SEARCH
ISTC-CC NEWSLETTER
RESEARCH HIGHLIGHTS
Ling Liu's SC13 paper "Large Graph Processing Without the Overhead" featured by HPCwire.
ISTC-CC provides a listing of useful benchmarks for cloud computing.
Another list highlighting Open Source Software Releases.
Second GraphLab workshop should be even bigger than the first! GraphLab is a new programming framework for graph-style data analytics.
ISTC-CC Abstract
Raising the Bar for Using GPUs in Software Packet Processing
12th USENIX Symposium on Networked Systems Design and Implementation (NSDI'15), March 16-18, 2016 Santa Clara, CA.
Anuj Kalia, Dong Zhou, Michael Kaminsky*, and David G. Andersen
Carnegie Mellon University
*
Intel Labs
Numerous recent research efforts have explored the use of Graphics Processing Units (GPUs) as accelerators for software-based routing and packet handling applications, typically demonstrating throughput several times higher than using legacy code on the CPU alone.
In this paper, we explore a new hypothesis about such designs: for many such applications, the benefits arise less from the GPU hardware itself as from the expression of the problem in a language such as CUDA or OpenCL that facilitates memory latency hiding and vectorization through massive concurrency. We demonstrate that in several cases, after applying a similar style of optimization to algorithm implementations, a CPU-only implementation is, in fact, more resource efficient than the version running on the GPU. To “raise the bar” for future uses of GPUs in packet processing applications, we present and evaluate a preliminary language/compiler-based framework called G-Opt that can accelerate CPU-based packet handling programs by automatically hiding memory access latency.
FULL PAPER: pdf
