Topic 'Re: Top 500 Supercomputers - November 2012' in forum 'All Things Unix' - dslreports.com

Re: Top 500 Supercomputers - November 2012

Fri, 16 Nov 2012 18:55:44 EDT

dave posted : Doesn't come with a sofa, though.

Re: Top 500 Supercomputers - November 2012

Fri, 16 Nov 2012 15:40:15 EDT

anon posted :

said by Cray :

Cray XE6 systems utilize the Cray Linux Environment™ (CLE). CLE is a suite of high performance software which includes a Linux-based operating system designed to run large complex applications and scale efficiently to more than 500,000 processor cores. The Linux environment features a compute kernel which can be configured to match different workloads.

Re: Top 500 Supercomputers - November 2012

Fri, 16 Nov 2012 13:20:42 EDT

DarkLogix posted :

said by Archivis:

Who does that on a super computer?

Lots of them

I was reading about one of the top10 awhile back
they had a mix of unix linux and BSD for different roles in the system

all one huge cluster with roles parted out into different clusters

the storage servers ran one OS that they picked was most ideal for it

the CPU crunching ran another

and I forgot what ran the third

Re: Top 500 Supercomputers - November 2012

Fri, 16 Nov 2012 13:14:03 EDT

anon posted :

said by Cray :

- Cray XC30 systems utilize the Cray Linux Environment™ (CLE).
- The Cray XK7 system ships with the latest Cray Linux Environment™ (CLE)
- Cray’s use of open standards in software (Linux-based operating system...
- Cray Sonexion provides a fully integrated, scale-out Lustre storage system for industry-standard Linux compute clusters.
- Operating System Cray Linux Environment (components include SUSE Linux SLES11, HSS and SMW software)
- HPC environments with a Linux-based operating system...

etc.

Re: Top 500 Supercomputers - November 2012

Fri, 16 Nov 2012 09:12:23 EDT

dave posted : Naturally, that's a supercomputer architecture without (modern) supercomputer speeds.

You may be better off building a Cray-1.

Re: Top 500 Supercomputers - November 2012

Fri, 16 Nov 2012 08:47:26 EDT

kleeman posted : Supercomputer clusters are turning into hobby items

»www.engadget.com/2012/09/13/supe···nd-lego/

with linux of course....
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Re: Top 500 Supercomputers - November 2012

Thu, 15 Nov 2012 22:41:22 EDT

dave posted :

said by Archivis:

What the hell is "mixed"?

Some processor nodes run one operating system, other nodes run a different operating system.

This might be done when the archiecture is such that different nodes have different specialization, e.g., compute node versus I/O node.

»en.wikipedia.org/wiki/Supercompu···_systems

Re: Top 500 Supercomputers - November 2012

Thu, 15 Nov 2012 17:56:23 EDT

Archivis posted :

said by El Quintron:

said by Archivis:

I've seen the high end stuff take up to 10-15 minutes to fully boot up.

Wouldn't that account for it Launching all these individual virtual machines, and assigning the amount of cores and ram to them?

No.

These boot up times are strictly for powering on the servers. When you have dozens of cores and hundreds of gigs of RAM or even terabytes of RAM with multiple fibre cards and multiple network cards, it can take a while for everything to come up.

At that point, I can power on the virtual servers from there, which is standard OS boot time.

My example is talking about IBM Power frames running AIX. The frame can take 10-15 minutes to come up in some cases. There are virtual I/O servers that manage the hardware resources (an OS that virtualizes/load balances/creates redundancy) and then the actual LPARs (Logical Partitions, the equivalent to VMs in the rest of the world).
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Re: Top 500 Supercomputers - November 2012

Thu, 15 Nov 2012 17:11:56 EDT

anon posted : Linux share in Supercomputer OS:

The supercomputers which employ Mixed Operating system use CNK/SLES 9.

● SUSE Linux Enterprise Server
● CNK operating system

Re: Top 500 Supercomputers - November 2012

Thu, 15 Nov 2012 13:17:30 EDT

El Quintron posted :

said by Archivis:

I've seen the high end stuff take up to 10-15 minutes to fully boot up.

