Begin forwarded message:

From: Allison Warner <allison@tacc.utexas.edu>

Subject: **Reminder: TACC Seminar tomorrow -4/12/13

Date: April 11, 2013 11:51:07 AM CDT

To: TACC Team <team@tacc.utexas.edu>

Join us tomorrow for part two of the TACC seminar: Explicit Hardware and Software Semantics for Data Movement in Parallel Computing at 1pm in ROC 1.900- the new seminar room.

April 12, 2013#

John McCalpin


Explicit Architectural Support for Data Movement and Interprocess Communication

Abstract: 
Despite their substantial complexity, current computer architectures are, in several important ways, essentially unchanged from the single-processor, flat-memory, modified Harvard architectures first developed in the late 1960's. Current technology, on the other hand, has completely different balances than it did 40+ years ago, so that massive investments in processor design are now required to hide the fundamental (and growing) mismatch between what the architectures make visible and what the technology makes expensive. 
In the context of current technology, the most important factors in application performance are often related to control of data motion "vertically" through the memory/cache hierarchy and to efficiently performing communication/synchronization operations "horizontally" between cooperating parallel processes. These data transfers are expected to dominate the power budget as well as the performance equation in future systems. 
Current architectures do not provide the features to manage or optimize these operations. Several examples of performance, power, and/or cost benefits of providing architectural control over data motion and communication/synchronization will be presented and discussed. 


Bio: 
John McCalpin is a Research Scientist in the HPC Group of the Texas Advanced Computing Center. McCalpin began his career in HPC working in large-scale ocean circulation modeling, then spent 12 years in industry, holding leadership positions in the system architecture and processor performance teams at SGI, IBM, and AMD. McCalpin has been at TACC since 1999, where he focuses on performance analysis, performance tools, and architecture evaluation. 

Please join me in an Adobe Connect Meeting.

 

Meeting Name:  TACC Seminar Series

Summary:

Invited By: Allison Warner (awarner@tacc.utexas.edu)

When:  04/12/2013 1:00 PM - 2:00 PM

Time Zone:  (GMT-06:00) Central Time (US and Canada)

 

Conference Number(s):  1-877-820-7831

Participant Code: 124574#

 

To join the meeting:

https://meeting.austin.utexas.edu/taccseminar/

____________________________________

Allison Warner

Executive Assistant

Texas Advanced Computing Center

The University of Texas at Austin

(512) 475-9451

allison@tacc.utexas.edu

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