Publications
Accelerating Geostatistical Modeling and Prediction With Mixed-Precision Computations: A High-Productivity Approach With PaRSEC,”
IEEE Transactions on Parallel and Distributed Systems, vol. 33, issue 4, pp. 964 - 976, April 2022.
DOI: 10.1109/TPDS.2021.3084071
“Analysis of the Communication and Computation Cost of FFT Libraries towards Exascale,”
ICL Technical Report, no. ICL-UT-22-07: Innovative Computing Laboratory, July 2022.
(5.91 MB)
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Batch QR Factorization on GPUs: Design, Optimization, and Tuning,”
Lecture Notes in Computer Science, vol. 13350, Cham, Springer International Publishing, June 2022.
DOI: 10.1007/978-3-031-08751-6_5
“Checkpointing à la Young/Daly: an overview,”
IC3, the 14th Int. Conf. on Contemporary Computing: ACM Press, 2022.
(639.77 KB)
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Communication Avoiding LU with Tournament Pivoting in SLATE,”
SLATE Working Notes, no. 18, ICL-UT-22-01, January 2022.
(3.74 MB)
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Comparing Distributed Termination Detection Algorithms for Modern HPC Platforms,”
International Journal of Networking and Computing, vol. 12, issue 1, pp. 26 - 46, January 2022.
DOI: 10.15803/ijnc.12.1_26
“Computational science for a better future,”
Journal of Computational Science, vol. 62, pp. 101745, July 2022.
DOI: 10.1016/j.jocs.2022.101745
“Evaluating Data Redistribution in PaRSEC,”
IEEE Transactions on Parallel and Distributed Systems, vol. 33, no. 8, pp. 1856-1872, 2022.
DOI: 10.1109/TPDS.2021.3131657
(3.19 MB)
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FFT Benchmark Performance Experiments on Systems Targeting Exascale,”
ICL Technical Report, no. ICL-UT-22-02, March 2022.
(5.87 MB)
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A Framework to Exploit Data Sparsity in Tile Low-Rank Cholesky Factorization,”
IEEE International Parallel and Distributed Processing Symposium (IPDPS), 2022.
(1.03 MB)
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Generalized Flow-Graph Programming Using Template Task-Graphs: Initial Implementation and Assessment,”
2022 IEEE International Parallel and Distributed Processing Symposium (IPDPS), Lyon, France, IEEE, July 2022.
DOI: 10.1109/IPDPS53621.2022.00086
“Mixed precision and approximate 3D FFTs: Speed for accuracy trade-off with GPU-aware MPI and run-time data compression,”
ICL Technical Report, no. ICL-UT-22-04, May 2022.
(706.14 KB)
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Online scheduling of moldable task graphs under common speedup models,”
ICPP'2022, the 50th Int. Conf. on Parallel Processing: ACM Press, 2022.
(622.81 KB)
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OpenMP application experiences: Porting to accelerated nodes,”
Parallel Computing, vol. 109, March 2022.
DOI: 10.1016/j.parco.2021.102856
“Optimal checkpointing strategies for iterative applications,”
IEEE Trans. Parallel Distributed Systems, vol. 33, no. 3, pp. 507-522, 2022.
(1.47 MB)
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PAQR: Pivoting Avoiding QR factorization,”
ICL Technical Report, no. ICL-UT-22-06, June 2022.
(364.85 KB)
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Reinventing High Performance Computing: Challenges and Opportunities,”
ICL Technical Report, no. ICL-UT-22-03, March 2022.
(1.36 MB)
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Report on the Oak Ridge National Laboratory's Frontier System,”
ICL Technical Report, no. ICL-UT-22-05, May 2022.
(16.87 MB)
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Resilient scheduling of moldable parallel jobs to cope with silent errors,”
IEEE Trans. Computers, vol. 71, no. 7, 2022.
(1.52 MB)
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Using long vector extensions for MPI reductions,”
Parallel Computing, vol. 109, pp. 102871, March 2022.
DOI: 10.1016/j.parco.2021.102871
“20 years of computational science: Selected papers from 2020 International Conference on Computational Science,”
Journal of Computational Science, vol. 53, pp. 101395–101395, 2021.
DOI: 10.1016/j.jocs.2021.101395
“Accelerating FFT towards Exascale Computing
: NVIDIA GPU Technology Conference (GTC2021), 2021.
(27.23 MB)

Accelerating Restarted GMRES with Mixed Precision Arithmetic,”
IEEE Transactions on Parallel and Distributed Systems, June 2021.
DOI: 10.1109/TPDS.2021.3090757
(572.4 KB)
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Budget-aware scheduling algorithms for scientific workflows with stochastic task weights on IaaS Cloud platforms,”
Concurrency and Computation: Practice and Experience, vol. 33, no. 17, pp. e6065, 2021.
DOI: 10.1002/cpe.6065
(1.99 MB)
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Callback-based completion notification using MPI Continuations,”
Parallel Computing, vol. 21238566, issue 0225, pp. 102793, May Jan.
DOI: 10.1016/j.parco.2021.102793
“Distributed-Memory Multi-GPU Block-Sparse Tensor Contraction for Electronic Structure,”
35th IEEE International Parallel & Distributed Processing Symposium (IPDPS 2021), Portland, OR, IEEE, May 2021.
“DTE: PaRSEC Enabled Libraries and Applications
: 2021 Exascale Computing Project Annual Meeting, April 2021.
(3.24 MB)

