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A near-/sub-threshold programmable clock generator is proposed in this paper. The major challenge of the ultra-low voltage (ULV) circuits is that the lock-in range of the delay line is easily affected by the environmental variations. In the proposed clock generator, there is a PVT compensation unit which consists of a set of delay line and a PVT detector. The unit is responsible for adjusting the...
By reconfiguring part of the cache as software-managed scratchpad memory (SPM), hybrid caches manage to handle both unknown and predictable memory access patterns. However, existing hybrid caches provide a flexible partitioning of cache and SPM without considering adaptation to the run-time cache behavior. Previous cache set balancing techniques are either energy-inefficient or require serial tag...
In this paper, we propose a run-time strategy for managing writes onto last level cache in chip multiprocessors where STT-RAM memory is used as baseline technology. To this end, we assume that each cache set is decomposed into limited SRAM lines and large number of STT-RAM lines. SRAM lines are target of frequently-written data and rarely-written or read-only ones are pushed into STT-RAM. As a novel...
Recent researches have indicated that multi-operand addition on FPGAs can be efficiently realized as the architecture consisting of a compressor tree which reduces the number of operands and a carry-propagate adder like ASIC by utilizing generalized parallel counters(GPCs). This paper addresses power and delay aware synthesis of GPC-based compressor trees. Based on the observation that dynamic power...
In recent years, multi-core systems have become mainstream in computer industry. The design of multi-cores takes advantage of thread-level parallelism in emerging applications that are computationally intensive and highly parallel. Energy efficiency is one of the biggest challenges in the design of multi-core systems, and workload imbalance among parallel threads is one of sources of energy inefficiency...
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