Task Relationships

Submission

On submission in the config file, task dependencies are of the form [dataset_id].(name|index) and come in a json list so you can depend on more than one thing. When the dataset_id is excluded, the dependency is local to the current dataset.

This means these are all valid:

• 1

• generate

• d1.1

• d1.generate

• 1,2,3

• generate,propagate

• d1.level2,d2.level2

The default pattern is to have sequential tasks in a dataset depend on the previous task.

Within task_rel

Internally within the task_rel table, dependencies are of the form task_rel_id[,task_rel_id...], a comma-separated-list of task_rel_ids.

Within task

In the task table itself, dependencies are of the form task_id[,task_id...], a comma-separated-list of task_ids. This gives quick lookup of whether the dependencies have been completed already.