Difference between revisions of "Parallel"

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(Created page with "{{Entry |Name=Parallel |Short description=build and execute command lines from standard input in parallel |Full description=For each line of input parallel will execute command w...")
 
(parallel-20210622)
 
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{{Entry
 
{{Entry
|Name=Parallel
+
|Name=GNU Parallel
|Short description=build and execute command lines from standard input in parallel
+
|Short description=Build and execute command lines in parallel.
|Full description=For each line of input parallel will execute command with the line as arguments. If no command is given the line of input is executed. parallel can often be used as a substitute for xargs or cat {{!}} sh.
+
|Full description='''Parallel''' is a shell tool for executing jobs in parallel using one or more computers.
|User level=intermediate
+
 
|Submitted by=Database conversion
+
A job is can be a single command or a small script that has to be run for each of the lines in the input. The typical input is a list of files, a list of hosts, a list of users, a list of URLs, or a list of tables. A job can also be a command that reads from a pipe. GNU Parallel can then split the input and pipe it into commands in parallel.  If you use xargs and tee today you will find GNU Parallel very easy to use as GNU Parallel is written to have the same options as xargs. If you write loops in shell, you will find GNU Parallel may be able to replace most of the loops and make them run faster by running several jobs in parallel. GNU Parallel can even replace nested loops.
|Submitted date=2011-04-01
+
 
|Version identifier=20090904
+
GNU Parallel makes sure output from the commands is the same output as you would get had you run the commands sequentially. This makes it possible to use output from GNU Parallel as input for other programs.
|Version date=2009-09-04
+
 
|Version status=stable
+
For each line of input, GNU Parallel will execute command with the line as arguments. If no command is given, the line of input is executed. Several lines will be run in parallel. GNU Parallel can often be used as a substitute for xargs or cat{{Pipe}}bash.
|Version download=http://download.savannah.gnu.org/releases-noredirect/parallel/parallel-20090904.tar.bz2
+
 
|License verified date=2009-09-14
+
The GNU Parallel distribution also includes an 'sql' script which aims to give a simple, unified interface for accessing databases through all the different databases' command line clients, and a 'niceload' script to slow down or suspend a program if system activity is above a given threshold.
|Version comment=requirements: Perl
+
|Homepage URL=https://www.gnu.org/software/parallel/
 +
|Version download=https://ftpmirror.gnu.org/parallel/parallel-20210622.tar.bz2
 +
}}
 +
{{Project license
 +
|License=GPLv3orlater
 +
|License copyright=Copyright (C) 2007-2021 Ole Tange, http://ole.tange.dk and Free Software Foundation, Inc.
 +
|License verified by=Genium
 +
|License verified date=2020-12-23
 
}}
 
}}
 
{{Software category
 
{{Software category
 
|Interface=command-line
 
|Interface=command-line
 +
|Programming-language=perl
 +
|Runs-on=BSD, OS X, GNU/Linux
 +
|Use=system-administration
 +
}}
 +
{{EntryGNU
 +
|Is GNU=Yes
 +
|GNU package identifier=parallel
 +
}}
 +
{{Software prerequisite
 +
|Prerequisite kind=Required to use
 +
|Prerequisite description=[[Perl]] 5.8
 +
}}
 +
{{Person
 +
|Real name=Ole Tange
 +
|Role=Maintainer
 +
|Email=tange@gnu.org
 +
}}
 +
{{Resource
 +
|Resource audience=Savannah
 +
|Resource kind=Developer
 +
|Resource URL=https://savannah.gnu.org/projects/parallel/
 +
}}
 +
{{Resource
 +
|Resource audience=Savannah
 +
|Resource kind=Bug Tracking
 +
|Resource URL=https://savannah.gnu.org/bugs/?group=parallel
 +
}}
 +
{{Resource
 +
|Resource audience=Savannah
 +
|Resource kind=VCS Repository Webview
 +
|Resource URL=https://git.savannah.gnu.org/cgit/parallel.git/
 +
}}
 +
{{Resource
 +
|Resource audience=Bug-parallel Info Page
 +
|Resource kind=Mailing List
 +
|Resource URL=https://lists.gnu.org/mailman/listinfo/bug-parallel/
 +
}}
 +
{{Resource
 +
|Resource audience=Parallel Info Page
 +
|Resource kind=Mailing List
 +
|Resource URL=https://lists.gnu.org/mailman/listinfo/parallel/
 +
}}
 +
{{Resource
 +
|Resource audience=FTP
 +
|Resource kind=Mailing List
 +
|Resource URL=https://ftpmirror.gnu.org/parallel/
 +
}}
 +
{{Resource
 +
|Resource audience=FTP
 +
|Resource kind=Download
 +
|Resource URL=https://ftp.gnu.org/old-gnu/parallel/
 +
}}
 +
{{Resource
 +
|Resource audience=FTP
 +
|Resource kind=Download
 +
|Resource URL=https://alpha.gnu.org/gnu/parallel/
 +
}}
 +
{{Resource
 +
|Resource audience=FTP
 +
|Resource kind=Download
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|Resource URL=https://ftp.gnu.org/gnu/parallel/
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{{Resource
 +
|Resource audience=Wikidata
 +
|Resource kind=General
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|Resource URL=https://www.wikidata.org/wiki/Q3093314
 