Wouldn't that account for it Launching all these individual virtual machines, and assigning the amount of cores and ram to them?
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Re: Top 500 Supercomputers - November 2012

Thu, 15 Nov 2012 09:01:50 EDT

Archivis posted : You could be surprised. I don't work on any super computers, but I do work on servers that have multiple drawers of hardware, comprising of just a single server. These servers are usually multi-million dollar servers. They take a while to fire up and get to work. They don't actually run any OS that you're familiar with. They run their own OS that manages the hardware and then everything gets virtually sliced out so that you can run dozens or hundreds of virtual servers on a single physical server.

I've seen the high end stuff take up to 10-15 minutes to fully boot up.
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A government big enough to give you everything you want, is strong enough to take everything you have. -MLK

Re: Top 500 Supercomputers - November 2012

Thu, 15 Nov 2012 01:14:00 EDT

Kearnstd posted : I cannot imagine how awesomely fast the kernel must compile on super computer grade hardware.
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Re: Top 500 Supercomputers - November 2012

Wed, 14 Nov 2012 21:09:23 EDT

Archivis posted : The reason why most super computers run Linux is because most of the other operating systems aren't built for super computers. Servers are mostly virtualized now and are usually designed to run one major application per server.

I'm a Unix systems administrator, which includes AIX, Solaris, RedHat, SCO, and a handful of other flavors. AIX is meant to run on IBM Power Systems. They have some very powerful and stable equipment, but it isn't meant to run on a super computer, which is really just a bunch of other computers chained together.

The reason why Linux runs the super computers is because it is the only OS in which a person/company can write open source software to make it compatible with the hardware.
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Re: Top 500 Supercomputers - November 2012

Wed, 14 Nov 2012 17:13:38 EDT

BBBanditRuR posted : Unknown - but whatever it is, it's declining.

Re: Top 500 Supercomputers - November 2012

Wed, 14 Nov 2012 16:51:15 EDT

Kearnstd posted : could mixed mean that some control terminal(or whatever you call what is used to send these number crunching monsters their next batch of jobs. as I am going to guess Titan has no keyboard and monitor port itself.) So would it be mixed if say a terminal running windows was sending the super computer jobs via SSH in Putty?

Or a workstation running Linux was sending commands to the super computer which is running Unix or BSD. would that count as one unit still and as such make it "mixed"
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Re: Top 500 Supercomputers - November 2012

Wed, 14 Nov 2012 16:48:22 EDT

El Quintron posted :

said by Archivis:

Who does that on a super computer?

That's a good question,

I would presume you could keep your Super Computer crunching or calculating while doing something else in a virtual machine, which would qualify as a mixed OS.

Your guess is as good as mine.
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Re: Top 500 Supercomputers - November 2012

Wed, 14 Nov 2012 16:07:05 EDT

Archivis posted : Who does that on a super computer?

Re: Top 500 Supercomputers - November 2012

Wed, 14 Nov 2012 13:32:07 EDT

El Quintron posted :

said by Archivis:

What the hell is "mixed"?

Multi-OS, and dual-boot machines I'd assume.
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Re: Top 500 Supercomputers - November 2012

Tue, 13 Nov 2012 16:12:58 EDT

Archivis posted : What the hell is "mixed"?

Re: Top 500 Supercomputers - November 2012

Mon, 12 Nov 2012 17:59:54 EDT

anon posted :

said by firephoto:

Even the white pie dividers have more pie than Windows. ;)

LOL. :)

Re: Top 500 Supercomputers - November 2012

Mon, 12 Nov 2012 14:56:17 EDT

shdesigns posted : Nice PR boost for AMD; uses Opteron CPU's ;)

Re: Top 500 Supercomputers - November 2012

Mon, 12 Nov 2012 14:09:13 EDT

firephoto posted : Even the white pie dividers have more pie than Windows. ;)
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Re: Top 500 Supercomputers - November 2012

Mon, 12 Nov 2012 14:04:13 EDT

Kearnstd posted : not really a surprise.

Linux is open source and the people building the super computers can compile kernels to their exact needs from source.
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Top 500 Supercomputers - November 2012

Mon, 12 Nov 2012 13:16:39 EDT

anon posted : Source: Top500 Statistics