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chore(.machine_readable): convert 6a2 checkpoint files from Scheme to A2ML
Convert all .machine_readable/6a2/ files from Guile Scheme format to A2ML (a2ml) format. Preserves all data (project name, version, milestones, blockers, actions) in the A2ML TOML-like structure. Also fills in unfilled template placeholders ({{CURRENT_YEAR}}, {{AUTHOR}}, etc.) with concrete values. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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‎.machine_readable/6a2/ECOSYSTEM.a2ml‎

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;; SPDX-License-Identifier: PMPL-1.0-or-later
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;; Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
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;; ECOSYSTEM.a2ml — Ecosystem position for futharkiser
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# SPDX-License-Identifier: PMPL-1.0-or-later
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# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
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#
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# ECOSYSTEM.a2ml — Futharkiser ecosystem position
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[metadata]
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version = "0.1.0"
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last-updated = "2026-04-11"
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(ecosystem
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(version "0.1.0")
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(name "futharkiser")
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(type "tool")
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(purpose "Compile annotated array operations to GPU kernels via Futhark — identifies map/reduce/scan/scatter patterns, generates Futhark SOACs, compiles to OpenCL/CUDA/multicore GPU code")
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[project]
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name = "Futharkiser"
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purpose = "Compile annotated array operations to GPU kernels via Futhark — identifies map/reduce/scan/scatter patterns, generates Futhark SOACs, compiles to OpenCL/CUDA/multicore GPU code"
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role = "tool"
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(position-in-ecosystem
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(family "-iser acceleration frameworks")
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(meta-framework "iseriser")
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(relationship "sibling")
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(domain "GPU computing / array parallelism")
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(target-language "Futhark (by Troels Henriksen et al., DIKU Copenhagen)")
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(top-3 ("typedqliser" "chapeliser" "verisimiser")))
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[position-in-ecosystem]
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category = ""
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(related-projects
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(project "iseriser"
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(relationship "meta-framework")
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(description "Generates new -iser project scaffolding"))
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(project "typedqliser"
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(relationship "sibling-priority-1")
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(description "Formal type safety for any query language"))
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(project "chapeliser"
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(relationship "sibling-priority-2")
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(description "Chapel distributed computing acceleration"))
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(project "verisimiser"
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(relationship "sibling-priority-3")
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(description "VeriSimDB octad database augmentation"))
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(project "halideiser"
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(relationship "sibling — image processing overlap")
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(description "Halide image processing pipeline generation; overlaps with futharkiser for image convolutions but Halide is schedule-based while Futhark is functional"))
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(project "squeakwell"
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(relationship "sibling")
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(description "Database recovery via constraint propagation"))
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(project "proven"
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(relationship "dependency")
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(description "Shared Idris2 verified library"))
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(project "typell"
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(relationship "dependency")
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(description "Type theory engine")))
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(external-dependencies
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(project "futhark"
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(relationship "compilation-target")
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(url "https://futhark-lang.org")
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(description "Purely functional array language by DIKU Copenhagen — compiles to OpenCL/CUDA GPU kernels")
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(license "ISC"))))
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[related-projects]
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projects = [
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# No related projects recorded
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]

‎.machine_readable/6a2/META.a2ml‎

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;; SPDX-License-Identifier: PMPL-1.0-or-later
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;; Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
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;; META.a2ml — Meta-level information for futharkiser
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(meta
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(version "0.1.0")
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(last-updated "2026-03-21")
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(architecture-decisions
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(adr "001-iser-pattern"
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(status "accepted")
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(context "Need to make Futhark GPU programming accessible without steep learning curves")
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(decision "Use manifest-driven code generation: user describes WHAT array operations to accelerate, futharkiser generates Futhark SOACs and compiles to GPU kernels")
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(consequences "Users write zero Futhark/CUDA/OpenCL code; all complexity in the -iser"))
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(adr "002-abi-ffi-standard"
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(status "accepted")
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(context "Need verified interop between Rust CLI, Futhark GPU kernels, and user code")
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(decision "Idris2 ABI for formal proofs of parallelism safety and GPU buffer layouts; Zig FFI for C-ABI bridge to Futhark runtime")
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(consequences "Compile-time correctness guarantees for GPU memory management; zero runtime overhead from proofs"))
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(adr "003-futhark-soacs"
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(status "accepted")
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(context "Futhark's power comes from its second-order array combinators (SOACs)")
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(decision "Map source patterns to Futhark SOACs: map, reduce, scan, scatter, flatten/unflatten")
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(consequences "Covers the vast majority of data-parallel GPU workloads; Futhark compiler handles fusion and tiling"))
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(adr "004-gpu-backends"
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(status "accepted")
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(context "Different users have different GPU hardware; some have no GPU at all")
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(decision "Support all four Futhark backends: OpenCL (widest), CUDA (NVIDIA), multicore CPU, sequential C (debug)")
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(consequences "futharkiser works everywhere, from headless servers to developer laptops"))
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(adr "005-memory-space-tracking"
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(status "accepted")
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(context "GPU programming requires explicit management of host vs device memory")
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(decision "Track MemorySpace (Device/Host/Shared) in the ABI type system with transfer validity proofs")
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(consequences "Prevents invalid cross-boundary accesses at compile time; enables minimisation of host-device copies"))
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(adr "006-rsr-template"
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(status "accepted")
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(context "Need consistent project structure across 29+ -iser repos")
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(decision "All repos cloned from rsr-template-repo with full CI/CD and governance")
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(consequences "17 workflows, SECURITY.md, CONTRIBUTING, bot directives from day one")))
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(development-practices
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(language "Rust" (purpose "CLI and orchestration"))
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(language "Idris2" (purpose "ABI formal proofs — parallelism safety, GPU buffer layout verification"))
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(language "Zig" (purpose "FFI C-ABI bridge to Futhark-compiled GPU code"))
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(language "Futhark" (purpose "Generated target — compiled to OpenCL/CUDA GPU kernels"))
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(build-tool "cargo")
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(ci "GitHub Actions (17 workflows)"))
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(design-rationale
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(principle "Manifest-driven"
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(explanation "User intent captured in futharkiser.toml; all generation is deterministic and reproducible"))
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(principle "Formally verified bridges"
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(explanation "Idris2 dependent types prove parallelism safety (associativity of reduce operators, purity of map functions, array shape compatibility) at compile time"))
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(principle "Zero GPU expertise required"
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(explanation "Users never write Futhark, CUDA, or OpenCL — futharkiser generates everything from high-level array operation annotations"))
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(principle "GPU buffer layout proofs"
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(explanation "The ABI layer includes a GPUBufferDescriptor struct layout that is verified to match between Idris2 and Zig at compile time (32 bytes, 8-byte aligned)"))))
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# SPDX-License-Identifier: PMPL-1.0-or-later
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# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
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#
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# META.a2ml — Futharkiser meta-level information
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[metadata]
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version = "0.1.0"
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last-updated = "2026-03-21"
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[project-info]
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license = "PMPL-1.0-or-later"
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author = "Jonathan D.A. Jewell (hyperpolymath)"
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[architecture-decisions]
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decisions = [
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# No ADRs recorded
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]
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[development-practices]
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versioning = "SemVer"
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documentation = "AsciiDoc"
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build-tool = "just"
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[maintenance-axes]
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scoping-first = true
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axis-1 = "must > intend > like"
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axis-2 = "corrective > adaptive > perfective"
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axis-3 = "systems > compliance > effects"

