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Questions tagged [multiprocessor]

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Only one of the two processor cores is recognized by Linux Mint on my laptop

My computer seems to have only one of the two processor cores operating. inxi CPU~Single core Intel Core2 Duo T6400 (-UP-) speed~2000 MHz (max) Kernel~4.4.0-53-generic x86_64 Up~2:40 Mem~1180.8/...
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1answer
39 views

How to get one core of a quad-ARM running without an OS

I'm using a quad-core ARM CPU and I'm wondering if it is possible to get 3 cores running in Linux, and one core running without Linux?
2
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0answers
90 views

determining number of free threads

Suppose that on a computer capable of processing n simultaneous threads, one wishes to launch n-m single-thread jobs where m is the number of threads currently in use. How is m defined and by what ...
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Why do we use dynamic memory in ccNUMA systems when we talk about data distribution into locality domains by first touch policy?

In many books, when they talk about first touch policy in ccNUMA systems they are using dynamic memory allocation when they distribute data across locality domains. What if, for example, we have an ...
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0answers
15 views

How RAM is distributed among processes in MPI?

For example for a 4GB RAM and 2 processes, each process will take 2 GB of memory?
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0answers
43 views

Process freezes when using plotting with multiprocessing in Python

I'm parallelizing a process by using the multiprocessing module. The function that is parallelized does plotting and using savefig module saves the plot in pdf format. However, when the code is run, ...
0
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1answer
39 views

Is opening new tab equivalent to opening new window?

Is opening new tab in the terminal window is equivalent to opening a new tab in terms of resources? I need to run 16 scripts in parallel. I do not know whether opening tabs or new terminals is the ...
0
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1answer
26 views

Is it possible that the kernel doesn't let a already ready thread run even when there is a idle processor?

Suppose each thread's affinity is all the processors. Whenever a thread becomes ready, will the kernel attempt to find an idle processor to run it?
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93 views

Fast file access for many threads doing read / write operations?

I have a disk with a lot of data on it and I want to write some code such that thousands of threads can operate on the data. Each thread would work on its own individual file. This will speed up ...