Vitus J. Leung

Discrete Math & Optimization

Author profile picture

Discrete Math & Optimization

vjleung@sandia.gov

Vitus J Leung

(505) 844-1896

Sandia National Laboratories, New Mexico
 P.O. Box 5800
 Albuquerque, NM 87185-1327

Biography

Research Interests:

  • On-line Algorithms
  • Computational Complexity
  • Analysis of Algorithms
  • Graph Theory
  • Combinatorics

Publications

  • Aksar, B., Zhang, Y., Ates, E., Aaziz, O., Schwaller, B., Brandt, J., Leung, V., Egele, M., Coskun, A., & Coskun, A. (2021). E2EWatch: End-to-end Anomaly Diagnosis Framework for Production HPC Systems [Conference Presenation]. https://doi.org/10.2172/1891960 Publication ID: 75468
  • Zhang, Y., Aksar, B., Aaziz, O., Schwaller, B., Brandt, J., Leung, V., Egele, M., Coskun, A., & Coskun, A. (2021). Using Monitoring Data to Improve HPC Performance via Network-Data-Driven Allocation [Conference Presenation]. https://doi.org/10.2172/1888952 Publication ID: 75862
  • Aksar, B., Zhang, Y., Ates, E., Aaziz, O., Schwaller, B., Brandt, J., Leung, V., Egele, M., Coskun, A., & Coskun, A. (2021). E2EWatch: End-to-end Anomaly Diagnosis Framework for Production HPC Systems [Conference Paper]. https://doi.org/10.1007/978-3-030-85665-6_5 Publication ID: 78838
  • Hart, W., Leung, V., & Leung, V. (2021). Strategies for Matching Process Models to Observational Data [Conference Presenation]. https://doi.org/10.2172/1876708 Publication ID: 78953
  • Ates, E., Aksar, B., Leung, V., Coskun, A.K., & Coskun, A.K. (2021). Counterfactual Explanations for Multivariate Time Series [Conference Presenation]. 2021 International Conference on Applied Artificial Intelligence, ICAPAI 2021. https://doi.org/10.2172/1866905 Publication ID: 78346
  • Ates, E., Aksar, B., Leung, V., Coskun, A., & Coskun, A. (2021). Counterfactual Explanations for Multivariate Time Series [Conference Proceeding]. https://doi.org/10.1109/ICAPAI49758.2021.9462056 Publication ID: 78162
  • Zhang, Y., Aksar, B., Aaziz, O., Schwaller, B., Brandt, J., Leung, V., Egele, M., Coskun, A.K., & Coskun, A.K. (2021). Using Monitoring Data to Improve HPC Performance via Network-Data-Driven Allocation [Conference Proceeding]. 2021 IEEE High Performance Extreme Computing Conference, HPEC 2021. https://doi.org/10.1109/HPEC49654.2021.9622783 Publication ID: 75467
  • Aksar, B., Zhang, Y., Ates, E., Schwaller, B., Aaziz, O., Leung, V., Brandt, J., Egele, M., Coskun, A.K., & Coskun, A.K. (2021). Proctor: A Semi-Supervised Performance Anomaly Diagnosis Framework for Production HPC Systems [Conference Proceeding]. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). https://doi.org/10.1007/978-3-030-78713-4_11 Publication ID: 78253
  • Ates, E., Aksar, B., Leung, V., Coskun, A., & Coskun, A. (2020). Explainable Machine Learning Frameworks for Managing HPC Systems [Conference Paper]. https://www.osti.gov/biblio/1830968 Publication ID: 71245
  • Ates, E., Aksar, B., Leung, V., Coskun, A., & Coskun, A. (2020). Explainable Machine Learning Frameworks for Managing HPC Systems [Conference Presenation]. https://doi.org/10.2172/1829224 Publication ID: 71490
  • Schwaller, B., Aksar, B., Aaziz, O., Ates, E., Brandt, J., Coskun, A., Egele, M., Leung, V., & Leung, V. (2019). A Machine Learning Approach to Understanding HPC Application Performance Variation [Conference Poster]. https://www.osti.gov/biblio/1642784 Publication ID: 65564
  • Aksar, B., Schwaller, B., Aaziz, O., Ates, E., Brandt, J., Coskun, A., Egele, M., Leung, V., & Leung, V. (2019). AD for Machine Learning Approach to Understanding HPC Application Performance Variation Poster [Conference Poster]. https://www.osti.gov/biblio/1642788 Publication ID: 65569
  • Vineyard, C., Green, S., Pedretti, K., Younge, A.J., Leung, V., & Leung, V. (2019). Machine Learning for System Software ? Can Computers Manage Computers? [Presentation]. https://www.osti.gov/biblio/1645723 Publication ID: 70311
