{"id":"https://openalex.org/W3158052372","doi":"https://doi.org/10.1145/3447818.3460353","title":"Performance portable back-projection algorithms on CPUs","display_name":"Performance portable back-projection algorithms on CPUs","publication_year":2021,"publication_date":"2021-06-03","ids":{"openalex":"https://openalex.org/W3158052372","doi":"https://doi.org/10.1145/3447818.3460353","mag":"3158052372"},"language":"en","primary_location":{"id":"doi:10.1145/3447818.3460353","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3447818.3460353","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the ACM International Conference on Supercomputing","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://arxiv.org/abs/2104.13248","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5053998645","display_name":"Chen Peng","orcid":"https://orcid.org/0000-0003-3641-2309"},"institutions":[{"id":"https://openalex.org/I4210129730","display_name":"RIKEN Center for Computational Science","ror":"https://ror.org/03r519674","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210110652","https://openalex.org/I4210129730"]},{"id":"https://openalex.org/I73613424","display_name":"National Institute of Advanced Industrial Science and Technology","ror":"https://ror.org/01703db54","country_code":"JP","type":"government","lineage":["https://openalex.org/I73613424"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Peng Chen","raw_affiliation_strings":["National Institute of Advanced Industrial Science and Technology; RIKEN Center for Computational Science, Kobe, Japan","National Institute of Advanced Industrial Science and Technology;RIKEN Center for Computational Science, Kobe, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Institute of Advanced Industrial Science and Technology; RIKEN Center for Computational Science, Kobe, Japan","institution_ids":["https://openalex.org/I4210129730","https://openalex.org/I73613424"]},{"raw_affiliation_string":"National Institute of Advanced Industrial Science and Technology;RIKEN Center for Computational Science, Kobe, Japan","institution_ids":["https://openalex.org/I4210129730","https://openalex.org/I73613424"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5002208999","display_name":"Mohamed Wahib","orcid":"https://orcid.org/0000-0002-7165-2095"},"institutions":[{"id":"https://openalex.org/I4210129730","display_name":"RIKEN Center for Computational Science","ror":"https://ror.org/03r519674","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210110652","https://openalex.org/I4210129730"]},{"id":"https://openalex.org/I73613424","display_name":"National Institute of Advanced Industrial Science and Technology","ror":"https://ror.org/01703db54","country_code":"JP","type":"government","lineage":["https://openalex.org/I73613424"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Mohamed Wahib","raw_affiliation_strings":["National Institute of Advanced Industrial Science and Technology;RIKEN Center for Computational Science, Kobe, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Institute of Advanced Industrial Science and Technology;RIKEN Center for Computational Science, Kobe, Japan","institution_ids":["https://openalex.org/I4210129730","https://openalex.org/I73613424"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070747726","display_name":"Xiao Wang","orcid":"https://orcid.org/0000-0001-5180-877X"},"institutions":[{"id":"https://openalex.org/I1288882113","display_name":"Boston Children's Hospital","ror":"https://ror.org/00dvg7y05","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1288882113"]},{"id":"https://openalex.org/I136199984","display_name":"Harvard University","ror":"https://ror.org/03vek6s52","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Xiao Wang","raw_affiliation_strings":["Harvard Medical School, Boston Children's Hospital","Harvard Medical School Boston Children's Hospital"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Harvard Medical School, Boston Children's Hospital","institution_ids":["https://openalex.org/I1288882113","https://openalex.org/I136199984"]},{"raw_affiliation_string":"Harvard Medical School Boston Children's Hospital","institution_ids":["https://openalex.org/I1288882113","https://openalex.org/I136199984"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5036711476","display_name":"Shinichiro Takizawa","orcid":"https://orcid.org/0000-0001-8028-7328"},"institutions":[{"id":"https://openalex.org/I73613424","display_name":"National Institute of Advanced Industrial Science and Technology","ror":"https://ror.org/01703db54","country_code":"JP","type":"government","lineage":["https://openalex.org/I73613424"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shinichiro Takizawa","raw_affiliation_strings":["National Institute of Advanced Industrial Science and Technology","National Institute of Advanced Industrial Science and#N#                  Technology"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Institute of Advanced Industrial Science and Technology","institution_ids":["https://openalex.org/I73613424"]},{"raw_affiliation_string":"National Institute of Advanced Industrial Science and#N#                  Technology","institution_ids":["https://openalex.org/I73613424"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076142660","display_name":"Takahiro Hirofuchi","orcid":null},"institutions":[{"id":"https://openalex.org/I73613424","display_name":"National Institute of Advanced Industrial Science and Technology","ror":"https://ror.org/01703db54","country_code":"JP","type":"government","lineage":["https://openalex.org/I73613424"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takahiro