{"id":"https://openalex.org/W2482948774","doi":"https://doi.org/10.2312/cgvc.20161299","title":"Hybrid Data-Parallel Contour Tree Computation","display_name":"Hybrid Data-Parallel Contour Tree Computation","publication_year":2016,"publication_date":"2016-01-01","ids":{"openalex":"https://openalex.org/W2482948774","doi":"https://doi.org/10.2312/cgvc.20161299","mag":"2482948774"},"language":"en","primary_location":{"id":"pmh:oai:osti.gov:1229715","is_oa":true,"landing_page_url":"https://www.osti.gov/biblio/1229715","pdf_url":"https://www.osti.gov/servlets/purl/1229715","source":{"id":"https://openalex.org/S4306402487","display_name":"OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I139351228","host_organization_name":"Office of Scientific and Technical Information","host_organization_lineage":["https://openalex.org/I139351228"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null},"type":"other","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://www.osti.gov/servlets/purl/1229715","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5020952435","display_name":"Hamish Carr","orcid":"https://orcid.org/0000-0001-6739-0283"},"institutions":[{"id":"https://openalex.org/I130828816","display_name":"University of Leeds","ror":"https://ror.org/024mrxd33","country_code":"GB","type":"education","lineage":["https://openalex.org/I130828816"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Carr, Hamish","raw_affiliation_strings":["Univ. of Leeds, UK#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Univ. of Leeds, UK#TAB#","institution_ids":["https://openalex.org/I130828816"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060041531","display_name":"Christopher Sewell","orcid":null},"institutions":[{"id":"https://openalex.org/I1343871089","display_name":"Los Alamos National Laboratory","ror":"https://ror.org/01e41cf67","country_code":"US","type":"facility","lineage":["https://openalex.org/I1330989302","https://openalex.org/I1343871089","https://openalex.org/I198811213","https://openalex.org/I4210120050"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Sewell, Christopher","raw_affiliation_strings":["Los Alamos national Laboratory"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Los Alamos national Laboratory","institution_ids":["https://openalex.org/I1343871089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070740417","display_name":"L-T. Lo","orcid":null},"institutions":[{"id":"https://openalex.org/I1343871089","display_name":"Los Alamos National Laboratory","ror":"https://ror.org/01e41cf67","country_code":"US","type":"facility","lineage":["https://openalex.org/I1330989302","https://openalex.org/I1343871089","https://openalex.org/I198811213","https://openalex.org/I4210120050"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Lo, Li-Ta","raw_affiliation_strings":["Los Alamos national Laboratory"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Los Alamos national Laboratory","institution_ids":["https://openalex.org/I1343871089"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5000687536","display_name":"James Ahrens","orcid":"https://orcid.org/0000-0001-9378-282X"},"institutions":[{"id":"https://openalex.org/I1343871089","display_name":"Los Alamos National Laboratory","ror":"https://ror.org/01e41cf67","country_code":"US","type":"facility","lineage":["https://openalex.org/I1330989302","https://openalex.org/I1343871089","https://openalex.org/I198811213","https://openalex.org/I4210120050"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ahrens, James","raw_affiliation_strings":["Los Alamos national Laboratory"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Los Alamos national Laboratory","institution_ids":["https://openalex.org/I1343871089"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":8,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12536","display_name":"Topological and Geometric Data Analysis","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12536","display_name":"Topological and Geometric Data Analysis","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10531","display_name":"Advanced Vision and Imaging","score":0.9865000247955322,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12923","display_name":"Digital Image Processing Techniques","score":0.9624000191688538,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8498580455780029},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.755378007888794},{"id":"https://openalex.org/keywords/simd","display_name":"SIMD","score":0.6556715369224548},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.6396927237510681},{"id":"https://openalex.org/keywords/massively-parallel","display_name":"Massively