  • Zhang, Y., Tuncer, O., Kaplan, F., Olcoz, K., Leung, V., Coskun, A., & Coskun, A. (2019). Level-Spread: A New Job Allocation Policy for Dragonfly Networks [Conference Poster]. https://doi.org/10.1109/IPDPS.2018.00121 Publication ID: 69500
  • Tuncer, O., Ates, E., Zhang, Y., Turk, A., Brandt, J., Leung, V., Egele, M., Coskun, A.K., & Coskun, A.K. (2019). Online Diagnosis of Performance Variation in HPC Systems Using Machine Learning. IEEE Transactions on Parallel and Distributed Systems, 30(4), pp. 883-896. https://doi.org/10.1109/TPDS.2018.2870403 Publication ID: 58912
  • Link, H., Richter, S.N., Leung, V., Brost, R., Phillips, C., Staid, A., & Staid, A. (2019). Statistical models of dengue fever [Conference Poster]. Communications in Computer and Information Science. https://doi.org/10.1007/978-981-13-6661-1_14 Publication ID: 60260
  • Brost, R., Carrier, E., Carroll, M., Groth, K., Kegelmeyer, W., Leung, V., Link, H., Patterson, A., Phillips, C., Richter, S., Robinson, D., Staid, A., Woodbridge, D., & Woodbridge, D. (2018). Adverse Event Prediction Using Graph-Augmented Temporal Analysis: Final Report. https://doi.org/10.2172/1481631 Publication ID: 59336
  • Link, H., Richter, S., Leung, V., Brost, R., Phillips, C., Staid, A., & Staid, A. (2018). Statistical Models of Dengue Fever [Conference Poster]. https://doi.org/10.1007/978-981-13-6661-1_14 Publication ID: 59609
  • Zhang, Y., Tuncer, O., Kaplan, F., Olcoz, K., Leung, V., Coskun, A.K., & Coskun, A.K. (2018). Level-spread: A new job allocation policy for dragonfly networks [Conference Poster]. Proceedings – 2018 IEEE 32nd International Parallel and Distributed Processing Symposium, IPDPS 2018. https://doi.org/10.1109/IPDPS.2018.00121 Publication ID: 60978
  • Ates, E., Tuncer, O., Turk, A., Leung, V., Brandt, J., Egele, M., Coskun, A., & Coskun, A. (2018). Taxonimist: Application Detection through Rich Monitoring Data [Conference Poster]. https://www.osti.gov/biblio/1526818 Publication ID: 62591
  • Tuncer, O., Ates, E., Zhang, Y., Turk, A., Brandt, J., Leung, V., Egele, M., Coskun, A., & Coskun, A. (2018). Detection and Diagnosis of Performance Variations [Presentation]. https://www.osti.gov/biblio/1497230 Publication ID: 60723
  • Brost, R., Leung, V., Link, H., Phillips, C., Staid, A., & Staid, A. (2018). Event Prediction Using Graph-Augmented Temporal Analysis [Conference Poster]. https://www.osti.gov/biblio/1498238 Publication ID: 60880
  • Ates, E., Tuncer, O., Turk, A., Leung, V., Brandt, J., Egele, M., Coskun, A.K., & Coskun, A.K. (2018). Taxonomist: Application Detection Through Rich Monitoring Data [Presentation]. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). https://doi.org/10.1007/978-3-319-96983-1_7 Publication ID: 69499
  • Unat, D., Dubey, A., Hoefler, T., Shalf, J.B., Abraham, M., Bianco, M., Chamberlain, B.L., Cledat, R., Edwards, H., Finkel, H., Fuerlinger, K., Hannig, F., Jeannot, E., Kamil, A., Keasler, J., Kelly, P.H.J., Leung, V., Ltaief, H., Maruyama, N., … Pericas, M. (2017). Trends in Data Locality Abstractions for HPC Systems. IEEE Transactions on Parallel and Distributed Systems, 28(10), pp. 3007-3020. https://doi.org/10.1109/tpds.2017.2703149 Publication ID: 55805
  • Tuncer, O., Zhang, Y., Leung, V., Coskun, A., & Coskun, A. (2017). Task Mapping on a Dragonfly Supercomputer [Conference Poster]. https://www.osti.gov/biblio/1464688 Publication ID: 57875
  • Brost, R., Leung, V., Link, H., Phillips, C., Staid, A., & Staid, A. (2017). Adverse event prediction using graph-augmented temporal analysis [Presentation]. https://www.osti.gov/biblio/1876734 Publication ID: 57942
  • Devine, K., Brandt, J., Deveci, M., Gentile, A., Leung, V., Olivier, S.L., Pedretti, K., Rajamanickam, S., Taylor, M., & Taylor, M. (2017). Task Placement to Reduce Application Communication Costs [Presentation]. https://www.osti.gov/biblio/1467790 Publication ID: 58152
