Are you taping this so the unwashed in Chicago (barely) can watch it? THanks, Matt On Thu, Apr 11, 2013 at 12:27 PM, Victor Eijkhout <[email protected]>wrote:
Begin forwarded message:
*From: *Allison Warner <[email protected]> *Subject: ****Reminder: TACC Seminar tomorrow -4/12/13* *Date: *April 11, 2013 11:51:07 AM CDT *To: *TACC Team <[email protected]>
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#<https://team.tacc.utexas.edu/staff-info/-/wikid/xJ3E/Main/TACC+Tech+Talks#section-TACC+Tech+Talks-April122013>
*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 ([email protected])**** 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 [email protected]
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-- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener