poncos

Poor Man's Co-Scheduler

Poncos is a simple scheduler that applies co-scheduling of applications based on main memory bandwidth utilization. It supports multiple nodes

Requirements

The source code in this repository is essential self-contained and all unusual dependencies are automatically built when compiling poncos. Nonetheless, you require:

• A compiler supporting C++14.
• CMake (version >= 3.1)

Setup

To use poncos you must:

1. first install mmbwmon on all nodes you plan to use for scheduling.
2. start mmbwmon on all nodes while they are idle. Wait until the initialization phase of mmbwmon has completed.
3. if you are not using a SandyBridge EP system, adjust the file system_config/sandybridge_EP.cpp to match your system (or create a new one and add a new build target to CMake).
4. compile poncos as every other CMake based project.
5. create a machine-file containing all hostnames of the nodes you want to use for your applications. Use linebreaks to separate the hostnames (i.e. one hostname per line).
6. create a queue file containing one application command line per line (see examples).
7. run the poncos binary with --help and read the options on how to pass the machine-file and queue.