  • Kaplan, F., Tuncer, O., Leung, V., Hemmert, K., Coskun, A.K., & Coskun, A.K. (2017). Unveiling the Interplay between Global Link Arrangements and Network Management Algorithms on Dragonfly Networks [Conference Poster]. Proceedings – 2017 17th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing, CCGRID 2017. https://doi.org/10.1109/CCGRID.2017.93 Publication ID: 54948
  • Kaplan, F., Tuncer, O., Leung, V., Hemmert, K., Coskun, A., & Coskun, A. (2017). Unveiling the Interplay Between Global Link Arrangements and Network Management Algorithms on Dragonfly Networks [Conference Poster]. https://doi.org/10.1109/CCGRID.2017.93 Publication ID: 57605
  • Leung, V. (2017). Beyond BUS-PASS [Presentation]. https://www.osti.gov/biblio/1462616 Publication ID: 57618
  • Tuncer, O., Ates, E., Zhang, Y., Turk, A., Brandt, J., Leung, V., Egele, M., Coskun, A., & Coskun, A. (2017). Diagnosing Performance Variations in HPC Architectures Using Machine Learning [Conference Poster]. https://www.osti.gov/biblio/1429161 Publication ID: 55391
  • Tuncer, O., Ates, E., Zhang, Y., Turk, A., Brandt, J., Leung, V., Egele, M., Coskun, A.K., & Coskun, A.K. (2017). Diagnosing performance variations in HPC applications using machine learning [Presentation]. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). https://doi.org/10.1007/978-3-319-58667-0_19 Publication ID: 53432
  • Ang, J., Barrett, R., Benner, R., Burke, D., Chan, C., Cook, J., Daley, C., Donofrio, D., Hammond, S.D., Hemmert, K., Hoekstra, R., Ibrahim, K., Kelly, S., Le, H., Leung, V., Michelogiannakis, G., Resnick, D., Rodrigues, A., Shalf, J., … Voskuilen, G. (2016). Abstract Machine Models and Proxy Architectures for Exascale Computing. https://doi.org/10.2172/1561498 Publication ID: 50766
  • Deveci, M., Devine, K., Boman, E., Leung, V., Rajamanickam, S., Taylor, M., & Taylor, M. (2016). Partitioning and Task Placement with Zoltan2 [Conference Poster]. https://www.osti.gov/biblio/1530505 Publication ID: 49313
  • Hastings, E., Rincon-Cruz, D., Spehlmann, M., Meyers, S., Xu, A., Bunde, D., Leung, V., & Leung, V. (2016). Comparing global link arrangements for Dragonfly networks [Conference Poster]. https://doi.org/10.1109/CLUSTER.2015.57 Publication ID: 48864
  • Hastings, E., Rincon-Cruz, D., Spehlmann, M., Meyers, S., Xu, A., Bunde, D., Leung, V., & Leung, V. (2016). Comparing global link arrangements for Dragonfly networks [Conference Poster]. https://doi.org/10.1109/CLUSTER.2015.57 Publication ID: 49085
  • Hastings, E., Rincon-Cruz, D., Spehlmann, M., Meyers, S., Xu, A., Bunde, D., Leung, V., & Leung, V. (2016). Comparing global link arrangements for Dragonfly networks [Presentation]. https://doi.org/10.1109/CLUSTER.2015.57 Publication ID: 48495
  • Balzuweit, E., Bunde, D.P., Leung, V., Finley, A., Lee, A.C.S., & Lee, A.C.S. (2016). Local search to improve coordinate-based task mapping. Parallel Computing, 51, pp. 67-78. https://doi.org/10.1016/j.parco.2015.10.012 Publication ID: 45711
  • Hastings, E., Rincon-Cruz, D., Spehlmann, M., Meyers, S., Xu, A., Bunde, D.P., Leung, V., & Leung, V. (2015). Comparing global link arrangements for dragonfly networks [Presentation]. Proceedings – IEEE International Conference on Cluster Computing, ICCC. https://doi.org/10.1109/CLUSTER.2015.57 Publication ID: 45501
  • Deveci, M., Devine, K., Leung, V., Prokopenko, A., Rajamanickam, S., & Rajamanickam, S. (2015). Architecture-aware Task Placement [Presentation]. https://www.osti.gov/biblio/1324418 Publication ID: 45418
  • Hastings, E., Rincon-Cruz, D., Spehlmann, M., Meyers, S., Xu, A., Bunde, D., Leung, V., & Leung, V. (2015). Comparing global link arrangements for Dragonfly networks [Presentation]. https://doi.org/10.1109/CLUSTER.2015.57 Publication ID: 45626
  • Leung, V., Bunde, D., Hastings, E., Meyers, S., Rincon-Cruz, D., Spehlmann, M., Xu, A., & Xu, A. (2015). Comparing global link arrangements for Dragonfly networks [Presentation]. https://www.osti.gov/biblio/1327866 Publication ID: 45764
