HybridOS: runtime support for reconfigurable accelerators
Proceedings of the 16th international ACM/SIGDA symposium on Field programmable gate arrays
CODES+ISSS '09 Proceedings of the 7th IEEE/ACM international conference on Hardware/software codesign and system synthesis
Implementing OS components in hardware using AOP
ACM SIGOPS Operating Systems Review
A remote memory access infrastructure for global address space programming models in FPGAs
Proceedings of the ACM/SIGDA international symposium on Field programmable gate arrays
FlexTiles: a globally homogeneous but locally heterogeneous manycore architecture
Proceedings of the 6th Workshop on Rapid Simulation and Performance Evaluation: Methods and Tools
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In this paper, we present hthreads, a unifying programming model for specifying application threads running within a hybrid CPU/FPGA system. Threads are specified from a single pthreads multithreaded application program and compiled to run on the CPU or synthesized to run on the FPGA. The hthreads system, in general, is unique within the reconfigurable computing community as it abstracts the CPU/FPGA components into a unified custom threaded multiprocessor architecture platform. To support the abstraction of the CPU/FPGA component boundary, we have created the hardware thread interface (HWTI) component that frees the designer from having to specify and embed platform specific instructions to form customized hardware/ software interactions. Instead, the hardware thread interface supports the generalized pthreads API semantics, and allows passing of abstract data types between hardware and software threads. Thus the hardware thread interface provides an abstract, platform independent compilation target that enables thread and instruction-level parallelism across the software/hardware boundary.