{"id":"https://openalex.org/W2921203665","doi":"https://doi.org/10.1145/3295816.3295819","title":"Evaluation of NTP/PTP fine-grain synchronization performance in HPC clusters","display_name":"Evaluation of NTP/PTP fine-grain synchronization performance in HPC clusters","publication_year":2018,"publication_date":"2018-11-04","ids":{"openalex":"https://openalex.org/W2921203665","doi":"https://doi.org/10.1145/3295816.3295819","mag":"2921203665"},"language":"en","primary_location":{"id":"doi:10.1145/3295816.3295819","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3295816.3295819","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2nd Workshop on AutotuniNg and aDaptivity AppRoaches for Energy efficient HPC Systems","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://hdl.handle.net/20.500.11850/306928","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5061064853","display_name":"Antonio Libri","orcid":"https://orcid.org/0000-0002-8511-5231"},"institutions":[{"id":"https://openalex.org/I35440088","display_name":"ETH Zurich","ror":"https://ror.org/05a28rw58","country_code":"CH","type":"education","lineage":["https://openalex.org/I2799323385","https://openalex.org/I35440088"]}],"countries":["CH"],"is_corresponding":true,"raw_author_name":"Antonio Libri","raw_affiliation_strings":["ETH Zurich Zurich, Switzerland"],"affiliations":[{"raw_affiliation_string":"ETH Zurich Zurich, Switzerland","institution_ids":["https://openalex.org/I35440088"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047906923","display_name":"Andrea Bartolini","orcid":"https://orcid.org/0000-0002-1148-2450"},"institutions":[{"id":"https://openalex.org/I9360294","display_name":"University of Bologna","ror":"https://ror.org/01111rn36","country_code":"IT","type":"education","lineage":["https://openalex.org/I9360294"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Andrea Bartolini","raw_affiliation_strings":["University of Bologna Bologna, Italy"],"affiliations":[{"raw_affiliation_string":"University of Bologna Bologna, Italy","institution_ids":["https://openalex.org/I9360294"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5002332287","display_name":"Daniele Cesarini","orcid":"https://orcid.org/0000-0003-1294-372X"},"institutions":[{"id":"https://openalex.org/I9360294","display_name":"University of Bologna","ror":"https://ror.org/01111rn36","country_code":"IT","type":"education","lineage":["https://openalex.org/I9360294"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Daniele Cesarini","raw_affiliation_strings":["University of Bologna Bologna, Italy"],"affiliations":[{"raw_affiliation_string":"University of Bologna Bologna, Italy","institution_ids":["https://openalex.org/I9360294"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5043408422","display_name":"Luca Benini","orcid":"https://orcid.org/0000-0001-8068-3806"},"institutions":[{"id":"https://openalex.org/I35440088","display_name":"ETH Zurich","ror":"https://ror.org/05a28rw58","country_code":"CH","type":"education","lineage":["https://openalex.org/I2799323385","https://openalex.org/I35440088"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Luca Benini","raw_affiliation_strings":["ETH Zurich Zurich, Switzerland"],"affiliations":[{"raw_affiliation_string":"ETH Zurich Zurich, Switzerland","institution_ids":["https://openalex.org/I35440088"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5061064853"],"corresponding_institution_ids":["https://openalex.org/I35440088"],"apc_list":null,"apc_paid":null,"fwci":1.2917,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.83368256,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12216","display_name":"Network Time Synchronization Technologies","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T12216","display_name":"Network Time Synchronization Technologies","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T10772","display_name":"Distributed systems and fault tolerance","score":0.9905999898910522,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T10933","display_name":"Real-Time Systems Scheduling","score":0.9416000247001648,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"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":0.7789767980575562},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.7294721603393555},{"id":"https://openalex.org/keywords/supercomputer","display_name":"Supercomputer","score":0.6066045165061951},{"id":"https://openalex.org/keywords/server","display_name":"Server","score":0.5909467935562134},{"id":"https://openalex.org/keywords/synchronization","display_name":"Synchronization (alternating current)","score":0.5783216953277588},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.5766595602035522},{"id":"https://openalex.org/keywords/scheduling","display_name":"Scheduling (production