  • Hastings, E., Rincon-Cruz, D., Spehlmann, M., Meyers, S., Xu, A., Bunde, D., Leung, V., & Leung, V. (2015). Comparing global link arrangements for Dragonfly networks [Conference Poster]. https://doi.org/10.1109/CLUSTER.2015.57 Publication ID: 44910
  • Tuncer, O., Leung, V., Coskun, A.K., & Coskun, A.K. (2015). PaCMap: Topology mapping of unstructured communication patterns onto non-contiguous allocations [Conference Poster]. Proceedings of the International Conference on Supercomputing. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84957564399&origin=inward Publication ID: 43115
  • Meng, J., McCauley, S., Kaplan, F., Leung, V., Coskun, A.K., & Coskun, A.K. (2015). Simulation and optimization of HPC job allocation for jointly reducing communication and cooling costs [Conference]. Sustainable Computing: Informatics and Systems. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84937517320&origin=inward Publication ID: 40832
  • Tuncer, O., Leung, V., Coskun, A., & Coskun, A. (2015). PaCMap: Topology Mapping of Unstructured Communication Patterns onto Non-contiguous Allocations [Conference Poster]. https://www.osti.gov/biblio/1257694 Publication ID: 43989
  • Balzuweit, E., Bunde, D., Leung, V., Finley, A., Lee, A., & Lee, A. (2015). Local Search to Improve Task Mapping [Conference Poster]. https://www.osti.gov/biblio/1245915 Publication ID: 42519
  • Devine, K., Boman, E., Rajamanickam, S., Leung, V., Riesen, L., Deveci, M., Catalyurek, U., & Catalyurek, U. (2015). The Zoltan2 Toolkit: Partitioning Task Placement Coloring and Ordering [Conference Poster]. https://www.osti.gov/biblio/1331661 Publication ID: 42721
  • Tate, A., Kamil, A., Dubey, A., Groblinger, A., Chamberlain, B., Goglin, B., Edwards, H., Newburn, C., Padua, D., Unat, D., Jeannot, E., Hannig, F., Tobias, G., Ltaief, H., Sexton, J., Labarta, J., Shalf, J., Fuerlinger, K., O’Brien, K., … Leung, V. (2014). Programming Abstractions for Data Locality. https://doi.org/10.2172/1172915 Publication ID: 39584
  • Balzuweit, E., Bunde, D., Leung, V., Finley, A., Lee, A., & Lee, A. (2014). Local search to improve task mapping [Presentation]. https://www.osti.gov/biblio/1502734 Publication ID: 38479
  • Tuncer, O., Leung, V., Coskun, A., & Coskun, A. (2014). Topology Mapping for Unstructured Communication Patterns [Conference Poster]. https://www.osti.gov/biblio/1319762 Publication ID: 38539
  • Brandt, J., Devine, K., Gentile, A., Leung, V., Olivier, S.L., Pedretti, K., Rajamanickam, S., Bunde, D., Deveci, M., Catalyurek, U., & Catalyurek, U. (2014). Using architecture information and real-time resource state to reduce power consumption and communication costs in parallel applications. https://doi.org/10.2172/1158537 Publication ID: 38566
  • Devine, K., Diamond, G., Ibanez, D., Leung, V., Prokopenko, A., Rajamanickam, S., Shephard, M., smith, C., & smith, C. (2014). FASTMath Partitioning and Task Placement [Presentation]. https://www.osti.gov/biblio/1494434 Publication ID: 37751
  • Leung, V. (2014). PReMAS: Simulator for resource management [Conference]. https://www.osti.gov/biblio/1145657 Publication ID: 40831
  • Leung, V., Phillips, C., & Phillips, C. (2014). Efficient scheduling to minimize calibrations [Conference]. https://www.osti.gov/biblio/1141719 Publication ID: 40243
  • Leung, V., Bunde, D.P., Ebbers, J., Feer, S.P., Price, N.W., Rhodes, Z.D., Swank, M., & Swank, M. (2014). Task mapping stencil computations for non-contiguous allocations [Conference]. Proceedings of the ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming, PPOPP. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84896854887&origin=inward Publication ID: 36660
  • Leung, V. (2014). Local search to improve task mapping [Conference]. https://www.osti.gov/biblio/1141471 Publication ID: 40162
