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Knowledge in shared memory systems (preliminary version)

Michael Merritt, Gadi Taubenfeld
1991 Proceedings of the tenth annual ACM symposium on Principles of distributed computing - PODC '91  
In addition we generalize a known impossibility result, and show that results about how knowledge can be gained and lost in message passing systems also hold for shared memory systems.  ...  We study the relation between knowledge and space. That is, we analyze how much shared memory space is needed in order to learn certain kinds of facts.  ...  of the notion of knowledge for reasoning about shared memory systems.  ... 
doi:10.1145/112600.112617 dblp:conf/podc/MerrittT91 fatcat:tf75hppxnbghlgul4bsdffadni

Knowledge states for the caching problem in shared memory multiprocessor systems

W.W. Bein, L.L. Larmore, R. Reischuk
2004 7th International Symposium on Parallel Architectures, Algorithms and Networks, 2004. Proceedings.  
Multiprocessor systems with a global shared memory provide logically uniform data access. To hide latencies when accessing global memory each processor makes use of a private cache.  ...  Several copies of a data item may exist concurrently in the system. To guarantee consistency when updating an item a processor must invalidate copies of the item in other private caches.  ...  [7] have answered this question in the affirmative.  ... 
doi:10.1109/ispan.2004.1300497 dblp:conf/ispan/BeinLR04 fatcat:5cpllbxqvre5pmwdsoz25a4spe


2009 International Journal of Foundations of Computer Science  
Multiprocessor systems with a global shared memory provide logically uniform data access. To hide latencies when accessing global memory each processor makes use of a private cache.  ...  Several copies of a data item may exist concurrently in the system. To guarantee consistency when updating an item a processor must invalidate copies of the item in other private caches.  ...  [7] have answered this question in the affirmative.  ... 
doi:10.1142/s0129054109006504 fatcat:xehre2bblbde3bdqpfiu4p4t54

Understanding and using asynchronous message passing (Preliminary Version)

Richard D. Schlichting, Fred B. Schneider
1982 Proceedings of the first ACM SIGACT-SIGOPS symposium on Principles of distributed computing - PODC '82  
David Cries, Leslie Lamport and Gary Levin have been invaluable in formulating the ideas in this paper.  ...  In sLm~nary, the absence of shared memory complicates the programming task without a corresponding simplification in the proof.  ...  Primitives intended for communication and synchronization with shared memory allow processes to interrogate each others' states to effect synchronization.  ... 
doi:10.1145/800220.806691 dblp:conf/podc/SchlichtingS82 fatcat:4dy3lrc3o5cbdn7lkk36o5xhha

Cheating husbands and other stories (preliminary version)

Yoram Moses, Danny Dolev, Joseph Y. Halpern
1985 Proceedings of the fourth annual ACM symposium on Principles of distributed computing - PODC '85  
By looking at a number of variants of the clteatir~g Itusbcads puzzle, we illustrate the subtle relationship between knowledge, communication, and action in a distributed environment.  ...  The interesting case of Theorem 10{c) was suggested by the audience at a talk delivered in Tel Aviv University.  ...  Acknowledgements: We thank Martin Gardner, Bengt Jonsson, Don Knuth, and Moshe Vardi for insightful comments on earlier versions.  ... 
doi:10.1145/323596.323616 dblp:conf/podc/MosesDH85 fatcat:tazqs26p6ndrjikttflxthd7k4

Analysing Sanity of Requirements for Avionics Systems (Preliminary Version) [article]

Jiří Barnat, Petr Bauch, Nikola Beneš, Luboš Brim, Jan Beran, Tomáš Kratochvíla
2015 arXiv   pre-print
The usefulness of our completeness evaluation is demonstrated in a case study of an aeroplane control system.  ...  In this work we build on the fact that functional requirements can be expressed in temporal logic and we propose new sanity checking techniques that automatically detect flaws and suggest improvements  ...  The research leading to these results has received funding from the European Union's Seventh Framework Program (FP7/2007-2013) for CRYSTAL -Critical System Engineering Acceleration Joint Undertaking under  ... 
arXiv:1510.02669v1 fatcat:7td55isojrhyxcd5k4bqdcpxhu

A Preliminary Validation of the Polish Version of the Social Media Fatigue Scale

Agata H Świątek, Małgorzata Małgorzata Szcześniak, Shiyi Zhang, Hanna Borkowska
2021 Psychology Research and Behavior Management  
The Polish version of the SMFS presented satisfactory psychometric properties, showing many similarities with the original Chinese version of the SMFS.  ...  The main aim of the study was to establish a latent structure of the Social Media Fatigue Scale (SMFS) and to identify whether the Polish version is congruent with the Chinese version.  ...  After that, bilingual translators without prior knowledge of the questionnaire did three back-translations which were found to be in agreement with the source version.  ... 
doi:10.2147/prbm.s312897 pmid:34140816 pmcid:PMC8204136 fatcat:pyqcnifj4zepbfufck5uhfoewy

