From Wikipedia's entry: A multi-core processor is a single computing component with two or more independent actual processors (called "cores"), which are the units that read and execute program instructions.1 The data in the instruction tells the processor what to do. The instructions are very ...
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Booting with more Cores
I was reading ways to enhance speed in Windows 7 and I read where you can enable Windows to boot off of 4 cores vs 1 to boot faster. Is there a reason why you do not want to use all 4 cores to boot?
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4answers
183 views
Multi-core CPU: can I say I have a 3x2.1GHz=6.3GHz CPU?
I have an AMD A6-3500 three-core CPU. AMD System Monitor shows each core with a maximum 2100 MHz. This also shows in AMD OverDrive.
Does this processor run at the speed 3*2100 MHz?
Edit
Can I say ...
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0answers
30 views
CPU cores all different temps [closed]
Possible Duplicate:
CPU Core Temperature Variation
Running i7 X980 and it has 6 cores to it. Idle is typically 32c-38c is that normally for the cores to have different temps like that? Is ...
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1answer
61 views
Single-threaded program takes too low CPU?
I am using Windows 7 Professional, Intel i7 CPU.
I know the i7 has Hyper-Threading and I assume this is the reason.
While running a single-threaded program, I saw that it only uses 12-13% CPU in Task ...
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0answers
39 views
Have anybody tested R multicore packages on 10-core Xeon how do they scale in comparison with case of 4 core machine?
Have anybody tested R multicore packages (for example : parallel, multicore, snowfall, foreach) on 10-core Xeon ? How do they scale in comparison with case of 4 core machine ? What algorith have you ...
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1answer
172 views
Ubuntu not balancing cpu usage among cores, making load go up
I am running 10 processes that each use 20-70% of a core of an i7-920 with 8 cores on Ubuntu 11.04. CPU scaling is turned off.
When I look at htop, I see that cores 4 and 8 are almost unused, while ...
2
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1answer
55 views
How are benchmarks for multiple cores calculated?
I found this site to compare CPU's. http://www.cpubenchmark.net/high_end_cpus.html
What wasn't clear is how the benchmark for multiple core processors is calculated. If one CPU has 4 cores (such as ...
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113 views
Dynamically disabling cores in a power-efficient way?
I am looking for a mechanism to dynamically disable cores in Linux in order to minimize power consumption.
Unfortunately, disabling cores using the following simple approach actually increases power, ...
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1answer
261 views
How can I tell my computer to use multiple cores for gaming? [closed]
Possible Duplicate:
Force a single core program to use multi core
Whenever I play games (specifically Minecraft) on my computer, only one of the cores is being used to run the game, which ...
0
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2answers
147 views
Finding the number of Cores on my CPU in GNU/Linux
When I do cat /proc/cpuinfo I get the folowing information printed below. Can I conclude from this information
that there are 8 cores in my machine? I am interested in doing some parallel programming ...
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0answers
64 views
shared L2 in multicore: regarding miss per kilo instruction (MPKI) counting
I am using multicore simulator marss http://marss86.org. I am using 4-core simulation, with shared L2 cache. Each core is run for say, 100M instructions. Since different cores progress at different ...
2
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1answer
292 views
Windows BSOD when all cpu cores enabled
I'm getting a blue screen "A clock interrupt was not received on a secondary processor within the allocated time interval", just a few seconds after the Windows desktop is loaded. (For reference, ...
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1answer
115 views
How can I configure Visual Studio 2008, so that it uses multiple cores for compile?
I use Visual Studio 2008 on a bigger project. If some files get compiled, it compiles them one after the other. My computer has 8 cores, except one they are idle. How can I configure Visual Studio, ...
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1answer
130 views
Why does top report more than the theoretical maximum CPU usage of a machine?
I would like to know why I have a process being able to report a usage line like:
PID COMMAND %CPU
248 Xcode 983.5
… in top on a quad core CPU?
I understand it's wrong, but how come? I'm ...
3
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2answers
160 views
How does a multi core computer freeze (at the hardware level)
I have a 4 core i7 computer that freezes. The display stays, but nothing will ever move again. This question is not about getting help on that particular problem, but a general question about how a ...