  • Berry, J.W., Leung, V., Phillips, C., Pinar, A., Robinson, D., & Robinson, D. (2014). Statistically significant relational data mining :. https://doi.org/10.2172/1204082 Publication ID: 37160
  • Leung, V. (2014). Task Mapping Stencil Computations for Non-Contiguous Allocations [Conference]. https://www.osti.gov/biblio/1140598 Publication ID: 37169
  • Leung, V. (2014). Task Mapping Stencil Computations for Non-Contiguous Allocations [Presentation]. https://doi.org/10.1145/2555243.2555277 Publication ID: 37187
  • Ang, J., Barrett, R.F., Benner, R., Burke, D., Chan, C., Cook, J., Donofrio, D., Hammond, S.D., Hemmert, K., Kelly, S., Le, H., Leung, V., Resnick, D.R., Rodrigues, A., Shalf, J., Stark, D.T., Unat, D., Wright, N.J., & Wright, N.J. (2014). Abstract machine models and proxy architectures for exascale computing [Conference Poster]. Proceedings of Co-HPC 2014: 1st International Workshop on Hardware-Software Co-Design for High Performance Computing – Held in Conjunction with SC 2014: The International Conference for High Performance Computing, Networking, Storage and Analysis. https://doi.org/10.1109/Co-HPC.2014.4 Publication ID: 38472
  • Deveci, M., Rajamanickam, S., Leung, V., Pedretti, K., Olivier, S.L., Bunde, D.P., Catalyurek, U.V., Devine, K., & Devine, K. (2014). Exploiting geometric partitioning in task mapping for parallel computers [Conference]. Proceedings of the International Parallel and Distributed Processing Symposium, IPDPS. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84906673534&origin=inward Publication ID: 40207
  • Leung, V. (2013). Simulation and Optimization of HPC Job Allocation for Reducing Communication and Cooling Costs. Sustainable Computing. https://www.osti.gov/biblio/1123560 Publication ID: 31958
  • Rajamanickam, S., Leung, V., Pedretti, K., Olivier, S.L., Devine, K., & Devine, K. (2013). Exploiting Geometric Partitioning in Task Mapping for Parallel Computers [Conference]. https://www.osti.gov/biblio/1115106 Publication ID: 36299
  • Devine, K., Boman, E., Rajamanickam, S., Leung, V., & Leung, V. (2013). The Zoltan Toolkits: Parallel Partitioning Load Balancing Coloring and Ordering [Presentation]. https://www.osti.gov/biblio/1673208 Publication ID: 35796
  • Leung, V. (2013). Task Mapping for Non-contiguous Allocations [Conference]. https://www.osti.gov/biblio/1079029 Publication ID: 33426
  • Leung, V. (2013). Task Mapping for Non-contiguous Allocations [Conference]. https://www.osti.gov/biblio/1067806 Publication ID: 32349
  • Leung, V., Phillips, C., & Phillips, C. (2013). Efficient Scheduling to Minimize Calibrations [Conference]. https://www.osti.gov/biblio/1067803 Publication ID: 32351
  • Leung, V. (2013). Variations of Conservative to improve fairness [Conference]. https://www.osti.gov/biblio/1067742 Publication ID: 32352
  • Leung, V. (2013). Task mapping for non-contiguous allocations. https://doi.org/10.2172/1093699 Publication ID: 31648
  • Leung, V. (2013). Task Mapping for Non-contiguous Allocations [Conference]. https://www.osti.gov/biblio/1063331 Publication ID: 31455
  • Boman, E., Devine, K., Leung, V., Rajamanickam, S., & Rajamanickam, S. (2012). Zoltan2: Next-Generation Combinatorial Toolkit [Conference]. https://www.osti.gov/biblio/1062842 Publication ID: 30894
  • Devine, K., Leung, V., Rajamanickam, S., & Rajamanickam, S. (2012). Data Partitioning for Scientific Applications and Emerging Architectures [Conference]. https://www.osti.gov/biblio/1116382 Publication ID: 29878
  • Ralph, C.C., Leung, V., McLendon, W., & McLendon, W. (2012). Brief announcement: Subgraph Isomorphism on a MultiThreaded shared memory architecture [Conference]. Annual ACM Symposium on Parallelism in Algorithms and Architectures. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84864119757&origin=inward Publication ID: 28062
  • Leung, V. (2012). Backfilling with guarantees made as jobs arrive. Proposed for publication in Concurrency and Computation: Practice and Experience.. https://www.osti.gov/biblio/1067728 Publication ID: 28314
