Last update:
Apr 1, 2000
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Worldwide Distrbuted Analysis for the Next Generations of HENP Experiments
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Harvey Newman
Caltech
Speaker:
Harvey Newman
The major particle and nuclear physics experiments of the next
twenty years will break new ground
in our understanding of the fundamental interactions and symmetries
governing the nature of matter and
spacetime. Realizing the scientific wealth of these experiments presents
new problems in data access,
processing and distribution, and collaboration across national and
international networks, on a scale
unprecedented in the history of science. The challenges include:
o The extraction of small or subtle new physics signals from
large and potentially overwhelming backgrounds.
o Providing rapid access to event samples and subsets drawn
from massive data stores, rising from 100s of TeraBytes in 2000 to PetaBytes by 2005, to 100
PetaBytes by 2010.
o Providing transparent access to heterogeneous
worldwide-distributed computing and data handling resources, across an ensemble of networks of
varying capability and reliability.
o Providing the collaborative infrastructure that will make it
possible for physicists in all world regions to contribute effectively to the analysis and the
physics results, including from their home institutions.
In my talk I will provide a perpective on the key computing,
networking and software issues, and the
ongoing R&D aimed at building a worldwide-distributed system to meet
these diverse challenges. Over
the last year this concept has evolved into that of a data-intensive,
hierarchical "Grid" of national and regional
centers linked to the principal center at the experimental site, and to
local computing resources. I will
touch on the synergy between these developments and work Grids in other
fields, while highlighting the
particular factors that affect the design and optimization of a Grid
system to meet the needs of major
HENP experiements.
Presentation:  |
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