Abstract
One embodiment provides a dot-product engine that includes a reconfigurable adder tree whose effective accumulation width is controlled by a runtime alignment-bit setting. The engine can operate in a first mode that accumulates N operands using a wider internal alignment/precision, and in a second mode that accumulates 2N operands using a narrower internal alignment/precision on the same physical adder structure by segmenting carry chains or otherwise partitioning adder resources. The runtime alignment-bit control selects among modes (including precision/throughput combinations), enabling the same numeric data type to execute at different precision-throughput points without duplicating the adder tree, and optionally coordinating rounding and buffering to maintain acceptable numerical quality and bandwidth utilization.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Anonymous, "Alignment-Bit Controlled Precision-Throughput Scaling in a Dot-Product Engine via a Reconfigurable Adder Tree", Technical Disclosure Commons, (October 28, 2026)
https://www.tdcommons.org/dpubs_series/12521