With strong initial reviews, the HiFive Premier P550 Development Boards with pre-installed Ubuntu are in stock and available for purchase at Arrow.com. First launched in October, the Yocto-based Early Access edition of the HiFive Premier P550 sold out rapidly as developers eagerly embraced it to test their RISC-V designs on real silicon. Today, we’re excited to announce the general availability of the Premier P550 in both 16GB and 32GB configurations. This release offers even more flexibility and power, featuring pre-installed Ubuntu 24.04 to help developers make the most of their RISC-V projects.

In this blog, we’ll begin by introducing XNNPACK and exploring its current status on RISC-V platforms. Next, to bridge the technical gap for contributors, we will provide a step-by-step guide on integrating RVV-optimized microkernels into XNNPACK, using F32-GEMM (single-precision floating-point general matrix multiplication) as a practical example. Finally, we will highlight the performance improvements achieved through these optimizations.