All Questions
Tagged with multi-core core
14
questions
-1
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1
answer
625
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Why does adding CPU cores make programs run faster?
Intel currently offers a 5.5GHz CPU, which represents the number of instructions the CPU can execute over time.
If a CPU has more than one core, it can execute more than one process at a time.
However,...
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1
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How is hyper threading more efficient? [duplicate]
I read a lot about Hyper threading and how it works. One thing I still can't 'digest' is how is it more efficient than not using hyper threading at all?
Hyper-Threading is where two threads are able ...
0
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0
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474
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How does cores/logical cores handle the threads [duplicate]
I have this whining question on my head, which stuck me for days.
Correct me if I'm wrong: My aspect on computer architecture and organisation is that,
In early day computers, there was a single ...
2
votes
1
answer
230
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Is there a significant issue to allocating all available cores to one VM if that is the only major task running?
I have a one-off task that requires me to use a VM to fix a build bug a software project using SCons (Python). The testing cycle is fairly short, resulting in frequent rebuilds. I'm using a 4-core ...
- 306
0
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2
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4k
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Threads (versus cores) and rated CPU clock speed, what is the effect?
If my CPU is rated at 2GHz, and has 4 cores supporting 8 threads, are all 8 threads running at the rated clock speed? Or are they running at 1GHz each since there are twice as many threads as cores?
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17
votes
3
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Why is my laptop both dual core and quad core at the same time [duplicate]
I bought an Alienwaremx14 with the following specifications , it is clearly stated here that my CPU is dual core
However when i open Window task manager , I was shocked to find out I had four CPU ...
- 1,007
5
votes
4
answers
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Why are the number of cores in a processor normally even
Whenever i look at specifications of the processor , the number of cores is always 2 , 4 ,8 .
Is there any reasons why the number of cores are always even and not odd like 3 , 5 , 7
- 1,007
0
votes
1
answer
297
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Choosing which core to use when running a program
I work on a Fedora server running on an Intel Xeon with 15 cores. Some users are running simulations that take up four of the cores, but others seem to be unused. Is there a way I can have a program ...
- 162
2
votes
2
answers
8k
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How do you get more cores?
Are you able to gain cores? I bought The Elder Scrolls V: Skyrim without looking at the specs. I need at least a dual core processor but I only have a single core processor.
- 21
1
vote
1
answer
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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 ...
- 143
14
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4
answers
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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 ...
- 7,391
5
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1
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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.
http://www.intel.com/products/processor/corei5/...
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2
votes
2
answers
4k
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Multiple CPU cores in Virtual Box
When I was using Virtual Box in Windows 7, I could choose how many CPU cores to assign to the guest OS. Now I'm using Linux, and when I installed Virtual Box, I couldn't find that option. System ...
- 14.5k
2
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3
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Triple core: a black sheep?
Is there any architectural disadvantage in a triple core processor compared to a dual or quad core? For example, does a triple core imply some architectural dissymetry that impacts performance?
P.S. ...
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