RT Journal Article T1 MATSA: An MRAM-Based Energy-Efficient Accelerator for Time Series Analysis. A1 Fernández Vega, Iván A1 Giannoula, Christina A1 Manglik, Aditya A1 Quislant-del-Barrio, Ricardo A1 Mansouri-Ghiasi, Nika A1 Gómez-Luna, Juna A1 Gutiérrez-Carrasco, Eladio Damián A1 Plata-González, Óscar Guillermo A1 Mutlu, Onur K1 Proceso de datos K1 Dispositivos de almacenamiento de datos K1 Gestión de memoria K1 Análisis de series temporales AB Time Series Analysis (TSA) is a critical workload to extract valuable information from collections of sequential data, e.g., detecting anomalies in electrocardiograms. Subsequence Dynamic Time Warping (sDTW) is the state-of-the-art algorithm for high-accuracy TSA. We find that the performance and energy efficiency of sDTW on conventional CPU and GPU platforms are heavily burdened by the latency and energy overheads of data movement between the compute and the memory units. sDTW exhibits low arithmetic intensity and low data reuse on conventional platforms, stemming from poor amortization of the data movement overheads. To improve the performance and energy efficiency of the sDTW algorithm, we propose MATSA, the first Magnetoresistive RAM (MRAM)-based Accelerator for TSA. MATSA leverages Processing-Using-Memory (PUM) based on MRAM crossbars to minimize data movement overheads and exploit parallelism in sDTW. MATSA improves performance by 7.35×/6.15×/6.31× and energy efficiency by 11.29×/4.21×/2.65× over server-class CPU, GPU, and Processing-Near-Memory platforms, respectively. PB IEEE Computer Society YR 2024 FD 2024 LK https://hdl.handle.net/10630/38997 UL https://hdl.handle.net/10630/38997 LA eng NO Ivan Fernandez, Christina Giannoula, Aditya Manglik, Ricardo Quislant, Nika Mansouri-Ghiasi, Juan Gómez-Luna, Eladio Gutiérrez, Oscar G. Plata, Onur Mutlu. MATSA: An MRAM-Based Energy-Efficient Accelerator for Time Series Analysis. IEEE Access 12: 36727-36742 (2024) NO Gobierno de España NO High Performance, Edge And Cloud computing (HiPEAC) NO SAFARI Group’s Industrial Partners NO Semiconductor Research Corporation DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026