Abstract: Apparatuses, systems, and techniques for testing processing units of a computing system are disclosed herein. A request to initiate a testing process for each of a set of processing units is received. A first processing unit includes a first virtual processor executing first operations. A second processing unit includes a second virtual processor executing second operations. Execution of the first operations is transferred from the first virtual processor to the second virtual processor. Execution of the testing process is initiated at the first processing unit while the second virtual processor executes the first and second operations. In response to a detection that the execution of the testing process is completed, execution of the first and second operations is transferred to the first virtual processor. Execution of the testing process is initiated at the second processing unit while the first virtual processor running executes the first and second operations.

Abstract: In one aspect there is provided a host device having: a modem interface arranged to transmit transmission units between the host device and a modem; a communication function configured to generate primitives to establish a communication event between the host device and a remote device; a client agent connected to receive control primitives from the communication function and operable to convert the control primitives to data transmission units; a host routing interface operable to route data transmission units from the client agent according to a predetermined route option which is set based on whether a communication event control function for processing the data transmission units is located on the host device or the modem.

Abstract: In one aspect there is provided a host device having: a modem interface arranged to transmit transmission units between the host device and a modem; a communication function configured to generate primitives to establish a communication event between the host device and a remote device; a client agent connected to receive control primitives from the communication function and operable to convert the control primitives to data transmission units; a host routing interface operable to route data transmission units from the client agent according to a predetermined route option which is set based on whether a communication event control function for processing the data transmission units is located on the host device or the modem.