Features Multi - Cycle Single Event Transient Fault Security Aware MO - DSE for Single loop CDFGs in HLS

Multi-cycle single event transient (SET) fault security aware multi-objective (MO)-DSE for single loop CDFGs during behavioral synthesis has not received significant attention in the literature yet. Solving the aforesaid problem in the context of Control Data Flow Graph (CDFG) is non-trivial as it involves simultaneous generation of an optimal combination of multi-cycle fault secured datapath and loop unrolling factor satisfying conflicting user constraints (such as hardware area and delay). This paper solves the aforementioned problems with the following specific contributions: (a) a novel multi-cycle SET fault security aware MO-DSE methodology that explores an optimal combination of transient fault secured double modular redundant (DMR) datapath configuration and loop UF for CDFG (b) multi-cycle fault secured conditions (c) maintains trade-off between hardware area and delay as user constraints during exploration process. Finally, the proposed approach when tested on standard benchmarks yielded optimal solution which minimizes the fitness function and satisfies user constraints, besides achieving significantly reduced cost (improved quality) of the final solution when compared to a recent fault secured approach.