Exactly as described, this is the ceiling on how many benchmark test instances can be actively running, not merely configured, at the same time on this chassis. This is the binding constraint that determines whether a large batch verification job can run all its test instances concurrently or must be staged in waves, typically driven by available FPGA hardware sessions rather than software configuration space. For example, a platform limited to 8 simultaneous running tests would force an operator verifying 20 circuits to run them in 3 sequential batches rather than all at once.