Planning in Knowledge Intensive Contexts: Systems Supporting Memory Tracing

Adele Celino, Grazia Concilio, Anna De Liddo
2008 2008 3rd International Conference on Information and Communication Technologies: From Theory to Applications  
In order to take into account the temporal dimension of knowledge in plan generation, and not only in the plan itself, we designed MESS, a MEmory Support System able to sustain a dynamic representation  ...  In this paper we discuss the theoretical environment we referred while designing MESS and describe the system architecture.  ...  Aims and scopes MESS is a process memory support system designed according to two principles: • knowledge is not important in itself but it make sense in the underlying context of knowledge and in the  ... 
doi:10.1109/ictta.2008.4530316 fatcat:dqzo236bbjglfiumnzwpljig7u

A Preliminary Validation of the Chinese Version of the Information Technology Identity Scale

Peng Wang, Haotian Liu, Xiao Wang, Xiqing Yuan, Yu Sun, Li Xiao, Wenxuan Li, Chong Ma
The Chinese version of the information technology identity scale presented satisfactory psychometric properties and shared many similarities with the original version.  ...  The main aim of the study was to revise Carter's IT Identity Scale in the context of Chinese cultural background and to determine whether the Chinese version is congruent with the English version.  ...  original and translated versions.  ... 
doi:10.2147/prbm.s352365 pmid:35368422 pmcid:PMC8965015 fatcat:yakvlhhkqndb7olzouix5llece

InterWeave: A Middleware System for Distributed Shared State [chapter]

DeQing Chen, Sandhya Dwarkadas, Srinivasan Parthasarathy, Eduardo Pinheiro, Michael L. Scott
2000 Lecture Notes in Computer Science  
In InterWeave, each shared segment evolves through a series of consistent versions.  ...  As an alternative to message passing, Rochester's InterWeave system allows the programmer to map shared segments into programs spread across heterogeneous, distributed machines.  ...  In the version of the application that uses hand-written message passing, this knowledge is embedded in application source code.  ... 
doi:10.1007/3-540-40889-4_16 fatcat:5aa2v2kdtnan5cobnx2j6cdygm

Validation results of a self-maintained cardiology collaborative tool

E. del Hoyo-Barbolla, E. Conde, M.T. Arredondo, E. Villalba, M. Martinez-Selles, M.I. Mene
2005 Computers in Cardiology, 2005  
This paper presents the results and lessons learnt from Health Memory (HM), a self-maintained multidisciplinary system that focuses on cardiology.  ...  Excellence in care optimisation in modern cardiology is a twofold issue that involves both the collaboration of numerous communities that benefit from collaborative work spaces as well as life-long education  ...  Acknowledgements This work has been performed in the framework of the IST project Health Memory (IST-2001-38181), which is partly funded by the European Commission.  ... 
doi:10.1109/cic.2005.1588081 fatcat:6ulfhsakxnfuzpd3tgr3xx2czy

Metatool 5.0: fast and flexible elementary modes analysis

A. v. Kamp, S. Schuster
2006 Bioinformatics  
In recent years, new approaches to calculating elementary modes in biochemical reaction networks have been developed.  ...  The performance of Metatool has been significantly increased and the new version 5.0 can now be run inside the GNU octave or Matlab environments to allow more flexible usage and integration with other  ...  The increase in speed and the reduction in memory requirements allows one to tackle larger reaction systems than before.  ... 
doi:10.1093/bioinformatics/btl267 pmid:16731697 fatcat:edwvfefr4fgudhiq7v32rpjas4


Jean-Philippe Martin, Christopher J. Rossbach, Michael Isard
2011 Proceedings of the Second Asia-Pacific Workshop on Systems - APSys '11  
We describe work in progress on the Spectre system which aims to provide high performance computing over distributed shared memory, targeting workloads such as graph algorithms for which functional or  ...  We outline the Spectre design and provide preliminary results from a microbenchmark to motivate the approach.  ...  The state of shared objects is managed using a transactional memory system in order to support aggressive speculation.  ... 
doi:10.1145/2103799.2103821 dblp:conf/apsys/MartinRI11 fatcat:u5uknv3mqbaipgmf5k655zscvq

Large Pheromones: A Case Study with Multi-agent Physical A* [chapter]

Ariel Felner, Yaron Shoshani, Israel A. Wagner, Alfred M. Bruckstein
2004 Lecture Notes in Computer Science  
We show that with this model of communication the behavior of a multi-agent system is almost as good as with complete knowledge sharing.  ...  Previous work assumed a complete sharing of knowledge between agents.  ...  Introduction This paper introduces the notion of large pheromones as a model of communication and global knowledge sharing in multi-agent systems.  ... 
doi:10.1007/978-3-540-28646-2_36 fatcat:log5s6opjjb55pds5ndekvdtcq

Preliminary Experiments with XKaapi on Intel Xeon Phi Coprocessor

Joao V.F. Lima, Francois Broquedis, Thierry Gautier, Bruno Raffin
2013 2013 25th International Symposium on Computer Architecture and High Performance Computing  
associated runtime systems.  ...  In that case, we observe substantial gains with up to 180 hardware threads over the state of the art MKL, with a 47% performance increase for 60 hardware threads.  ...  Tasks share data if they have access to the same memory region. A memory region is defined as a set of addresses in the process virtual address space.  ... 
doi:10.1109/sbac-pad.2013.28 dblp:conf/sbac-pad/LimaBGR13 fatcat:i2ie22b7ubcahcj3p2g6dhuweq
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