Re: [SSI-users] How much CPU power & memory per node?

[pk <pe...@mi...>]

John Hughes wrote:

> Multi-threaded apps run all threads on the same node.  (This is because 
> sharing writable memory between nodes is pretty inefficient).  If you 
> write your app as "multi-process" rather than "multi-thread", 
> communicating using pipes, sockets or queues  instead of shared memory 
> then you can distribute your app across multiple nodes.

Sorry for "butting" in...

I'm just curious about what happened to the thread migration plans or
perhaps I remember that from another project? OpenMosix maybe? As I
understand it thread migration requires shared memory. Of course this
will introduce huge differences depending on the connection between
nodes but can't a NUMA model, perhaps with rDMA, handle such things?
Again, I'm just curious about the subject and don't know much about it...

Hope I'm making some sense...

Best regards

Peter K