Hello!
I'm Jaehyun Lim, a Master's student in Electrical and Computer Engineering at Carnegie Mellon University.
About Me
My research interests are in energy-efficient computer architectures and domain-specific compilers. I am currently working at the abstract lab with Prof. Brandon Lucia and Prof. Olivia Hsu on spatial dataflow architectures.
In my free time, I like to make ceramics, sing, and do graphic design.
Projects
Sniff Pittsburgh
Python, C, LoRaWAN, Flask, HTML, CSS, Docker • Dec 2025
We created a low-cost, mobile air quality monitoring system to be mounted on Pittsburgh's bikeshare bicycles. We won first runner-up to the David Tuma Undergraduate Project Award, the ECE department's award for most outstanding laboratory project of the semester.
MLIR Compiler
C++, MLIR • June 2025
Loxtite is a toy scripting language based on Robert Nystrom's Lox language. I implemented a compiler for Loxtite using MLIR as an exercise to learn how compilers work, and to do research in domain-specific compilers.
SUBLEQ Processor
SystemVerilog • Jan 2025
For the 2025 iteration of Build18, CMU's hardware hackathan, my team designed and built a SUBLEQ (Subtract and Branch if Less than or Equal to Zero) processor on an FPGA.
ATC on a Chip
SystemVerilog, cocoTB, Verilator, Yosys, OpenLane • May 2024
As part of Prof. Bill Nace's open source tapeout course, I implemented a simplified air traffic controller (ATC) system on a chip. The chip was fabricated on a 130nm process through SkyWater Technology's open source PDK.
Publications
Nothing yet, stay tuned!
Mapo Tofu
A ranked list of memorable mapo tofu I've had in my life.
| Rank | Restaurant | Location |
|---|---|---|
| 🥇 1 | Szechuan Mountain House - East Village | New York, NY |
| 🥈 2 | Sichuan Gourmet | Pittsburgh, PA |
| 🥉 3 | Chiko | Brooklyn, NY |
| 4 | Pepper Space | Pittsburgh, PA |
| 5 | China Rose | Freeport, ME |