Primitive Idea for Access History
•Serial
• read(l), write(l)
•Simplest parallel program without nested parallelism
• Two parallel read records, one write record
•Language structure like Cilk
• read: max level of parallelism, one write record
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•Q: Is it possible to keep only two read records for each shared location in Cilk Parallel Nondeterminator? • Keep two parallel read records with highest level of LCA in parent child spawn tree.