{"volume":"20-22","abstract":[{"lang":"eng","text":"Fault-tolerant distributed algorithms play an important role in many critical/high-availability applications. These algorithms are notoriously difficult to implement correctly, due to asynchronous communication and the occurrence of faults, such as the network dropping messages or computers crashing. We introduce PSYNC, a domain specific language based on the Heard-Of model, which views asynchronous faulty systems as synchronous ones with an adversarial environment that simulates asynchrony and faults by dropping messages. We define a runtime system for PSYNC that efficiently executes on asynchronous networks. We formalize the relation between the runtime system and PSYNC in terms of observational refinement. The high-level lockstep abstraction introduced by PSYNC simplifies the design and implementation of fault-tolerant distributed algorithms and enables automated formal verification. We have implemented an embedding of PSYNC in the SCALA programming language with a runtime system for asynchronous networks. We show the applicability of PSYNC by implementing several important fault-tolerant distributed algorithms and we compare the implementation of consensus algorithms in PSYNC against implementations in other languages in terms of code size, runtime efficiency, and verification."}],"date_created":"2018-12-11T11:52:01Z","language":[{"iso":"eng"}],"publication_status":"published","scopus_import":1,"_id":"1439","oa":1,"department":[{"_id":"ToHe"}],"day":"11","publisher":"ACM","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","publist_id":"5759","date_updated":"2021-01-12T06:50:45Z","oa_version":"Preprint","alternative_title":["ACM SIGPLAN Notices"],"conference":{"name":"POPL: Principles of Programming Languages","end_date":"2016-01-22","location":"St. Petersburg, FL, USA","start_date":"2016-01-20"},"author":[{"first_name":"Cezara","last_name":"Dragoi","full_name":"Dragoi, Cezara","id":"2B2B5ED0-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","first_name":"Thomas A","last_name":"Henzinger"},{"id":"4397AC76-F248-11E8-B48F-1D18A9856A87","full_name":"Zufferey, Damien","last_name":"Zufferey","first_name":"Damien","orcid":"0000-0002-3197-8736"}],"status":"public","acknowledgement":"Damien Zufferey was supported by DARPA (Grants FA8650-11-C-7192 and FA8650-15-C-7564) and NSF (Grant CCF-1138967). ","page":"400 - 415","type":"conference","doi":"10.1145/2837614.2837650","date_published":"2016-01-11T00:00:00Z","citation":{"ieee":"C. Dragoi, T. A. Henzinger, and D. Zufferey, “PSYNC: A partially synchronous language for fault-tolerant distributed algorithms,” presented at the POPL: Principles of Programming Languages, St. Petersburg, FL, USA, 2016, vol. 20–22, pp. 400–415.","ama":"Dragoi C, Henzinger TA, Zufferey D. PSYNC: A partially synchronous language for fault-tolerant distributed algorithms. In: Vol 20-22. ACM; 2016:400-415. doi:<a href=\"https://doi.org/10.1145/2837614.2837650\">10.1145/2837614.2837650</a>","short":"C. Dragoi, T.A. Henzinger, D. Zufferey, in:, ACM, 2016, pp. 400–415.","mla":"Dragoi, Cezara, et al. <i>PSYNC: A Partially Synchronous Language for Fault-Tolerant Distributed Algorithms</i>. Vol. 20–22, ACM, 2016, pp. 400–15, doi:<a href=\"https://doi.org/10.1145/2837614.2837650\">10.1145/2837614.2837650</a>.","apa":"Dragoi, C., Henzinger, T. A., &#38; Zufferey, D. (2016). PSYNC: A partially synchronous language for fault-tolerant distributed algorithms (Vol. 20–22, pp. 400–415). Presented at the POPL: Principles of Programming Languages, St. Petersburg, FL, USA: ACM. <a href=\"https://doi.org/10.1145/2837614.2837650\">https://doi.org/10.1145/2837614.2837650</a>","ista":"Dragoi C, Henzinger TA, Zufferey D. 2016. PSYNC: A partially synchronous language for fault-tolerant distributed algorithms. POPL: Principles of Programming Languages, ACM SIGPLAN Notices, vol. 20–22, 400–415.","chicago":"Dragoi, Cezara, Thomas A Henzinger, and Damien Zufferey. “PSYNC: A Partially Synchronous Language for Fault-Tolerant Distributed Algorithms,” 20–22:400–415. ACM, 2016. <a href=\"https://doi.org/10.1145/2837614.2837650\">https://doi.org/10.1145/2837614.2837650</a>."},"main_file_link":[{"open_access":"1","url":"https://hal.inria.fr/hal-01251199/"}],"project":[{"name":"Quantitative Reactive Modeling","call_identifier":"FP7","_id":"25EE3708-B435-11E9-9278-68D0E5697425","grant_number":"267989"},{"call_identifier":"FWF","name":"The Wittgenstein Prize","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211"},{"call_identifier":"FWF","name":"Rigorous Systems Engineering","_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23"}],"quality_controlled":"1","title":"PSYNC: A partially synchronous language for fault-tolerant distributed algorithms","year":"2016","month":"01","ec_funded":1}