In this paper, we present the design of П^it, an Aldor library to express parallel programs. Aldor is a general purpose programmingv language designed for computer algebra and П^it provides an Aldor low-level interface that interacts with hardware or system tools in order to express parallelism. Additionally, П^it provides an API that hides any low-level details such as sending messages, creating threads and provides an interface for data parallelism. This paper presents our design decisions and our implementation as well as examples of how easy Aldor programmers can implement parallel algorithms in a high-level abstract way with П^it.