Francesco Minervini and Oscar Palomar Perez from BSC presented the RISC-V vector accelerator at RISC-V Summit 2021. Their talk was titled Vitruvius: An Area-Efficient RISC-V Decoupled Vector Accelerator for High Performance Computing.
Oscar Palomar from BSC presented energy-efficient vector architectures at the LEGaTO project workshop. Slides can be accessed here: https://www.slideshare.net/secret/hUCxifkvkFVyic