This is a simple sum example to demonstrate the building, emulation, and execution on of an FPGA kernel on Intel devices. It takes a list of input values, adds a value to each of these, and sends the results back. The purpose of this is to demonstrate the appropriate commands for the FPGA testbed and it can also act as a template for more complex kernels.
Full details about how to build and emulate this are available on the testbed website here.