<![CDATA[Sai Charan]]> 2019-02-05T19:01:37-08:00 http://www.cs.ucr.edu/~scharan/ Octopress http://www.cs.ucr.edu/~scharan <![CDATA[{{ site.title }}]]> {{ site.time | date_to_xmlschema }} {{ site.url }}/ <![CDATA[{{ site.author | strip_html }}]]> {% if site.email %}<![CDATA[{{ site.email }}]]>{% endif %} Octopress {% for page in site.pages limit: 20 %} {% if page.title %} <![CDATA[{{ page.title | cdata_escape }}]]> {% endif %} {{ site.url }}{{ page.id }} <![CDATA[{{ page.content | expand_urls: site.url | cdata_escape }}]]> {% endfor %} {% for post in site.posts limit: 20 %} <![CDATA[{{ post.title | cdata_escape }}]]> {{ post.date | date_to_xmlschema }} {{ site.url }}{{ post.id }} <![CDATA[{{ post.content | expand_urls: site.url | cdata_escape }}]]> {% endfor %} ]]> http://www.cs.ucr.edu/~scharan {% assign index = true %} {% for post in paginator.posts %} {% assign content = post.content %}
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{% endfor %} ]]> <![CDATA[Research]]> http://www.cs.ucr.edu/~scharan Research: Interests & Summary ---------- Sai Charan's doctoral research dealt with Size Oblivious Programming for irregular BigData applications & programming language and compiler support for parallel, distributed computing; specifically on distributed software speculation. He briefly worked on runtime monitoring support for parallel, distributed programs. In the past, Sai proposed hyper-dimensional extensions of the [Baker's map](http://en.wikipedia.org/wiki/Baker's_map) to strengthen [Chaos theory](http://en.wikipedia.org/wiki/Chaos_theory) based image encryption. Sai also had a brief stint with [Optical Character Recognition](http://en.wikipedia.org/wiki/Optical_character_recognition) for his native [Telugu](http://en.wikipedia.org/wiki/Telugu_script) script using the [Discrete Cosine Transform](http://en.wikipedia.org/wiki/Discrete_cosine_transform). This page lists Sai's [publications](#pub), [theses](#theses), [talks](#talks) & [scholar links](#scholar). Publications ------------ + [**Out-of-Core MapReduce for Large Data Sets**](https://dl.acm.org/citation.cfm?doid=3210563.3210568)
**Gurneet Kaur, Keval Vora, _Sai Charan Koduru_ and Rajiv Gupta**
International Symposium on Memory Management, [ISMM 2018](https://conf.researchr.org/home/ismm-2018), Philadelphia, Pennsylvania, June 18, 2018. + [**Software Speculation on Caching DSMs**](https://link.springer.com/article/10.1007/s10766-017-0499-9)
**_Sai Charan Koduru_, Keval Vora, Rajiv Gupta**
Intl' Journal of Parallel Processing (IJPP), 04 April 2017. + **_Recipient of the 'Best Student Paper' Award at LCPC 2015._**
[**_Size Oblivious Programming with Infinimem_**](http://www.csc2.ncsu.edu/workshops/lcpc2015/lcpc15proc.pdf)
**_Sai Charan Koduru_, Rajiv Gupta and Iulian Neamtiu**
The 28th International Workshop on Languages and Compilers for Parallel Computing ([LCPC](http://www.csc2.ncsu.edu/workshops/lcpc2015/)), Raleigh, North Carolina, USA, 09-11 September 2015. + [**_Optimizing Caching DSM for Distributed Software Speculation_**](#)
**_Sai Charan Koduru_, Keval Vora and Rajiv Gupta**
The IEEE International Conference on Cluster Computing ([IEEE CLUSTER](http://www.mcs.anl.gov/ieeecluster2015/)) 2015, Chicago, Illinois, USA, 08-11 September 2015. + [**_ASPIRE: Exploiting Asynchronous Parallelism in Iterative Algorithms using a Relaxed Consistency based DSM_**](http://dl.acm.org/citation.cfm?doid=2660193.2660227)
**Keval Vora, _Sai Charan Koduru_ and Rajiv Gupta**
The ACM SIGPLAN International Conference on Object Oriented Programming Systems, Languages and Applications ([OOPSLA](http://2014.splashcon.org)), Portland, Oregon, USA, 20-24 October 2014. + [**_ABC2: Adaptively Balancing Computation & Communication in a DSM cluster of Multicores for Irregular Applications_**](http://dx.doi.org/10.1109/IPDPSW.2014.51)
