Cristian Neagu
Architectural exploration of Logic-in-Memory systems with DExIMA-CAD.
Rel. Maurizio Zamboni, Giovanna Turvani, Mariagrazia Graziano. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Elettronica (Electronic Engineering), 2023
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Abstract
In the past years, the “memory wall problem” has questioned the feasibility of the traditional von Neumann architecture for new electronic systems. Due to several technological concerns, a performance bottleneck is found in the memory sub-system. As regards power consumption, energy is wasted in the processor-memory data traffic. The scientific literature is rich in examples of beyond von Neumann alternatives. For instance, in Logic-in-Memory (LiM) arrays, memory cells are endowed with computational capabilities, creating a naturally-parallel processing element. Thus, such structures may support SIMD operations and may successfully accelerate a large variety of algorithms. At the VLSI laboratory of the Politecnico di Torino, researchers have been studying LiM solutions, proving their effectiveness in mitigating the memory wall problem.
The research work highlighted the need of new software tools to support the design flow for LiM architectures and to characterise their main figures of merit
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