Niketan Pansare created SYSTEMML-1033:

             Summary: Add LU and QR functionality to GPU backend
                 Key: SYSTEMML-1033
             Project: SystemML
          Issue Type: Sub-task
          Components: Runtime
            Reporter: Niketan Pansare

For LU: See JCublas2's cublasDgetrfBatched method
For QR: See JCublas2's cublasDgeqrfBatched method

The key changes required:
1. Add GPU backend in
2. Add MultiReturnBuiltinGPUInstruction that invokes above functions either 
directly or through LibMatrixCUDA.

[~nakul02] Do you want to take a pass at this ?

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