...
What
...
is
...
XSEDE
...
?
...
The
...
Extreme
...
Science
...
and
...
Engineering
...
Discovery
...
Environment
...
(XSEDE),
...
funded
...
by
...
the
...
NSF
...
(National
...
Science
...
Foundation)
...
is
...
the
...
next
...
generation
...
replacement
...
for
...
TeraGrid.
...
The
...
goal
...
is
...
to
...
provide
...
access
...
to
...
super
...
computer
...
resources
...
for
...
US
...
based
...
researchers
...
as
...
well
...
as
...
expand
...
into
...
new
...
avenues
...
such
...
as
...
research
...
collaboration.
...
Training,
...
Education,
...
and
...
Outreach
...
are
...
a
...
significant
...
component
...
of
...
Xsede
...
and
...
there
...
are
...
many
...
fantastic
...
resources
...
available.
...
What
...
is
...
available
...
?
...
Xsede
...
provides
...
access
...
to
...
a
...
number
...
of
...
very
...
large
...
systems,
...
many
...
with
...
hundreds
...
of
...
thousands
...
of
...
cpu
...
cores,
...
high
...
speed
...
interconnections
...
and
...
fast
...
storage.
...
High
...
memory,
...
shared
...
memory
...
systems
...
are
...
available
...
along
...
with
...
a
...
large
...
number
...
of
...
GPGPU
...
(General
...
Purpose
...
Computation
...
on
...
Graphics
...
Processing
...
Units)
...
and
...
acceleration
...
units
...
such
...
as
...
those
...
available
...
from
...
Nvidia,
...
AMD
...
and
...
Intel
...
MIC
...
(Many
...
Integrated
...
Core).
...
Rather
...
than
...
duplicate
...
the
...
list,
...
please
...
see
...
the
...
following
...
https://www.xsede.org/web/guest-staging/resources
...
How
...
to
...
apply
...
?
...
Xsede
...
provides
...
a
...
number
...
of
...
ways
...
to
...
get
...
a
...
resource
...
allocation
...
on
...
member
...
systems.
...
Please
...
review
...
the
...
following
...
pages.
...
...
...
How
...
does
...
Tufts
...
participate
...
in
...
Xsede
...
?
...
Currently
...
RGTS
...
(Research
...
and
...
Geospatial
...
Technology
...
Services)
...
aids
...
in
...
dissemination
...
of
...
information
...
regarding
...
available
...
Xsede
...
resources,
...
how
...
to
...
apply
...
for
...
allocations
...
and
...
basic
...
information
...
regarding
...
access,
...
usage
...
and
...
file
...
transfer.
...
As
...
part
...
of
...
Tufts
...
connection
...
to
...
Internet2
...
we
...
have
...
high
...
speed
...
access
...
to
...
systems
...
on
...
Xsede.
...
How
...
to
...
get
...
help
...
?
...
Two
...
avenues
...
are
...
available
...
for
...
receiving
...
help.
...
- Local:
...
- You
...
- can
...
- open
...
- a
...
- ticket
...
- at
...
...
- or
...
...
- it@tufts.edu
...
- Please
...
- specifically
...
- mention
...
- Xsede
...
- so
...
- the
...
- ticket
...
- gets
...
- routed
...
- properly
...
- to
...
- RGTS
...
- (Research
...
- and
...
- Geospatial
...
- Technology
...
- Services)
...
- It
...
- is
...
- very
...
- important
...
- that
...
- we
...
- know
...
- locally
...
- who
...
- is
...
- accessing
...
- Xsede
...
- and
...
- what
...
- questions
...
- you
...
- have.
...
- Xsede:
...
- For
...
- escalation
...
- to
...
- the
...
- Xsede
...
- helpdesk
...
- you
...
- can
...
- go
...
- to
...
...
- or
...
...
- help@xsede.org
...
- both
...
- of
...
- which
...
- will
...
- open
...
- a
...
- ticket.
...
- You
...
- can
...
- also
...
- reach
...
- the
...
- Xsede
...
- helpdesk
...
- 24/7
...
- by
...
- telephone
...
- at
...
- 1-866-907-2383
...
How
...
to
...
access
...
resources
...
?
...
Check
...
out
...
the
...
Xsede
...
user
...
guides
...
for
...
each
...
system
...
in
...
question
...
https://www.xsede.org/web/guest/user-guides
...
Generally
...
speaking
...
most
...
Xsede
...
systems
...
are
...
configured
...
in
...
a
...
similar
...
fashion
...
and
...
are
...
accessed
...
via
...
ssh
...
like
...
other
...
HPC
...
systems
...
around
...
the
...
world.
...
How
...
to
...
copy
...
files
...
?
...
Similar
...
to
...
using
...
ssh
...
to
...
login,
...
you
...
can
...
use
...
sftp,
...
scp,
...
and
...
rsync
...
over
...
ssh
...
to
...
copy
...
files
...
to
...
a
...
system
...
on
...
Xsede.
...
If
...
your
...
files
...
are
...
on
...
the
...
Tufts
...
compute
...
cluster
...
they
...
will
...
copy
...
over
...
to
...
Xsede
...
much
...
faster
...
than
...
from
...
a
...
typical
...
desktop,
...
workstation
...
or
...
laptop
...
on
...
wifi
...
or
...
a
...
wired
...
1GB
...
network
...
drop.
...
Please
...
feel
...
free
...
to
...
contact
...
Tufts
...
staff
...
to
...
make
...
sure
...
your
...
file
...
copy
...
procedures
...
are
...
as
...
efficient
...
as
...
possible.
...
- Is
...
- Globus
...
- supported
...
- at
...
- Tufts
...
- as
...
- a
...
- file
...
- transfer
...
- mechanism?
...
- Currently
...
- no
...
- though
...
- this
...
- is
...
- being
...
- examined.
...
- Globus
...
- is
...
- based
...
- upon
...
- GridFTP
...
- and
...
- allows
...
- for
...
- higher
...
- speed
...
- transfer,
...
- via
...
- multiple
...
- data
...
- paths,
...
- than
...
- typical
...
- tools
...
- such
...
- as
...
- scp,
...
- sftp,
...
- and
...
- rsync.
...
- This
...
- is
...
- of
...
- particular
...
- importance
...
- as
...
- files
...
- and
...
- datasets
...
- get
...
- larger.
...
- Globus
...
- also
...
- allows
...
- for
...
- disconnected
...
- transfer
...
- and
...
- restart
...
- of
...
- large
...
- file
...
- copies.
...
- Is
...
- Aspera
...
- supported
...
- at
...
- Tufts
...
- as
...
- a
...
- file
...
- transfer
...
- mechanism?
...
- As
...
- far
...
- as
...
- we
...
- know
...
- Aspera
...
- is
...
- not
...
- deployed
...
- on
...
- Xsede
...
- yet
...
- though
...
- it
...
- is
...
- being
...
- examined.
...
How
...
do
...
I
...
chose
...
between
...
the
...
Tufts
...
HPC
...
(High
...
Performance
...
Compute)
...
cluster
...
and
...
Xsede
...
?
...
The
...
decision
...
is
...
not
...
mutually
...
exclusive
...
as
...
both
...
clusters
...
are
...
general
...
purpose
...
clusters
...
running
...
a
...
wide
...
variety
...
of
...
software
...
for
...
a
...
an
...
equally
...
broad
...
user
...
base.
...
Typically
...
if
...
you
...
are
...
running
...
custom
...
code
...
it
...
should
...
be
...
compiled
...
individually
...
for
...
each
...
system
...
.
...