processes)","score":0.5380961298942566},{"id":"https://openalex.org/keywords/software","display_name":"Software","score":0.5197810530662537},{"id":"https://openalex.org/keywords/exploit","display_name":"Exploit","score":0.5184094905853271},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.4718568027019501},{"id":"https://openalex.org/keywords/multithreading","display_name":"Multithreading","score":0.4386250376701355},{"id":"https://openalex.org/keywords/clock-synchronization","display_name":"Clock synchronization","score":0.4191189706325531},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.35679173469543457},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.3379333019256592},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.26619741320610046},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.20903652906417847},{"id":"https://openalex.org/keywords/thread","display_name":"Thread (computing)","score":0.1580120325088501}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7789767980575562},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.7294721603393555},{"id":"https://openalex.org/C83283714","wikidata":"https://www.wikidata.org/wiki/Q121117","display_name":"Supercomputer","level":2,"score":0.6066045165061951},{"id":"https://openalex.org/C93996380","wikidata":"https://www.wikidata.org/wiki/Q44127","display_name":"Server","level":2,"score":0.5909467935562134},{"id":"https://openalex.org/C2778562939","wikidata":"https://www.wikidata.org/wiki/Q1298791","display_name":"Synchronization (alternating current)","level":3,"score":0.5783216953277588},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.5766595602035522},{"id":"https://openalex.org/C206729178","wikidata":"https://www.wikidata.org/wiki/Q2271896","display_name":"Scheduling (production processes)","level":2,"score":0.5380961298942566},{"id":"https://openalex.org/C2777904410","wikidata":"https://www.wikidata.org/wiki/Q7397","display_name":"Software","level":2,"score":0.5197810530662537},{"id":"https://openalex.org/C165696696","wikidata":"https://www.wikidata.org/wiki/Q11287","display_name":"Exploit","level":2,"score":0.5184094905853271},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.4718568027019501},{"id":"https://openalex.org/C201410400","wikidata":"https://www.wikidata.org/wiki/Q1064412","display_name":"Multithreading","level":3,"score":0.4386250376701355},{"id":"https://openalex.org/C129891060","wikidata":"https://www.wikidata.org/wiki/Q1513059","display_name":"Clock synchronization","level":4,"score":0.4191189706325531},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.35679173469543457},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.3379333019256592},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.26619741320610046},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.20903652906417847},{"id":"https://openalex.org/C138101251","wikidata":"https://www.wikidata.org/wiki/Q213092","display_name":"Thread (computing)","level":2,"score":0.1580120325088501},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0},{"id":"https://openalex.org/C21547014","wikidata":"https://www.wikidata.org/wiki/Q1423657","display_name":"Operations management","level":1,"score":0.0},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.1145/3295816.3295819","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3295816.3295819","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2nd Workshop on AutotuniNg and aDaptivity AppRoaches for Energy efficient HPC Systems","raw_type":"proceedings-article"},{"id":"pmh:oai:cris.unibo.it:11585/666074","is_oa":false,"landing_page_url":"http://hdl.handle.net/11585/666074","pdf_url":null,"source":{"id":"https://openalex.org/S4306402579","display_name":"Archivio istituzionale della ricerca (Alma Mater Studiorum Universit\u00e0 di Bologna)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210117483","host_organization_name":"Istituto di Ematologia di Bologna","host_organization_lineage":["https://openalex.org/I4210117483"],"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":"info:eu-repo/semantics/conferenceObject"},{"id":"pmh:oai:www.research-collection.ethz.ch:20.500.11850/306928","is_oa":true,"landing_page_url":"http://hdl.handle.net/20.500.11850/306928","pdf_url":null,"source":{"id":"https://openalex.org/S4306402302","display_name":"Repository for Publications and Research Data (ETH Zurich)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I35440088","host_organization_name":"ETH Zurich","host_organization_lineage":["https://openalex.org/I35440088"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/conferenceObject"},{"id":"pmh:oai:www.research-collection.ethz.ch:20.500.11850/333067","is_oa":true,"landing_page_url":"http://hdl.handle.net/20.500.11850/333067","pdf_url":null,"source":{"id":"https://openalex.org/S4306402302","display_name":"Repository for Publications and Research Data (ETH Zurich)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I35440088","host_organization_name":"ETH