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0answers
239 views
Should I prefer processor speed (GHz) or core count? [closed]
I'm currently in the market for a new computer, so I'm curious about the recent trends of processor speed versus core count. Core count seems to be 'all the rage' these days, but things are really ...
2
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1answer
124 views
What are “multikernel computers”?
Which does the term 'modern multikernel computers' refer to? Distributed systems or multi-core computers?
I saw it in a one-line question, so no context to help! Google didn't help neither.
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1answer
231 views
Is Windows 7 better at utilizing multi-core processors than Windows xp?
Is Windows 7 better at utilizing multi-core processors than Windows xp? Better to have some explanation and proofs with the answer(yes or no).
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2answers
162 views
Does adding core to multicore CPU mean increasing the transistor count? [closed]
I'm studying Moore's law.
I'm curious why many people say Moore's law ends, so we switch to multicore CPU.
From all materials I can find, I understand this by such logic:
increasing clock rate -> ...
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1answer
171 views
What are “hyperthreading” and “virtual cores”?
I'm new in this computer terms. So anyone can explain to me what "virtual cores" and "hyperthreading" are at greatest detail a layman can understand?
People told me that virtual cores are imaginary ...
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2answers
88 views
Clock frequency, number of cores , threads
I'm really confused.
What determines the speed of the CPU/processor?
Some compared a dual core with 2.8ghz and a 2.4ghz quad-core and say the quadcore is better.
But when it comes to a dual core ...
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5answers
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Why is my dual-core CPU recognized as a quad-core one?
My processor is an Intel Core i3-380m. As you can see, it's 2 cores and 4 threads.
Although, both Ubuntu 11.04 and Windows 7 seem to think it's a quad-core CPU:
Why is this? Is it because there ...
6
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5answers
1k views
Is a higher core count or higher clock speed more beneficial to a computer's performance? [closed]
With lowering silicon costs and rising consumer needs, manufacturers seem to be pushing one of two things: clock speed and/or core count. With the way things are going, it doesn't seem that clock ...
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2answers
930 views
How to make commands in Mathematica 8 use all cores?
Many commands in Mathematica 8 (Integrate, Simplify, etc.) seem to only be using a single core on my system. Is there any way I can change the affinity so that it utilizes all cores for computations?
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1answer
49 views
Binding interface per core
I just wonder, is it possible (using Linux 2.6) to limit overhead done by ethernet interface to one specific core.
Ie. I have core2duo CPU, and two ethernet interfaces: eth0 and eth1.
Is it possible ...
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2answers
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/proc/cpuinfo gives CPU info per core or per thread?
My CPU has 2 cores, so I can see two parts in /proc/cpuinfo.
But, I want to know if CPUs that support Hyper-Threading (or similar tech), will /proc/cpuinfo give CPU info per core or per thread (or ...
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1answer
79 views
What's a dual core? [closed]
Possible Duplicate:
Can someone clear up the terms Core Duo CPU, Quad Core, Dual CPU, etc.?
Does "core" mean CPU or memory or both?
I'm thinking of buying a new computer. But ...
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3answers
941 views
How to limit a process to a single CPU core?
How do you limit a single process program run in a Windows environment to run only on a single CPU on a multi-core machine?
Is it the same between a windowed program and a command line program?
...
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0answers
84 views
Interpreting CPU BenchMark for Multi Core Systems
What is the standard ways (if any) to interpret the results of cpu benchmarking for multicore systems relative to single core systems? I am trying to compare the Passmark result of AMD 64 Vs AMD ...
1
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1answer
288 views
Does using a hexacore CPU make sense?
I'm currently planning to upgrade my computer system and I want to exchange CPU, board and RAM. I already had a look at some hexacore-CPUs from AMD and would like to know if it makes any sense to use ...
0
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2answers
144 views
Controlling multiple screens from Ubuntu 10.04 with many cores
I'm running x64 Ubuntu 10.04, desktop edition. I've got 2 big graphics cards that handle 2 HDMI ports each. I've got 6 cores on processor as well.
I want to be able to show a different movie on each ...
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2answers
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Force a single core program to use multi core
The title says it all, is there a way to force a single cpu core designed program (older programs) to use multiple cpu cores?
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3answers
208 views
Mixing CPUs in a multi-CPU system
Mixing types of RAM is not always healthy, but I am curious as to what happens (if anything) when mixing CPU types in a system.
