hpc-elmerfem

# HPC ElmerFEM Treat ElmerFEM as a solver-input workflow centered on the `.sif` file plus a mesh directory. ## Start 1. Read `references/sif-workflow-manual.md` before creating or editing a `.sif`. 2. Read `references/block-and-equation-matrix.md` when mapping simulation, body, material, equation, solver, and boundary blocks. 3. Read `references/mesh-boundary-and-output.md` when working with mesh directories, body IDs, boundary IDs, and result files. 4. Read `references/cluster-execution-playbook.md` when staging an ElmerFEM workflow for scheduler-backed cluster execution. 5. Read `references/error-recovery.md` when ElmerSolver parsing, coupling, or solve behavior fails. ## Additional References Load these on demand: - `references/solver-controls-and-linear-systems.md` for direct versus iterative settings and nonlinear or steady tolerances - `references/transient-and-timestep-control.md` for transient simulation blocks and timestep policies - `references/elmergrid-and-mesh-conversion.md` for mesh conversion and ElmerGrid workflows - `references/simulation-body-solver-matrix.md` for block-responsibility and ID-mapping lookup tables - `references/physics-output-matrix.md` for physics-to-solver-to-output selection tables - `references/error-pattern-dictionary.md` for structured parse, ID-mapping, and solver-family failure signatures - `references/cluster-execution-playbook.md` for mesh-directory staging, launch style, and cluster-side continuation planning ## Reusable Templates Use `assets/templates/` when a concrete `.sif` scaffold is needed, especially: - `heat_steady.sif` - `elasticity_static.sif` - `heat_transient.sif` - `stokes_minimal.sif` - `elmerfem-solver-slurm.sh` ## Guardrails - Do not invent SIF keys outside documented Elmer syntax. - Do not mismatch Body, Material, Equation, and Boundary Condition IDs. - Do not reuse a solver block blindly across unrelated physics. - Do not treat mesh boundary IDs as self-explanatory; map them explicitly. ## Outputs Summarize: - physics family - mesh directory assumptions - core solver and equation blocks - body and boundary mapping - expected result files