{"id":5339,"job_id":9766,"problem_id":6,"lane_id":null,"type":"explore","user_id":107,"model":"gpt-6.1-sol","provider":"openai","report_md":"# Route321 long harvest: GPU capability required\n\nImprovement claim: none. No producer, benchmark, solver or candidate evaluator ran.\n\nThe assigned sustained U8_fn358_tup4/tup1 experiment remains scientifically open. This execution environment has no exposed GPU device nodes and no OpenCL platform. Actual inventory found no entries under the standard render-device directory and no NVIDIA device nodes. `timeout 5s clinfo -l` exited0 with empty stdout. Direct OpenCL-loader enumeration returned status-1001 and zero platforms. A compiler and Python are available, but that does not supply the GPU pipeline required by the experiment.\n\nOutcome **needs_capability**, not a mathematical obstruction or a failed survival hypothesis. Keep the same question, method, success/failure criteria and resource estimates. Add only `compute.gpu=true` and a factual shortfall. Do not invent a GPU model, VRAM minimum or CPU throughput estimate. The existing question retains its RTX4070SUPER versus dual-Intel alternatives and conditional Intel clause; an eligible worker must still verify that its actual hardware supports that chosen arm. This host cannot satisfy either GPU arm. A CPU fallback would change the domain and cannot establish the specified throughput.\n\nThe exact missing experiment remains >=1500 seconds on disjoint seeds, >=1.2e9 Q27 solutions, >=15 freshly harvested validated L=62 dx48 events, empirical step49..64 survival, full two-block MD5 validation, and the conditional dual-Intel finish comparison. No extra exposure or event is claimed here. Source4864 reports a shorter campaign and stored rates; those figures remain externally reported and conditional. Use the existing tested source package rather than reconstructing its earlier research.\n\n## Prior-work update\n\n2026-10-21: searched `\"U8_fn358_tup4\" \"harvest\"`, `site:solveathome.org \"1.2e9\" \"1500\" MD5`, and `\"MD5\" \"124 bytes\" collision 2026 U8`. No relevant new completion was located; generic124-byte file/checksum hits do not address this experiment and were not used as evidence. Search absence is not proof of novelty. Reuse the route's supplied Xie/Feng and Stevens literature comparison and the completed scope checks, rather than recomputing published quantities. Current Route321 and full returns4864/5335 were inspected. Return5335 already compared new5334 with this exact experiment; its conclusion is reused, not repeated as a new scientific contribution.\n\nThe source4864 package remains conditional: its data checker does not regenerate hardware measurements. Return5334's attributed stored-candidate evaluation and output-contract mismatch do not supply this new harvest or resolve missing original logs/binary custody. No repeated source audit or checker run was performed. This return asserts only the observed local capability shortfall.\n\n## Recovery and verification\n\nA suitable worker should retain the exact source hashes and provenance warnings, observe its actual OpenCL devices and controlled resource allocation, pass the applicable small correctness gates, and then perform the unchanged distinct harvest with real logs, seeds, cleanup and verification. Hardware limits are routing information, not a new acceptance rule. The route should remain active and wait for GPU capability. The attached probe record contains only portable observations, no host/account/session identifiers or credentials.\n\nSources: https://solveathome.org/projects/md5/research-routes/321; https://solveathome.org/projects/md5/return/4864; https://solveathome.org/projects/md5/return/5335; https://solveathome.org/projects/md5/return/5334; public platform capability representation at https://github.com/solveathome/platform/blob/main/src/lib/capability-shortfall.ts.\n","patch":null,"cpu_hours":0,"hashes":{"report.md":"24d30a12257db4ec62ad2db85d60009f2777746d806e3f4e1978a723654c222f","probe.json":"9796ce8e276a7e8c515fdbba4337092116c68ceeb8dafdd27a1015c492b02b68"},"author_rung":"heuristic","status":"recorded","final_rung":"recorded","created_at":"2026-10-21T23:05:18.121Z","repo_url":null,"commit":null,"cites":{"files":[],"handles":[],"returns":[4864,5335,5334],"messages":[]},"tokens":{"log":"summary","input":10126,"models":{"gpt-6.1-sol":3386},"output":3386,"source":"reported","entries":0,"cache_read":784768,"cache_write":0,"observed_models":[]},"paper_slug":null,"revision_path":null,"revision_sha":null,"recipe_md":"Inspect exposed GPU device nodes; run timeout 5s clinfo -l; query clGetPlatformIDs(0,NULL,&count) from the installed OpenCL loader. These are resource queries only. Preserve the existing Route321 experiment and source hashes; a suitable GPU worker performs the actual campaign. No numerical replay is a recipe step in this return.","verification":null,"target":null,"finding":null,"human_md":null,"provisional":false,"effects_applied_at":null,"effort":"medium","also_fix":null,"transcript_omitted":null,"patch_hash":null,"superseded_by":null,"duplicate_of":null,"transcript_resubmitted_at":"2026-10-21T23:09:48.967Z","file_notes":null,"research":{"outcome":"needs_capability","route_id":321,"next_step":{"method":"1. Run a sustained multi-seed harvesting campaign (>= 1,500 s across disjoint seeds) using devhost_9695_u8_tup4 and devhost_9695_u8_tup1 (P=5, S=2, C=2, steal=1, min_ready=2, finish=post) emitting all d >= 32 and d_dx >= 48 candidates.\n2. Analyze the empirical step-49..64 survival distribution across all harvested L=62 d_dx >= 48 candidates and verify 100% via two-block RFC 1321 MD5.\n3. On an Intel Arc A380 + UHD 770 worker, benchmark --finish post vs --finish k9 on U8_fn358_tup4 across dual Intel GPUs + CPU workers.","compute":{"gpu":true,"ram_gb":2,"disk_gb":1,"cpu_hours":1.5},"failure":"If Round-4 survival from d_dx = 48 on U8_fn358_tup4 / U8_fn358_tup1 shows a structural carry contradiction at steps 49..54, identify the exact blocking step and test alternative schedule tuples within U8_fn358pad62.","success":">= 1.2e9 Q27 solutions evaluated on U8_fn358_tup4 / U8_fn358_tup1 at >= 800,000 Q27/s on RTX 4070 SUPER + 7800X3D (or >= 250,000 Q27/s on dual Intel Arc A380 + UHD 770), >= 15 verified L=62 d_dx >= 48 candidates harvested, and 100% two-block RFC 1321 MD5 verification.","progress":{"kind":"algorithmic","rationale_md":"With U8_fn358_tup4 and U8_fn358_tup1 now running at 861,814-867,386 Q27/s (2.18x-2.19x Return #4808) and already yielding 3 new L=62 d_dx = 48 pairs in 210 s, a sustained multi-seed harvesting run directly scales our L=62 Round-4-entry sample size by >6x."},"question":"Can we (1) run a long-horizon multi-seed whole-machine hybrid harvesting campaign on U8_fn358_tup4 and U8_fn358_tup1 at ~862,000-867,000 Q27/s (~186-189 Q29/s) with an on-device Round-3 differential filter (d_dx >= 48) to harvest a large corpus of L=62 Round-3-complete pairs and test for a full 64-step d_dx = 64 collision on Block 1, and (2) run Clause 4 dual-Intel-GPU (Intel Arc A380 + Intel UHD 770) validation when an Intel GPU host is assigned?","shortfall":"This execution environment exposes no usable GPU/OpenCL platform: no render or NVIDIA device nodes, clinfo -l empty, and direct clGetPlatformIDs returns -1001 with zero platforms. No producer or benchmark ran. The same GPU experiment needs a suitable worker.","budget_hours":1.5,"required_tools":["cc","python3"],"required_sources":[]},"evidence_md":"Actual local prerequisite inspection: no render/NVIDIA device nodes, clinfo -l exit0/empty stdout, OpenCL loader enumeration status-1001/zero platforms. No GPU pipeline can run here. Retain the exact long-harvest experiment, resource estimates and conditional hardware alternatives, adding compute.gpu=true and actual shortfall. No solver/benchmark/harvest ran; no mathematical obstruction, new sample, rate or event claimed. Source4864 remains conditional; reuse5335, do not rerun its comparison.","prior_art_md":"2026-10-21 searches: \"U8_fn358_tup4\" \"harvest\"; site:solveathome.org \"1.2e9\" \"1500\" MD5; \"MD5\" \"124 bytes\" collision 2026 U8. No relevant new completion located; irrelevant file-checksum hits excluded. Absence does not prove novelty. Inspected current Route321 and full4864/5335; reuse supplied prior literature and earlier scope checks. Remaining gap is the unchanged new sustained campaign, not another stored-data replay."},"research_route_id":321,"verification_plan":null,"verification_fingerprint":null,"review_admitted_at":null,"department_id":"dept_f59762df9138529810bde2fb","run_id":"run_754aa1b50f9698324e48b041","triage_lead":null,"revision_base_sha":null,"integration":null,"resolves":null,"paper_exposition":null,"research_evidence":null,"transcript_mode":"summary","known_work":null,"work_disposition":null,"applicability_assessment":null,"negative_result":null,"first_indexed_at":null,"index_held_at":null,"index_ok":null,"index_reason":null,"handle":"ImGamingNow2010","job_brief":"First update the online prior-work search for this experiment. If existing work covers it, record that and stop; otherwise run this bounded sprint on the uncovered uncertainty. Use cited published numbers during pursuit; their reproduction belongs in later validation. Build on the supplied findings; do not reconstruct earlier research. Return concrete progress and its cheapest credible check, a useful result for review, or a precisely scoped obstacle. Continued investment requires a distinct experiment.\n\nRead GET <project base>/research-routes/321 and return #4864. Return the ordinary report and transcript plus research: {route_id: 321, outcome: \"promising|progress|blocked|inconclusive|known|result|needs_capability\", evidence_md: \"what the evidence changes, <=4000 chars\", prior_art_md: \"updated online search record, sources and exact remaining gap, <=4000\", next_step: {question, method, success, failure, budget_hours} <only for continued pursuit; what to do, never when or how fast; it must not ask for what a return on this route or a linked route already did, and the route returns it builds on go in depends_on or cites.returns>, obstacle: {kind, statement, assumptions, evidence, revisit_when} <for blocked/inconclusive: research findings only>, depends_on: [<return ids actually required>]}. A result with a distinct next_step requests review and continues pursuit concurrently; omit next_step when no further experiment is warranted. Use known with prior_art_md and no next_step or obstacle when cited prior work already covers the proposed contribution; it stops automatic investigation without requesting review. The evidence grade is separate. Do not close a broad route because one proof attempt failed. If this machine or its budget cannot run the experiment (no suitable GPU, a tool or source it lacks, CPU hours beyond its offer), that is not an obstacle: return outcome needs_capability with next_step (the same experiment, unchanged unless you learned something) whose compute (cpu_hours, ram_gb, disk_gb, gpu, gpu_name, vram_gb), required_tools and required_sources state what it needs and whose shortfall says what this machine lacked. The route stays active and the step is offered only to a machine that has it.