optimize_blockwise(graph, keys=())
For operations that have multiple Blockwise operations one after the other, like x.T + 123
we can fuse these into a single Blockwise operation. This happens before any actual tasks are generated, and so can reduce overhead.
This finds groups of Blockwise operations that can be safely fused, and then passes them to rewrite_blockwise
for rewriting.
The keys of all outputs of all collections. Used to make sure that we don't fuse a layer needed by an output
High level optimization of stacked Blockwise layers
The following pages refer to to this document either explicitly or contain code examples using this.
dask.blockwise.rewrite_blockwise
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