Hirofuchi","raw_affiliation_strings":["National Institute of Advanced Industrial Science and Technology","National Institute of Advanced Industrial Science and#N#                  Technology"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Institute of Advanced Industrial Science and Technology","institution_ids":["https://openalex.org/I73613424"]},{"raw_affiliation_string":"National Institute of Advanced Industrial Science and#N#                  Technology","institution_ids":["https://openalex.org/I73613424"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103752908","display_name":"Hirotaka Ogawa","orcid":null},"institutions":[{"id":"https://openalex.org/I73613424","display_name":"National Institute of Advanced Industrial Science and Technology","ror":"https://ror.org/01703db54","country_code":"JP","type":"government","lineage":["https://openalex.org/I73613424"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hirotaka Ogawa","raw_affiliation_strings":["National Institute of Advanced Industrial Science and Technology","National Institute of Advanced Industrial Science and#N#                  Technology"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Institute of Advanced Industrial Science and Technology","institution_ids":["https://openalex.org/I73613424"]},{"raw_affiliation_string":"National Institute of Advanced Industrial Science and#N#                  Technology","institution_ids":["https://openalex.org/I73613424"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103252086","display_name":"Satoshi Matsuoka","orcid":"https://orcid.org/0000-0003-2126-2926"},"institutions":[{"id":"https://openalex.org/I114531698","display_name":"Tokyo Institute of Technology","ror":"https://ror.org/0112mx960","country_code":"JP","type":"education","lineage":["https://openalex.org/I114531698"]},{"id":"https://openalex.org/I4210129730","display_name":"RIKEN Center for Computational Science","ror":"https://ror.org/03r519674","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210110652","https://openalex.org/I4210129730"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Satoshi Matsuoka","raw_affiliation_strings":["RIKEN Center for Computational Science, Kobe, Japan; Tokyo Institute of Technology, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"RIKEN Center for Computational Science, Kobe, Japan; Tokyo Institute of Technology, Japan","institution_ids":["https://openalex.org/I4210129730","https://openalex.org/I114531698"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"316","last_page":"328"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10378","display_name":"Advanced MRI Techniques and Applications","score":0.9976999759674072,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10052","display_name":"Medical Image Segmentation Techniques","score":0.9965999722480774,"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":0.8494381308555603},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.6496433019638062},{"id":"https://openalex.org/keywords/speedup","display_name":"Speedup","score":0.6462622880935669},{"id":"https://openalex.org/keywords/cuda","display_name":"CUDA","score":0.6162793040275574},{"id":"https://openalex.org/keywords/projection","display_name":"Projection (relational algebra)","score":0.5969646573066711},{"id":"https://openalex.org/keywords/vectorization","display_name":"Vectorization (mathematics)","score":0.5316788554191589},{"id":"https://openalex.org/keywords/programmer","display_name":"Programmer","score":0.5203889608383179},{"id":"https://openalex.org/keywords/data-parallelism","display_name":"Data parallelism","score":0.5044926404953003},{"id":"https://openalex.org/keywords/locality","display_name":"Locality","score":0.48492032289505005},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4542132616043091},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.42408284544944763},{"id":"https://openalex.org/keywords/parallelism","display_name":"Parallelism (grammar)","score":0.24275779724121094},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.12815919518470764}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8494381308555603},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.6496433019638062},{"id":"https://openalex.org/C68339613","wikidata":"https://www.wikidata.org/wiki/Q1549489","display_name":"Speedup","level":2,"score":0.6462622880935669},{"id":"https://openalex.org/C2778119891","wikidata":"https://www.wikidata.org/wiki/Q477690","display_name":"CUDA","level":2,"score":0.6162793040275574},{"id":"https://openalex.org/C57493831","wikidata":"https://www.wikidata.org/wiki/Q3134666","display_name":"Projection (relational algebra)","level":2,"score":0.5969646573066711},{"id":"https://openalex.org/C41681595","wikidata":"https://www.wikidata.org/wiki/Q7917855","display_name":"Vectorization (mathematics)","level":2,"score":0.5316788554191589},{"id":"https://openalex.org/C2778514511","wikidata":"https://www.wikidata.org/wiki/Q1374194","display_name":"Programmer","level":2,"score":0.5203889608383179},{"id":"https://openalex.org/C61483411","wikidata":"https://www.wikidata.org/wiki/Q3124522","display_name":"Data parallelism","level":3,"score":0.5044926404953003},{"id":"https://openalex.org/C2779808786","wikidata":"https://www.wikidata.org/wiki/Q6664603","display_name":"Locality","level":2,"score":0.48492032289505005},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4542132616043091},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.42408284544944763},{"id":"https://openalex.org/C2781172179","wikidata":"https://www.wikidata.org/wiki/Q853109","display_name":"Parallelism (grammar)","level":2,"score":0.24275779724121094},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.12815919518470764},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/3447818.3460353","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3447818.3460353","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the ACM International Conference on Supercomputing","raw_type":"proceedings-article"},{"id":"mag:3158052372","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2104.13248","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"arXiv (Cornell University)","raw_type":null}],"best_oa_location":{"id":"mag:3158052372","is_oa":true,"landing_page_url":"http://arxiv.org/abs/2104.13248","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"arXiv (Cornell University)","raw_type":null},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1769477490","display_name":"Large-scale Tomography Computation","funder_award_id":"21K17750","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"}],"funders":[{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":54,"referenced_works":["https://openalex.org/W38257615","https://openalex.org/W851369255","https://openalex.org/W1828336383","https://openalex.org/W1829221455","https://openalex.org/W1906046253","https://openalex.org/W1949839429","https://openalex.org/W1970242215","https://openalex.org/W1971822626","https://openalex.org/W1972015875","https://openalex.org/W1982167457","https://openalex.org/W1989473328","https://openalex.org/W1998277304","https://openalex.org/W2000003433","https://openalex.org/W2010680750","https://openalex.org/W2011268646","https://openalex.org/W2029570992","https://openalex.org/W2033819227","https://openalex.org/W2033875327","https://openalex.org/W2036145020","https://openalex.org/W2037521346","https://openalex.org/W2053974706","https://openalex.org/W2057820700","https://openalex.org/W2069629287","https://openalex.org/W2074185362","https://openalex.org/W2105019148","https://openalex.org/W2116669464","https://openalex.org/W2138163882","https://openalex.org/W2138867322","https://openalex.org/W2150903265","https://openalex.org/W2154744699","https://openalex.org/W2157812230","https://openalex.org/W2168530812","https://openalex.org/W2253316886","https://openalex.org/W2272618324","https://openalex.org/W2399715892","https://openalex.org/W2501312908","https://openalex.org/W2558636714","https://openalex.org/W2581533092","https://openalex.org/W2601138085","https://openalex.org/W2613264175","https://openalex.org/W2622148586","https://openalex.org/W2748044793","https://openalex.org/W2754695535","https://openalex.org/W2768032319","https://openalex.org/W2899314786","https://openalex.org/W2924766098","https://openalex.org/W2963706620","https://openalex.org/W2971663118","https://openalex.org/W3046170233","https://openalex.org/W3130398772","https://openalex.org/W4230416295","https://openalex.org/W4240518936","https://openalex.org/W4285719527","https://openalex.org/W6600577311"],"related_works":["https://openalex.org/W7081844","https://openalex.org/W14085413","https://openalex.org/W8941019","https://openalex.org/W10520331","https://openalex.org/W1607723","https://openalex.org/W13242782","https://openalex.org/W4242785","https://openalex.org/W10023398","https://openalex.org/W11479299","https://openalex.org/W1810899"],"abstract_inverted_index":{"Computed":[0],"Tomography":[1],"(CT)":[2],"is":[3,65,82],"a":[4,92,107,132,140,173],"key":[5],"3D":[6,19],"imaging":[7],"technology":[8],"that":[9,68,98,127,150,179],"fundamentally":[10],"relies":[11],"on":[12,63,155],"the":[13,33,41,79,83,100,114,120,160,164],"compute-intense":[14],"back-projection":[15,26,50,61,96,125,152],"operation":[16],"to":[17,48],"generate":[18],"volumes.":[20],"GPUs":[21],"are":[22,72,128],"typically":[23],"used":[24],"for":[25,51,60,88],"in":[27,46],"production":[28],"CT":[29],"devices.":[30],"However,":[31],"with":[32],"rise":[34],"of":[35,43,94,135,142,163],"power-constrained":[36],"micro-CT":[37],"devices,":[38],"and":[39,70,76,112,147,168],"also":[40,118],"emergence":[42],"CPUs":[44,52,64,143],"comparable":[45],"performance":[47,129,178],"GPUs,":[49,57],"could":[53],"become":[54],"favorable.":[55],"Unlike":[56],"extracting":[58],"parallelism":[59,69],"algorithms":[62,97,122],"complex":[66],"given":[67],"locality":[71],"not":[73],"explicitly":[74],"defined":[75],"controlled":[77],"by":[78],"programmer,":[80],"as":[81,123],"case":[84],"when":[85],"using":[86,139],"CUDA":[87],"instance.":[89],"We":[90,117],"propose":[91],"collection":[93],"novel":[95,121],"reduce":[99],"arithmetic":[101],"computation,":[102],"robustly":[103],"enable":[104],"vectorization,":[105],"enforce":[106],"regular":[108],"memory":[109],"access":[110],"pattern,":[111],"maximize":[113],"data":[115],"locality.":[116],"implement":[119],"efficient":[124],"kernels":[126],"portable":[130],"over":[131,159],"wide":[133],"range":[134],"CPUs.":[136],"Performance":[137],"evaluation":[138],"variety":[141],"from":[144],"different":[145],"vendors":[146],"generations":[148],"demonstrates":[149],"our":[151],"implementation":[153,162],"achieves":[154],"average":[156],"5.2x":[157],"speedup":[158],"multi-threaded":[161],"most":[165],"widely":[166],"used,":[167],"optimized,":[169],"open":[170],"library.":[171],"With":[172],"state-of-the-art":[174],"CPU,":[175],"we":[176],"reach":[177],"rivals":[180],"top-performing":[181],"GPUs.":[182]},"counts_by_year":[],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2021-05-10T00:00:00"}