Skip to Main Content U.S. Department of Energy
Computational Sciences & Mathematics

Staff information

Jeff Daily

Jeff Daily

High Performance Computing
Pacific Northwest National Laboratory
PO Box 999
MSIN: J4-30
Richland, WA 99352


Daily collaborates with application domain scientists to identify and develop key capabilities. His primary responsibility is the development of high performance computing applications utilizing the Global Arrays Toolkit (GA), of which he is also a key developer. Daily is known for his contributions to GA, specifically as the lead for Python support within GA. He is also known for the Parallel Analysis of Geoscience Data (pagoda) suite of climate analysis tools.

Research Interests

  • High Performance Computing
  • Python Programming Language
  • Data-intensive Computing

Education and Credentials

  • Enrolled, Ph.D. Computer Science, Washington State University, expected 2015
  • M.S. Computer Science, Washington State University, 2009
  • B.S. Computer Science, Washington State University, 2006

Awards and Recognitions

  • PNNL Outstanding Performance Award 2010, 2013

PNNL Publications


  • Wood LS, JA Daily, MJ Henry, BJ Palmer, KL Schuchardt, DA Dazlich, RP Heikes, and D Randall. 2015. "A Global Climate Model Agent for High Spatial and Temporal Resolution Data." International Journal of High Performance Computing Applications 29(1):107-116.  doi:10.1177/1094342013518808


  • Ciraci S, JA Daily, JC Fuller, AR Fisher, LD Marinovici, and K Agarwal. 2014. "FNCS: A Framework for Power System and Communication Networks Co-Simulation." In DEVS 2014: Proceedings of the Symposium on Theory of Modeling & Simulation, April 13-16, 2014, Tampa, Florida, p. Article No. 36.  Society for Computer Simulation International, San Diego, CA. 
  • Ciraci S, JC Fuller, JA Daily, A Makhmalbaf, and CD Callahan, II. 2014. "A Runtime Verification Framework for Control System Simulation." In IEEE 38th Annual Computer Software and Applications Conference (COMPSAC 2014), July 21-25, 2014, Vasteras, Sweden, pp. 78-84.  IEEE, Piscataway, NJ. 
  • Gaustad KL, TR Shippert, BD Ermold, SJ Beus, JA Daily, A Borsholm, and KM Fox. 2014. "A Scientific Data Processing Framework for Time Series NetCDF Data." Environmental Modelling & Software 60:241-249.  doi:10.1016/j.envsoft.2014.06.005
  • Makhmalbaf A, JC Fuller, V Srivastava, S Ciraci, and JA Daily. 2014. "Co-Simulation of Detailed Whole Building with the Power System to Study Smart Grid Applications." In IEEE Conference on Technologies for Sustainability (SusTech 2014), July 24, 265, 2014, Portland, Oregon.  IEEE, Piscatawy, NJ.  doi:10.1109/SusTech.2014.7046242


  • Daily JA, and DC Berghofer. 2013. Efficient Memory Access with NumPy Global Arrays using Local Memory AccessPNNL-22620, Pacific Northwest National Laboratory, Richland, WA. 
  • Ali N, S Krishnamoorthy, M Halappanavar, and JA Daily. 2013. "Multi-fault Tolerance for Cartesian Data Distributions." International Journal of Parallel Programming 41(3):469-493.  doi:10.1007/s10766-012-0218-5
  • Fuller JC, S Ciraci, JA Daily, AR Fisher, and ML Hauer. 2013. "Communication Simulations for Power System Applications." In IEEE Workshop on Modeling and Simulation of Cyber-Physical Energy Systems (MSCPES), Co-Located with the Fourth ACM International Conference on Future Energy Systems, May 20, 2013, Berkeley, California, pp. 24-29.  Institute of Electrical and Electronics Engineers , Piscataway, NJ. 


