Showing papers by "Laung-Terng Wang published in 2015"
22 Nov 2015
TL;DR: A multi-threading parallel test pattern generator that is both deterministic and incurs zero test inflation is proposed, called SDC-TPG, which relies on synchronized dynamic compaction (SDC) to generate the same test pattern set as the conventional serial TPG withynamic compaction regardless of the thread timing and the thread count.
Abstract: Parallelism is one promising solution to accelerating the test pattern generation (TPG) process, several recent works also show that parallel TPG can reduce the test pattern count. However, today's parallel TPG's are mostly non-deterministic, i.e., the generated test set is timing and resource dependent, this complicates the debug process and may degrade the user experience. In this paper, we propose a multi-threading parallel test pattern generator that is both deterministic and incurs zero test inflation. Called SDC-TPG, the proposed parallel TPG relies on synchronized dynamic compaction (SDC) to generate the same test pattern set as the conventional serial TPG with dynamic compaction regardless of the thread timing and the thread count. Furthermore, an early primary fault TPG strategy is proposed to reduce the thread idle times and improve the speedup. Simulation results show that SDC-TPG achieves an average speedup of six with eight threads.
3 citations