Baunsgaard opened a new pull request, #1952:
URL: https://github.com/apache/systemds/pull/1952
Right side Ultra sparse optimizations goring from 8.525 to 4.575
on 100 repetitions of
100k by 1000 dense %*% 1000 by 1000 with 30 non zeros.
```
sh = 1000
X = rand(rows = 100000, cols = sh, min = 1, max = 1, sparsity = 0.5, seed =
132);
nCells = ncol(X) * sh
fortySP = 30 / nCells
Y = rand(rows = ncol(X), cols = sh, min = 1, max = 1, sparsity=fortySP,
seed=132)
print(sum(Y))
for( i in 1 : 100){
Z = X %*% Y
}
print(sum(Z))
```
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