HMatrix directly created and filled on the GPU ?

[GBZH]

Hello,

Currently I would like to use H2Opus to accelerate my home made 3D electrostatic BEM solver (Boundary Element Method) which runs on the GPU. The N cells data used to build an NxN non symmetric dense matrix are stored in the GPU memory and the matrix elements are thus computed on the GPU. I would like to know if H2Opus has a method to construct a non symmetric HMatrix directly on the GPU.

Thanks a lot for any answer/clue and for this very promising library.

[stefanozampini]

Hi @GBZH , again sorry for slow reply. We had hmatrix construction on GPU some time ago, not sure if it went through the process of making the code public. Can you comment @wajihboukaram ?

[wajihboukaram]

Constructing on the GPU would need the interpolation routines to be implemented as batch kernels.