‎.machine_readable/6a2/STATE.a2ml‎

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;; SPDX-License-Identifier: PMPL-1.0-or-later
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;; Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
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;; STATE.a2ml — Current project state for futharkiser
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# SPDX-License-Identifier: PMPL-1.0-or-later
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# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
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#
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# STATE.a2ml — Futharkiser project state
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[metadata]
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project = "futharkiser"
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version = "0.1.0"
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last-updated = "2026-03-21"
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status = "active"
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session = "converted from scheme — 2026-04-11"
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(state
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(metadata
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(version "0.1.0")
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(last-updated "2026-03-21")
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(author "Jonathan D.A. Jewell"))
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[project-context]
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name = "Futharkiser"
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purpose = """Compile annotated array operations to GPU kernels via Futhark"""
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completion-percentage = 45
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(project-context
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(name "futharkiser")
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(description "Compile annotated array operations to GPU kernels via Futhark")
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(status "alpha")
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(priority "medium")
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(ecosystem "-iser family (https://github.com/hyperpolymath/iseriser)"))
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[position]
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phase = "phase-1-complete" # design | implementation | testing | maintenance | archived
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maturity = "experimental" # experimental | alpha | beta | production | lts
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(current-position
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(phase "phase-1-complete")
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(completion-percentage 45)
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(milestone "Phase 1 complete — pattern detection, Futhark codegen, build generator")
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(what-changed
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"2026-03-21: Phase 1 complete. Pattern detection, Futhark codegen, build generator, GPU buffer management stubs, bespoke manifest parsing. Integration tests passing."))
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[route-to-mvp]
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milestones = [
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# No milestones recorded
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]
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(route-to-mvp
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(step 1 "DONE — Pattern detection for map/reduce/scan/scatter")
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(step 2 "DONE — Futhark codegen generating .fut files")
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(step 3 "DONE — Build generator for opencl/cuda/multicore/c backends")
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(step 4 "DONE — GPU buffer management stubs via Zig FFI")
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(step 5 "DONE — Bespoke manifest parsing and CLI")
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(step 6 "TODO — End-to-end GPU kernel compilation and execution")
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(step 7 "TODO — Idris2 proofs for parallelism safety (associativity, purity)")
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(step 8 "TODO — Benchmarks against hand-written CUDA/OpenCL")
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(step 9 "TODO — PanLL panel and BoJ cartridge integration"))
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[blockers-and-issues]
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issues = [
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"Futhark compiler not installed on dev machine — .fut output verified by structure",
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]
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(blockers-and-issues
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(note "Futhark compiler not installed on dev machine — .fut output verified by structure")
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(note "GPU testing requires OpenCL/CUDA runtime"))
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[critical-next-actions]
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actions = [
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"Install Futhark compiler and run end-to-end GPU test",
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"Write Idris2 proofs for parallelism safety properties",
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"Benchmark against hand-written CUDA for vector addition",
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]
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(critical-next-actions
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(action "Install Futhark compiler and run end-to-end GPU test")
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(action "Write Idris2 proofs for parallelism safety properties")
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(action "Benchmark against hand-written CUDA for vector addition")))
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[maintenance-status]
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last-run-utc = "2026-03-21T00:00:00Z"
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last-result = "unknown" # unknown | pass | warn | fail

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