Re: GPU support in BART

["Uecker, Martin" <Martin.Uecker@med.uni-goettingen.de>]

Hi Andreas,

I added a master-contrib branch which contains a
bart-cuda package which is identical to bart
except it activates cuda support in the bart
binary.

I am not sure about the control file. I added

Provides: bart
Conflicts: bart
Replaces: bart

but I am not so sure whether this is correct.


Best.
Martin




Am Mittwoch, den 16.12.2020, 08:54 +0100 schrieb Martin Uecker:
> 
> Hi all,
> 
> I want to activate GPU support in the Debian package
> for the BART toolbox, but I am not sure what is the 
> best way to approach this.
> 
> There may be several options:
> 
> We can provide an additional package which can be
> installed alternatively, e.g. bart-gpu and which
> provides a CUDA-enabled binary and conflicts with
> the regular package.  But I wonder whether this would
> make all bart packages non-free?  Or do we need
> two separate source packages? 
> 
> 
> Maybe there is a way to compile and link
> against CUDA with requiring the presence of the
> dynamic library of run-time.  We could then
> dlopen the library at run-time if it is
> present. But the compilation would then
> still depend on a non-free package.
> 
> 
> We could try to move GPU backend into a module
> which can be loaded at run-time and which is
> then packaged separately. But this would 
> require some development effort.
> 
> 
> Maybe you have some recommendations? Or you can
> recommend a package to look at as an example?
> 
> Best,
> Martin