parallel","score":0.617686927318573},{"id":"https://openalex.org/keywords/cuda","display_name":"CUDA","score":0.5409148931503296},{"id":"https://openalex.org/keywords/multi-core-processor","display_name":"Multi-core processor","score":0.4943373203277588},{"id":"https://openalex.org/keywords/compiler","display_name":"Compiler","score":0.49425458908081055},{"id":"https://openalex.org/keywords/embarrassingly-parallel","display_name":"Embarrassingly parallel","score":0.48845425248146057},{"id":"https://openalex.org/keywords/parallel-algorithm","display_name":"Parallel algorithm","score":0.47392162680625916},{"id":"https://openalex.org/keywords/computational-science","display_name":"Computational science","score":0.47229817509651184},{"id":"https://openalex.org/keywords/tree","display_name":"Tree (set theory)","score":0.46997207403182983},{"id":"https://openalex.org/keywords/data-structure","display_name":"Data structure","score":0.4260944426059723},{"id":"https://openalex.org/keywords/petabyte","display_name":"Petabyte","score":0.4142466187477112},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.2674829065799713},{"id":"https://openalex.org/keywords/big-data","display_name":"Big data","score":0.19560623168945312},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.09175950288772583},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.08483883738517761}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8498580455780029},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.755378007888794},{"id":"https://openalex.org/C150552126","wikidata":"https://www.wikidata.org/wiki/Q339387","display_name":"SIMD","level":2,"score":0.6556715369224548},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.6396927237510681},{"id":"https://openalex.org/C190475519","wikidata":"https://www.wikidata.org/wiki/Q544384","display_name":"Massively parallel","level":2,"score":0.617686927318573},{"id":"https://openalex.org/C2778119891","wikidata":"https://www.wikidata.org/wiki/Q477690","display_name":"CUDA","level":2,"score":0.5409148931503296},{"id":"https://openalex.org/C78766204","wikidata":"https://www.wikidata.org/wiki/Q555032","display_name":"Multi-core processor","level":2,"score":0.4943373203277588},{"id":"https://openalex.org/C169590947","wikidata":"https://www.wikidata.org/wiki/Q47506","display_name":"Compiler","level":2,"score":0.49425458908081055},{"id":"https://openalex.org/C126909462","wikidata":"https://www.wikidata.org/wiki/Q5369501","display_name":"Embarrassingly parallel","level":3,"score":0.48845425248146057},{"id":"https://openalex.org/C120373497","wikidata":"https://www.wikidata.org/wiki/Q1087987","display_name":"Parallel algorithm","level":2,"score":0.47392162680625916},{"id":"https://openalex.org/C459310","wikidata":"https://www.wikidata.org/wiki/Q117801","display_name":"Computational science","level":1,"score":0.47229817509651184},{"id":"https://openalex.org/C113174947","wikidata":"https://www.wikidata.org/wiki/Q2859736","display_name":"Tree (set theory)","level":2,"score":0.46997207403182983},{"id":"https://openalex.org/C162319229","wikidata":"https://www.wikidata.org/wiki/Q175263","display_name":"Data structure","level":2,"score":0.4260944426059723},{"id":"https://openalex.org/C13600138","wikidata":"https://www.wikidata.org/wiki/Q8799","display_name":"Petabyte","level":3,"score":0.4142466187477112},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2674829065799713},{"id":"https://openalex.org/C75684735","wikidata":"https://www.wikidata.org/wiki/Q858810","display_name":"Big data","level":2,"score":0.19560623168945312},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.09175950288772583},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.08483883738517761},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:osti.gov:1229715","is_oa":true,"landing_page_url":"https://www.osti.gov/biblio/1229715","pdf_url":"https://www.osti.gov/servlets/purl/1229715","source":{"id":"https://openalex.org/S4306402487","display_name":"OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I139351228","host_organization_name":"Office of Scientific and Technical Information","host_organization_lineage":["https://openalex.org/I139351228"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null},{"id":"doi:10.2312/cgvc.20161299","is_oa":true,"landing_page_url":"https://doi.org/10.2312/cgvc.20161299","pdf_url":null,"source":{"id":"https://openalex.org/S7407052899","display_name":"Eurographics","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":null}],"best_oa_location":{"id":"pmh:oai:osti.gov:1229715","is_oa":true,"landing_page_url":"https://www.osti.gov/biblio/1229715","pdf_url":"https://www.osti.gov/servlets/purl/1229715","source":{"id":"https://openalex.org/S4306402487","display_name":"OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I139351228","host_organization_name":"Office