Github user loachli commented on the pull request:
https://github.com/apache/spark/pull/1290#issuecomment-103867844
@avulanov I did some test, the results is as follows
Machines:
3 machine, 1 master, 2 slave;
Each machine: 24 cores with Hyper threading (cpu MHz: 2099.943), 96G RAM
Spark setting:
spark.executor.memory=40G
spark.cores.max=40
Data size:
mnist dataset:
train data count: 60000
test data count: 10000
Topology | iterations| tol | train time(s) | accuracy
------------ | ------------- | ------------- | ------------- | -------------
(784, 10) | 40 | 1e-4 | 35 | 0.9179
(784, 100,10) | 40 | 1e-4 | 127 | 0.7587
(784, 100,10) | 120 | 1e-4 | 341 | 0.7948
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