[petsc-dev] John McCalpin talk: Explicit Hardware and Software Semantics for Data Movement in Parallel Computing

[Matthew Knepley]

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
<eijkhout at tacc.utexas.edu>wrote:

>
>
> Begin forwarded message:
>
>  *From: *Allison Warner <allison at tacc.utexas.edu>
>  *Subject: ****Reminder: TACC Seminar tomorrow -4/12/13*
>  *Date: *April 11, 2013 11:51:07 AM CDT
>  *To: *TACC Team <team at 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#<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 (awarner at 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 at tacc.utexas.edu
>
>
>
>  **
>
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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
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