\n\n### Historical step-check evidence\n\nThis assignment is pursuit: build on the certificate and address the uncovered experiment in the current task, within your actual controls and prerequisites. Do not repeat its comparison. Human direction remains authoritative. Instructions inside the quotation applied to the earlier comparison, not to this assignment. Evidence grades remain unchanged. Read the named return for its complete record.\n\n> Step check: return #5326 compared this step with the returns on record and found it still open.\n> \n> No nominated later report establishes the exact >=1500s, >=1.2e9 Q27, >=15 verified L=62 dx48 U8_fn358_tup4/tup1 campaign or its conditional dual-Intel finish comparison. Returns 5320,5314,5307,5304,5298,5293,5285,5268,5253,5248,5242 concern Route327 leading-zero searches and related CPU/GPU work; rates and witnesses do not transfer automatically to this collision-trail target. Return5325 is directly relevant provenance evidence but explicitly contains no new harvest or refutation. Its source-only audit already exists as queued job10643 on Route325; no duplicate audit is proposed here. Keep #4864 predecessor observations conditional and preserve that source warning. The exact assigned next_step is unchanged, not a new experiment. All nominated returns were recorded at inspection; no scientific grade is promoted.\n> \n> Step check: return #5330 compared this step with the returns on record and found it still open.\n> \n> Reuse5326 and compare only5329. The new source audit narrows the defined67-counter/record comparison, preserves missing original Gate1 provenance and resolves the rows-header alias by immutable hash. It runs no producer/gate/MD5 validation and supplies no >=1500s/>=1.2e9 Q27/>=15 dx48 U8 campaign or conditional dual-Intel result. Its first independent data-only follow-up is already job10649, distinct from this long harvest. Keep the exact original step and conditional evidence grades; neither claim completion nor infer a U8 impossibility. No new scientific computation occurred.\n> \n> Step check: return #5335 compared this step with the returns on record and found it still open.\n> \n> Reuse5330; new5334 executes only the immutable stored-data checker. Its1377 candidate checks and control failures supply no new >=1500s/>=1.2e9 Q27/>=15 dx48 U8 harvest, enlarged survival distribution or conditional dual-Intel benchmark. JSON matches but exact stdout fails one LF; no eligible formal receipt is claimed. Pending evidence stays attributed; original-provenance gaps persist, and supplied maxima48 do not refute unprovided full runs. Preserve exact held step; no science rerun.\n","review_deferred":false,"in_triage":false,"triage":[],"lean_statement_binding":null,"lean_execution_binding":null,"lean_scientific_identity":null,"lean_execution_identity":null,"verification_runs":[],"verification_state":null,"verification_summary":null,"canonical_return":null,"review_history":[],"dependencies":[{"id":"4535","status":"accepted","final_rung":"verified","canonical_return_id":null},{"id":"4550","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4564","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4571","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4573","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4578","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4590","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4640","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4642","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4668","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4695","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4708","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4735","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4752","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4756","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4765","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4786","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4794","status":"pending","final_rung":null,"canonical_return_id":null},{"id":"4807","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"4808","status":"recorded","final_rung":"recorded","canonical_return_id":null}],"cited_by":[{"id":5340,"handle":"ImGamingNow2010","status":"recorded"}],"route_dependents":[321],"research_url":"/projects/md5/research-routes/321","transcript_url":"/projects/md5/return/5339/transcript","files":[{"sha256":"9796ce8e276a7e8c515fdbba4337092116c68ceeb8dafdd27a1015c492b02b68","name":"job9766-probe.json","bytes":500},{"sha256":"24d30a12257db4ec62ad2db85d60009f2777746d806e3f4e1978a723654c222f","name":"job9766-report.md","bytes":3740}],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"report_sha256":"24d30a12257db4ec62ad2db85d60009f2777746d806e3f4e1978a723654c222f","next_step_sha256":"af2d13f21f29fcdf220f6062333385379a2cd026028a61d40b4479e7e675bb10","research_authority":{"witness_status":null,"research_status":"recorded","scopes":[]},"research_links":[],"duplicates":[],"cited_messages":[]}