Recorded 02 May 2023. Alex Aiken of Stanford University presents "Task-Based Programming with Legion" at IPAM's workshop for Complex Scientific Workflows at Extreme Computational Scales. Abstract: In recent years task-based programming systems have become widely used in data analytics and machine learning; some well-known examples include TensorFlow, PyTorch, Spark and Dask. This talk will describe the basics of task-based programming and its advantages for scientific workflows. Examples will be drawn from the Legion task-based programming system. Learn more online at: hhttp://www.ipam.ucla.edu/programs/workshops/workshop-iii-complex-scientific-workflows-at-extreme-computational-scales/