CUDA  Acceleration for BoomerAMG Implementation

• About
• Design
• Implementation Details
• Schedule
• Project Proposal
• Intermediate Report
• Final Report
• Performace Results
• Source code
• References

Implementation Details

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Here is a list of hotspots ported to CUDA:
1. hypre_BoomerAMGBuildInterp in par_interp.c



coarseshiftinterp contains the cuda calls.

2. GenerateLaplacian27pt in file par_laplacian_27pt.



The function BinarySearchOnCudaCallerDif contains the cuda calls.

3. hypre_SeqVectorInnerProd



We found that the above function was called frequently by the other two hotspots hypre_BoomerAMGCycle and Hypre_ParCSRMatrix repeatedly and so we ported this call to Cuda.

4. hypre_BoomerAMGRelax



This is another function from the file seq_mv/vector.c which was ported to CUDA due to the large number of times it was called from the source of the hotspot.

5.hypre_ParCSRMatrixMatvec



This function was a hotspot when run with 27pt and which has been reduced due to porting with CUDA.