Loupe: A Visualization Tool for High-Level Execution Plans in SystemDS.

The declarative programming language in SystemDS simplifies users to implement machine learning algorithms. It is able to generate execution jobs on different data processing engines including MapReduce and Spark. The GUI in data processing engines typical visualizes the low-level execution process (e.g., RDD transformation in Spark). However, the low-level description in Spark GUI does not show the relationship between DML operations and RDD primitives. In this work, we propose Loupe, a tool to visualize high-level execution plans in SystemDS to ease users to understand the execution process. This paper introduces the design of the tool and demonstrates a visualization case.