In one example, a system for executing applications can include a main processor to initialize a virtual machine to execute an application. The main processor can also determine a main utilization indicator of the main processor is above a threshold and an auxiliary utilization indicator of an auxiliary processor is below a threshold, wherein the auxiliary processor is based on an auxiliary instruction set architecture. Additionally, the main processor can transmit an instruction from the application to the auxiliary processor for execution and update context data for the application in response to receiving an execution result from the auxiliary processor.