1. A system, comprising: a host processor connected to system memory having a physical address space via a system memory bus; and at least one offload processor module, including at least one offload processor mounted on the offload processor module, and configured to execute operations on data received over the system memory bus as at least one write operation to a predetermined physical address of the system memory, and to output context data to a context memory, and read context data from the context memory, and hardware scheduling logic mounted on the module and configured to control operations of the at least one offload processor based on metadata contained in the at least one write operation.