Josep Torrellas (born 1963, Montblanc, Spain) is Professor and Willett Faculty Scholar in the Department of Computer Science and a research faculty for the Universal Parallel Computing Research Center at the

University of Illinois Urbana–Champaign The University of Illinois Urbana-Champaign (U of I, Illinois, University of Illinois, or UIUC) is a public land-grant research university in Illinois in the twin cities of Champaign and Urbana. It is the flagship institution of the University ...

. Torrellas's research area is

computer architecture In computer engineering, computer architecture is a description of the structure of a computer system made from component parts. It can sometimes be a high-level description that ignores details of the implementation. At a more detailed level, t ...

, focusing on speculative multithreading,

multiprocessor Multiprocessing is the use of two or more central processing units (CPUs) within a single computer system. The term also refers to the ability of a system to support more than one processor or the ability to allocate tasks between them. There ar ...

organization, integration of processors and memory, and architectural support for software debuggability and machine reliability. He has been involved in the

Stanford DASH Stanford DASH was a cache coherent multiprocessor developed in the late 1980s by a group led by Anoop Gupta, John L. Hennessy, Mark Horowitz, and Monica S. Lam at Stanford University. It was based on adding a pair of directory boards designed at ...

and the Illinois Cedar multiprocessor projects, and led the Illinois Aggressive

COMA A coma is a deep state of prolonged unconsciousness in which a person cannot be awakened, fails to respond normally to painful stimuli, light, or sound, lacks a normal wake-sleep cycle and does not initiate voluntary actions. Coma patients exhi ...

and FlexRAM Intelligent Memory projects. Torrellas has contributed to many

NSF NSF may stand for: Political organizations *National Socialist Front, a Swedish National Socialist party *NS-Frauenschaft, the women's wing of the former German Nazi party *National Students Federation, a leftist Pakistani students' political gr ...

DARPA The Defense Advanced Research Projects Agency (DARPA) is a research and development agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military. Originally known as the Adv ...

and DOE funding initiatives. The Aggressive COMA research project was selected as one of the "Eight Point-Design Studies" that

, NSF, NSA and NASA supported in the mid-nineties in a nationwide effort to accelerate the arrival of a

petascale Petascale computing refers to computing systems capable of calculating at least 1015 floating point operations per second (1 petaFLOPS). Petascale computing allowed faster processing of traditional supercomputer applications. The first system to ...

machine. He has received as lead PI several multimillion-dollar NSF grants, and is the lead PI of two medium ITR grants. He has directed projects in several DARPA initiatives, including the recent "Polymorphous Computer Architectures" (PCA), and "

High Productivity Computing Systems High Productivity Computing Systems (HPCS) is a DARPA project for developing a new generation of economically viable high productivity computing systems for national security and industry in the 2002–10 timeframe. The HPC Challenge (High-perfo ...

" (HPCS). In the HPCS program, he is playing a leading role in helping define the architecture of IBM's

PERCS PERCS (Productive, Easy-to-use, Reliable Computing System) is IBM's answer to DARPA's High Productivity Computing Systems (HPCS) initiative. The program resulted in commercial development and deployment of the Power 775, a supercomputer design ...

multiprocessor (

POWER7 POWER7 is a family of superscalar multi-core microprocessors based on the Power ISA 2.06 instruction set architecture released in 2010 that succeeded the POWER6 and POWER6+. POWER7 was developed by IBM at several sites including IBM's Roche ...

). He is also involved in DOE's Extreme Scale Computation initiative. Torrellas has been at the University of Illinois since receiving his PhD in Electrical Engineering from

Stanford University Stanford University, officially Leland Stanford Junior University, is a private research university in Stanford, California. The campus occupies , among the largest in the United States, and enrolls over 17,000 students. Stanford is consider ...

in 1992. He also spent a sabbatical year as Research Staff Member at IBM's T.J. Watson Research Center. Torrellas is an

IEEE The Institute of Electrical and Electronics Engineers (IEEE) is a 501(c)(3) professional association for electronic engineering and electrical engineering (and associated disciplines) with its corporate office in New York City and its operation ...

and ACM Fellow and member of the National Computational Science Alliance (NCSA) and the DOE Illinois

Center for the Simulation of Advanced Rockets The Center for Simulation of Advanced Rockets (CSAR) is an interdisciplinary research group at the University of Illinois at Urbana-Champaign, and is part of the United States Department of Energy's Advanced Simulation and Computing Program. CSAR's ...

(CSAR). He is currently the Chairman of IEEE Technical Committee on Computer Architecture (TCCA), an Associate Editor of the ACM Transactions on Architecture and Code Optimization (TACO), and a Member of the Advisory Board of the ECE Department,

University of Rochester The University of Rochester (U of R, UR, or U of Rochester) is a private research university in Rochester, New York. The university grants undergraduate and graduate degrees, including doctoral and professional degrees. The University of Roc ...

. He previously served as Vice-Chairman and Member of the Advisory Board of IEEE TCCA from 1998 to 2005. Torrellas has received an NSF Young Investigator Award, an NSF RIA, and an IBM Partnership Award.

Links

Universal Parallel Computing Research Center (UPCRC) at Illinois

i-acoma Architecture Group
at the University of Illinois
Illinois OpenSPARC Center

Parallel Computing Research at Illinois: The UPCRC Agenda

Illinois Department of Computer Science

References

{{DEFAULTSORT:Torrellas, Josep University of Illinois Urbana-Champaign faculty Fellow Members of the IEEE IBM employees Living people Fellows of the Association for Computing Machinery 1963 births Date of birth missing (living people) Spanish emigrants to the United States