  • Barrett, B., Kelly, S., Klundt, R., Laros, J.H., Leung, V., Levenhagen, M., Lofstead, G., Moreland, K., Oldfield, R., Pedretti, K., Rodrigues, A., Barrett, R., Ward, L., Vandyke, J., Vaughan, C., Wheeler, K., Brandt, J., Brightwell, R., Curry, M., … Hemmert, K. (2012). Demonstration of a Legacy Application’s Path to Exascale – ASC L2 Milestone 4467 [Presentation]. https://www.osti.gov/biblio/1688616 Publication ID: 26984
  • Barrett, B., Kelly, S., Klundt, R., Laros, J.H., Leung, V., Levenhagen, M., Lofstead, G., Moreland, K., Oldfield, R., Pedretti, K., Rodrigues, A., Barrett, R., Ward, L., Vandyke, J., Vaughan, C., Wheeler, K., Brandt, J., Brightwell, R., Curry, M., … Hemmert, K. (2012). Report of experiments and evidence for ASC L2 milestone 4467 : demonstration of a legacy application’s path to exascale. https://doi.org/10.2172/1039013 Publication ID: 27001
  • Rodrigues, A., Leung, V., Levenhagen, M., Ferreira, K.B., Hemmert, K., Barrett, B., & Barrett, B. (2012). Improvements to the Structural Simulation Toolkit [Conference]. https://www.osti.gov/biblio/1068327 Publication ID: 27129
  • Rodrigues, A., Leung, V., Levenhagen, M., Ferreira, K.B., Hemmert, K., Barrett, B., & Barrett, B. (2012). Improvements to the Structural Simulation Toolkit [Conference]. https://www.osti.gov/biblio/1117760 Publication ID: 27219
  • Leung, V. (2011). Task Mapping for Noncontiguous Allocations [Conference]. https://www.osti.gov/biblio/1118485 Publication ID: 24736
  • Lindsay, A.M., Galloway-Carson, M., Johnson, C.R., Bunde, D.P., Leung, V., & Leung, V. (2011). Backfilling with guarantees granted upon job submission [Conference]. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=80052390195&origin=inward Publication ID: 21182
  • Rajamanickam, S., Boman, E., Devine, K., Leung, V., Riesen, L., & Riesen, L. (2011). Tutorial: The Zoltan Toolkit [Conference]. https://www.osti.gov/biblio/1143440 Publication ID: 24024
  • Leung, V. (2011). Backfilling with guarantees granted upon job submission [Conference]. https://www.osti.gov/biblio/1143438 Publication ID: 24098
  • Ebeida, M., Mitchell, S., Leung, V., Bishop, J., Martinez, M.J., & Martinez, M.J. (2011). Mesh Generation for Modeling and Simulation of Carbon Sequestration Process [Conference]. https://www.osti.gov/biblio/1107220 Publication ID: 23492
  • Ebeida, M., Mitchell, S., Knupp, P., Leung, V., & Leung, V. (2011). Conforming Voronoi Meshing Based on Maximal Poisson Sampling [Conference]. https://www.osti.gov/biblio/1106284 Publication ID: 22751
  • Ebeida, M., Knupp, P., Mitchell, S., Leung, V., & Leung, V. (2011). Conforming Voronoi Meshing for three dimensional domains with multiple cracks [Conference]. https://www.osti.gov/biblio/1120637 Publication ID: 21670
  • Ebeida, M., Knupp, P., Leung, V., & Leung, V. (2011). Mesh Generation of Modeling and Simulation of Carbon Sequestration Processes [Conference]. https://www.osti.gov/biblio/1109334 Publication ID: 21671
  • Leung, V., McLendon, W., & McLendon, W. (2011). Subgraph Isomorphism on a Multithreaded Shared Memory Architecture [Conference]. https://www.osti.gov/biblio/1110522 Publication ID: 21335
  • Leung, V. (2010). Faster high-quality processor allocation [Conference]. https://www.osti.gov/biblio/1124387 Publication ID: 17376
  • Leung, V. (2009). More Connections Are Not Always Better: Braess-like Paradoxes on a Bipartite Transaction Network [Conference]. https://www.osti.gov/biblio/1141795 Publication ID: 16869
  • Barrett, B., Hendrickson, B., Laviolette, R., Leung, V., Mackey, G., Murphy, R., Phillips, C., Pinar, A., & Pinar, A. (2009). LDRD final report : massive multithreading applied to national infrastructure and informatics. https://doi.org/10.2172/993883 Publication ID: 16810
  • Leung, V. (2009). Timed-Run Scheduling [Conference]. https://www.osti.gov/biblio/1141757 Publication ID: 15807
