Josep Torrellas
Saburo Muroga Professor of Computer Science
University of Illinois at Urbana-Champaign
(torrella@illinois.edu) Google Scholar


NEW: November 2016: Torrellas elected Fellow of the American Association for the Advancement of Science (AAAS).

March 2016: Torrellas elected to the Computing Research Association (CRA) Board of Directors.

January 2016: Torrellas named Saburo Muroga Professor of Computer Science at the University of Illinois at Urbana-Champaign.

Josep Torrellas is the Saburo Muroga Professor of Computer Science at the University of Illinois at Urbana-Champaign (UIUC). He is the Director of the Center for Programmable Extreme Scale Computing, and past Director of the Illinois-Intel Parallelism Center (I2PC). He is a Fellow of IEEE (2004) and ACM (2010). He received the IEEE Computer Society 2015 Technical Achievement Award, for "Pioneering contributions to shared-memory multiprocessor architectures and thread-level speculation". He is a member of the Computing Research Association (CRA) Board of Directors. He has served as the Chair of the IEEE Technical Committee on Computer Architecture (TCCA) (2005-2010) and as a Council Member of CRA’s Computing Community Consortium (CCC) (2011-2014). He was a Willett Faculty Scholar at UIUC (2002-2009). As of 2016, he has graduated 36 Ph.D. students, who are now leaders in academia and industry.

Biography of Josep Torrellas.


Torrellas leads The i-acoma Architecture Group, which focuses on new processor, memory, and system technologies and organizations to build novel multiprocessor computer architectures. The two main projects are:

Recent Designed Architectures:

Recent News:

Some Recent Publications:

Software Released:

  • VARIUS and VARIUS-NTV: A model of within-die process variation and resulting timing errors in manycores for microarchitects.
  • SESC: A cycle accurate architectural simulator that models a very wide set of architectures: superscalars, multiprocessors, processors in memory, and thread-level speculation.

Emphasis Research Areas:

The main emphasis research areas in the group are:

Currently Teaching:

CS533: Parallel Computer Architectures.

Contact Information

Josep Torrellas
4231 Thomas M. Siebel Center for Computer Science.
University of Illinois.
201 N. Goodwin Ave.
Urbana, IL. 61801.
Phone (217) 244-4148, fax 217-265-6582.
E-mail: torrella@illinois.edu

Administrative Assistant

Sherry Unkraut,
Thomas M. Siebel Center for Computer Science.
University of Illinois.
201 N. Goodwin Ave.
Urbana, IL. 61801.
Phone (217) 244-6621, fax 217-265-6582.
E-mail: sunkraut@illinois.edu

Our research is funded by NSF, DARPA, and DOE.