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}}
{{Project license
+
{{Resource
|License=GPLv3orlater
+
|Resource audience=Debian
|License verified by=Kelly Hopkins
+
|Resource kind=Developer
|License verified date=2009-09-14
+
|Resource URL=https://tracker.debian.org/pkg/parallel
 +
}}
 +
{{EntryDetails
 +
|Is High Priority Project=No
 +
|Decommissioned or Obsolete=No
 +
|Accepts cryptocurrency donations=No
 +
|Test entry=No
 +
}}
 +
{{Featured
 +
|Featured date=2011-12-31
 +
|Featured source=The Free Software Supporter
 +
|Featured category=GNU Spotlight
 
}}
 
}}

Latest revision as of 23:21, 24 June 2021


[edit]

GNU Parallel

https://www.gnu.org/software/parallel/
Build and execute command lines in parallel.

Parallel is a shell tool for executing jobs in parallel using one or more computers.

A job is can be a single command or a small script that has to be run for each of the lines in the input. The typical input is a list of files, a list of hosts, a list of users, a list of URLs, or a list of tables. A job can also be a command that reads from a pipe. GNU Parallel can then split the input and pipe it into commands in parallel. If you use xargs and tee today you will find GNU Parallel very easy to use as GNU Parallel is written to have the same options as xargs. If you write loops in shell, you will find GNU Parallel may be able to replace most of the loops and make them run faster by running several jobs in parallel. GNU Parallel can even replace nested loops.

GNU Parallel makes sure output from the commands is the same output as you would get had you run the commands sequentially. This makes it possible to use output from GNU Parallel as input for other programs.

For each line of input, GNU Parallel will execute command with the line as arguments. If no command is given, the line of input is executed. Several lines will be run in parallel. GNU Parallel can often be used as a substitute for xargs or cat Pipe.pngbash.

The GNU Parallel distribution also includes an 'sql' script which aims to give a simple, unified interface for accessing databases through all the different databases' command line clients, and a 'niceload' script to slow down or suspend a program if system activity is above a given threshold.





Licensing

License

Verified by

Verified on

Notes

Verified by

Genium

Verified on

23 December 2020




Leaders and contributors

Contact(s)Role
Ole Tange Maintainer


Resources and communication

AudienceResource typeURI
SavannahDeveloperhttps://savannah.gnu.org/projects/parallel/
FTPDownloadhttps://ftp.gnu.org/gnu/parallel/
SavannahBug Trackinghttps://savannah.gnu.org/bugs/?group=parallel
SavannahVCS Repository Webviewhttps://git.savannah.gnu.org/cgit/parallel.git/
FTPDownloadhttps://alpha.gnu.org/gnu/parallel/
DebianDeveloperhttps://tracker.debian.org/pkg/parallel
FTPMailing Listhttps://ftpmirror.gnu.org/parallel/
WikidataGeneralhttps://www.wikidata.org/wiki/Q3093314
Parallel Info PageMailing Listhttps://lists.gnu.org/mailman/listinfo/parallel/
Bug-parallel Info PageMailing Listhttps://lists.gnu.org/mailman/listinfo/bug-parallel/
FTPDownloadhttps://ftp.gnu.org/old-gnu/parallel/


Software prerequisites

KindDescription
Required to usePerl 5.8




Entry













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"Savannah" is not in the list (General, Help, Bug Tracking, Support, Developer) of allowed values for the "Resource audience" property.


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"Debian" is not in the list (General, Help, Bug Tracking, Support, Developer) of allowed values for the "Resource audience" property.



Property "Submitted by" (as page type) with input value "{{{Submitted by}}}" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process. "{{{Submitted date}}}" contains an extrinsic dash or other characters that are invalid for a date interpretation.








Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

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