ramesesz commented on code in PR #1991:
URL: https://github.com/apache/systemds/pull/1991#discussion_r1468901002
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scripts/builtin/dist.dml:
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@@ -32,7 +32,8 @@
#
-----------------------------------------------------------------------------------------------
m_dist = function(Matrix[Double] X) return (Matrix[Double] Y) {
- G = X %*% t(X);
- Y = sqrt(-2 * G + outer(diag(G), t(diag(G)), "+"));
+ n = nrow(X)
+ s = rowSums(X^2)
+ Y = sqrt(-2 * X %*% t(X) + s + t(s))
Review Comment:
We already did a PR for the dist function, so is it better to revert the
changes of dist() for the current PR?
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