Module tensor Roadmap

Tensor Module Roadmap

Current Status

Production-usable tensor runtime exists for tensor index management, hybrid bridge operation, and fingerprint graph benchmarked behavior; advanced structural and experimental surfaces continue hardening.

In Progress

• hardening tensor index/bridge behavior under concurrent workload pressure (Target: Q3 2026) [COMPLETED 2026-08-07]
• improving diagnostics consistency across tensor index, bridge, and graph operations (Target: Q3 2026) [COMPLETED 2026-08-07]
• stabilizing benchmark-backed release guardrails for tensor fingerprint and dedup paths (Target: Q3 2026) [COMPLETED 2026-08-07]
• federated and cross-shard tensor summaries (Completed 2026-07-06, Issue #5427)
• phase-5+ tensor integration closure: durable fingerprint persistence, distributed training coordinator, CUDA compression/routing path, and workflow SLO observability (Completed 2026-07-22)

Planned Features

Short-term (3-6 months)

• tighten deterministic behavior for tensor bridge and hybrid routing edge scenarios (Target: Q4 2026)
• expand stress coverage for fingerprint graph concurrent read/write patterns (Target: Q4 2026)
• improve operator-facing diagnostics for tensor graph export and replay incidents (Target: Q4 2026)

Mid-term (6-12 months)

• re-baseline p95/p99 envelopes for tensor query and graph operation hot paths (Target: Q1 2027)
• broaden benchmark depth for tensor index and dedup replay workload diversity (Target: Q1 2027)
• harden long-run reliability under sustained tensor graph mutation/query traffic (Target: Q1 2027)

Implementation Phases

Phase 1: Design / API Contract

• freeze tensor index/bridge/graph contracts for current major line (Completed 2026-07-29)
• define explicit error taxonomy for tensor incident classes (Completed 2026-07-29)

Phase 2: Core Implementation

• complete hardening for tensor index manager and bridge internals (Completed 2026-08-07)
• align fingerprint and dedup-adjacent behavior to bounded runtime contracts (Completed 2026-08-07)

Phase 3: Error Handling and Edge Cases

• standardize fail-safe behavior for bridge faults and graph export/replay errors (Completed 2026-08-07)
• unify diagnostics across index, bridge, and fingerprint incident classes (Completed 2026-08-07)

Phase 4: Tests

• expand focused regressions for tensor index/bridge and fingerprint edge scenarios (Completed 2026-07-29 — test_tensor_contract_hardening_focused.cpp, TNCH-01..TNCH-16)
• extend deterministic stress fixtures for concurrent tensor graph workloads (Completed 2026-07-29)

Phase 5: Performance and Hardening

• lock benchmark-backed release gates for tensor hot paths (Completed 2026-07-29 — bench_tensor_release_gates.cpp, TRNRG-01..TRNRG-06)
• validate p95/p99 and throughput behavior against release baselines (Completed 2026-08-07)

Phase 6: Documentation and Acceptance

• core tensor module docs aligned to source-verifiable behavior
• roadmap/future planning separated from historical changelog entries
• tensor_api_contract.h frozen contract header published (Completed 2026-07-29)

Production Readiness Checklist

• core tensor surfaces documented and source-verified
• module-level security and failure behavior documented
• benchmark mapping documented in performance expectations
• tensor_api_contract.h frozen contract header (Phase 1 closure, 2026-07-29)
• test_tensor_contract_hardening_focused.cpp — TNCH-01..TNCH-16 (Phase 4 closure, 2026-07-29)
• bench_tensor_release_gates.cpp — TRNRG-01..TRNRG-06 gate benchmarks (Phase 5 closure, 2026-07-29)
• remaining hardening tasks closed for index/bridge/graph edge paths (Phase 2 closure, 2026-08-07)
• release benchmark stabilization complete (Phase 5 closure, 2026-08-07)

Known Issues and Limitations

• runtime behavior depends on tensor workload shape and bridge/index configuration.
• selected advanced structural paths remain in active hardening status.
• benchmark depth should continue expanding for broader tensor workload patterns.

Breaking Changes

No breaking tensor contract planned. Any contract-breaking change requires migration notes and changelog entry before merge.

Program Execution Model — Wave Context

This module is a contributing module in the program-level Wave A → B → C → D execution model. It does not own a primary wave deliverable but must remain release_critical-green throughout all waves and must deliver Wave D operability improvements in Q1 2027. See [[../../ROADMAP.md|ROADMAP]] for the full wave model and exit criteria.

Wave D Contribution for tensor

• Deliver or validate distributed tracing, high-cardinality stress coverage, exporter reliability, and operator remediation hints as applicable to this module (Target: Q1 2027)
• Contribute to or validate long-duration soak test coverage for this module's primary paths (Target: Q1 2027)
• Ensure runbook coverage for operator-critical scenarios in this module (Target: Q1 2027)

Cross-Wave Requirements

• release_critical CI must remain green on develop throughout all waves (Target: ongoing)
• p95/p99 benchmarks must be refreshed on representative hardware before Wave D sign-off (Target: Q1 2027)
• No behavioral regression may be introduced into modules in Wave A/B/C scope from changes in this module.

Program-Level Success Criteria (contribution)

• This module's distributed/acceleration paths fail closed (Target: Q1 2027)
• Benchmark-backed p95/p99 baselines exist on representative hardware (Target: Q1 2027)
• Operator-critical paths have diagnostics, alerts, and runbooks (Target: Q1 2027)