**_Sai Charan Koduru_, Keval Vora and Rajiv Gupta**
The 19th Interntational Workshop On High-Level Parallel Programming Models and Supportive Environments ([HIPS](http://www.eecis.udel.edu/~cavazos/hips/)) 2014 ([IPDPS Workshop](http://ipdps.org/ipdps2014/2014_advance_program.html#monday)), Phoenix, Arizona, USA, 19th May, 2014. + [**_Programming Large Dynamic Data Structures on a DSM Cluster of Multicores_**](http://www.pgas2013.org.uk/sites/default/files/finalpapers/Day2/R6/3_paper16.pdf)
**_Sai Charan Koduru_, Min Feng and Rajiv Gupta**
The 7th International Conference on PGAS Programming Models ([PGAS](http://www.pgas2013.org.uk/home)). Edinburgh, Scotland, UK, 3-4 October, 2013. + [**_An Empirical Analysis of the Bug-fixing Process in Open Source Android Apps_**](http://dx.doi.org/10.1109/CSMR.2013.23)
**Pamela Bhattacharya, Liudmila Ulanova, Iulian Neamtiu and _Sai Charan Koduru_**
The 17th European Conference on Software Maintenance and Reengineering ([CSMR](http://csmr2013.disi.unige.it)), 5-8 March 2013, Genova, Italy. + [**_N-Dimensional Baker Maps for Chaos Based Image Encryption_**](http://www.researchgate.net/publication/258864950_N-Dimensional_Baker_Maps_for_Chaos_Based_Image_Encryption)
**_Sai Charan Koduru_ and V. Chandrasekaran**
The IEEE International Conference on Emerging Trends in Computing ([IEEE ICETiC](http://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=14552), [Info](http://ieeecs-madras.managedbiz.com/link-web/0902/0902link-07.pdf)) 2009, Virudhunagar, Tamilnadu, India, pages 31-34, 8–10 January, 2009. + [**_Random-Walk based Baker maps for Chaos Based Image Encryption_**](http://www.researchgate.net/publication/220808903_RandomWalk_Based_Baker_Maps_for_Chaos_Based_Image_Encryption)
**_Sai Charan Koduru_ and V. Chandrasekaran**
The International Conference on Image Processing, Computer Vision, & Pattern Recognition ([IPCV](http://www.sigmod.org/dblp/db/conf/ipcv/ipcv2008.html)) 2008, Monte Carlo Resort, Las Vegas, Nevada, USA, 14–17 July, 2008. + [**_Integrated Confusion-Diffusion Mechanisms for Chaos Based Image Encryption_**](http://dx.doi.org/10.1109/CIT.2008.Workshops.33)
**_Sai Charan Koduru_ and V. Chandrasekaran**
The 8th IEEE International Conference on Computer and Information Technology ([IEEE CIT](http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=4586225)) 2008, Sydney, Australia, 8–11 July, 2008. + [**_A Block DCT Based Optical Character Recognition System_**](#imaginary)
**_Sai Charan Koduru_ and G.V. Prabhakar Rao**
Poster Presented at The International Conference on NexGen IT for Societal Advancement & Integration ([NexGen IT for SAI](http://www.sathyasai.org/news/2006/itconf.html)), Prashanthi Nilayam, India, 15-17 July 2006. Theses ------------ + *Size Oblivious Programming of Clusters for Irregular Applications*. [Doctoral Dissertation](http://www.cs.ucr.edu/~gupta/Thesis/Sai.pdf), (Ph.D.) University of California Riverside. Defended Theisis: September 2015, Degree Awarded: Dec 2015.
_Download thesis from The University of California (UC) Open Access System, [eScholarship](https://escholarship.org/uc/item/7dh8t5zd)_. + *Multi Dimensional Baker Maps for Chaos based Image Encryption*. [Master's Thesis](/assets/Multi.Dimensional.Baker.Maps.for.Chaos.Based.Image.Encryption.pdf) (MTech.), Sri Sathya Sai University, 2008. + *A Block DCT Based Optical Character Recognition System for Telugu Script*, [Master's thesis](/assets/Optical.Character.Recognition.pdf) (MSc.), Sri Sathya Sai Institute of Higher Learning, 2006. Talks ------------ + *Programming Applications with Very Large Data Sets*, Invited talk at [COSMIC Workshop](http://workshops.inf.ed.ac.uk/cosmic/program.html), [CGO 2013](http://www.cgo.org/cgo2013/index.html). Scholar ------------ Explore Sai Charan's work on [Google Scholar](http://scholar.google.com/citations?hl=en&user=3ucgckUAAAAJ) or [Microsoft academic search](http://academic.research.microsoft.com/Author/3838605/sai-charan-koduru). Research Log ------------ A reverse chronologically ordered log of notable events in Sai Charan's Doctoral program is his [research log](research-log.html). ]]> <![CDATA[Sai Charan, UC Riverside.]]> http://www.cs.ucr.edu/~scharan

