MRAPI Implementation for Heterogeneous Reconfigurable Systems-on-Chip

In a Reconfigurable System-on-Chip (SoC) platform, the application is divided into threads managed by an operating system, and whereas some threads are implemented as hardware threads and allocated into a partition of the chip, others run as software threads on embedded processing elements. Relying on the Multicore Resource management API (MRAPI) specification and client-server mechanisms, we propose solutions to provide a flexible access to the operating system services for every threads whatever is the core they are running on. In order to improve the application deployment process when targeting HRSoC, we realized both a hardware and a software implementation of this API. Depending on affinities of the operating system services with each core, such a solution allows a fine-grain implementation of these services over the platform.