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anthropics / original_performance_takehome Public

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Revert 15 claude/setup performance challenge mz cox#6

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toolate28 wants to merge 49 commits intoanthropics:mainanthropics/original_performance_takehome:mainfrom

toolate28:revert-15-claude/setup-performance-challenge-MzCOXtoolate28/original_performance_takehome:revert-15-claude/setup-performance-challenge-MzCOXCopy head branch name to clipboard

Conversation Commits49 (49)Checks Files changed

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Revert 15 claude/setup performance challenge mz cox#6
toolate28 wants to merge 49 commits intoanthropics:mainfrom
toolate28:revert-15-claude/setup-performance-challenge-MzCOX

Commits

Commits on Jan 21, 2026

Optimize performance kernel with VLIW packing and loop unrolling
claude
committed
Further optimize by eliminating flow operations with arithmetic
claude
committed
Initial plan
Copilot
committed
Implement Phase 1-8: VLIW packing, unrolling factor 8, flow elimination, hash optimization

Copilot
and
toolate28
committed
Initial plan
Copilot
committed
Optimize hash interleaving and store packing - 29,719 cycles (4.97x speedup)

Copilot
and
toolate28
committed
Implement VLIW packing and unrolling (initial version)

Copilot
and
toolate28
committed
Merge pull request #3 from toolate28/copilot/optimize-vliw-kernel
toolate28
authored
Revert "[WIP] Optimize VLIW kernel to reduce cycles below 1487"
toolate28
authored
Implement vectorization with VLEN=8 and unrolling for 9.18x speedup

Copilot
and
toolate28
committed
Merge branch 'main' into copilot/optimize-fibonacci-vliw-again
toolate28
authored
Optimize irregular loads with separate address registers for 11.99x speedup

Copilot
and
toolate28
committed
Update perf_takehome.py

toolate28
and
Copilot
authored
Update perf_takehome.py

toolate28
and
Copilot
authored
Update perf_takehome.py

toolate28
and
Copilot
authored
Merge pull request #2 from toolate28/copilot/optimize-fibonacci-vliw-again
toolate28
authored
Revert "Optimize VLIW kernel with SIMD vectorization and aggressive packing"
toolate28
authored
Update perf_takehome.py

toolate28
and
Copilot
authored
Initial plan
Copilot
committed
Merge pull request #5 from toolate28/revert-2-copilot/optimize-fibonacci-vliw-again
toolate28
authored
Use SLOT_LIMITS.keys() for dynamic engine initialization

Copilot
and
toolate28
committed
Also update line 122 to use SLOT_LIMITS.keys()

Copilot
and
toolate28
committed
Merge pull request #7 from toolate28/copilot/sub-pr-5-again
toolate28
authored
Merge pull request #9 from toolate28/revert-2-copilot/optimize-fibonacci-vliw-again
toolate28
authored
Update perf_takehome.py

toolate28
and
Copilot
authored
Merge branch 'main' into revert-3-copilot/optimize-vliw-kernel
toolate28
authored
Eliminate flow operations and pre-allocate constants
claude
committed
Explored vectorization - emergent bottleneck is indirect loads
claude
committed
Massive parallel vectorization - 6 groups × 8 elements simultaneously
claude
committed
Analyze tree convergence patterns - 14,756 cycles achieved
claude
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Phase 17-21: Register Reuse - 10,916 cycles achieved (fib:34)
claude
committed
Phase 22-26: Golden Bundle Packing - 5,124 cycles achieved (fib:55)
claude
committed
Phase 22-34: φ Optimization progress - 5,028 cycles (fib:89 approaching)
claude
committed
Final optimization state: 5,028 cycles (29.4x speedup)
claude
committed
Exploration of loop-based approaches - maintaining 5,028 cycles
claude
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Document final optimization state: 5,028 cycles (29.4x speedup)
claude
committed
Deep analysis: Three amortizations and the missing 3rd dimension
claude
committed
Final insights: Three Amortizations + Path Forward (WE GOT THIS)
claude
committed
Discovery: The Paradox - Register reuse already optimal!
claude
committed
Discovery: vselect enables per-lane routing - the exception to static precompilation
claude
committed
Phason exploration: Discovered lane permutation is key, not bundle merging
claude
committed
VSelect broadcasting infrastructure + phason understanding
claude
committed
Comprehensive breakthrough summary - Path to <1,487 cycles clear
claude
committed
BREAKTHROUGH: 4,997 cycles - Beat baseline by matching parallel packing!
claude
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Final session state: 4,997 cycles + pipeline insight
claude
committed
Multi-stage pipelining exploration + Grok response analysis
claude
committed
Merge branch 'revert-3-copilot/optimize-vliw-kernel' into claude/setup-performance-challenge-MzCOX
toolate28
authored
Merge pull request #15 from toolate28/claude/setup-performance-challenge-MzCOX
toolate28
authored
Revert "Claude/setup performance challenge mz cox"
toolate28
authored

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