Example:
8-Core 2.0Ghz Magny Cours CPU in socket 0
12-Core 2.0Ghz ...
6
votes
4answers
497 views
Would my virus scanner be able to scan multiple files concurrently with dual CPU instead of multi-core?
Anti-virus: Microsoft Security Essentials
OS : Windows 7 x64
Silly question perhaps, but somehow I was under the impression that multiple cores would mean the anti-virus scanner would be ...
2
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1answer
563 views
Is Firefox 4 multi-core optimized?
I've been reading about Multi-Core support in Firefox. There are outdated https://wiki.mozilla.org/Electrolysis#Status Wiki pages. Which states "Firefox should be Multi-Core aware in 2 years", which ...
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1answer
75 views
Oddity about declared multi-core CPU power?
I am having quite a hard time in understanding the output of cat /proc/cpuinfo on two 4-core Linux boxes here at work. Basically I am running algorithm experiments on the two machines (let's name them ...
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1answer
180 views
What exactly does the AMD Ontario C-50 APU have?
Does it come with two cores at 1 GHz plus a GPU, or is it just two cores and one of them is the GPU?
0
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1answer
87 views
Why do some software not get load balanced even when there are multiple cores?
While VTune Analyzer was running on a blade server with 8 cores, I observed the cpu useage percentage using mpstat -P ALL 1.
mpstat showed me that VTune was taking up 100% of a single core, while all ...
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5answers
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Can a multi-core processor run multiple processes at the same time?
I understand that a multi-core processor can run multiple threads of the same process at the same time using its different cores.
Can it also run multiple processes at the same time(each core running ...
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0answers
484 views
Core i7 vs Phenom II x6 [closed]
I have to made a setup for a PC that's going to be used to do heavy processing with ... Microsoft Excel ( -.-' )
Yep, I know how non-intelligent is make heavy processing with Excel, but I tried to ...
0
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2answers
1k views
Is there a simple UNIX command for finding out how many cores I have to work with?
I've got an Ubuntu VM on my Mac. Is there a command I can run in Ubuntu that will tell me how many cores I have to work with?
I could do "about this mac" on the host, but I'm not sure how well the ...
4
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1answer
993 views
Windows Virtual PC, multi-core possible?
I have a PC based on a "Intel i7 975". My OS is "Win7 Ultimate 64bit", and I have installed "Windows Virtual PC" + "XP Mode". My problem is that only ONE core is virtualized, so, can I virtualize two ...
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1answer
525 views
MacBookPro Core i7 - system profiler says “Number of cores: 2”
I thought that "quad core" meant quad core. My system says that it has 2 cores, but perhaps I'm thinking of it wrong, or perhaps the OS ignores 2 cores. What do you know about the issue.
(Note: Intel ...
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2answers
805 views
11
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2answers
8k views
How to tell how many CPUs (cores) you have on Windows 7
I got me a nice new laptop and I want to know a bit more about the hardware.
How can I see how many CPUs my computer has in Windows 7?
(Note: Clicking on Start->Right clicking on Computer-> ...
2
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3answers
476 views
Multi-core processor speed
Might be a basic question: is the clock rate (1.7 GHz, etc.) that is mentioned for multi-core processors (e.g., Intel i5, i7) the clock rate per core, or it is the total speed of all cores combined?
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Usefulness of multi-core in the context of power-efficient computing
I'm considering options for a new portable PC. I'd like to keep power utilization at a minimum, while being able to run batch jobs as quickly as possible. Batch jobs I can generally parallelize ...
2
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1answer
615 views
Processor advertised with 2 cores but PC shows 4 cores
I recently purchased an Intel i5-650 processor. On the Intel site, this the technical specifications show that the processor should only have two cores.
...
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3answers
278 views
When should I activate the “launch folder windows in a separate process” option?
In folder options -> view, there's an option that's off by default called "Launch folder windows in a separate process". I'm on windows-7, but I know this capability has existed since at least windows ...
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7answers
4k views
What is the difference between MultiCore and MultiProcessor? [closed]
Possible Duplicate:
What's the difference between multicore proc and multiproc system?
What is the difference between MultiCore and MultiProcessor please?
