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SWIFT
SWIFTweb
Commits
b13a4780
Commit
b13a4780
authored
7 years ago
by
Matthieu Schaller
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Added EWASS 2018 talk.
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Added EWASS 2018 talk.
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# references. Nominally we will use /talks.
cards
:
-
meeting
:
European Week of Astronomy and Space Science
2018
location
:
Liverpool, UK
date
:
April
2018
title
:
"
The
next-generation
cosmological
code
SWIFT"
author
:
Matthieu Schaller
abstract
:
"
One
of
the
big
challenges
in
simulations
of
galaxy
formation
is
to
harness
the
raw
computing
power
of
the
largest
facilities.
With
current
codes
gravity+hydrodynamics
code
achieving
less
than
0.1%
of
the
available
flops,
it
is
important
to
revisit
how
we
write
code
for
such
systems
and
how
we
interact
with
the
wider
HPC
community.
We
present
the
next-generation
open-source
cosmological
code
SWIFT,
created
as
a
joint
effort
between
galaxy
formation
scientists
and
computer
scientists
with
expertise
in
parallel
programming.
Using
task-based
parallelism
for
intra-node
parallelisation,
asynchronous
communications
for
inter-node
communications
and
SIMD
intrinsics
for
the
code
kernels,
our
code
is
more
than
30x
faster
than
the
de-facto
standard
Gadget
code
on
representative
cosmological
problems.
The
code
also
uses
much
fewer
resources
allowing
to
run
simulations
an
order
of
magnitude
larger
than
is
currently
doable
(e.g.
EAGLE,
Illustris,
Horizon-AGN,...).
We
implement
multiple
SPH
and
unstructured
hydrodynamics
solvers
as
well
as
a
full
test
suite
to
assess
the
accuracy
of
the
schemes
in
various
situations.
This
test
suite
is
part
of
the
code
release
and
we
highlight
good
programming
practices
to
make
sure
the
software
is
usable
by
the
community
and
interfaces
well
with
other
tools
(e.g.
yt,
paraview,
...)."
links
:
-
href
:
"
EWASS_2018.pdf"
name
:
Slides
-
meeting
:
Computational Galaxy Formation
2018
location
:
Ringberg Castle, Tegernsee, Germany
date
:
March
2018
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