Sai Charan received his Ph.D. from the University of California, Riverside in September 2015. He worked on his dissertation at the RIPLE lab and he was involved with the GRASP and SpiceC groups at the Computer Science department at University of California, Riverside.

His interests include Size Oblivious Programming, compiler, language, runtime monitoring support for parallel and distributed programming and applications, GPGPU programming and software engineering.

His thesis advisor was Prof. Rajiv Gupta.

Check out his , research & thoughts in general.

Sai's is a Senior Engineer working on Azure Data Lake Store.

]]> <![CDATA[About Sai]]> http://www.cs.ucr.edu/~scharan Biography ------------ Sai Charan is a researcher, [programmer](http://www.paulgraham.com/head.html), [hacker](http://en.wikipedia.org/wiki/Hacker_(programmer_subculture\)) & 'tinkerer'. He loves to build things & break things ([constructively](http://www.paulgraham.com/gh.html), of course!). In the past, he has held full-time positions as an R&D Software Engineer with [Nokia](http://www.nokia.com/) & a Senior Software Engineer at [Yahoo! Inc](http://smallbusiness.yahoo.com/). He spent the summers of 2013 and 2014 as a Researcher (intern) at Microsoft, Redmond working on performance isolation and storage in the Microsoft [COSMOS](http://research.microsoft.com/en-us/events/fs2011/helland_cosmos_big_data_and_big_challenges.pdf) [BigData](http://blogs.msdn.com/b/seliot/archive/2010/11/05/cosmos-petabytes-perfectly-processed-perfunctorily.aspx) [system](http://www.goland.org/whatiscosmos/). Sai's professional experience spans resource constrained mobile platforms to the unconstrained enterprise elastic cloud. He has extensive experience with mobile development, design & integration of web services for the mobile platforms, performance tuning & search technologies. He has also worked on enterprise payment systems, enterprise application security, [HTML generation technologies](http://en.wikipedia.org/wiki/RTML) & small business portal design & development. Sai received his Ph.D. in September 2015 from the Department of Computer Science at University of California, Riverside. His thesis advisor was Prof. Rajiv Gupta. You can find him on Google+, Twitter, LinkedIn and on Github. His primary blog is at http://saicharan.in/blog. He can be reached at scharan at cs.ucr.edu Honors & Awards ------------ + _**Best Student Paper Award**_, The 28th International Workshop on Languages and Compilers for Parallel Computing ([LCPC](http://www.csc2.ncsu.edu/workshops/lcpc2015/)), 2015. + _**University of California Riverside Graduate Student Association (GSA-UCR) [Travel Grant](http://gsa.ucr.edu/conference-travel-grants/)**_ to present our research at the HIPS workshop at IPDPS 2014. + _**Earle C. Anthony Graduate [Travel Award](http://senate.ucr.edu/gsta/application.html)**_ to present our research at the HIPS workshop at IPDPS 2014. + _**CGO 2013 [Travel Grant](http://cgo.org/cgo2013/travel-support-for-eligible-students/index.html)**_ to present our research at the 2013 International Symposium on Code Generation & Optimization (CGO) workshop, COSMIC at Shenzhen, China. + _**Dean’s Distinguished Fellowship**_ 2011 for the Graduate program at the University of California, Riverside. + _Youngest Member, Nokia Technical Committee_ – an elite body headed by the Director of Technology, Nokia, Bangalore, responsible for reviewing emerging technologies and their relevance to Nokia; early prototyping of pertinent technologies and recommending their adoption in products. + _**Nokia Kudos**_ awards (two awards) for turbo boosting the performance of Device Search project & for independent research and shipping of Nokia’s SSO project. Dec ’09 & Mar ’10. + _**President of India, Dr. A. P. J. Abdul Kalam Gold Medal**_ for excellence in M.Tech (CS). Nov 2008. + _**Sri R.V. Janakiramaiah Gold Medal**_ for excellence in M.Sc. (Math with specialization in CS). Nov 2006. + _**Justice P.N. Bhagawati Gold Medal**_ for excellence in the B.Sc. Honors (Mathematics). Nov 2004. Experience --------- + _Researcher (Intern)_, **Microsoft**, Redmond. Jun - Sep 2013. + _Research Assistant_, **University of California**, Riverside. March 2011 - present. + _Senior Software Engineer_, **Yahoo! Inc.**, Bangalore. Jun 2010 - Feb 2011. + _R&D Software Engineer_, **Nokia**, Bangalore. April 2008 - Jun 2010. + _System & Network Administrator_, [Dept. of Mathematics & Computer Science](http://sssihl.edu.in/dnn/Campuses/PrasanthiNilayamCampus/Departments/DepartmentofMathematicsAndComputerScience/Overview/tabid/262/Default.aspx), [SSSIHL](http://sssihl.edu.in). 2004 - 2008. + _Webmaster_, [Department of Mathematics & Computer Science](http://sssihl.edu.in/dnn/Campuses/PrasanthiNilayamCampus/Departments/DepartmentofMathematicsAndComputerScience/Overview/tabid/262/Default.aspx), [SSSIHL](http://sssihl.edu.in). 2004 - 2008. Education --------- + Doctor of Philosophy, **Computer Science**. University of California, Riverside. April 2011 -- Sep 2015. + Master of Technology, **Computer Science**. _Summa-cum-laude_, Sri Sathya Sai University, 2008. + Master of Science, **Mathematics with specialization in CS**. _Summa-cum-laude_, Sri Sathya Sai University, 2006. + Bachelor of Science (Honors), **Mathematics**. _Summa-cum-laude_, Sri Sathya Sai University, 2004. Professional Memberships ------ + Member, Association for Computing Machinery (ACM). + Member, Institute of Electrical and Electronics Engieers (IEEE). Résumé ------ Sai's [résumé](/assets/SaiCharan.pdf) (last updated: January 2018). Recommendations ------ Sai's professional recommendations are on [LinkedIn](https://www.linkedin.com/in/scharan#recommendations) (A LinkedIn account maybe required). Contact ------ Sai can be reached at [scharan-a@t-cs.ucr.edu](mailto:scharan-a@t-cs.ucr.edu). For additional privacy, please use his [PGP Key](http://www.saicharan.in/work/saicharan-pgp.asc). ]]> <![CDATA[Sai Charan's research log]]> http://www.cs.ucr.edu/~scharan 2: Adaptively Balancing Computation & Communication in a DSM cluster of Multicores for Irregular Applications'__. - Presented paper at PGAS 2013, Edinburg, Scotland, UK. - Jul 31, 2013: Paper accepted into PGAS 2013: __'Programming Large Dynamic Data Structures on a DSM Cluster of Multicores'__. - Jun - Sep 2013: Researcher (Intern), Microsoft, Redmond. - Feb 2013: Invited talk at COSMIC workshop at CGO 2013, Shenzhen, China. - Sep 2012: Advanced to Candidacy. - Summer 2012: Started work on large data apps. - Mar 2012: Completed all required course work (in 3 quarters); Submitted a joint paper on Analysis of Android Bug Reports. - Summer 2011: Worked monitoring & automatic configuration framework for multi-core processor environments. - Mar 2011: Started the PhD program at UC Riverside in the spring quarter. Sai's [research page](/research/) has the details. ]]> <![CDATA[Category: wisdom]]> http://www.cs.ucr.edu/~scharan

