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capability has not been assessed.","summary":{"attemptCount":0,"bestCost":null,"medianCost":null,"status":"not_run","statusCounts":{},"validAttemptCount":0}},{"admissionState":"verify","attemptPolicy":"stochastic_five","attempts":[],"comparatorId":"optimal_group_generator","configurationId":"optimal-group-generator-live-fixed-ga-sequential-v1","evidenceHref":null,"evidenceRevision":20,"reason":"Not run on this case; capability has not been assessed.","summary":{"attemptCount":0,"bestCost":null,"medianCost":null,"status":"not_run","statusCounts":{},"validAttemptCount":0}},{"admissionState":"eligible","attemptPolicy":"seeded_five","attempts":[{"attemptId":"seed-101","canonicalCost":21.0,"commonMetrics":{"contact_incidences":1080,"linear_repeat_penalty":321,"maximum_pair_count":6,"maximum_unique_contacts_per_participant":39,"mean_unique_contacts_per_participant":37.95,"minimum_unique_contacts_per_participant":35,"pair_frequency_histogram":{"1":545,"2":167,"3":22,"4":6,"5":3,"6":16},"pairs_repeated":214,"squared_repeat_concentration":757,"total_repeat_excess":321,"unique_contacts":759},"peakRssBytes":null,"proof":null,"seed":101,"solveSeconds":58.07758772899979,"status":"feasible_timeout","timingClass":"same_machine_native","wallSeconds":58.54836038900066},{"attemptId":"seed-202","canonicalCost":27.0,"commonMetrics":{"contact_incidences":1080,"linear_repeat_penalty":327,"maximum_pair_count":6,"maximum_unique_contacts_per_participant":39,"mean_unique_contacts_per_participant":37.65,"minimum_unique_contacts_per_participant":34,"pair_frequency_histogram":{"1":557,"2":123,"3":47,"4":10,"6":16},"pairs_repeated":196,"squared_repeat_concentration":801,"total_repeat_excess":327,"unique_contacts":753},"peakRssBytes":null,"proof":null,"seed":202,"solveSeconds":58.090547435998815,"status":"feasible_timeout","timingClass":"same_machine_native","wallSeconds":58.56178426399856},{"attemptId":"seed-303","canonicalCost":15.0,"commonMetrics":{"contact_incidences":1080,"linear_repeat_penalty":315,"maximum_pair_count":6,"maximum_unique_contacts_per_participant":39,"mean_unique_contacts_per_participant":38.25,"minimum_unique_contacts_per_participant":34,"pair_frequency_histogram":{"1":555,"2":174,"3":9,"4":2,"5":8,"6":17},"pairs_repeated":210,"squared_repeat_concentration":781,"total_repeat_excess":315,"unique_contacts":765},"peakRssBytes":null,"proof":null,"seed":303,"solveSeconds":58.093484738999905,"status":"feasible_timeout","timingClass":"same_machine_native","wallSeconds":58.55908575800095},{"attemptId":"seed-404","canonicalCost":15.0,"commonMetrics":{"contact_incidences":1080,"linear_repeat_penalty":315,"maximum_pair_count":6,"maximum_unique_contacts_per_participant":39,"mean_unique_contacts_per_participant":38.25,"minimum_unique_contacts_per_participant":35,"pair_frequency_histogram":{"1":554,"2":168,"3":18,"4":5,"5":4,"6":16},"pairs_repeated":211,"squared_repeat_concentration":749,"total_repeat_excess":315,"unique_contacts":765},"peakRssBytes":null,"proof":null,"seed":404,"solveSeconds":58.07324739999967,"status":"feasible_timeout","timingClass":"same_machine_native","wallSeconds":58.55312544199842},{"attemptId":"seed-505","canonicalCost":15.0,"commonMetrics":{"contact_incidences":1080,"linear_repeat_penalty":315,"maximum_pair_count":6,"maximum_unique_contacts_per_participant":39,"mean_unique_contacts_per_participant":38.25,"minimum_unique_contacts_per_participant":35,"pair_frequency_histogram":{"1":561,"2":155,"3":24,"4":4,"5":5,"6":16},"pairs_repeated":204,"squared_repeat_concentration":767,"total_repeat_excess":315,"unique_contacts":765},"peakRssBytes":null,"proof":null,"seed":505,"solveSeconds":58.07298882299801,"status":"feasible_timeout","timingClass":"same_machine_native","wallSeconds":58.54191564300163}],"comparatorId":"ortools_cpsat","configurationId":"ortools-cpsat-measured-20261011:pure-sgp-optimized-v4","evidenceHref":"/benchmarks/public-group-generator-v1/revision-20/evidence.tar.gz","evidenceRevision":20,"reason":"Measured 