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NoC experiments#9

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petervdonovan wants to merge 34 commits intomainlf-lang/interpret:mainfrom noc-experimentslf-lang/interpret:noc-experimentsCopy head branch name to clipboard

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Commits on Dec 30, 2022

• Tentative start on NoC benchmarks.

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Commits on Dec 31, 2022

• Measure 11 cycles of latency by cheating.

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• store->nop->load -> wrong WB read. Bug?

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• Actually 35 cycles of latency it seems.

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• Adjust and comment on noc_latency_aligned.

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Commits on Jan 2, 2023

• Experiment with the NoC interface.

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• More tinkering.

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Commits on Jan 3, 2023

• Get a basic test working in simulation.

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• Failed attempt at synchronization.

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• Successful attempt at synchronization.

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• Factor more assembly out into macros.

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Commits on Jan 4, 2023

• First draft of the sender side of the protocol.

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• Initial attempt at a batch communication.

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• Refactor the assembly a bit.

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Commits on Jan 5, 2023

• More assembly refactoring.

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• First draft of receive words macro.

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• Receive a sequence of words correctly.

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• Send packets of length up to 64.

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• Add C API for read_n_words_and_print.

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• Add C API for broadcast_count.

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• Get broadcast to work from each core in turn.

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Commits on Jan 6, 2023

• Start extending the protocol.

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• Make small modifications.

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• Get the extended protocol to work properly.

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Commits on Jan 20, 2023

• Update programs/benchmarks/noc/latency_aligned/noc_latency_aligned.c

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Commits on Feb 4, 2023

• This sends 1023 words in 5867 cycles.

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• Optimize out a SYNC5.

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• Bugfix; move header-only lib to flexpret.

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• Start creating a BroadcastMemory program.

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• Assembly generation "hello world".

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• Start porting assembly to rvg.

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Commits on Feb 6, 2023

• Top-level definitions parse for BroadcastCount.

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• BroadcastCount assembly is generated.

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Commits on Feb 7, 2023

• Struggle to get assembly to work.

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