Github user njayaram2 commented on the issue:
https://github.com/apache/madlib/pull/276
Thank you for the comments @iyerr3 , will make the changes you have
requested.
Having one IC file for each module makes sense, but on Greenplum, for some
modules the IC run time is still quite high. For example, if a module had 5 IC
files, where each ran for 10 seconds, the user would see IC progressing every
10 seconds. But if those were combined into one IC file, the progression would
happen after 50 seconds. It seemed a little odd (longer IC run times for some
modules in terms of user experience) when we were trying it out, so decided to
keep multiple IC files for such modules.
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