Implementing batched mldivide on the GPU

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Rodrigo
Rodrigo el 19 de Mzo. de 2014
Respondida: Edric Ellis el 10 de Dic. de 2014
Hi, I need to solve A*x=B for size(A)~[10,10,1e5] and size(B)~[10,1,1e5], and it seems like something like pagefun would be the way to do it: except that mldivide is not an option. I understand that cuBLAS has had the ability to run batch LU decompositions for some time and the newer cublas also seems to have a batched solver.
Is there a reasonably simple way to implement this in MATLAB (preferably R2013b or earlier)?
Thanks

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Edric Ellis
Edric Ellis el 19 de Mzo. de 2014
Unfortunately, as you have found PAGEFUN does not yet support batched MLDIVIDE. You might be able to use the GPU Mex interface to call CUBLAS yourself.
  2 comentarios
Rodrigo
Rodrigo el 19 de Mzo. de 2014
I was hoping I wouldn't have to do this, but I suppose there's no better alternative yet.
Adam
Adam el 29 de Abr. de 2014
Just chiming in: I also have a need for a pagefun 'mldivide'. If someone has done the MEX implementation already, please link. It would be greatly appreciated.

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Edric Ellis
Edric Ellis el 10 de Dic. de 2014
This is now supported in R2014b - see the release notes.

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