Virtual P4?

[tkopp]

I was listening to 710 KIRO here in Seattle, and heard a quick newsbit. They said that Intel announced a new hardware revision of the P4 that could fool an operating system into thinking it was really two CPUs and thus could run 'twice as fast.' Now, I haven't seen anything else about this from hardware web sites. I can't imagine how this would work, either. Anyone else know anything about this?

 

[mat]

its calles HyperThreading (or something like this)

its currently only available on Xeons (=P4 Server chips) and the benchmarks i've seen showed that its useless if the apps are not designed for more than 1 cpu

BTW: it should be enabled in desktop CPUs in 2003

 

[bystander]

Are you talking about hyperthreading?

<font size=-1>[ This Message was edited by: bystander on 2002-02-28 18:43 ]</font>

 

[multigl]

SMT symmetric multi threading; its designed to fill the entire pipeline with something to do at all times.

 

[pcchen]

Where the "symmetric" comes from? Because it is "symmertric" in SMP? :smile:

It is "Simultaneous" Multithread. All papers related to this topic I've seen use the term "simultaneous". I've never seen "symmertric" multithread except on a hardware web site.


<font size=-1>[ This Message was edited by: pcchen on 2002-03-01 01:27 ]</font>