11 October 2026 on an Intel Core Ultra 9 386H; eight pinned CPUs, 8 GiB physical memory, swap disabled. Measured OR-Tools 9.15.6755 campaign formulation and parameters; this additional case was outside the original frozen matrix.","summary":{"attemptCount":5,"bestCost":15.0,"medianCost":15.0,"status":"feasible","statusCounts":{"feasible_timeout":5},"validAttemptCount":5}},{"admissionState":"verify","attemptPolicy":"stochastic_five","attempts":[],"comparatorId":"social_golfer_online","configurationId":"social-golfer-online-recompute-all-v1","evidenceHref":null,"evidenceRevision":20,"reason":"Not run on this case; capability has not been assessed.","summary":{"attemptCount":0,"bestCost":null,"medianCost":null,"status":"not_run","statusCounts":{},"validAttemptCount":0}},{"admissionState":"verify","attemptPolicy":"stochastic_five","attempts":[],"comparatorId":"teach_arcade_group_maker","configurationId":"teach-arcade-live-roundrobin-sequential-history-v1","evidenceHref":null,"evidenceRevision":20,"reason":"Not run on this case; capability has not been assessed.","summary":{"attemptCount":0,"bestCost":null,"medianCost":null,"status":"not_run","statusCounts":{},"validAttemptCount":0}},{"admissionState":"verify","attemptPolicy":"stochastic_five","attempts":[],"comparatorId":"tourneycard","configurationId":"tourneycard-v2.0.4-case-specific-iterations-v2","evidenceHref":null,"evidenceRevision":20,"reason":"Not run on this case; capability has not been assessed.","summary":{"attemptCount":0,"bestCost":null,"medianCost":null,"status":"not_run","statusCounts":{},"validAttemptCount":0}}],"dimensions":{"groups":4,"people":40,"sessions":6},"lane":"common_mixing","problemHash":"sha256:6fdeec67998f64bc9010dbf8a8f9593a2a3a2010822af906842693f86e6a8450","resourceClass":"standard","scenarioId":"internal.realworld-stack-math-3184175-40x4x6.v1","slug":"realworld-stack-math-3184175-40x4x6","summary":"A six-session dinner contact-coverage reconstruction in four tables of ten.","title":"Six-course dinner coverage"}],"comparators":[{"id":"groupmixer","kind":"product","name":"GroupMixer"},{"id":"ortools_cpsat","kind":"general_purpose_solver","name":"Google OR-Tools CP-SAT"},{"id":"social_golfer_online","kind":"end_user_product","name":"Social Golfer Online"},{"id":"tourneycard","kind":"end_user_product","name":"TourneyCard Golf Randomizer"},{"id":"good_enough_golfers","kind":"end_user_product","name":"Good-Enough Golfers"},{"id":"golfsoftware_play_all","kind":"end_user_product","name":"GolfSoftware Play All"},{"id":"barasu_kun","kind":"end_user_product","name":"Barasu-kun"},{"id":"optimal_group_generator","kind":"end_user_product","name":"Optimal Group Generator"},{"id":"hexaly","kind":"general_purpose_solver","name":"Hexaly"},{"id":"gurobi","kind":"general_purpose_solver","name":"Gurobi"},{"id":"teach_arcade_group_maker","kind":"end_user_product","name":"Teach Arcade Group Maker"},{"id":"halftime_team_pairings","kind":"end_user_product","name":"Halftime Team Pairings"},{"id":"iienstitu_random_group_generator","kind":"end_user_product","name":"IIENSTITU Random Group Generator"}],"disclosure":"GroupMixer authors this benchmark and the OR-Tools formulations. Measured 11 October 2026: all OR-Tools cases and 12 GroupMixer browser cases ran on an Intel Core Ultra 9 386H. Other GroupMixer rows retain the earlier native Auto Extreme runs. Machines, runtimes and memory policies differ; elapsed times are not compared across those runs. Returned schedules are independently evaluated against the same canonical rules.","resourceClasses":{"heavy":{"logical_cpu_limit":8,"timeout_seconds":300},"standard":{"logical_cpu_limit":8,"timeout_seconds":60}},"schemaVersion":"groupmixer-benchmark-publication-v1"}