  Multi-core quantum architectures offer a solution to the scalability
limitations of traditional monolithic designs. However, dividing the system
into multiple chips introduces a critical bottleneck: communication between
cores. This paper introduces qcomm, a simulation tool designed to assess the
impact of communication on the performance of scalable multi-core quantum
architectures. Qcomm allows users to adjust various architectural and physical
parameters of the system, and outputs various communication metrics. We use
qcomm to perform a preliminary study on how these parameters affect
communication performance in a multi-core quantum system.
