Fix reduce cycles and nodes in fork joins

• Fix reduce cycles and nodes in fork joins analyses (weren't previously considering nodes in reduce cycle but not dependent on thread ID).
• Clean up juno_matmul schedule.
• @xrouth2, this may have been causing the weird GCM issues you were running into?

requested review from @xrouth2

assigned to @rarbore2

enabled an automatic merge when all merge checks for 0fd0b6e8 pass

aborted the automatic merge because the source branch was updated. Learn more.

added 1 commit

• 02e4288b - another fix...

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merged

mentioned in commit f0eaad15