Context-aware resources placement for SRAM-based FPGA to minimize checkpoint/recovery overhead

Abstract

Existing SRAM-based Field Programmable Gate Arrays (FPGAs) are very sensitive to Single Event Effects (SEE) phenomena in harsh environments. To protect applications running on SRAM-based FPGAs from SEE, those applications mainly relay on resources redundancy approaches, which involve significant resources overhead. New proposed fault mitigation approaches use Partial Dynamic Reconfiguration to overcome such huge overhead of redundancy methods. In [1] a Backward Error Recovery (BER) approach based on Partial Dynamic Reconfiguration (PDR) is proposed. Nevertheless, such approach suffers greatly from time latency issue. In this paper, we introduce a new context-aware resources placement strategy to minimize the time overhead induced by the BER fault mitigation approach. Both of checkpoint and recovery overhead are evaluated with and without our context-aware resources placement strategy. A reduction of up to 71 % of context frame is reported.