All Questions
Tagged with multi-core threads
15
questions
-2
votes
3
answers
457
views
Can this Intel processor multi-process 4 or 8 threads?
I am helping a friend who is trying to run multiple threads on a system with an Intel Core i3-3217U processor.
According to Intel's website, that processor has 2 cores which support 4 threads per core(...
- 8,477
0
votes
1
answer
79
views
Do multi-core processors have internal hardware for randomly changing in which core the instructions are executed?
A friend of mine says that a process always jumps between cores even if you pin a process to a specific core within operating system. He says that the processor manufacturers do this so that the ...
- 411
1
vote
1
answer
7k
views
How many threads can I run in my program?
I have a python program that uses the threading module and runs multithreads that executes a function. The number 8 below is the number of threads in the program but I need to know what is the number ...
- 1,237
2
votes
2
answers
6k
views
Is it possible to merge CPU cores?
Back in the past there was something called hyperthreading where a single CPU core acted like two cores.
But is it possible to merge two CPU cores to an single one to improve performance on programs ...
0
votes
2
answers
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?
- 672
1
vote
0
answers
131
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How to log/get a report on threading performance in Windows?
So with programs like Process Explorer and Process Hacker you can see what the individual threads from a given process are up to. However as far as I can tell its just an active monitor with no way to ...
- 111
0
votes
0
answers
424
views
How much do IDEs take advantage of multiple CPU cores?
So, how much do IDEs, for instance Android Studio or Eclipse, take advantage of multiple threads and CPU cores? That is, how much faster do they run on, say, a quad-core CPU compared with a dual-core ...
- 21
0
votes
0
answers
2k
views
setting affinity for multiple cores on dual cpu system
We are using some systems with 2cpu's with 6 cores/12 threads each so 24 threads in total, for quite a lot of multitread simulations. Because the problem doesnt scale perfectly, i usualy run 4 ...
- 121
0
votes
0
answers
47
views
Is parallelism in computer science always directly tied to the number of processor cores?
Specific to the Java programming language, would it be accurate to say that two threads can be concurrent, but can only truly be run in parallel if there are two or more cores?
user87216
0
votes
1
answer
545
views
Use all processor cores, 1 core/per 1 thread in *nix
According to xz documentation the "-T 4" means I should be using 4 threads, each compressing a different part of the file simultaneously.
Before using nice -19 I would only get %50 usage of 1 core, ...
- 1,269
2
votes
1
answer
1k
views
Is it faster to run one process that spawns N threads or to run N processes?
I need to run ~1500 jobs on my lab's server. The program I am using (blastpgp if anyone cares) is capable of running in parallel mode, the "-a" option sets how many threads it will launch. The server ...
- 53.7k
5
votes
2
answers
12k
views
Can a single process be executed in two or more processors in a multiprocessor system?
I have heard that one processor can work on only one process at a time. Is this true? If so, then how can a single process be executed in more than one processors at a time? Is this even possible?
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- 651
1
vote
2
answers
2k
views
Running threads on a non hyper-threading Intel processor
Intel Pentium Processor E5700 (2M Cache, 3.00 GHz, 800 MHz FSB) does not have hyper-threading but it has has 2 cores so I am assuming it has 2 threads
Now if I write a heavy number crunching program ...
- 59
2
votes
1
answer
2k
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 ...
- 145
10
votes
3
answers
17k
views
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 ...
- 349