COSMOS’ edge cloud computing sites will contain three types of computing resources: CPUs, GPU accelerators, and FPGAs in order to provide flexible and powerful signal processing capabilities, while also supporting general purpose computing tasks required for different applications. Software tools will be provided to support parallel execution on combinations of CPU/GPU/FPGA. The software stack will allow convenient software/services development and deployment on a virtualized platform, and access to the “bare-metal” for developing applications/services that need to take full advantage of the ultra-high bandwidth and ultra-low latency of the testbed.