0
votes
1answer
84 views

Cores and threads? How does it all work exactly?

I am confused by this ... if a CPU has 2 logical cores, it can run two programs 100% concurrent, yes? Otherwise, 2 programs on one CPU must be 100% time-divided (can't run independently as the same ...
17
votes
3answers
3k views

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 ...
0
votes
1answer
61 views

Which is the biggest number of cores in a processor which is available on the market? [closed]

I know about single core,dual core and quad core processors,but I have no idea how many cores a processor could have at the moment.I mean,are there octa core,deca core or even better processors ...
0
votes
4answers
195 views

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
0
votes
1answer
2k views

what does 2 core 4 threads mean in cpu?

I wanted to know what does 2 cores 4 threads mean about a cpu? I am talking about this cpu which i have http://ark.intel.com/products/47341/Intel-Core-i5-520M-Processor-3M-Cache-2_40-GHz I initially ...
3
votes
1answer
144 views

What does 4 + 1 CPU cores mean?

For example, the Nvidia Tegra 4 is described as having 4 + 1 CPU cores. Is this simply a conventional way of saying that it has 5 cores, or does that phrasing imply something different? ...
0
votes
1answer
49 views

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 ...
1
vote
3answers
258 views

would a core failure on a multicore computer cause system instability?

Say for example, one of the cores in a quad core computer overheated and died, would the system compensate by routing all operations to the remaining 3 cores, or would the computer be inoperable? If ...
5
votes
2answers
531 views

Which logical CPU (core) belongs to which socket?

I need to test performance of a multithreaded program on 1 CPU, but I have a dual CPU machine. I need to set affinity to those logical CPU's, that share their socket, oterwise they strongly benefit ...
3
votes
2answers
401 views

CPUs: more transistors, less voltage?

I have read in an article that newer CPU cores have narrower circuit tracks so more transistors can fit in the core. The author wrote that since there are more transistors, the voltage is reduced. ...
2
votes
2answers
1k views

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.
4
votes
2answers
560 views

Using an Intel Core i5 processor on a Core 2 Duo motherboard

Is it possible to use an Intel Core i5 processor on a Core 2 Duo motherboard? Is the Core 2 Duo processor chip shape the same as the Core i5's?
0
votes
1answer
1k views

Comparing processors - high or low bus/core ratio?

Do I want a high bus/core ratio or a low one? This is taken from Intel's site: Bus/Core Ratio 20 22 27 26
10
votes
4answers
12k views

What is meant by the terms CPU, Core, Die and Package?

Now this might sound like too many previous questions, but I am really confused about these terms. I was trying to understand how "dual core" is different from "Core 2 Duo", and I came across some ...
4
votes
5answers
4k views

Is the cache size or number of cores more important when weighing CPU performance?

I'm shopping for a laptop for my son to use for school, so it doesn't need to be a gaming machine. I've put together PC's from scratch before, but it's been a while. I've noticed that a number of ...
1
vote
1answer
130 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 ...
3
votes
1answer
2k 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. ...
2
votes
2answers
3k views

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 ...
4
votes
4answers
6k views

Does “core” mean CPU or memory or both?

I was wondering what "core" means? CPU or memory or both?
3
votes
1answer
3k views

3d Studio Max and 2+CPUs - Core limit?

I am scouting for parts to put in a new machine, and in the process, while looking at different benchmarks I stumbled upon this benchmark and it got me a bit worried. Quote form it: Noticably ...
26
votes
6answers
19k views

How many cores I am using on a Linux Server?

I am just wondering how I can find out in bash how many CPU cores a user is now using on a Linux Server? I am submitting a fair amount of background jobs to the server, so I'd like to write a bash ...