Publications

In Int’l Symp. on High-Performance Computer Architecture (HPCA), 2020

In Int’l Symp. of Field-Programmable Custom Computing Machines (FCCM), 2019

In FPGA, 2018

In FPGA, 2017

In IEEE Comm Letters, 2013

Talks

Tensaurus: A Versatile Accelerator for Mixed Sparse-Dense Tensor Computations

Tensor factorizations are powerful tools in many machine learning and data analytics applications. Tensors are often sparse, which makes sparse tensor factorizations memory bound. In this talk, I present a hardware accelerator, Tensaurus, that can accelerate both dense and sparse tensor factorizations. We co-design the hardware and a sparse storage format, which allows accessing the sparse data in vectorized and streaming fashion and maximizes the utilization of the memory bandwidth. We also extract a common computation pattern that is found in numerous matrix and tensor operations and implement it in the hardware.

T2S-Tensor: Productively Generating High-Performance Spatial Hardware for Dense Tensor Computations

We present a language and compilation framework for productively generating high-performance systolic arrays for dense tensor kernels on spatial architectures, including FPGAs and CGRAs. It decouples a functional specification from a spatial mapping, allowing programmers to quickly explore various spatial optimizations for the same function. The actual implementation of these optimizations is left to a compiler. Thus, productivity and performance are achieved at the same time.

Projects

Pointer-Chase Prefetcher

Pointer-Chase Prefetcher for Linked Data Structures

Teaching

I have been TA for following courses at Cornell University:

  • CS3420: Embedded Systems