{"id":"https://openalex.org/W4414674282","doi":"https://doi.org/10.1177/10943420251377295","title":"Comparison of nested geometry treatments within GPU-based Monte Carlo neutron transport simulations of fission reactors","display_name":"Comparison of nested geometry treatments within GPU-based Monte Carlo neutron transport simulations of fission reactors","publication_year":2025,"publication_date":"2025-09-30","ids":{"openalex":"https://openalex.org/W4414674282","doi":"https://doi.org/10.1177/10943420251377295"},"language":"en","primary_location":{"id":"doi:10.1177/10943420251377295","is_oa":false,"landing_page_url":"https://doi.org/10.1177/10943420251377295","pdf_url":null,"source":{"id":"https://openalex.org/S60606485","display_name":"The International Journal of High Performance Computing Applications","issn_l":"1094-3420","issn":["1094-3420","1741-2846"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320017","host_organization_name":"SAGE Publishing","host_organization_lineage":["https://openalex.org/P4310320017"],"host_organization_lineage_names":["SAGE Publishing"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The International Journal of High Performance Computing Applications","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5000916423","display_name":"Elliott Biondo","orcid":"https://orcid.org/0000-0002-9088-1360"},"institutions":[{"id":"https://openalex.org/I1289243028","display_name":"Oak Ridge National Laboratory","ror":"https://ror.org/01qz5mb56","country_code":"US","type":"facility","lineage":["https://openalex.org/I1289243028","https://openalex.org/I1330989302","https://openalex.org/I39565521","https://openalex.org/I4210159294"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Elliott Biondo","raw_affiliation_strings":["Oak Ridge National Laboratory","Oak Ridge National Laboratory, Oak Ridge, TN, USA"],"raw_orcid":"https://orcid.org/0000-0002-9088-1360","affiliations":[{"raw_affiliation_string":"Oak Ridge National Laboratory","institution_ids":["https://openalex.org/I1289243028"]},{"raw_affiliation_string":"Oak Ridge National Laboratory, Oak Ridge, TN, USA","institution_ids":["https://openalex.org/I1289243028"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5039733746","display_name":"Thomas Evans","orcid":"https://orcid.org/0000-0001-5743-3788"},"institutions":[{"id":"https://openalex.org/I1289243028","display_name":"Oak Ridge National Laboratory","ror":"https://ror.org/01qz5mb56","country_code":"US","type":"facility","lineage":["https://openalex.org/I1289243028","https://openalex.org/I1330989302","https://openalex.org/I39565521","https://openalex.org/I4210159294"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Thomas Evans","raw_affiliation_strings":["Oak Ridge National Laboratory","Oak Ridge National Laboratory, Oak Ridge, TN, USA"],"raw_orcid":"https://orcid.org/0000-0001-5743-3788","affiliations":[{"raw_affiliation_string":"Oak Ridge National Laboratory","institution_ids":["https://openalex.org/I1289243028"]},{"raw_affiliation_string":"Oak Ridge National Laboratory, Oak Ridge, TN, USA","institution_ids":["https://openalex.org/I1289243028"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5036961448","display_name":"S. R. Johnson","orcid":"https://orcid.org/0000-0003-1504-8966"},"institutions":[{"id":"https://openalex.org/I1289243028","display_name":"Oak Ridge National Laboratory","ror":"https://ror.org/01qz5mb56","country_code":"US","type":"facility","lineage":["https://openalex.org/I1289243028","https://openalex.org/I1330989302","https://openalex.org/I39565521","https://openalex.org/I4210159294"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Seth Johnson","raw_affiliation_strings":["Oak Ridge National Laboratory","Oak Ridge National Laboratory, Oak Ridge, TN, USA"],"raw_orcid":"https://orcid.org/0000-0003-1504-8966","affiliations":[{"raw_affiliation_string":"Oak Ridge National Laboratory","institution_ids":["https://openalex.org/I1289243028"]},{"raw_affiliation_string":"Oak Ridge National Laboratory, Oak Ridge, TN, USA","institution_ids":["https://openalex.org/I1289243028"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5073394499","display_name":"Steven Hamilton","orcid":"https://orcid.org/0000-0003-3542-114X"},"institutions":[{"id":"https://openalex.org/I1289243028","display_name":"Oak Ridge National