A deployment manager deploys processing elements of a streaming application in a non-uniform memory access (NUMA) aware manner to reduce memory coherency overhead in a streaming application. The deployment manager is able to utilize information about an application's operators and the architecture of the NUMA nodes to place whole processing elements on a single NUMA node. Where the operators of a processing element would cross NUMA node boundaries, the deployment manager may consolidate the threads of a processing element to place an application's operators on a single NUMA node to increase efficiency of the system.