Linux Kernels 2.7.* and up support 4 Petabytes

[jimbo45]

Hi all
just noting whilst MS is mulling over a 128 bit version of the OS, the current Linux kernel (2.7.X) supports 4PB RAM 4 Petabytes -- not that I've even SEEN a system with that much. I haven't even seen a PC with 1 TB of RAM yet. Most of us still wonder what to do with > 4GB RAM.

What exactly would you run on it apart from a Big Brother app watching over every inhabitant on the planet from cradle to grave. :devil:

Cheers
jimbo

 

[sup3rsprt]

I haven't even seen a PC with 1 TB of RAM yet. Most of us still wonder what to do with > 4GB RAM.

hehe. I see a couple of motherboards on the egg which support a maximum of 24GB... 1TB is what, 40 something times that? Or the server boards go up to 256GB I guess, but they're out of my price range

So yeah, I'd say we have a long way to go for 128-bit. Then again with 128-bit maybe it's not the amount of memory addresses we are really after.

 

[Tews]

What exactly would you run on it apart from a Big Brother app watching over every inhabitant on the planet from cradle to grave. :devil:

Cheers
jimbo

Anything I want!! :roflmao:

 

[swarfega]

I think the current top supercomputer is either 1 or 2 petas

 

[raj11650]

Hi all
Most of us still wonder what to do with > 4GB RAM.

. :devil:

Cheers
jimbo

just try to rip a blue ray movie to know why u need more than 4GB RAM or Quad core or i7 processor!!!

yeah its not for everyone!!!

 

[Gemini Man]

I need 4 petabytes of ram so my computer can become ridiculously fast with no effort on my part, and thus make me an incredibly impatient person in real life.

 

[chuckr]

I think the current top supercomputer is either 1 or 2 petas

That's peta FLOPs -- executions...

http://www.lanl.gov/asc/docs/rr_factsheet.pdf

Memory is only 98 Terabytes:
49 for AMD Opterons
49 for IBM Cells.

Since they're running Fedora Linux, maybe they're getting ready to do some serious computing...

Nice to see IBM and AMD "at work", with FORTRAN...

Los Alamos Lab: High-Performance Computing: Roadrunner

Xenon in Xbox 360

The PPE was designed specifically for the Cell processor but during development, Microsoft approached IBM wanting a high performance processor core for its Xbox 360. IBM complied and made the tri-core Xenon processor, based on a slightly modified version of the PPE.[30][31]

Cell (microprocessor) - Wikipedia, the free encyclopedia

Opteron - Wikipedia, the free encyclopedia

 

[PhreePhly]

Hi all
just noting whilst MS is mulling over a 128 bit version of the OS, the current Linux kernel (2.7.X) supports 4PB RAM 4 Petabytes -- not that I've even SEEN a system with that much. I haven't even seen a PC with 1 TB of RAM yet. Most of us still wonder what to do with > 4GB RAM.

What exactly would you run on it apart from a Big Brother app watching over every inhabitant on the planet from cradle to grave. :devil:

Cheers
jimbo

Well, to be honest, any 64-bit OS can theoretically address 16 etabytes (1 etabyte = 1000 petabytes).

There is just no reason for Win 7 to address that. I believe the limit for Server 2008 R2 is 2 TB ram, but again, I don't think motherboards are available that can handle that.

As the need becomes apparent, I'm sure it will be quite simple for MS to add higher RAM limits as necessary.

PhreePhly

 

[chuckr]

Well, to be honest, any 64-bit OS can theoretically address 16 etabytes (1 etabyte = 1000 petabytes).

There is just no reason for Win 7 to address that. I believe the limit for Server 2008 R2 is 2 TB ram, but again, I don't think motherboards are available that can handle that.

As the need becomes apparent, I'm sure it will be quite simple for MS to add higher RAM limits as necessary.

What's an "etabyte" ?

Exabyte - Wikipedia, the free encyclopedia

PhreePhly
Always Learning

 

[PhreePhly]

Well, exabyte is not something I use often, and I didn't have the opportunity to look it up. I was just going off of memory on the theoretical RAM limit for 64-bit OS's. I knew it was greater than a petabyte, but I couldn't quite remember the prefix for the next 1000's unit above peta. Oh well, that's why I'm always learning.

PhreePhly