[OT] Exists? kernel/library simulating cluster/multi-processor machine

[OT] Exists? kernel/library simulating cluster/multi-processor machine

[Prakash K. Cheemplavam]

Hi,

for my diploma I am currently working on a library called "load 
balancing class" originally developed by Frank Meisgen. As the name 
suggests its duty is to balance the load on a heterogenous cluster. The 
original library was written for sun sparc machines and I am proting it 
and enhancing it. Though I have started doing it for Windows2000, it 
also runs on Linux (which is the goal, but as Windows seems to make more 
troubles, I develop it there). A age simulation /population simulation 
already works and now I am busy debugging a fast sat solver (originally 
written by Max Böhm for his "plb" and converted to lbc by Frank Meisgen).

My question is, where there existes some sort of modified kernel or 
library (perhaps a modified mpi libraray, as lbc uses mpi to 
communicate) which simulates a cluster or multi-processor machines on a 
single cpu machine (or a "bigger" cluster on a cluster). Why? Of course 
it won't do anything good performance wise, But I want to see how well 
the lbc works and getting access to big clusters isn't easy esp if you 
want to tweak. Starting more than one process on one machine won't help, 
as the processes with natrurally balance each other.

Thanks,

Prakash

Re: [OT] Exists? kernel/library simulating cluster/multi-processor machine

[Wes Felter]

On Mon, 15 Dec 2003 22:04:47 +0100, Prakash K. Cheemplavam wrote:

> My question is, where there existes some sort of modified kernel or 
> library (perhaps a modified mpi libraray, as lbc uses mpi to 
> communicate) which simulates a cluster or multi-processor machines on a 
> single cpu machine (or a "bigger" cluster on a cluster). Why? Of course 
> it won't do anything good performance wise, But I want to see how well 
> the lbc works and getting access to big clusters isn't easy esp if you 
> want to tweak. Starting more than one process on one machine won't help, 
> as the processes with natrurally balance each other.

Try User Mode Linux or Xen.

http://user-mode-linux.sourceforge.net/
http://www.cl.cam.ac.uk/Research/SRG/netos/xen/

-- 
Wes Felter - wesley@felter.org - http://felter.org/wesley/