NS-3 Simulator for SRNIC (NSDI'23)

This is the simulation code for NSDI'23 paper:

SRNIC: A Scalable Architecture for RDMA NICs.

This repository is developed based on HPCC simulation code (base repo). The original HPCC ns3 code is lossless. We integrate an IRN-like selective retransmission into this code. In addition, we add a timeout checking to retransmit a long-term non-acked packet to handle the last packet loss event.

Note: We didn't simulate the SRNIC's SW-HW co-design architecture here; we evaluate it in testbed experiments.

Quick Start

You can write your experiment setting in run.sh, and use myrun.py to simultaneously start them. It is run.py that physically compiles and runs this repo.

$ cd simulation
$ python myrun.py

Modifications

simulation

The modified src code files compared with the base repo mainly consist of below:

simulation/src/point-to-point/rdma-queue-pair.cc
simulation/src/point-to-point/switch-node.cc
simulation/src/point-to-point/switch-mmu.cc
simulation/src/point-to-point/rdma-hw.cc
simulation/src/point-to-point/qbb-net-device.cc

analysis

You can use the fct_analysis.py to analyze the result files in simulation/mix.

traffic_gen

You can use gene.sh to generate workload files for specific topology and traffic distribution. We have provided the CacheFollower distribution.

HKUST-SING/srnic-simulation-public