Task-Based Runtime Support and Programming for Finite Element Simulations
Why this work is in the frame
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Bibliographic record
Abstract
My work studies task-based runtime support for finite element method (FEM) assembly using StarPU. The idea is to replace bulk-synchronous loops with parallelized approach. Local kernels were rewritten in modern C++20/23, relying on non-owning views (std::span, std::mdspan) and a preallocated argument table to avoid repeated allocations. I also used METIS for partitioning and a greedy coloring step to guarantee conflict-free execution.The implementation is done for the project DOLFINx/FEniCS. On the 2D Poisson problem, assembly is already cheap and preprocessing dominates, so there is little to no gain and even loss of time on small model. On a 3D hyperelasticity benchmark, where each element is more expensive, the task-based model works well. Grouping cells into partitions reduces the number of tasks and keeps scheduling overhead low while maintaining balance. These results suggest that task-based assembly is a practical choice for nonlinear or compute-intensive models. Future extensions will need to focus on NUMA-aware scheduling, custom StarPU schedulers, and GPU support.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.005 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it