| { |
| "id": "single-software-execution--cli--fenics--task-08--ubuntu", |
| "snapshot": "FEniCS", |
| "instruction": "The starting input is a legacy FEniCS/DOLFIN Stokes-flow template `/home/user/Desktop/stokes_base.py` for a 2D pipe. Run with the legacy `dolfin` API used by the template (for example, FEniCS/DOLFIN 2019.1.0), not DOLFINx. At the start of the task, run legacy FEniCS with `/home/user/miniconda3/bin/conda run --no-capture-output --prefix /home/user/miniconda3/envs/fenics-legacy python` when working on `stokes_base.py`.\n\nComplete the following: 1. Modify and generate `/home/user/Desktop/stokes.py`: - Use `MixedElement([VectorElement(\"P\", mesh.ufl_cell(), 2), FiniteElement(\"P\", mesh.ufl_cell(), 1)])` - Inlet velocity: `u = (4*0.3*x[1]*(0.41-x[1])/(0.41**2), 0)` - No-slip on walls and the natural do-nothing (zero-traction) condition at the outlet, which fixes the outlet pressure reference for this fully developed profile - Viscosity `nu=0.001` - Solve 2. Extract and save to `/home/user/Desktop/summary.txt`: - Outlet (`x=2.2`) boundary-average pressure - Global maximum velocity magnitude Format: `outlet_pressure, max_velocity`", |
| "source": "https://olddocs.fenicsproject.org/dolfin/2019.1.0/python/", |
| "config": [ |
| { |
| "type": "upload_file", |
| "parameters": { |
| "files": [ |
| { |
| "local_path": "task-08/init_file/stokes_base.py", |
| "path": "/home/user/Desktop/stokes_base.py" |
| } |
| ] |
| } |
| } |
| ], |
| "trajectory": "trajectories/", |
| "related_apps": [ |
| "fenics" |
| ], |
| "artifact_paths": [ |
| "/home/user/Desktop/stokes.py", |
| "/home/user/Desktop/summary.txt" |
| ], |
| "evaluator": { |
| "postconfig": [ |
| { |
| "type": "upload_file", |
| "parameters": { |
| "files": [ |
| { |
| "local_path": "task-08/eval.py", |
| "path": "/home/user/Desktop/eval.py" |
| } |
| ] |
| } |
| } |
| ], |
| "func": "exact_match", |
| "result": { |
| "type": "vm_command_line", |
| "command": "/home/user/miniconda3/bin/conda run --no-capture-output --prefix /home/user/miniconda3/envs/fenics-legacy /home/user/miniconda3/envs/fenics-legacy/bin/python /home/user/Desktop/eval.py", |
| "shell": "true" |
| }, |
| "expected": { |
| "type": "rule", |
| "rules": { |
| "expected": "True\n" |
| } |
| } |
| }, |
| "proxy": false, |
| "fixed_ip": false, |
| "possibility_of_env_change": "low" |
| } |
|
|
