Below you will find pages that utilize the taxonomy term “SPMD”
SPMDWhy a Reduction Loop Tells the Story: SPMD vs Per-Op SIMD Intrinsics
A side-by-side disassembly of the same AVX2 reduction reveals a structural advantage of whole-loop vectorization over per-operation intrinsics
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SPMDWe Built Cross-Lane SIMD Primitives. None of Them Helped.
The most important negative result from our SPMD-for-Go proof of concept: explicit shuffles and rotations lost to compiler pattern detection on idiomatic Go
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SPMDHow the Compiler Knows Your Load Is Contiguous
The most important backend optimization in SPMD: recognizing contiguous memory access through ChangeType and BinOp chains
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SPMD16 Bytes That Saved a Thousand Branches
The cheapest optimization in our SPMD proof of concept: a WASM linear memory guard zone for safe vector overreads
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SPMDByte Iteration at 32 Lanes: The Decomposed Index Path
How to iterate a []byte on AVX2 without drowning in index-register pressure
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SPMDPattern Matching Outperformed Hand-Written SIMD
How compiler pattern detection on idiomatic Go outperformed explicit cross-lane SIMD builtins in our SPMD proof of concept
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SPMDLoop Peeling: Where Most of the Speed Comes From
How SSA-level loop peeling enables the all-ones mask fast path that delivers ~2x of SPMD benchmark wins
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SPMDHow SPMD Lives in the Compiler: Lessons from Building It
The mask-stack detour, predicated SSA, and why SPMD has to live at the heart of the compiler
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SPMDWriting SPMD Go: A Practical Guide
How to think about uniform vs varying, write go for loops, use reductions, and avoid the common pitfalls
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SPMDSPMD for Go: What If Your Loops Were Just Faster?
A proof of concept for language-level data parallelism in Go, with live WASM demos and real benchmark results
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SPMDCross-Lane Communication: When Lanes Need to Talk
Understanding why and how SPMD programs coordinate data between execution lanes through base64 decoding
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SPMDWhat if? Practical parallel data.
Using a hypothetical `go for` construct to implement a variety of string operation
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SPMDData Parallelism: simpler solution for Golang?
Warning Historical note. This post predates the actual TinyGo SPMD compiler. It is a thought experiment from when the design space was still open. The …
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