Description

Previously, a task was predetermined to fail before submission which meant executors with retry semantics could never recover. This changes failure prob to be computed in the task during execution.

Also adds/updates tests to work towards #65.

Fixes N/A

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Refactoring (internal implementation changes)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update (no changes to the code)
• CI change (changes to CI workflows, packages, templates, etc.)
• Version changes (changes to the package or dependency versions)

Testing

Added unit tests and tested with this config.

[app]
name = "failures"
base = "cholesky"
failure_rate = 0.25
failure_type = "dependency"

[app.config]
matrix_size = 100
block_size = 50

[engine.executor]
name = "parsl-htex"
retries = 3

[engine.executor.htex]
max_workers_per_node = 8

Pull Request Checklist

Please confirm the PR meets the following requirements.

• Relevant tags are added (breaking, bug, dependencies, documentation, enhancement, refactor).
• Code changes pass pre-commit (e.g., ruff, mypy, etc.).
• Tests have been added to show the fix is effective or that the new feature works.
• New and existing unit tests pass locally with the changes.
• Docs have been updated and reviewed if relevant.