Reconfigurable FPU With Precision Auto-Tuning for Next-Generation Transprecision Computing

Mar 1, 2026 by Guilherme Dias, Luís Crespo, Timo Schlachter, M. A. Heller, Jens Krueger, P. Tomás, N. Roma, Nuno Neves (IEEE Transactions on Circuits and Systems Part 1: Regular Papers)

DOI 10.1109/TCSI.2025.3632527

We built a floating-point unit that auto-tunes operand precision and vectorization at runtime, turning unused datapath into adaptive SIMD to match application accuracy and crank up energy efficiency. It’s a reconfigurable FPU with an on-chip controller that picks IEEE, bfloat16, DLFloat or mixed modes on the fly so your workload gets just enough precision for far lower power and much higher GOPS/W.

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