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Posted to commits@mxnet.apache.org by GitBox <gi...@apache.org> on 2018/09/29 00:43:48 UTC
[GitHub] ZhennanQin commented on a change in pull request #12698: add a
tutorial for the subgraph API.
ZhennanQin commented on a change in pull request #12698: add a tutorial for the subgraph API.
URL: https://github.com/apache/incubator-mxnet/pull/12698#discussion_r221407832
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File path: docs/faq/subgraphAPI.md
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+##How to Integrate Backend Libraries to MXNet with the Subgraph API
+
+The subgraph API has been proposed and implemented as the default mechanism for integrating backend libraries to MXNet. The subgraph API is a very flexible interface. Although it was proposed as an integration mechanism, it has been used as a tool for manipulating NNVM graphs for graph-level optimizations, such as operator fusion.
+
+The subgraph API works as the following steps:
+
+* Search for particular patterns in a graph,
+* Group the operators/nodes with particular patterns into a subgraph and shrink the subgraph into a single node,
+* Put the subgraph node back to the original graph to replace the subgraph.
+
+The figure below illustrates the subgraph mechanism.
+
+
+
+The subgraph API allows the backend developers to customize the subgraph mechanism in two places:
+
+* Subgraph searching: define a subgraph selector to search for particular patterns in a computation graph,
Review comment:
use full comma.
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