Hello,
I am a bit confused as to how this all works with respect to number of
processors on a Linux machine. The situation I am encountering is this :
because of Hyperthreading technology, the OS thinks it has four
processors, but in reality, it has only two. I have updated the db2licm
to use two processors, but want to be certain I did the right thing.
Would it be possible to "pretend" that the machine does indeed have four
processors somehow? Would that then allow four Nodes and attendant
Nodegroups?
I know I'm prolly fishing for trouble, but I thought I'd see what
response I'd get !!
Thanks in advance
Mairhtin O'Feannag
2  2004 
I don't believe the db2licm command has anything to do with how many
processors db2 uses. It is merely there for licensing purposes. The
ability for processor affinity and how it is done depends on the os
platform. It (I believe) is normally done via the os.
Larry Edelstein
mairhtin o'feannag wrote: Hello,
I am a bit confused as to how this all works with respect to number of
processors on a Linux machine. The situation I am encountering is this :
because of Hyperthreading technology, the OS thinks it has four
processors, but in reality, it has only two. I have updated the db2licm
to use two processors, but want to be certain I did the right thing.
Would it be possible to "pretend" that the machine does indeed have four
processors somehow? Would that then allow four Nodes and attendant
Nodegroups?
I know I'm prolly fishing for trouble, but I thought I'd see what
response I'd get !!
Thanks in advance
Mairhtin O'Feannag
"Larry" <La***@nospam.n et> wrote in message
news:ri******** ************@ne ws4.srv.hcvlny. cv.net... I don't believe the db2licm command has anything to do with how many
processors db2 uses. It is merely there for licensing purposes.
======
Exactly.
And even for the licensing purposes, you only need to care the physical
processor numbers.
In fact, db2 process model is designed for multi-process/single thread on
Linux. You are not benefit from Hyperthreading technology.
The
ability for processor affinity and how it is done depends on the os
platform. It (I believe) is normally done via the os.
Larry Edelstein
mairhtin o'feannag wrote: Hello,
I am a bit confused as to how this all works with respect to number of
processors on a Linux machine. The situation I am encountering is this
: because of Hyperthreading technology, the OS thinks it has four
processors, but in reality, it has only two. I have updated the db2licm
to use two processors, but want to be certain I did the right thing.
Would it be possible to "pretend" that the machine does indeed have four
processors somehow? Would that then allow four Nodes and attendant
Nodegroups?
I know I'm prolly fishing for trouble, but I thought I'd see what
response I'd get !!
Thanks in advance
Mairhtin O'Feannag This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: muttu |
last post by:
hello everybody
am writing a scanner using python which has to get the information for
sun's dual processors, so could any one of you please tell me how to
find the number of processors . is there any api's for this , and also
lemme know how exactly i can write the scannerapi for this, so that it
can read the information of all the cpu's. I have the related CFG
file for that.
with regards
thanks in advance
|
by: AA |
last post by:
Do you know how can i get that?
Thanks a lot
|
by: PaulThomas |
last post by:
Using VS.Net 2000 and C#
How can I get the
CPU Serial Number and the
Operating Syatem Serial Number
Thanks in advance,
Paul
|
by: Jean-David Beyer |
last post by:
I have six hard drives (4 SCSI and 2 EIDE) on my main machine with parts
of a database on each drive. The main index is on one SCSI drive all to
itself. The main data are on the other three SCSI drives. Small relations
are on one EIDE drive, and the logfiles are on the other EIDE drive. When
running the task, below, the rest of the machine is not doing much.
I do not remember where I saw it, but somewhere I got the idea that the
number...
|
by: Cmorriskuerten |
last post by:
HI,
is this is this solution to test if a number is a prime number or not:
/*
* Is n a prime number?
* Return TRUE (1): n is a prime number
* Return FALSE (0): n is a *not* a prime number
*/
int is_prime_number(int n)
| | |
by: Dominic |
last post by:
I'd like to tune the performance of my application in a web garden.
Our server has dual processors. Is there any guideline to set this
"maximum number of worker processes" for web garden? In my
application, stress test shows that setting it to 2 gives a better
performance result. In other words, web garden helps. My first
question is if it helps to set a number larger than the number of
processors in the server. Are they related at all?
...
|
by: jmcgill |
last post by:
Hello.
Is there a method for computing the number of digits, in a given numeric
base, of N factorial, without actually computing the factorial?
For example, 8! has 5 digits in base 10; 10! has 7 digits in base 10.
Is there a way to compute that information without actually evaluating
the factorial?
|
by: Andrew Fabbro |
last post by:
I have a need to create an array that is larger than size_t - 1, which
I believe is the largest guaranteed array. I though I'd found
salvation in FAQ 6.14, but it appears I am not understanding
something.
The array is an array of pointers to structs. Here is an example
using a small array:
/* checks that malloc succeeded, main's return, etc. removed for
brevity */
|
by: John |
last post by:
Is there a way to find the number of processors on a machine (on linux/
windows/macos/cygwin) using python code (using the same code/cross
platform code)?
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
| | |
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
| | |
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
| |
