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Synergy : Looking Beyond GPUs for DNN Scheduling on Multi-Tenant Clusters

This repository contains the source code implementation of the OSDI paper "Looking Beyond GPUs for DNN Scheduling on Multi-Tenant Clusters". This work was done as part of Microsoft Research's Project Fiddle. This source code is available under the MIT License.

Directory Structure

simulator

This contains code for the Synergy scheduler, that includes various scheduling policies (scheduler/), in a simulator harness (runner.py), and a deployment module using gRPC(deployment/).

src

This contains the src code for offline profiling alongside a detailed README that discusses how to use it.

Setup

Option 1

Use the docker image jayashreemohan/synergy_dali.

- docker pull jayashreemohan/synergy_dali:latest
- nvidia-docker run --ipc=host --mount src=/,target=/datadrive/,type=bind -it --rm --network=host --privileged jayashreemohan/synergy_dali:latest /bin/bash
- git clone https://github.com/msr-fiddle/synergy.git
- cd synergy/simulator/deployment
- make

Now skip to Getting Started

Option 2 : Building from scratch

Please install the following dependencies before proceeding. Tested on Python 3.6.8 and 3.8.10

Setup profiler

- cd src
- cd profiler; ./prereq.sh; cd ..

Setup simulator

- cd simulator/deployment
- ./upgrade_pip.sh
- pip install -r requirements.txt
- make

Setup iterator

Synergy uses its own PyTorch iterator that is built on top of DALI & CoorDL. So before you run any profiling experiment, or deployment in a real GPU cluster, build a docker container with this iterator support by following these steps. Note that this is not required to run the simulation experiments.

- git clone https://github.com/jayashreemohan29/Synergy-CoorDL.git
- cd Synergy-CoorDL
- git submodule sync --recursive && git submodule update --init --recursive
- git checkout iterator_chk
- cd docker
- CREATE_RUNNER="YES" ./build.sh

This will create a docker container tagged nvidia/dali:py36_cu10.run

Alternately you could use the docker image hosted here using :

docker pull jayashreemohan/synergy_dali:latest

Getting Started

The simplest way to get started with Synergy, is to test it out in a simulated cluster (can be run on a local machine without GPUs, or any specific hardware requirement). The test harness is the runner.py file. For instance, to evaluate a FIFO scheduling policy using the default GPU-proportional allocation and synergy's tune based allocation, run the following command:

python runner.py --cluster_job_log trace/cluster_job_log --plot  2>&1 | tee  out-deploy

Other options supported by the test harness are:

  • --cluster_job_log : The Philly trace
  • --plot : Plot the CDF and JCT of runs
  • --multigpu : Allow multi-GPU jobs in the mix
  • --no_exp : Disable the exponential arrival distribution
  • --philly_arrival : Use arrival information as is from the Philly trace (must also use --no_exp)
  • --rec_trace : Record the generated trace
  • --replay_trace : Replay a previously recorded trace
  • --config_file : Cluster configuration, default of 128GPUs in configs/default_cluster.ini
  • --no_simulate : Run it on a real GPU cluster
  • schedulers : List of schedulers to run, for eg., ['FIFO+fair' , 'FIFO+tune']
  • jobs_per_hour : List of different arrival rates, for eg., np.arange(1.0, 10, 1)
  • class split : Split of <vision. language, speech> models, for eg., class_split=[(20,70,10)]

Other detailed run instructions are in scheduler and profiler

For more detailed instructions on how to reproduce results from the OSDI paper, see here.