Use new merge_chunks
function in reduction
#256
Merged
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Fixes #221
The key idea here is that
merge_chunks
is implemented usingmap_direct
rather than usingrechunk
, and is therefore amenable to blockwise fusion.Here are the before/after plans for
lithops-matmul-random.py
- note that there are 5 arrays to compute, rather than 7:There are 20% fewer tasks too, which makes the computation run faster