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Streamlining HPC Workloads
with Containers
@DustinKirkland
what does
high-performance computing
look like?
Wikipedia
says...
Or perhaps in China...
Google image search shows...
The
university
student
learns...
HackerNews suggests...
Your DevOps engineer launches...
x1.32xlarge
But
then
there
is
your
real,
actual
data
center...
what do all of these
have in common?
a lot,
actually
they’re all running
Linux
directly on the
bare metal itself
performance is
maximized
overhead is
minimized
big problems are
distributed across a cluster
everyone prefers a
clean environment
virtual machines
always involve overhead
VM MonitorVMXON VMXOFF
Guest
VM EntryVM Exit
oh, and let’s reboot
a datacenter
Streamlining HPC Workloads with Containers
BIOS is checking memory for problems…
Scanning 1,199,511,627,776 bytes…
This may take several minutes…
Running test 1 of 8: 1.0% complete
Overall test status: 0.1% complete
Time elapsed: 17m23s
Status:
No problems have been found yet.
Streamlining HPC Workloads with Containers
so let’s have a look at
containers
first,
process containers
awesome for HPC
functions
Streamlining HPC Workloads with Containers
Streamlining HPC Workloads with Containers
Streamlining HPC Workloads with Containers
LXD
second,
machine containers
Streamlining HPC Workloads with Containers
➢ Ultra fast “vm-lite” guests (bare metal speed)
➢ Any distribution of Linux - e.g. Ubuntu, CentOS
➢ Starts in less than 1 second
➢ 15x density of KVM or ESX for idle workloads
host A
nova-lxd lxc cli
lxdkernel
other restful apps
lxc
machine
LXD REST API
host B
lxc
machine
lxdkernel
host C host D host ...
lxc
machine
lxc
machine
lxc
machine
lxdkernel lxdkernel lxdkernel
➢ Ultra fast “vm-lite” guests (bare metal speed)
➢ Any distribution of Linux - e.g. Ubuntu, CentOS
➢ Starts in less than 1 second
➢ 15x density of KVM or ESX for idle workloads
host A
nova-lxd lxc cli
lxdkernel
other restful apps
LXD REST API
host B
lxdkernel
host C host D host ...
lxdkernel lxdkernel lxdkernel
lxc
machine
lxc
machine
lxc
machine
lxc
machine
lxc
machine
CPU Cores
CPU Cycles
Memory
Disk Space
Disk IO
Network IO
One LXD container,
with 100% of the system:
“alloy” mode
exclusive access
to system resources
but secured from the
underlying hardware and OS
cgroups, user namespaces,
apparmor, seccomp
instant
startup
looks like a machine,
Linux on Linux
zero
latency
zero
overhead
identical
performance
snapshot
restore
live
migration
demo
ubuntu.com/lxd
github.com/lxc
linuxcontainers.org

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