Levo - A scalable processor with high IPC
Year: 2003
Type: article
Abstract: The Levo high IPC microarchitecture is described and evaluated. Levo employs instruction time-tags and Active Stations to ensure correct operation in a rampantly speculative and out-of-order resource flow execution model. The Tomasulo-algorithm-like broadcast buses are segmented; their lengths are constant, that is, do not increase with machine size. This helps to make Levo scalable. Known high-ILP techniques such as Disjoint Eager Execution and Minimal Control Dependencies are implemented in novel ways. Examples of basic Levo operation are given. A chip floorplan of Levo is presented, demonstrating feasibility and little cycle-time impact. Levo is simulated, characterizing its basic geometry and its performance.
Language: English
Subfield: Hardware and Architecture
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1469449
