Overview
What this challenge is about.
Receive the existing CFD solver (C++17 + OpenMP, around 8,000 lines, the hot kernel is a 7-point stencil sweep over a 512^3 grid), the validation harness, and access to an A100 80GB testbed. Plan the port: choose between native CUDA, CUDA + cuBLAS for the linear-solve substep, or Kokkos for portability. Implement the stencil kernel using shared-memory tiling (32x32x4 with halo), maximize occupancy without spilling, fuse the boundary-condition update where useful. Validate numerical equivalence per cell within 1e-8 against the CPU baseline. Profile with Nsight Compute: report achieved FP64 throughput, memory-bandwidth utilization, and warp-execution efficiency. Deliver the CUDA kernel + harness, the numerical-validation report, an Nsight Compute report (annotated), and a 6-page handover memo for the simulation-tech lead.
The Brief
What you'll do, and what you'll demonstrate.
Port a Navier-Stokes stencil kernel from CPU + OpenMP to CUDA on an A100, hit >=60 percent peak FP64 throughput, and validate per-cell numerical equivalence within 1e-8.
Earning criteria — what you'll demonstrate
- Port a stencil kernel to CUDA with shared-memory tiling
- Tune occupancy + register usage without spills
- Validate per-cell numerical equivalence rigorously
- Read Nsight Compute output and act on it
Program Fit
Where this fits in your program.
Sharpens the same skills your degree expects you to demonstrate.
Skills
Skills you'll demonstrate.
Each one shows up on your verified credential.
Careers
Roles this prepares you for.
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Career mappings coming soon.