Comments (6)
Thanks for your interest! Our evaluation was on an earlier private version of the Alibaba's public trace (see footnote 3 in the paper). In principle, we can also test on the current version. You just need to load the job DAGs from the trace by specifying the task durations of each stage https://github.com/hongzimao/decima-sim/blob/master/spark_env/job_generator.py#L37-L45 (the real world trace might not have it, but we measure the average task runtime with different degree of parallelism, see section 6.2 point 3 in the paper) and follow the trace for inter job arrival time (TPC-H uses a Poisson arrival https://github.com/hongzimao/decima-sim/blob/master/spark_env/job_generator.py#L129). Hope this helps?
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I am trying to use the Decima framework to train a scheduler to schedule Distributed DL training jobs on Kubernetes. Thanks for your reply. It works for me.
There is one last question: when you evaluate Alibaba private trace, do you use Poisson distribution for arrival interval or get the real distribution from the trace? I intend to get the real distribution but not sure if it is possible. Thus really appreciate if you could give me some advice.
Thanks.
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The trace should provide the arrival time of each job. We replayed the trace (replace the Poisson inter arrival time with actual time) in our evaluation.
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Gotcha, Thanks a lot.
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Optimizing distributed DL training with Kubernetes sounds very interesting! Please keep us updated for your progress. One of my colleagues recently also applied a similar graph neural network technique to Tensorflow device placement problem. The paper was just accepted to NIPS: https://arxiv.org/pdf/1906.08879.pdf if you are interested.
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Yeah I have read the paper about Placeto. I am not very familiar with GNN but the result is really promising.
Distributed DL training jobs have some different characteristics from DAG jobs. [1] Not sure if RL + GNN or RNN approach has great improvement in this scenario. But of course, if we have any progress, I can share here.
[1] https://arxiv.org/pdf/1901.05758.pdf
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Related Issues (20)
- some questions of your code HOT 9
- The model training issue with reward function optimizing makespan HOT 14
- Updating Tensorflow 1.14 to 2 HOT 3
- About nodes information HOT 1
- A question about the result HOT 5
- some question about the main idea
- Some questions about Decima's GNN HOT 2
- A question about actor_network HOT 2
- Questions about the input vector HOT 2
- What are the versions of the project pkg requirement? HOT 6
- Question about multi resource training. HOT 1
- when calculating the reward whether the locality of the data to the core is taken into account? in other word,the data transfer between different nodes may significant affect the reward calculation.
- How to integrate Decima in Spark
- About the model of generation HOT 1
- Question about .npy files
- Some questions about executor
- Code for Learning State Representation
- Could u plz tell me the piplist of this code? HOT 2
- Bug in determining `done` in `env.step`?
- PyTorch Implementation of Decima Available!
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