Questions tagged [parallel-processing]

Running multiple commands (or even computers) in parallel for more efficiency.

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Is it possible to combine processing power of 2 computers?

Here are a few questions, I wish you could enlighten me. Is it possible to combine processing power of 2 computers? How do I do it?
Wern Ancheta's user avatar
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16 votes
5 answers
31k 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 ...
Breakthrough's user avatar
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61 votes
12 answers
59k views

Can I run my CPU at 100% usage for a long time?

I have a Dell XPS 15 9570, 32 GB ram, 2.2 ghz and 6 cores. When i use an application (The parsim command on MATLAB) (for more details) then my fan starts running fast , during this my PC doesn't seem ...
aadil095's user avatar
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15 votes
4 answers
17k views

Kill process after it's been allowed to run for some time

I want to limit the time a grep process command is allowed to run or be alive. For example. I want to perform the following: grep -qsRw -m1 "parameter" /var But before running the grep command I ...
yael's user avatar
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29 votes
7 answers
56k views

What's the best way to perform a parallel copy on Unix?

I routinely have to copy the contents of a folder on a network file system to my local computer. There are many files (1000s) on the remote folder that are all relatively small but due to network ...
dsg's user avatar
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25 votes
7 answers
27k views

Running commands in parallel with a limit of simultaneous number of commands

Sequential: for i in {1..1000}; do do_something $i; done - too slow Parallel: for i in {1..1000}; do do_something $i& done - too much load How to run commands in parallel, but not more than, for ...
Vi.'s user avatar
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4 votes
1 answer
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How do the cores in an AMD Bulldozer module compare to Intel HTT virtual cores and two separate cores, in terms of multitasking performance?

This question is basically an extension of Hyper-Threading and Dual-Core, What's the Difference? The Bulldozer-based AMD FX processors are marketed as having four, six, or eight cores, but ...
bwDraco's user avatar
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3 votes
3 answers
2k views

How does a computer sleep/wait without using all of its processing power?

Something I've never quite understood is how a computer can operate without using all of its processing power. (Likely this confusion stems from a dreadful OS class in college.) As far as I know, a ...
dx_over_dt's user avatar
2 votes
2 answers
734 views

Create many tar files from a directory with 500000 files

I have a directory containing around 500k files, and want to slice them into t tar files. Put formally, let's call the files file_0, ..., file_{N-1}, where N around 500k. I want to create t tar files ...
fabian789's user avatar
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1 vote
1 answer
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GNU Parallel usage - how get currently passed string to parallel?

I am using GNU parallel and want to understand - how can I get the individual string passed to each parallel command? As an example, GNU Parallel documentation shows how to move files from the current ...
Invisible999's user avatar
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1 answer
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Is it possible to use GPU to boost performance of computer automatically? [duplicate]

As we all know GPU is a sleeping beast. And we are also familiar with Intel's Turbo Boost technology which is really great. But, Intel's Turbo Boost technology works only on CPU by overclocking CPU ...
Palash Karmore's user avatar