Where is the interaction between scheduler and data reading ？

[jiumeiliuxu]

When running the example \lonestar\tutorial_examples\SSSPPushSimple.cpp, the obim scheduler provides higher priority nodes. Where is this step involved in the code? I only saw push and pop functions in obim.h, but I didn't find where they were called.

[nicelhc13]

Those push/pop functions involve the logic your are mentioning. Push() pushes indices to thread local storagse based on user provided indexer (https://github.com/IntelligentSoftwareSystems/Galois/blob/58453dd834ae2e4c335bcfdbf16bcd379353455d/libgalois/include/galois/worklists/Obim.h#L364).

Pop() pops indices in FIFO order from the thread local storages (https://github.com/IntelligentSoftwareSystems/Galois/blob/58453dd834ae2e4c335bcfdbf16bcd379353455d/libgalois/include/galois/worklists/Obim.h#L401)

Based on this high level logic, several optimizations (like fast/slow paths) are applied. Please let me know if you have further questions.