What is the significance of the KV Store in MXNet

This recipe explains what is the significance of the KV Store in MXNet

Recipe Objective: What is the significance of the KV Store in MXNet?

This recipe explains the significance of the KV store in MXNet is.

Step 1: Importing library

Let us first import the necessary libraries. We'll import mxnet and ndarray(nd alias) from mxnet.

import mxnet as mx
from mxnet import nd

Step 2: Key-Value Stores

To demonstrate the use of the KV store, we have initialized a pair and then pulled out the values. KV store is used to share data. For a previously defined key, we can push a new value with the same shape. The KV store adds up all the values and pushes the average value for multiple values in a single key.

kv = mx.kv.create('local')
kv.init(11, y*4)
kv.pull(11, out = y)
y.asnumpy()
def func(k, input, z):
    print("update on key: %d" % k)
    z += input * 2
kv._set_updater(func)
kv.pull(11, out=y)
y.asnumpy()

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