  • Devine, K., Diachin, L., Kraftcheck, J., Jansen, K.E., Leung, V., Luo, X., Miller, M., Ollivier-Gooch, C., Ovcharenko, A., Sahni, O., Shephard, M.S., Tautges, T., Xie, T., Zhou, M., & Zhou, M. (2009). Interoperable mesh components for large-scale, distributed-memory simulations [Conference]. Journal of Physics: Conference Series. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77957057057&origin=inward Publication ID: 16229
  • Leung, V. (2008). Recognition for Optimizing Hardware Allocation [Presentation]. https://www.osti.gov/biblio/1698373 Publication ID: 15539
  • Devine, K., Boman, E., Chevalier, C., Leung, V., Riesen, L., & Riesen, L. (2008). Tutorial : the Zoltan toolkit [Conference]. https://www.osti.gov/biblio/948337 Publication ID: 14601
  • Leung, V. (2008). Parallel job scheduling policies to improve fairness : a case study. https://doi.org/10.2172/929521 Publication ID: 12821
  • Berry, J.W., Carr, R., Hart, W., Leung, V., Phillips, C., Watson, J., & Watson, J. (2008). Designing Contamination Warning System for Municipal Water Networks Using Imperfect Sensors. Journal of Water Resources Planning and Management. https://www.osti.gov/biblio/1146387 Publication ID: 12548
  • Laviolette, R., Hendrickson, B., Leung, V., Phillips, C., & Phillips, C. (2007). Community Detection vis Facility Location. Phycisal Review Letters. https://www.osti.gov/biblio/1146883 Publication ID: 11717
  • Boman, E., Leung, V., Riesen, L., & Riesen, L. (2007). Dynamic Load Balancing and Partitioning using the Zoltan Toolkit [Conference]. https://www.osti.gov/biblio/1147186 Publication ID: 10791
  • Leung, V. (2007). Dynamic Services (Zoltan) [Presentation]. https://www.osti.gov/biblio/1721577 Publication ID: 10358
  • Leung, V. (2006). Parallel Job Scheduling Policies to Improve Fairness: A Case Study. Journal of Scheduling. https://www.osti.gov/biblio/1141775 Publication ID: 7950
  • Hart, W., Berry, J.W., Watson, J., Carr, R., Phillips, C., Leung, V., & Leung, V. (2006). On the Placement of Imperfect Sensors in Municipal Water Networks [Conference]. https://www.osti.gov/biblio/1264620 Publication ID: 7241
  • Leung, V. (2006). Fairness of Job Scheduling in Cplant [Presentation]. https://www.osti.gov/biblio/1727324 Publication ID: 7201
  • Bunde, D.P., Leung, V., Mache, J., & Mache, J. (2004). Communication patterns and allocation strategies [Conference]. Proceedings – International Parallel and Distributed Processing Symposium, IPDPS 2004 (Abstracts and CD-ROM). https://doi.org/10.2172/918398 Publication ID: 2762
  • Leung, V., Phillips, C., & Phillips, C. (2004). Communication-aware processor allocation for supercomputers [Conference]. https://www.osti.gov/biblio/959267 Publication ID: 3334
  • Leung, V., Leung, V., Phillips, C., & Phillips, C. (2003). Algorithmic support for commodity-based parallel computing systems. https://doi.org/10.2172/918344 Publication ID: 2700
  • Leung, V., Delaurentis, J., & Delaurentis, J. (2002). Maximum Utilization of Parallel Computers [Conference]. https://doi.org/10.2172/800811 Publication ID: 1456
  • Leung, V., Arkin, E.M., Bender, M.A., Bunde, D., Johnston, J., Lal, A., Mitchell, J.S.B., Phillips, C., Seiden, S.S., & Seiden, S.S. (2002). Processor allocation on Cplant: Achieving general processor locality using one-dimensional allocation strategies [Conference]. Proceedings – IEEE International Conference on Cluster Computing, ICCC. https://doi.org/10.2172/800975 Publication ID: 1488
  • Leung, V., Irani, S., & Irani, S. (2001). Experimental results on statistical approaches to page replacement policies [Conference]. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84947235578&origin=inward Publication ID: 1077
  • Witkowski, W., Jung, J., Dohrmann, C., Leung, V., & Leung, V. (2000). Finite element meshing approached as a global minimization process. https://doi.org/10.2172/752528 Publication ID: 294
Showing 10 of 110 publications.

