Yogish Sabharwal


IBM Research - India


I completed my Ph.D. from the Indian Institute of Technology, Delhi in 2007. My supervisors were Prof. Sandeep Sen and Prof. Amit Kumar. My thesis is in approximation algorithms for proximity and clustering problems.

I work in the High Performance Computing (HPC) group at IRL. Amongst other things, I have worked on optimization of HPC Challenge (HPCC) and Graph500 benchmarks on IBM Supercomputers such as Blue Gene. These benchmarks are used in evaluating the performance of HPC systems. Our optimizations of the RandomAccess benchmark have won the HPCC Class 1 award for this benchmark on IBM's Blue Gene Supercomputers six years in a row (2005-2010). Associated publications include a best paper finalist at Supercomputing 2006, and 3 best paper awards - at IPDPS 2009, IPDPS 2013, and and HiPC 2010. I am also an adjunct faculty @IIT-Delhi.

Courses taught @IIT-Delhi

CSV880: Special Topics in Parallel Computing (2013-14,2014-15)

Ph.D. Students

Sonika Arora