Riptable can only distribute at the low level of primitives it sees, so it must split tasks and collect results at the level of single function calls. Dask buil

Riptable can only distribute at the low level of primitives it sees, so it must split tasks and collect results at the level of single function calls. Dask builds up graphs of operations on a higher level. There are advantages and disadvantages to both approaches, depending on the actual task.