I know Windows / SQL etc can utilise multiple processors. In the good old
days of coding, you simply wrote the .EXE and Windows would run it on a
single processor (or a given processor for multi-processor machines)
I know also that threads exist, but am having a few problems understanding
how they are split across processors so here is an easy example.
I have a VB.Net written application that is processor intensive. It has not
been coded in any particular way to support multiple processors, or to
create multi threads.
When I run it on a dual processor machine (running 2003 server Ent Edition),
is the CLR able to spread the code execution across more than 1 processor?
Or does it just pick on a single processor and stick with it for the life of
the .Exe?
Any help most welcome. 2 2112
John,
the CLR cannot magically figure out which functions in your code can be
safely executed on seperate threads so everything will execute on the main
thread or at least give the impression that it is.
The runtime makes it fairly easy to create new threads using
System.Threadin g.Thread and the ThreadPool class and provides all the
necessary synchronistion primitives.
For a more "magical" way in which this might all work, you can take a look
at a research project call Polyphonic C# http://research.microsoft.com/~nick/polyphony/
which has explicit concurrency directives in the language.
Regards
Niroo TP [MSFT]
Regards
Niroo
"JohnFol" wrote: I know Windows / SQL etc can utilise multiple processors. In the good old days of coding, you simply wrote the .EXE and Windows would run it on a single processor (or a given processor for multi-processor machines)
I know also that threads exist, but am having a few problems understanding how they are split across processors so here is an easy example.
I have a VB.Net written application that is processor intensive. It has not been coded in any particular way to support multiple processors, or to create multi threads.
When I run it on a dual processor machine (running 2003 server Ent Edition), is the CLR able to spread the code execution across more than 1 processor? Or does it just pick on a single processor and stick with it for the life of the .Exe?
Any help most welcome.
Niroo, many thanks for the clarification.
"Niroo TP" <Ni*****@discus sions.microsoft .com> wrote in message
news:C2******** *************** ***********@mic rosoft.com... John, the CLR cannot magically figure out which functions in your code can be safely executed on seperate threads so everything will execute on the main thread or at least give the impression that it is.
The runtime makes it fairly easy to create new threads using System.Threadin g.Thread and the ThreadPool class and provides all the necessary synchronistion primitives.
For a more "magical" way in which this might all work, you can take a look at a research project call Polyphonic C# http://research.microsoft.com/~nick/polyphony/ which has explicit concurrency directives in the language.
Regards Niroo TP [MSFT]
Regards Niroo
"JohnFol" wrote:
I know Windows / SQL etc can utilise multiple processors. In the good old days of coding, you simply wrote the .EXE and Windows would run it on a single processor (or a given processor for multi-processor machines)
I know also that threads exist, but am having a few problems understanding how they are split across processors so here is an easy example.
I have a VB.Net written application that is processor intensive. It has not been coded in any particular way to support multiple processors, or to create multi threads.
When I run it on a dual processor machine (running 2003 server Ent Edition), is the CLR able to spread the code execution across more than 1 processor? Or does it just pick on a single processor and stick with it for the life of the .Exe?
Any help most welcome. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
by: Thomas Womack |
last post by:
If I have a dual-processor hyperthreaded machine (so with four CPU
contexts), will a python program distribute threads over all four
logical processors?
I ask because I'm fairly sure that this *does* happen using the
threading extensions in MFC, and fairly sure that it *doesn't* when
using Java, so I don't see that the result is obvious for python.
Tom
|
by: ajikoe |
last post by:
Hello,
Is anyone has experiance in running python code to run multi thread
parallel in multi processor. Is it possible ?
Can python manage which cpu shoud do every thread?
Sincerely Yours,
Pujo
|
by: Jon Skeet [C# MVP] |
last post by:
Please excuse the cross-post - I'm pretty sure I've had interest in the
article on all the groups this is posted to.
I've finally managed to finish my article on multi-threading - at least
for the moment. I'd be *very* grateful if people with any interest in
multi-threading would read it (even just bits of it - it's somewhat
long to go through the whole thing!) to check for accuracy,
effectiveness of examples, etc.
Feel free to mail...
|
by: Amit Dedhia |
last post by:
Hi
I am developing a Dot net application (involving image processing) on
a uni processor. It works well on my machine. I then take all my code
on a multi processor, build and run the application there. There is
performance degradation.
The usual performance of the application on MP machine is better than
that of uni processor machine. But the performance of MP degrades when
it comes to the multi-threaded part of the application. I am...
|
by: DMAC |
last post by:
Hi, Ive been told this, but I hope it is NOT true. I have an sql
server2000 installation running on a server that has four processors.
It is on a active network but is not the domain controller so
essentially it is fully dedicated to servicing the needs of sql
server, (a bit of browsing, a bit of ms Office, but almost wholly
dedicated to sqlserver. Now, the big question, why, when the server
properties have been set to utilize all four...
| |
by: Eugene |
last post by:
Hi All,
In multi processor computer, do we need to use specific design/coding method
to optimize our program to take advantage of the multi processor?
If I use a normal program, would it automatically achieve better (maybe
significantly) performance by adding more cpu(s). By using special techniques
(targeting multi processor sys), would the performance be increased further?
If yes, what is those techniques?
|
by: JohnFol |
last post by:
I know Windows / SQL etc can utilise multiple processors. In the good old
days of coding, you simply wrote the .EXE and Windows would run it on a
single processor (or a given processor for multi-processor machines)
I know also that threads exist, but am having a few problems understanding
how they are split across processors so here is an easy example.
I have a VB.Net written application that is processor intensive. It has not
been...
|
by: shumaker |
last post by:
I just read an overview of C# 3.0, and it occured to me that some of
these features could make it much easier to write programs that
automatically make use of multi core processors. After reading that
lambda functions are available in 3.0, I read up on the advantages of
functional programming, and one of the advantages is that tasks
performed in a functional language do not have side effects, and thus
tasks can be divided between...
|
by: Coaster |
last post by:
I am designing a process which will spawn a good number of threads and some
of them will execute a c++ process which is quite memory intensive (although
not multithreaded). This will run on a 2 cpu (both dual core) server. What
do I need to do if anything in order to spread the workload across the cpu's
/ cores in order to tune it properly?
I googled it and found this post but its somewhat dated and didn't know if
it applied to 2.0
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
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: 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: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
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: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
| |
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
| |