Projects

HPC Resource Allocation

Awards & Recognition

2018

Vitus J. Leung, Primary Program Committee, IPDPS, October 3, 2018

2017

Vitus J. Leung, SBIR/STTR Programs Review Panel, The Office of Advanced scientific computing in the Office of Science at the US Department of Energy, December 13, 2017

Vitus J. Leung, Member of the Program Committee, COLOC Workshop, March 14, 2017

Vitus J. Leung, Poster Committee Member, The 26th International Symposium on High Performance Distributed Computing (HPDC), April 24, 2017

Vitus J. Leung, Unveiling the Interplay Between Global Link Arrangements and Network Management Algorithms on Dragonfly Networks, Fourth Workshop on Programming Abstractions for Data Locality (PADAL), August 3, 2017

Vitus J. Leung, External referee for a PhD thesis, Grenoble Institute of Technology, July 19, 2017

Ozan Tuncer, Emre Ates, Boston University, Yijia Zhang, Boston University, Ata Turk, Boston University, James M Brandt, Vitus J Leung, Manuel Egele, Boston University, Ayse K Coskun, Boston University, Gauss Award, German Gauss Center for Supercomputing, This award is assigned to the most outstanding paper in the field of scalable supercomputing accepted to ISC HPC, June 19, 2017

2016

Vitus J. Leung, Technical Program Committee, 5th International Conference on Advances in Computing, Communications, and Informatics, January 4, 2016

Vitus J. Leung, PhD Thesis Committee, Boston University, February 11, 2016

2014

Michael Bender, David Bunde, Knox College, Vitus J. Leung, Samuel McCauley, Stony Brook University, Cynthia A. Phillips, "Efficient scheduling to minimize calibrations", Workshop on New Challenges in Scheduling Theory, April 3, 2014

Vitus J. Leung, Simulation and Optimization of HPC Job Allocation for Jointly Reducing Communication and Cooling Costs, Knox College, May 14, 2014

Vitus J. Leung, Task Mapping Stencil Computations for Non-Contiguous Allocations, Workshop on New Challenges in Scheduling Theory, April 2, 2014

Vitus J. Leung, Zoltan2: Exploiting Geometric Partitioning in Task Mapping for Parallel Computers, PADAL Workshop 2014, April 29, 2014

2013

Vitus J. Leung, Outside Examiner, Knox College, May 14, 2013

Vitus J. Leung, Session Organizer, INFORMS Annual Meeting, August 12, 2013

Vitus J. Leung, Task mapping for non-contiguous allocations, Boston University CISE, May 20, 2013

2012

Vitus J. Leung, Backfilling with guarantees granted upon job submission, New Challenges in Scheduling Theory, October 25, 2012

Vitus J. Leung, Subgraph isomorphism in a multithreaded shared memory architecture, Knox College Computer Science Department, September 19, 2012

2011

Vitus J. Leung, Minisymposium Organizer, SIAM Conference on Parallel Processing for Scientific Computing, October 16, 2011

2010

Vitus J. Leung, Randall A Laviolette, DOE, Braess-Like Paradox on a Bipartite Exchange Network: More Connections are Not Always Better, New Challenges in Scheduling Theory, September 12, 2010

Vitus J. Leung, Parallel Job Scheduling Policies to Improve Fairness: A Case Study, Knox College Department of Computer Science, November 2, 2010

2009

Vitus J. Leung, Braess-like paradoxes on a bipartite exchange network: More connections are not always better, INFORMS Annual Meeting, October 11, 2009

Vitus J. Leung, Breakout group co-leader, NSF Workshop on the Science of Power Management, April 7, 2009

Vitus J. Leung, Senior Member, ACM, May 7, 2009

Vitus J. Leung, Small Data Centers and Grid Computing Panel, National Science Foundation, April 15, 2009

2008

Vitus J. Leung, Program Committee, ACM Symposium on Parallelism in Algorithms and Architectures, December 1, 2008

Vitus J. Leung, New Experimental Results in Communication-Aware Processor Allocation for Supercomputers, New Challenges in Scheduling Theory, May 12, 2008

2007

Vitus J. Leung, Reviewer, Journal of Parallel and Distributed Computing, September 10, 2007

2006

Vitus J. Leung, Michael A Bender, Stony Brook University, David P Bunde, University of Illinois, Urbana-Champaign, Kevin T Pedretti, Cynthia A Phillips, Compute Process Allocator (CPA), R&D 100, October 19, 2006

Vitus J. Leung, Early Career Principal Investigator Panel, Department of Energy, March 29, 2006

Vitus J. Leung, Fairness of Job Scheduling in Cplant, Scheduling Algorithms for New Emerging Applications, May 29, 2006

2010

Bob Ballance, Bob Benner, Courtenay Vaughan, Cynthia Phillips, Gerald Quinlan, Sandia (retired), James H Laros, Jim Tomkins, Sandia (retired), John VanDyke, Lee Ann Riesen, Lee Ward, Len Stans, Sandia (retired), Linda Bonnefoy-Lev, Michael Levenhagen, Patricia Brown, Paul Iwanchuk, LANL, Rolf Riesen, Ruth Klundt, Suzanne Kelly, Trammell Hudson, Contractor, Vitus Leung, William J. Camp, Sandia (retired), Vitus J. Leung, , Excellence in Technology Transfer, Federal Laboratory Consortium, Red Storm Massively Parallel Processor, April 29, 2010