Dynamic DAG scheduling under memory constraints for shared-memory platforms,”
Int. J. of Networking and Computing, vol. 11, no. 1, pp. 27-49, 2021.
(574.64 KB)
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Efficient exascale discretizations: High-order finite element methods,”
The International Journal of High Performance Computing Applications, pp. 10943420211020803, 2021.
DOI: 10.1177/10943420211020803
“Effortless Monitoring of Arithmetic Intensity with PAPI’s Counter Analysis Toolkit,”
Tools for High Performance Computing 2018/2019: Springer, pp. 195–218, 2021.
DOI: 10.1007/978-3-030-66057-4_11
“Evaluating Task Dropping Strategies for Overloaded Real-Time Systems (Work-In-Progress),”
42nd Real Time Systems Symposium (RTSS): IEEE Computer Society Press, 2021.
(217.13 KB)
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Exploiting Block Structures of KKT Matrices for Efficient Solution of Convex Optimization Problems,”
IEEE Access, 2021.
DOI: 10.1109/ACCESS.2021.3106054
(1.35 MB)
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Gingko: A Sparse Linear Algebrea Library for HPC
: 2021 ECP Annual Meeting, April 2021.
(893.04 KB)

GPU algorithms for Efficient Exascale Discretizations,”
Parallel Computing, vol. 108, pp. 102841, 2021.
DOI: 10.1016/j.parco.2021.102841
“Interim Report on Benchmarking FFT Libraries on High Performance Systems,”
Innovative Computing Laboratory Technical Report, no. ICL-UT-21-03: University of Tennessee, July 2021.
(2.68 MB)
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An international survey on MPI users,”
Parallel Computing, vol. 108, December 2021.
DOI: 10.1016/j.parco.2021.102853
(1.49 MB)
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An Introduction to High Performance Computing and Its Intersection with Advances in Modeling Rare Earth Elements and Actinides,”
Rare Earth Elements and Actinides: Progress in Computational Science Applications, vol. 1388, Washington, DC, American Chemical Society, pp. 3-53, October 2021.
DOI: 10.1021/bk-2021-1388.ch001
“Lecture Notes in Computer Science: High Performance Computing
, vol. 12761: Springer International Publishing, 2021.
DOI: 10.1007/978-3-030-90539-2
Leveraging PaRSEC Runtime Support to Tackle Challenging 3D Data-Sparse Matrix Problems,”
35th IEEE International Parallel & Distributed Processing Symposium (IPDPS 2021), Portland, OR, IEEE, May 2021.
(1.08 MB)
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libCEED: Fast algebra for high-order element-based discretizations,”
Journal of Open Source Software, vol. 6, no. 63, pp. 2945, 2021.
DOI: 10.21105/joss.02945
“Materials fingerprinting classification,”
Computer Physics Communications, pp. 108019, May Jan.
DOI: 10.1016/j.cpc.2021.108019
(3.8 MB)
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Max-Stretch Minimization on an Edge-Cloud Platform,”
IPDPS'2021, the 34th IEEE International Parallel and Distributed Processing Symposium: IEEE Computer Society Press, 2021.
(4.94 MB)
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Mixed-Precision Algorithm for Finding Selected Eigenvalues and Eigenvectors of Symmetric and Hermitian Matrices,”
ICL Technical Report, no. ICL-UT-21-05, August 2021.
(3.93 MB)
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A More Portable HeFFTe: Implementing a Fallback Algorithm for Scalable Fourier Transforms,”
ICL Technical Report, no. ICL-UT-21-04: University of Tennessee, August 2021.
(493.17 KB)
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P1673R3: A Free Function Linear algebra Interface Based on the BLAS,”
ISO JTC1 SC22 WG22, no. P1673R3: ISO, April 2021.
(858.89 KB)
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Quo Vadis MPI RMA? Towards a More Efficient Use of MPI One-Sided Communication,”
EuroMPI'21, Garching, Munich Germany, 2021.
(835.27 KB)
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Rare Earth Elements and Actinides: Progress in Computational Science Applications,”
ACS Symposium Series, vol. 1388, Washington, DC, American Chemical Society, October 2021.
DOI: DOI: 10.1021/bk-2021-1388
“Rare Earth Elements and Critical Materials: Uses and Availability,”
Rare Earth Elements and Actinides: Progress in Computational Science Applications, vol. 1388, Washington, DC, American Chemical Society, pp. 63-74, October 2021.
DOI: 10.1021/bk-2021-1388.ch003
“Resilient scheduling heuristics for rigid parallel jobs,”
Int. J. of Networking and Computing, vol. 11, no. 1, pp. 2-26, 2021.
(8.67 MB)
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Revisiting Credit Distribution Algorithms for Distributed Termination Detection,”
2021 IEEE International Parallel and Distributed Processing Symposium Workshops (IPDPSW): IEEE, pp. 611–620, 2021.
DOI: 10.1109/IPDPSW52791.2021.00095
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