the green-marked file and path exist. and they do. Further down the compilation it is missing many more files and always results in the same errors. like
in this one all the green lnInclude directories are missing.

To solve "fatal error: ofgpu/ofgpuconfig.h: No such file or directory"
 

Hi romant,

ofgpu-0.2 does not create ./src directory. you should make it your self.
To solve "fatal error: ofgpu/ofgpuconfig.h: No such file or directory" copy "ofgpu-0-2/ofgpu" directory to "ofgpu-0-2/src/":

mkdir ofgpu-0-2/src -p
cp -r ofgpu-0-2/ofgpu ofgpu-0-2/src/

Ahmad

thank you, but this still leaves some errors to work on. like all the linking errors that I mentioned with the normal openfoam :( and now it at least tries to compile part of the of-gpu, but still runs into problem, namely, when building PBiCGgpu.C

and of course the missing lnInclude directories.

$WM_PRECISION or a similar environment variable
 

Hi Roman,

I had the same problem. You should export $WM_PRECISION or a similar environment variable in <open-foam-root>/etc/bashrc

It should have "SP" value since ofgpu supports only single-precision floating point. For you, its value is "DP" probably.

Recompiling all modules is needed :)

Missing src directory
 

I see the problem - I missed the src directory in my package hierarchy (ofgpu-0-2.tgz). I've fixed it now, should be good to go. Thanks for finding/reporting this problem.

I've also added a note about single precision in the instructions: http://www.symscape.com/gpu-0-2-openfoam

Unknown function type cudaGpu
 

I finished compiling and obtained libgpu.so in
platforms/linux64GccSPOpt/lib/cuda/
but when I tried pitzDailyGpu, I've got the following error
Starting time loop

--------------------------
--> FOAM Warning :
From function dlOpen(const fileName&, const bool)
in file POSIX.C at line 1141
dlopen error : gpu: cannot open shared object file: No such file or directory
--> FOAM Warning :
From function dlLibraryTable::open(const fileName&, const bool)
in file db/dynamicLibrary/dlLibraryTable/dlLibraryTable.C at line 96
could not load "gpu"
--> FOAM Warning :
From function dlLibraryTable::open(const dictionary&, const word&, const TablePtr&)
in file lnInclude/dlLibraryTableTemplates.C at line 67
Could not open library "gpu"

--> FOAM FATAL ERROR:
Unknown function type cudaGpu
-------------------------------------------

am I missing something here ?

Check libofgpu.so
 

Check that libofgpu.so is also in your LD_LIBRARY_PATH

Greetings to all!
That name in bold is unrolled to "libgpu.so".

@arphy: Along with Richard's suggestion, I'm also guessing that there is a typo somewhere in you case's "controlDict" file? "gpu" instead of "ofgpu".

Best regards,
Bruno

gpu in controlDict is correct
 

It's correct to load libgpu.so ("gpu" in your controlDict) and I was thinking that given libgpu.so is in the right location, it is more likely that libofgpu.so (which libgpu.so references) was not being found and therefore loading libgpu.so would fail.

For reference libgpu.so is the bridge library between OpenFOAM and libofgpu.so. libofgpu.so is independent of OpenFOAM and only references CUDA libraries.

No, as discussed above controlDict should refer to gpu not ofgpu.

Bruno, partly this confusion is likely because I named the libs so similar and it's easy to miss refer to the wrong one.

Try replacing "gpu" with "libgpu.so"
 

Another thought, try replacing "gpu" in controlDict with "libgpu.so" - though this shouldn't be necessary. I suggest this because the dlopen error message shouldn't be reported in it's raw form, at least not in OpenFOAM 2.0.x, yet that is what you are seeing.

Just to be clear which version of OpenFOAM and ofgpu are you using?

Thanks you very much for your help. It is working now.
This part in my controlDict looks like this
functions
{
cudaGpu
{
type cudaGpu;
functionObjectLibs ("libgpu.so");
cudaDevice 0;
}
}

What do you think why the normal setting does not work ?
BTW. My OpenFoam is the one I clone from the repository yesterday (have no idea how to check the version via git)
I will redo another make with your designated version of OpenFoam.

Match git commit
 

I think the version you checked out of git has a modified Foam::dlopen routine.

For the patch to work correctly you need to match the exact version of OpenFOAM from git.

git commit: 2a7a68737dba87d82500df67029a15aeda662c42, Date: Sept. 14 11:28:07 2011.

Use:

1. git clone http://github.com/OpenFOAM/OpenFOAM-2.0.x
2. cd OpenFOAM-2.0.x
3. git checkout 2a7a68737dba87d82500df67029a15aeda662c42
4. apply patch

error with nviroment variable for OpenFOAM-2.1.x
 

As I download OpenFOAam-2.1.x from https://github.com/OpenFOAM/OpenFOAM-2.1.x and apply the patch.

I run the foamSystemCheck to check if I can compile OpenFOAM
then I run foamInstallationTest to check if I source my ~/.bashrc correctly
and I got the errors shown below. No error during applying patch. Plz help !!

ERROR MESSAGE IN TERMINAL:

Need Help debugging this message
 

I'm trying to compile cuda with wmake within ~/OpenFOAM/OpenFOAM-2.1.0/src/gpu/cuda/ and have the errors shown below. What does it mean ?

Probably that you should have used 'wmake libso' to build a library instead of an executable.

***EDIT***
I wasn't configuring cmake correctly. I followed directions in the comments of the symscape website and now have everything working.
************

Applying
$ cmake -DCMAKE_INSTALL_PREFIX=/opt/ofgpu-0-2/install

gives me the following errors

How do I resolve these errors? Should I be using -DCMAKE_INSTALL_PREFIX=/opt/ofgpu-0-2/src/ofgpu/install?

I can apply the OF patch with no errors.
I'm on 64bit Ubuntu 10.04. For reference my $HOME/.bashrc file contains

pitzDailyGpu example is not working
 

Hello,

I am trying to use ofgpu-1-1-0 library to accelerate the performance of linear solver in OpenFoam 2.2.x.
I have followed the steps given on http://www.symscape.com/gpu-1-1-openfoam link.
Try to execute the given example pitzDailyGpu.
But, the error is like...

-------------------------------------------------------------------------------------------------------------------------------
--> FOAM Warning :
From function dlOpen(const fileName&, const bool)
in file POSIX.C at line 1179
dlopen error : libgpu.so: cannot open shared object file: No such file or directory
--> FOAM Warning :
From function dlLibraryTable::open(const fileName&, const bool)
in file db/dynamicLibrary/dlLibraryTable/dlLibraryTable.C at line 99
could not load "libgpu.so"
--> FOAM Warning :
From function dlLibraryTable::open(const dictionary&, const word&, const TablePtr&)
in file lnInclude/dlLibraryTableTemplates.C at line 67
Could not open library "libgpu.so"



--> FOAM FATAL ERROR:
Unknown function type cudaGpu

Valid functions are :

4
(
patchProbes
probes
sets
surfaces
)



From function functionObject::New(const word& name, const Time&, const dictionary&)
in file db/functionObjects/functionObject/functionObject.C at line 92.

FOAM exiting
-------------------------------------------------------------------------------------------------------------------------------

As told in the earlier post that change the functionObjectLibs ("gpu"); to functionObjectLibs ("libgpu.so");
still, the same error is occurring.

How can I resolve this error?

Hello,
I'm having trouble compiling ofgpu. I didn't really understand how to make this compilation. Can you help me?
Best Regards,
Diego