Laboratory","ror":"https://ror.org/01qz5mb56","country_code":"US","type":"facility","lineage":["https://openalex.org/I1289243028","https://openalex.org/I1330989302","https://openalex.org/I39565521","https://openalex.org/I4210159294"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Steven Hamilton","raw_affiliation_strings":["Oak Ridge National Laboratory","Oak Ridge National Laboratory, Oak Ridge, TN, USA"],"raw_orcid":"https://orcid.org/0000-0003-3542-114X","affiliations":[{"raw_affiliation_string":"Oak Ridge National Laboratory","institution_ids":["https://openalex.org/I1289243028"]},{"raw_affiliation_string":"Oak Ridge National Laboratory, Oak Ridge, TN, USA","institution_ids":["https://openalex.org/I1289243028"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5000916423"],"corresponding_institution_ids":["https://openalex.org/I1289243028"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.3134949,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"40","issue":"4","first_page":"466","last_page":"486"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10597","display_name":"Nuclear reactor physics and engineering","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10597","display_name":"Nuclear reactor physics and engineering","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11949","display_name":"Nuclear Physics and Applications","score":0.9944999814033508,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13465","display_name":"Graphite, nuclear technology, radiation studies","score":0.9890999794006348,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/monte-carlo-method","display_name":"Monte Carlo method","score":0.7171000242233276},{"id":"https://openalex.org/keywords/tracking","display_name":"Tracking (education)","score":0.6510999798774719},{"id":"https://openalex.org/keywords/neutron-transport","display_name":"Neutron transport","score":0.5644000172615051},{"id":"https://openalex.org/keywords/neutron","display_name":"Neutron","score":0.5302000045776367},{"id":"https://openalex.org/keywords/fission","display_name":"Fission","score":0.5152000188827515},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.36149999499320984}],"concepts":[{"id":"https://openalex.org/C19499675","wikidata":"https://www.wikidata.org/wiki/Q232207","display_name":"Monte Carlo method","level":2,"score":0.7171000242233276},{"id":"https://openalex.org/C2775936607","wikidata":"https://www.wikidata.org/wiki/Q466845","display_name":"Tracking (education)","level":2,"score":0.6510999798774719},{"id":"https://openalex.org/C66963500","wikidata":"https://www.wikidata.org/wiki/Q3338735","display_name":"Neutron transport","level":3,"score":0.5644000172615051},{"id":"https://openalex.org/C152568617","wikidata":"https://www.wikidata.org/wiki/Q2348","display_name":"Neutron","level":2,"score":0.5302000045776367},{"id":"https://openalex.org/C12294094","wikidata":"https://www.wikidata.org/wiki/Q929080","display_name":"Fission","level":3,"score":0.5152000188827515},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4788999855518341},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.4189999997615814},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.36149999499320984},{"id":"https://openalex.org/C154586513","wikidata":"https://www.wikidata.org/wiki/Q4420972","display_name":"Tracking system","level":3,"score":0.3515999913215637},{"id":"https://openalex.org/C44154836","wikidata":"https://www.wikidata.org/wiki/Q45045","display_name":"Simulation","level":1,"score":0.3447999954223633},{"id":"https://openalex.org/C185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","level":1,"score":0.34450000524520874},{"id":"https://openalex.org/C2780598303","wikidata":"https://www.wikidata.org/wiki/Q65921492","display_name":"Flexibility (engineering)","level":2,"score":0.34060001373291016},{"id":"https://openalex.org/C459310","wikidata":"https://www.wikidata.org/wiki/Q117801","display_name":"Computational science","level":1,"score":0.33239999413490295},{"id":"https://openalex.org/C116915560","wikidata":"https://www.wikidata.org/wiki/Q83504","display_name":"Nuclear engineering","level":1,"score":0.3181000053882599},{"id":"https://openalex.org/C30475298","wikidata":"https://www.wikidata.org/wiki/Q909554","display_name":"Computational physics","level":1,"score":0.3059000074863434},{"id":"https://openalex.org/C541523362","wikidata":"https://www.wikidata.org/wiki/Q80877","display_name":"Nuclear