Zurich","host_organization_lineage":["https://openalex.org/I35440088"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"ACM International Conference Proceeding Series","raw_type":"info:eu-repo/semantics/conferenceObject"},{"id":"doi:10.3929/ethz-b-000306928","is_oa":true,"landing_page_url":"https://doi.org/10.3929/ethz-b-000306928","pdf_url":null,"source":{"id":"https://openalex.org/S7407051236","display_name":"ETH Z\u00fcrich Research Collection","issn_l":null,"issn":[],"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":"article-journal"}],"best_oa_location":{"id":"pmh:oai:www.research-collection.ethz.ch:20.500.11850/306928","is_oa":true,"landing_page_url":"http://hdl.handle.net/20.500.11850/306928","pdf_url":null,"source":{"id":"https://openalex.org/S4306402302","display_name":"Repository for Publications and Research Data (ETH Zurich)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I35440088","host_organization_name":"ETH Zurich","host_organization_lineage":["https://openalex.org/I35440088"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/conferenceObject"},"sustainable_development_goals":[{"score":0.6200000047683716,"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W1556635491","https://openalex.org/W1802974809","https://openalex.org/W2041583166","https://openalex.org/W2050303182","https://openalex.org/W2093999850","https://openalex.org/W2105095338","https://openalex.org/W2120145199","https://openalex.org/W2156850758","https://openalex.org/W2164945552","https://openalex.org/W2288632536","https://openalex.org/W2521021949","https://openalex.org/W2733814302","https://openalex.org/W2762279116","https://openalex.org/W2765870706","https://openalex.org/W2801672556","https://openalex.org/W2805698969","https://openalex.org/W2883745209","https://openalex.org/W4230372634","https://openalex.org/W6633103620"],"related_works":["https://openalex.org/W2384867379","https://openalex.org/W2329539859","https://openalex.org/W3191490922","https://openalex.org/W2227905990","https://openalex.org/W2765823764","https://openalex.org/W3214280620","https://openalex.org/W2794038527","https://openalex.org/W2151092287","https://openalex.org/W2523801036","https://openalex.org/W2505959877"],"abstract_inverted_index":{"Fine-grain":[0],"time":[1],"synchronization":[2,54,223],"is":[3,58,128,140],"important":[4],"to":[5,42,65,83,218],"address":[6],"several":[7],"challenges":[8],"in":[9,24,71,120,137,190],"today":[10],"and":[11,36,100,110,117,156,174,203,206,214],"future":[12],"High":[13],"Performance":[14],"Computing":[15],"(HPC)":[16],"centers.":[17],"Among":[18],"the":[19,78,81,92],"many,":[20],"(i)":[21],"co-scheduling":[22],"techniques":[23],"parallel":[25],"applications":[26],"with":[27,162,172,199],"sensitive":[28],"bulk":[29],"synchronous":[30],"workloads,":[31],"(ii)":[32],"performance":[33,68,136,198],"analysis":[34],"tools":[35],"(iii)":[37],"autotuning":[38],"strategies":[39],"that":[40],"want":[41],"exploit":[43],"State-of-the-Art":[44],"(SoA)":[45],"high":[46,221],"resolution":[47],"monitoring":[48,193],"systems,":[49],"are":[50,88,105,184],"three":[51],"examples":[52],"where":[53],"of":[55,74,113,134,153,179],"few":[56],"microseconds":[57],"required.":[59],"Previous":[60],"works":[61],"report":[62,211],"custom":[63],"solutions":[64],"reach":[66,147,219],"this":[67],"without":[69],"incurring":[70],"extra":[72,126],"cost":[73],"dedicated":[75],"hardware.":[76],"On":[77],"other":[79],"hand,":[80],"benefits":[82],"use":[84],"robust":[85],"standards":[86],"which":[87],"widely":[89],"supported":[90],"by":[91],"community,":[93],"such":[94],"as":[95],"Network":[96],"Time":[97,102],"Protocol":[98,103],"(NTP)":[99],"Precision":[101],"(PTP),":[104],"evident.":[106],"With":[107],"today's":[108],"software":[109,212],"hardware":[111,127],"improvements":[112],"these":[114,220],"two":[115,200],"protocols":[116,183],"off-the-shelf":[118],"integration":[119],"SoA":[121,191],"HPC":[122,192],"servers":[123],"no":[124],"expensive":[125],"required":[129],"anymore,":[130],"but":[131],"an":[132,151],"evaluation":[133],"their":[135,197],"supercomputing":[138],"clusters":[139],"needed.":[141],"Our":[142],"results":[143],"show":[144],"NTP":[145],"can":[146,167],"on":[148],"computing":[149],"nodes":[150],"accuracy":[152],"2.6":[154],"\u03bcs":[155],"a":[157],"precision":[158,222],"below":[159,170],"2.7":[160],"\u03bcs,":[161],"negligible":[163],"overhead.":[164,208],"These":[165],"values":[166],"be":[168],"bounded":[169],"microseconds,":[171],"PTP":[173],"low-cost":[175,215],"switches":[176],"(no":[177],"needs":[178],"GPS":[180],"antenna).":[181],"Both":[182],"also":[185],"suitable":[186],"for":[187],"data":[188],"time-stamping":[189],"infrastructures.":[194],"We":[195],"validate":[196],"real":[201],"use-cases,":[202],"quantify":[204],"scalability":[205],"CPU":[207],"Finally,":[209],"we":[210],"settings":[213],"network":[216],"configuration":[217],"results.":[224]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
