Q: possibility of running ILU solve phase on the GPU

[angainor]

I am using SuperLU to compute and apply an ILU-based preconditioner. I compute the factors (and solve the system) using zgsisx.

Since SuperLU does not have GPU support, I am wondering if it is possible to use the computed LU factors in SuperLU_dist, to perform only the solve stage on the GPU. There is no communication involved between the MPI ranks - from the point of view of the tri-solves the operation is strictly local.

I can see the dCopyLUToGPU3D function, which potentially sounds right. Is it possible to use this to achieve what I need?

Thanks!

[xiaoyeli]

We plan to provide such an interface in a few weeks.