of Scientific and Technical Information","host_organization_lineage":["https://openalex.org/I139351228"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G286898171","display_name":null,"funder_award_id":"DE-AC52-06NA2-5396","funder_id":"https://openalex.org/F4320306084","funder_display_name":"U.S. Department of Energy"},{"id":"https://openalex.org/G3074528224","display_name":null,"funder_award_id":"EP/J013072/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G3700687868","display_name":null,"funder_award_id":"AC52-06NA25396","funder_id":"https://openalex.org/F4320338304","funder_display_name":"Los Alamos National Laboratory"},{"id":"https://openalex.org/G5657628048","display_name":null,"funder_award_id":"AC52-06NA25396","funder_id":"https://openalex.org/F4320306084","funder_display_name":"U.S. Department of Energy"},{"id":"https://openalex.org/G75892134","display_name":null,"funder_award_id":"DE-AC52-06NA25396","funder_id":"https://openalex.org/F4320338304","funder_display_name":"Los Alamos National Laboratory"}],"funders":[{"id":"https://openalex.org/F4320306084","display_name":"U.S. Department of Energy","ror":"https://ror.org/01bj3aw27"},{"id":"https://openalex.org/F4320334627","display_name":"Engineering and Physical Sciences Research Council","ror":"https://ror.org/0439y7842"},{"id":"https://openalex.org/F4320338304","display_name":"Los Alamos National Laboratory","ror":"https://ror.org/01e41cf67"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2482948774.pdf","grobid_xml":"https://content.openalex.org/works/W2482948774.grobid-xml"},"referenced_works_count":19,"referenced_works":["https://openalex.org/W1548333856","https://openalex.org/W1972105186","https://openalex.org/W1986022261","https://openalex.org/W1987698555","https://openalex.org/W1993239100","https://openalex.org/W2053160676","https://openalex.org/W2089472251","https://openalex.org/W2091677960","https://openalex.org/W2095326847","https://openalex.org/W2112708371","https://openalex.org/W2120490947","https://openalex.org/W2165401058","https://openalex.org/W2165939338","https://openalex.org/W2187339569","https://openalex.org/W2264962371","https://openalex.org/W3015249164","https://openalex.org/W3100706835","https://openalex.org/W3102754119","https://openalex.org/W3138447845"],"related_works":["https://openalex.org/W2255048617","https://openalex.org/W2092102951","https://openalex.org/W2142204081","https://openalex.org/W1512604874","https://openalex.org/W2140636994","https://openalex.org/W2158982898","https://openalex.org/W1784407820","https://openalex.org/W1975707871","https://openalex.org/W338671845","https://openalex.org/W170159993"],"abstract_inverted_index":{"As":[0],"data":[1,18],"sets":[2],"increase":[3],"in":[4,50],"size":[5],"beyond":[6,92],"the":[7,28,62,68,107],"petabyte,":[8],"it":[9],"is":[10,39],"increasingly":[11],"important":[12],"to":[13,82,118],"have":[14],"automated":[15],"methods":[16],"for":[17,47,52,66,101,123],"analysis":[19,24],"and":[20,31,98,126],"visualisation.":[21],"While":[22],"topological":[23],"tools":[25],"such":[26],"as":[27],"contour":[29,71],"tree":[30],"Morse-Smale":[32],"complex":[33],"are":[34],"now":[35],"well":[36],"established,":[37],"there":[38],"still":[40],"a":[41,57,74,84,93],"shortage":[42],"of":[43],"efficient":[44],"parallel":[45],"algorithms":[46],"their":[48],"computation,":[49],"particular":[51],"massively":[53],"data-parallel":[54,64,86,109],"computation":[55,76],"on":[56],"SIMD":[58],"model.":[59,77],"We":[60,78],"report":[61],"first":[63],"algorithm":[65,89],"computing":[67],"fully":[69],"augmented":[70],"tree,":[72],"using":[73],"quantised":[75],"then":[79],"extend":[80],"this":[81],"provide":[83,99],"hybrid":[85],"/":[87],"distributed":[88],"allowing":[90,116],"scaling":[91],"single":[94],"GPU":[95],"or":[96],"CPU,":[97],"results":[100],"its":[102],"computation.":[103],"Our":[104],"implementation":[105],"uses":[106],"portable":[108],"primitives":[110],"provided":[111],"by":[112],"NVIDIA's":[113],"Thrust":[114],"library,":[115],"us":[117],"compile":[119],"our":[120],"same":[121],"code":[122],"both":[124],"GPUs":[125],"multi-core":[127],"CPUs.":[128]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2019,"cited_by_count":2},{"year":2016,"cited_by_count":3}],"updated_date":"2026-08-01T09:00:35.917206","created_date":"2025-10-10T00:00:00"}
