Evaluation of High Level Synthesis Frameworks: Analysis Across Three Programming ParadigmsPublic Deposited
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High Level Synthesis (HLS) has played an important role in the design of high performance Field Programmable Gate Array (FPGA) based solutions and it is increasingly popular among developers. In this thesis, two HLS tools, Vivado HLS and Clash, supporting three programming language paradigms (imperative, transactionlevel modeling, and functional) are investigated. To assess the characteristics and performance of these HLS tools, we implement two trivial and non-trivial applications, Finite Impulse Response (FIR) filter and EigenValue Decomposition (EVD) with C++, SystemC and Clash. Pre-synthesis and post-synthesis results are elaborated to ensure each tool generates consistent outputs and simulation results are verified with the same program in MATLAB. It was found that Clash usually has better performance and latency as a result of the intrinsic parallelism feature of functional programming language Haskell. However, it was also found Vivado HLS has better results regarding power consumption and resource utilization, and provides more options for optimization of a design.
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