SimpleMachines

About SimpleMachines

SimpleMachines, Inc. (SMI) was a semiconductor company focused on artificial intelligence, founded in 2017 with roots in academic research from the University of Wisconsin-Madison. The founding team included Karu Sankaralingam, who served as CEO and CTO, alongside Jeff Thomas, Vinay Gangadhar, Preyash Shah, and Vijay Thiruvengadam. The company's creation was the culmination of a decade of research led by Sankaralingam in his role as a computer science professor, which transitioned from the university's Vertical Research group into a commercial venture.

The core of SimpleMachines' business was the development of a Composable Computing Platform, designed to accelerate AI and other data-intensive applications. Its main product was the 'Mozart' chip, a 16-nanometer design manufactured by TSMC, which was engineered to be highly programmable and flexible. This chip was delivered to clients through a PCIe card called Accelerando and a hosted cloud service named Symphony Cloud Service. The company's business model targeted enterprise clients in sectors such as public datacenters, network security, finance, and insurance, offering them a way to significantly boost application performance by reconfiguring the hardware on-the-fly to match specific software workloads. This approach aimed to provide the performance of custom-built processors while retaining the versatility of a general-purpose platform.

The company's key technological differentiator was its 'Reuse Exposed Dataflow' processor architecture, which combined data reuse and dataflow principles at the instruction set level. This allowed the Mozart chip to handle a wide variety of AI tasks—including recommendation engines, speech processing, and image detection—simultaneously on a single chip, a departure from more specialized AI accelerators. The platform integrated with standard AI frameworks like TensorFlow and offered APIs for C/C++ and Python, emphasizing software maturity and ease of use for developers. Despite taping out its first chip in March 2020 and securing approximately $25 million in venture capital, SimpleMachines ceased operations in early 2021. The company faced challenges gaining sufficient business traction against market leaders like NVIDIA and Google, whose technologies proved more attractive for the market's needs at the time.