  • Daily JA, S Krishnamoorthy, and A Kalyanaraman. 2012. "Towards Scalable Optimal Sequence Homology Detection." In 19th International Conference on High Performance Computing (HiPC), December 18-22, 2012, Pune, India.  Institute of Electrical and Electronics Engineers, Piscataway, NJ.  doi:10.1109/HiPC.2012.6507523
  • Vishnu A, JA Daily, and BJ Palmer. 2012. "Designing Scalable PGAS Communication Subsystems on Cray Gemini Interconnect." In 19th International Conference on High Performance Computing (HiPC), December 18-22, 2012, Pune, India.  Institute of Electrical and Electronics Engineers , Piscataway, NJ.  doi:10.1109/HiPC.2012.6507506
  • Villa O, A Tumeo, S Ciraci, JA Daily, and JC Fuller. 2012. "A High Performance Computing Network and System Simulator for the Power Grid: NGNS^2." In 2012 SC Companion: High Performance Computing, Networking and Analytics for the Power Grid (SCC), November 10-16, 2012, Salt Lake City, Utah, pp. 313-322.  IEEE Computer Society Press, Los Alamitos, CA.  doi:10.1109/SC.Companion.2012.50


  • Daily JA, and RR Lewis. 2011. "Automatic Parallelization of Numerical Python Applications using the Global Arrays Toolkit." In Proceedings of the 2011 Companion on High Performance Computing, Networking, Storage and Analysis, (SC 2011 Companion), November 12-18, Seattle, Washington, pp. 43-44.  Association for Computing Machinery, New York, NY.  doi:10.1145/2148600.2148623
  • Daily JA, and RR Lewis. 2011. "Using the Global Arrays Toolkit to Reimplement NumPy for Distributed Computation." In Python for Scientific Computing Conference (SciPy 2011), July 11-16, 2011, Austin, Texas.  Enthought Inc. , Austin, TX. 
  • Ali N, S Krishnamoorthy, M Halappanavar, and JA Daily. 2011. "Tolerating Correlated Failures for Generalized Cartesian Distributions via Bipartite Matching." In Proceedings of the 8th ACM International Conference on Computing Frontiers (CF 2011), May 3-5, 2011, Ischia, Italy.  Association for Computing Machinery, New York, NY.  doi:10.1145/2016604.2016649


  • Daily JA, KL Schuchardt, and BJ Palmer. 2010. "Efficient Extraction of Regional Subsets from Massive Climate Datasets using Parallel IO." In American Geophysical Union, Fall Meeting 2010, pp. Paper No. IN41A-1360.  American Geophysical Union, Washington DC. 


  • Daily JA. 2009. GAiN: Distributed Array Computation with PythonPNNL-18355, Pacific Northwest National Laboratory, Richland, WA. 
  • Schuchardt KL, JM Chase, JA Daily, TO Elsethagen, BJ Palmer, and TD Scheibe. 2009. "Application of SALSSA Framework to the Validation of Smoothed Particle Hydrodynamics Simulations of Low Reynolds Number Flows." Journal of Physics: Conference Series 180(1):Article No. 012065.  doi:10.1088/1742-6596/180/1/012065


  • Chase JM, KL Schuchardt, G Chin, Jr, JA Daily, and TD Scheibe. 2008. "Iterative Workflows for Numerical Simulations in Subsurface Sciences." In Proceedings of 2008 IEEE Congress on Services Part 1, pp. 461-464.  IEEE Computer Society, Los Alamitos, CA.  doi:10.1109/SERVICES-1.2008.96


  • Schuchardt KL, BJ Palmer, J Daily, TO Elsethagen, and AS Koontz. 2007. "IO strategies and data services for petascale data sets from a global cloud resolving model." Journal of Physics: Conference Series 78:Art. No. 012089.  doi:10.1088/1742-6596/78/1/012089

Advanced Computing, Mathematics, and Data


Seminar Series

Fundamental & Computational Sciences

ACMDD Research

Research highlights

View All ACMDD Highlights