reactor","level":2,"score":0.3043000102043152},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.2962999939918518},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.28769999742507935},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2743000090122223},{"id":"https://openalex.org/C121864883","wikidata":"https://www.wikidata.org/wiki/Q677916","display_name":"Statistical physics","level":1,"score":0.26350000500679016},{"id":"https://openalex.org/C2777904410","wikidata":"https://www.wikidata.org/wiki/Q7397","display_name":"Software","level":2,"score":0.25769999623298645}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1177/10943420251377295","is_oa":false,"landing_page_url":"https://doi.org/10.1177/10943420251377295","pdf_url":null,"source":{"id":"https://openalex.org/S60606485","display_name":"The International Journal of High Performance Computing Applications","issn_l":"1094-3420","issn":["1094-3420","1741-2846"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320017","host_organization_name":"SAGE Publishing","host_organization_lineage":["https://openalex.org/P4310320017"],"host_organization_lineage_names":["SAGE Publishing"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The International Journal of High Performance Computing Applications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":25,"referenced_works":["https://openalex.org/W8207743","https://openalex.org/W1497695555","https://openalex.org/W1967580792","https://openalex.org/W2009053704","https://openalex.org/W2041256929","https://openalex.org/W2101746450","https://openalex.org/W2165558283","https://openalex.org/W2221005642","https://openalex.org/W2405685469","https://openalex.org/W2476178234","https://openalex.org/W2908204402","https://openalex.org/W2910998806","https://openalex.org/W2988374682","https://openalex.org/W3006476973","https://openalex.org/W3080802741","https://openalex.org/W3118327259","https://openalex.org/W3157374924","https://openalex.org/W3181319593","https://openalex.org/W3195783485","https://openalex.org/W4206480593","https://openalex.org/W4206923792","https://openalex.org/W4285381476","https://openalex.org/W4289112892","https://openalex.org/W4313561283","https://openalex.org/W4388699182"],"related_works":[],"abstract_inverted_index":{"Monte":[0],"Carlo":[1],"(MC)":[2],"neutron":[3],"transport":[4],"provides":[5],"detailed":[6],"estimates":[7],"of":[8,40,92,126],"radiological":[9],"quantities":[10],"within":[11],"fission":[12],"reactors.":[13,104],"This":[14,105],"involves":[15],"tracking":[16,33,61,94,119,141],"individual":[17],"neutrons":[18],"through":[19],"a":[20,73,98,134,144],"computational":[21],"geometry.":[22],"CPU-based":[23],"MC":[24,54],"codes":[25],"use":[26],"multiple":[27],"polymorphic":[28],"tracker":[29,75,100,129],"types":[30],"with":[31,62,67,77,133],"different":[32],"algorithms":[34],"to":[35,58],"exploit":[36],"the":[37,50,81,93,127],"repeated":[38],"configurations":[39],"reactors,":[41],"but":[42],"virtual":[43,68],"function":[44],"calls":[45],"have":[46],"high":[47],"overhead":[48],"on":[49],"GPU.":[51],"The":[52,124],"Shift":[53],"code":[55],"was":[56],"modified":[57],"support":[59],"GPU-based":[60],"three":[63,109],"strategies:":[64],"dynamic":[65],"polymorphism":[66],"functions,":[69],"static":[70],"polymorphism,":[71],"and":[72,89],"single":[74,128],"type":[76],"tree-based":[78],"acceleration.":[79],"On":[80],"Frontier":[82],"supercomputer":[83],"these":[84],"methods":[85,110],"achieve":[86],"77.8%,":[87],"91.2%,":[88],"83.4%,":[90],"respectively,":[91],"rate":[95],"obtained":[96],"using":[97],"specialized":[99],"optimized":[101],"for":[102,113],"rectilinear-grid-based":[103],"indicates":[106],"that":[107],"all":[108],"are":[111],"suitable":[112],"typical":[114],"reactor":[115],"problems":[116],"in":[117],"which":[118],"does":[120],"not":[121],"dominate":[122],"runtime.":[123],"flexibility":[125],"method":[130],"is":[131],"highlighted":[132],"hexagonal-grid":[135],"microreactor":[136],"problem,":[137],"performed":[138],"without":[139],"hexagonal-grid-specific":[140],"routines,":[142],"providing":[143],"2.19\u00d7":[145],"speedup":[146],"over":[147],"CPU":[148],"execution.":[149]},"counts_by_year":[],"updated_date":"2026-06-20T20:08:15.867695","created_date":"2025-10-10T00:00:00"}
