IoT applications span a wide range in performance and memory footprint, under tight cost and power constraints. High-end applications rely on power-hungry Systems-on-Chip (SoCs) featuring powerful processors, large LPDDR/DDR3/4/5 memories, and supporting full-fledged Operating Systems (OS). On the contrary, low-end applications typically rely on Ultra-Low-Power μcontrollers with a “close to metal” software en-vironment and simple micro-kernel-based runtimes. Emerging applications and trends of IoT require the “best of both worlds”: cheap and low-power SoC systems with a well-known and agile software environment based on full-fledged OS (e.g., Linux), coupled with extreme energy efficiency and parallel digital signal processing capabilities. We present HULK-V: an open-source Heterogeneous Linux-capable RISC-V-based SoC coupling a 64-bit RISC-V processor with an 8-core Programmable Multi-Core Accelerator (PMCA), delivering up to 13.8 GOps, up to 157 GOps/W and accelerating the execution of complex DSP and ML tasks by up to 112× over the host processor. HULK-V leverages a lightweight, fully digital memory hierarchy based on HyperRAM IoT DRAM that exposes up to 512 MB of DRAM memory to the host CPU. Featuring HyperRAMs, HULK-V doubles the energy efficiency without significant performance loss compared to featuring power-hungry LPDDR memories, requiring expensive and large mixed-signal PHYs. HULK-V, implemented in Global Foundries 22nm FDX technology, is a fully digital ultra-low-cost SoC running a 64-bit Linux software stack with OpenMP host-to-PMCA offload within a power envelope of just 250 mW.

HULK-V: a Heterogeneous Ultra-low-power Linux capable RISC-V SoC / Valente, Luca; Tortorella, Yvan; Sinigaglia, Mattia; Tagliavini, Giuseppe; Capotondi, Alessandro; Benini, Luca; Rossi, Davide. - 2023-:(2023), pp. 1-6. (Intervento presentato al convegno 2023 Design, Automation and Test in Europe Conference and Exhibition, DATE 2023 tenutosi a Antwerp, Belgium nel 17-19 April 2023) [10.23919/DATE56975.2023.10137252].

HULK-V: a Heterogeneous Ultra-low-power Linux capable RISC-V SoC

Capotondi, Alessandro
Supervision
;
2023

Abstract

IoT applications span a wide range in performance and memory footprint, under tight cost and power constraints. High-end applications rely on power-hungry Systems-on-Chip (SoCs) featuring powerful processors, large LPDDR/DDR3/4/5 memories, and supporting full-fledged Operating Systems (OS). On the contrary, low-end applications typically rely on Ultra-Low-Power μcontrollers with a “close to metal” software en-vironment and simple micro-kernel-based runtimes. Emerging applications and trends of IoT require the “best of both worlds”: cheap and low-power SoC systems with a well-known and agile software environment based on full-fledged OS (e.g., Linux), coupled with extreme energy efficiency and parallel digital signal processing capabilities. We present HULK-V: an open-source Heterogeneous Linux-capable RISC-V-based SoC coupling a 64-bit RISC-V processor with an 8-core Programmable Multi-Core Accelerator (PMCA), delivering up to 13.8 GOps, up to 157 GOps/W and accelerating the execution of complex DSP and ML tasks by up to 112× over the host processor. HULK-V leverages a lightweight, fully digital memory hierarchy based on HyperRAM IoT DRAM that exposes up to 512 MB of DRAM memory to the host CPU. Featuring HyperRAMs, HULK-V doubles the energy efficiency without significant performance loss compared to featuring power-hungry LPDDR memories, requiring expensive and large mixed-signal PHYs. HULK-V, implemented in Global Foundries 22nm FDX technology, is a fully digital ultra-low-cost SoC running a 64-bit Linux software stack with OpenMP host-to-PMCA offload within a power envelope of just 250 mW.
2023
2023 Design, Automation and Test in Europe Conference and Exhibition, DATE 2023
Antwerp, Belgium
17-19 April 2023
2023-
1
6
Valente, Luca; Tortorella, Yvan; Sinigaglia, Mattia; Tagliavini, Giuseppe; Capotondi, Alessandro; Benini, Luca; Rossi, Davide
HULK-V: a Heterogeneous Ultra-low-power Linux capable RISC-V SoC / Valente, Luca; Tortorella, Yvan; Sinigaglia, Mattia; Tagliavini, Giuseppe; Capotondi, Alessandro; Benini, Luca; Rossi, Davide. - 2023-:(2023), pp. 1-6. (Intervento presentato al convegno 2023 Design, Automation and Test in Europe Conference and Exhibition, DATE 2023 tenutosi a Antwerp, Belgium nel 17-19 April 2023) [10.23919/DATE56975.2023.10137252].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1309066
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