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Forum: OpenFOAM Announcements from Other Sources November 23, 2011, 08:46
Replies: 37
Views: 17,975
Posted By gocarts
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:...
Forum: OpenFOAM Announcements from Other Sources November 22, 2011, 16:39
Replies: 37
Views: 17,975
Posted By gocarts
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...
Forum: OpenFOAM Announcements from Other Sources November 22, 2011, 16:09
Replies: 37
Views: 17,975
Posted By gocarts
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...
Forum: OpenFOAM Announcements from Other Sources November 22, 2011, 13:07
Replies: 37
Views: 17,975
Posted By gocarts
Check libofgpu.so

Check that libofgpu.so is also in your LD_LIBRARY_PATH
Forum: OpenFOAM Announcements from Other Sources October 24, 2011, 10:55
Replies: 37
Views: 17,975
Posted By gocarts
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...
Forum: OpenFOAM Announcements from Other Sources October 21, 2011, 15:31
Replies: 37
Views: 17,975
Posted By gocarts
bashrc args

Another thought.

You have to supply your settings "WM_GPU='CUDA' CUDA_ARCH_PATH=/home/roman/OpenFOAM/ofgpu-0-2"

as args to etc/bashrc e.g.,:

export FOAM_INST_DIR="$(HOME)/projects/of/of2.0";...
Forum: OpenFOAM Announcements from Other Sources October 21, 2011, 13:31
Replies: 37
Views: 17,975
Posted By gocarts
Paths wrong

Errors I see:


"could not open file omp.h for source file UIPread.C"
"could not open file ofgpu/ofgpuconfig.h for source file cudaGpu.C"


So there's something wrong with your paths.
...
Forum: OpenFOAM Announcements from Other Sources October 21, 2011, 11:03
Replies: 37
Views: 17,975
Posted By gocarts
Need to match exact OpenFOAM 2.0.x for patch

I think your compilation failed earlier. You need to find the first error to diagnose the problem.

The problem you are seeing is a symptom (not the cause) related to missing lnInclude directories....
Forum: OpenFOAM Announcements from Other Sources October 17, 2011, 10:51
Replies: 37
Views: 17,975
Posted By gocarts
Double precision vs single precision

I think then your problems are two fold:


You need to patch the exact version of OpenFOAM 1.7.x (not 1.7.1) specified in the instructions at: http://www.symscape.com/gpu-openfoam
I guess you...
Forum: OpenFOAM Announcements from Other Sources October 17, 2011, 10:32
Replies: 37
Views: 17,975
Posted By gocarts
Don't define FOAM_LABEL_64

Just to follow up on:



I can't see where this is defined by default. It's not about whether you are compiling 64-bit, it relates to the size of integers. If you can find where it's defined I...
Forum: OpenFOAM Announcements from Other Sources October 17, 2011, 10:14
Replies: 37
Views: 17,975
Posted By gocarts
What about ofgpu 0.2?

Wouldn't you prefer to build the latest version of ofgpu 0.2 with OpenFOAM 2.0.x? http://www.symscape.com/gpu-0-2-openfoam

By the looks of your errors it seems that your build may have failed to...
Forum: OpenFOAM Announcements from Other Sources October 17, 2011, 09:36
Replies: 37
Views: 17,975
Posted By gocarts
Foam::label as long, why?

So I guess on your system (Linux?) you have Foam::label defined as a long?

That would result from defining 'FOAM_LABEL_64' for label.H

Is this the case?

Do you really need access to integers...
Forum: OpenFOAM Announcements from Other Sources May 2, 2011, 09:13
Replies: 37
Views: 17,975
Posted By gocarts
Thanks for the feedback

Thanks for the feedback Bernard.

You raised some good points:


I'll update the source code patch shortly to fix these 2 problems.


I think these 2 issues are caused because you are missing...
Forum: OpenFOAM Announcements from Other Sources April 23, 2011, 19:16
Replies: 37
Views: 17,975
Posted By gocarts
GPU Linear Solvers for OpenFOAM

ofgpu is a free GPL library from Symscape that provides GPU linear solvers for OpenFOAMŪ. The experimental library targets NVIDIA CUDA devices on Windows, Linux, and (untested) Mac OS X. It uses the...
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