2012

]]> <![CDATA[Category: wisdom]]> http://www.cs.ucr.edu/~scharan <![CDATA[Category: wisdom | Sai Charan]]> 2019-02-05T19:01:37-08:00 http://www.cs.ucr.edu/~scharan/ <![CDATA[Sai Charan]]> Octopress <![CDATA[Wisdom from the ages]]> 2012-06-21T07:41:00-07:00 http://www.cs.ucr.edu/~scharan/blog/2012/06/21/wisdom-from-the-ages <![CDATA[

Most doctoral candidates and professors have a page with advice/guidance to prospective grad students. Well, in keeping with that tradition, here are my own favorites.

A more complete, comprehensive collection is Prof. Mark Leone’s how-to page.

]]> ]]> <![CDATA[Category: advice]]> http://www.cs.ucr.edu/~scharan

2012

]]> <![CDATA[Category: advice]]> http://www.cs.ucr.edu/~scharan <![CDATA[Category: advice | Sai Charan]]> 2019-02-05T19:01:37-08:00 http://www.cs.ucr.edu/~scharan/ <![CDATA[Sai Charan]]> Octopress <![CDATA[Wisdom from the ages]]> 2012-06-21T07:41:00-07:00 http://www.cs.ucr.edu/~scharan/blog/2012/06/21/wisdom-from-the-ages <![CDATA[

Most doctoral candidates and professors have a page with advice/guidance to prospective grad students. Well, in keeping with that tradition, here are my own favorites.

A more complete, comprehensive collection is Prof. Mark Leone’s how-to page.

]]> ]]> <![CDATA[Wisdom from the ages]]> 2012-06-21T07:41:00-07:00 http://www.cs.ucr.edu/~scharan/blog/2012/06/21/wisdom-from-the-ages Most doctoral candidates and professors have a page with advice/guidance to prospective grad students. Well, in keeping with that tradition, here are my own favorites.

A more complete, comprehensive collection is Prof. Mark Leone’s how-to page.

]]>