Github user debasish83 commented on the pull request:
https://github.com/apache/spark/pull/1778#issuecomment-56396971
The code looks good for sparse input but for dense input is there any issue
with using activeIterator ? I understand that due to dimsum threshold check we
have to iterate over column and rows independently but if there is dense data,
is it possible for having a dimsum threshold check high up and use dense*dense
blas ?
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