?
Solved

Intel Xeon workstation

Posted on 2013-06-20
12
Medium Priority
?
353 Views
Last Modified: 2013-06-29
Dear all,

right now I am trying to buy a new workstation based on Xeon 2650 CPU, that Xeon has an architecture of supporting 2 x QPI link, do anyone know what use it is ?

I google that and it seems that this feature is talking about the data communication about CPU, RAM and RAID card/disk subsystem ?

please help to explain what use it is.
0
Comment
Question by:marrowyung
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 6
  • 5
12 Comments
 
LVL 32

Expert Comment

by:_
ID: 39264205
{quick and dirty explanation}

Basically QPI is the new FSB.
So instead of having only one "road" through the motherboard between the cpu(s) and chip set (like the old Front Side Bus) to carry the "traffic",  you have 2 "roads" for it to travel on.
The chipsset(s) talk to the drives and other stuff you can plug into the computer (eg: usb).

Ram doesn't come into it, as that's a different "road".

Hopefully someone else can give a better description of it to you.
0
 
LVL 1

Author Comment

by:marrowyung
ID: 39264810
"Basically QPI is the new FSB.
So instead of having only one "road" through the motherboard between the cpu(s) and chip set (like the old Front Side Bus) to carry the "traffic",  you have 2 "roads" for it to travel on.
The chipsset(s) talk to the drives and other stuff you can plug into the computer (eg: usb)."

yeah, I know QPI is 2 way, it is also bi-direction.

how about between CPU to CPU ?

it seems only buit inside the CPU but not about the motherboard, right?

so as long as the motherboard suppor this CPU, then QPI take effect ?
0
 
LVL 32

Accepted Solution

by:
_ earned 2000 total points
ID: 39264845
Not two-way (bi-directional). TWO roads. Both bi-directional.

Say 2 cpus with one QPI looks like this:

c \______________chipset
c/

Now 2 cpus with 2 QPI's:

c\/-----------------------|chipset  
c/\-----------------------|(that's suppose to be an X next to the cpu's)

so not only can the cpu's talk to each other, but share the link to the chipset, they can talk to each other and have their OWN link to the chipset. And if I understand it correctly, can use either link to do it.
The info I read described it as the whole thing is "networked together".
0
Free learning courses: Active Directory Deep Dive

Get a firm grasp on your IT environment when you learn Active Directory best practices with Veeam! Watch all, or choose any amount, of this three-part webinar series to improve your skills. From the basics to virtualization and backup, we got you covered.

 
LVL 1

Author Comment

by:marrowyung
ID: 39264908
so one CPU can't fully utilize 2 xQPI link ?
0
 
LVL 32

Expert Comment

by:_
ID: 39264920
I haven't tried it or seen any mention of that specifically, so I can't say for sure, but I wouldn't think so.
Though it might get a slight improvement over a single QPI.
Depends on the workload.
0
 
LVL 1

Author Comment

by:marrowyung
ID: 39276871
you are giving me the link of the same post.
0
 
LVL 1

Author Closing Comment

by:marrowyung
ID: 39276872
why can't see the option to add to the KB ?
0
 
LVL 32

Expert Comment

by:_
ID: 39276945
Thank you much.    : )
0
 
LVL 1

Author Comment

by:marrowyung
ID: 39276952
you are welcome as you helped me. keep watching my post and tell me something if you know the answer.

My new Workstation will be around 64GB of ECC RAM..
0
 
LVL 32

Expert Comment

by:_
ID: 39276974
I can do that.   ; )
0
 
LVL 1

Author Comment

by:marrowyung
ID: 39287745
I just ordered my new workstation based on E5-2650,...

64GB of RAM and it will run the adobe premium Pro CC and hopefully use 3D studio MAX.
0

Featured Post

Need protection from advanced malware attacks?

Look no further than WatchGuard's Total Security Suite, providing defense in depth against today's most headlining attacks like Petya 2.0 and WannaCry. Keep your organization out of the news with protection from known and unknown threats.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I use more than 1 computer in my office for various reasons. Multiple keyboards and mice take up more than just extra space, they make working a little more complicated. Using one mouse and keyboard for all of my computers makes life easier. This co…
This article shows how to use a free utility called 'Parkdale' to easily test the performance and benchmark any Hard Drive(s) installed in your computer. We also look at RAM Disks and their speed comparisons.
In this video we outline the Physical Segments view of NetCrunch network monitor. By following this brief how-to video, you will be able to learn how NetCrunch visualizes your network, how granular is the information collected, as well as where to f…
In this video, Percona Solution Engineer Dimitri Vanoverbeke discusses why you want to use at least three nodes in a database cluster. To discuss how Percona Consulting can help with your design and architecture needs for your database and infras…

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question