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Sathish Vadhiyar
 Associate Professor
 Department of Computational and Data Sciences (CDS)
 Supercomputer Education and Research Centre (SERC)
 Indian Institute of Science (IISc), Bangalore - 560012, India
 e-mail: vss@cds.iisc.ac.in Phone: 91-80-22932615 Fax: 91-80-23602648

 Associated Lab: Middleware and Runtime Systems (MARS) Lab

I am an Associate Professor in CDS and SERC, IISc. Prior to joining IISc, from 1999-2003, I was in Innovative Computing Lab of Dr. Jack Dongarra, Computer Science Department, University of Tennessee, USA, first as a PhD student and then as a senior research associate.

My research interests are in high performance computing (HPC) in general, and building middleware and runtime systems for parallel applications and systems, in particular. Our lab, MARS, deals with the following primary areas:

  • HPC Runtime Systems / Application Frameworks: Our lab works on building runtime systems for HPC applications on both accelerator and general HPC systems. We primarily focus on irregular applications including graph applications, N-Body simulations, Molecular Dynamics (MD), and Adaptive Mesh Refinement (AMR) applications. We have also worked with applications in climate science and visualization in collaboration with researchers working in these areas.
    • Accelerator systems: Techniques for load balancing, hybrid executions utilizing both CPU and GPU cores, and efficient executions of different programming models on these systems.
    • Large-scale systems: Scalability studies, tools and techniques, processor allocation, mapping and remapping strategies on HPC network topologies.
  • Middleware:
    • Job Scheduling: Our work is on analyzing job submissions, developing prediction strategies and scheduling techniques that use predictions for efficient job management and utilization of production supercomputer systems.
    • Fault Tolerance: For exascale applications using checkpointing and process replication.

Besides these, we are also eager to learn about and provide solutions for efficient executions, good speedups, and in general remarkable reduction in turnaround times of large time-consuming Industrial applications.


  • Amlesh Kashyap, Sathish S. Vadhiyar, Ravi S. Nanjundiah, P. N. Vinayachandran. Asynchronous and Synchronous Models of Executions on Intel Xeon Phi Coprocessor Systems for High Performance of Long Wave Radiation Calculations in Atmosphere Models. Journal of Parallel and Distributed Computing, Vol 102, pages 199-212, 2017.
  • Srinivasan Ramesh, Sathish Vadhiyar, P. N. Vinayachandran, Ravi S. Nanjundiah. Deep andSh allow Convection Calculations in Atmosphere Models on Intel Xeon Phi Coprocessor Systems. In the proceedings of the High Performance Computing Commmunications (HPCC), December 2017, Bangkok, Thailand.
  • Vineetha Kondameedi, Sathish Vadhiyar. Adaptive Hybrid Queue Configuration for Supercomputer Systems. In the proceedings of the 17th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGrid), May 2017, Madrid, Spain.
  • T.M. Aketh, Sathish Vadhiyar, P. N. Vinayachandran, Ravi S. Nanjundiah. High Performance Horizontal Diffusion Calculations in Ocean Models on Intel Xeon Phi Coprocessor Systems. In the proceedings of the International Conference on High Performance Computing (HiPC), December 2016, Hyderabad, India.
  • Prakash Murali, Sathish Vadhiyar. Qespera: An Adaptive Framework for Prediction of Queue Waiting Times in Supercomputer Systems. Concurrency and Computation: Practice and Experience, Vol 28/9, pp 2685-2710, June 2016.


Current: 2 PhD, 4 Masters by Research, 3 Masters by Course.
Past: 3 PhDs, 9 Masters by Research, 12 Masters by Course, 1 long-duration student intern from INSA, Lyon.


  • (Previously SE 295), January, 3:1. Parallel Programming. 2004,05,06,07,08,09,10,11,12,13,14,15,16,17.
  • DS 221, August, 3:0. Introduction to Scalable Systems. (With Profs. Matthew Jacob and Yogesh Simmhan). 2017.
  • SE 286, August, 3:1. Data Structures and Programming. 2014.
  • SE 292, August, 3:0. High Performance Computing. 2009,10,11,12,13,15,16.
  • SE 293, August, 3:1. Topics in Grid Computing. 2004,05,06,07.

Professional Activities
Editorial Boards: Associate Editor, TPDS. 2014-date.
Award Committee: ACM Senior Member Award Comittee. 2015-date.
Chair: Session Chair - HPCC 2017, Session Chair - ICS 2013, Student affairs committee chair - PPoPP 2010,...
Program Committee: IPDPS 2018, IPDPS 2017, HiPC 2017, ICPP 2017,  ...
Reviewer: Parco 2017, CPE 2017, ACM Supercomputing Surveys 2016, Journal of Supercomputing 2016,... 
Invited Talks: Garuda NKN - September 2016, JNU Delhi - November 2015, NIT Trichy - January 2015, NMIT Bangalore - 2014,...



  • Outstanding Reviewer Status for Journal of Parallel and Distributed Computing, May 2015.
  • NVIDIA Innovation Award. For the project "GPU-enabled Efficient Executions of Radiation Calculations for Climate Modeling''. 2013.
  • Yahoo! Faculty Research Award, 2011.
  • Indian National Academy of Engineering (INAE) Young Engineer Award, 2009.
  • University of Tennessee citation for Extraordinary Professional Promise, 2003.

Interested in working with us?
Look for project positions in our lab positions page.

Last Modified: January 05, 2017
Copyright © 2010 Sathish Vadhiyar