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A clip of the old 80's docu-film about a nuclear
attack on Sheffield by the Soviet Union, as WW3
begins.
Tags : Threads nuclear sheffield bomb |
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Affichage : 23003
Durée : 477 s |
| Getting C++ Threads Right |
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Google Tech Talks
December, 12 2007
ABSTRACT
The advent of multicore processors has generated
profound debate on the merits of writing parallel
programs with threads and locks. Nonetheless, for
many application domains, this remains the
standard paradigm for writing parallel programs,
and at the moment, there is no apparent universal
replacement. And it is the focus of this talk.
Somewhat surprisingly, there are a number of often
subtle, but generally fixable, industry-wide
problems with current approaches to threads
programming. We'll focus on probably the most
widely used environments, consisting of C or C++
with a standard threads library. Problems span the
spectrum from system libraries through language
implementations through supporting hardware. They
get in the way both in that they often make it
difficult to write 100% reliable multi-threaded
software, and in that they confuse even the basics
of the programming model, thus making it hard to
teach. A surprising number of "experts"
do not understand the basic rules. Arguably, these
problems really need to be addressed to even allow
a meaningful comparison to other parallel
programming approaches.
Since solutions to these problems generally
require a coordinated industry effort, we helped
to persuade the C++ standards committee to address
them by pursuing a coherent approach to threads in
the next C++ standard. The talk will outline some
of the proposed solutions, and give an update on
this effort.
Speaker: Hans Boehm
Hans Boehm is a member of the advanced
architecture group at HP Labs. He has worked on
many aspects of programming language design and
implementation, including garbage collection and
concurrency, and he was HP's representative to the
effort to redesign Java's memory model. He is a
past Chair of ACM SIGPLAN, and is an ACM
Distinguished Scientist.
Tags : google techtalks techtalk engedu talk talks googletechtalks education |
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Affichage : 24516
Durée : 4216 s |
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