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Perl is installed on the operating system of each node and is currently at 5.16.3. perl --version
ElGatoPerl is installed on the operating system of each node and is currently at 5.16.3. perl --version
There are two versions of Perl available on Ocelote
[netid@compute_hostname ~]$ perl --version This is perl 5, version 16, subversion 3 (v5.16.3) built for x86_64-linux-thread-multi (with 44 registered patches, see perl -V for more detail) ...
Perl Module Policy
We will provide a version of perl through modules or the operating system and the user is expected to create their own perl environment using
Here is For a useful helpful Perl tutorial, see:
Additionally, O'Reilly Media is a well regarded source for Perl
Installing Perl Packages Using perl-virtualenv
One of the best things about Perl is the number of packages provided by the user community. Installing packages generally requires root access but that is not a viable solution in the HPC environment.
There is an An easy solution . You can is to use perl-virtualenv to create a consistent personal Perl environment that will persist for each time you log in. There is no risk of packages being updated under you for another user.
Here is an example session:
[netid@i0n1 ~]$ module list Currently Loaded Modulefiles: 1) pbspro/184.108.40.206173perl-virtualenv my_project. 2) gcc/5.2.0 [netid@login2 ~]$ module load perl [netid@login2 ~]$ perl-virtualenv my_project perl: /cm/shared/uaapps/perl/5.22.1/ # Create virtual environment perl path: /usr/bin/perl venv path: /home/u13uxx/netid/my_project [netid@login2netid@i0n1 ~]$ source my_project/bin/activate Attempting# toActivate create directory /home/u13/chrisreidy/my_project virtual environment (my_project)[netid@login2netid@i0n1 ~]$ cpanm -i Config::Trivial --> Working on Config::Trivial Fetching http://www.cpan.org/authors/id/A/AT/ATRICKETT/Config-Trivial-0.81.tar.gz ... OK Configuring Config-Trivial-0.81 ... OK ==> Found dependencies: Pod::Coverage, Test::Pod::Coverage, IO::Capture --> Working on Pod::Coverage Fetching http://www.cpan.org/authors/id/R/RC/RCLAMP/Pod-Coverage-0.23.tar.gz ... OK Configuring Pod-Coverage-0.23 ... OK Building and testing Pod-Coverage-0.23 ... OK Successfully installed Pod-Coverage-0.23 --> Working on Test::Pod::Coverage Fetching http://www.cpan.org/authors/id/N/NE/NEILB/Test-Pod-Coverage-1.10.tar.gz ... OK Configuring Test-Pod-Coverage-1.10 ... OK Building and testing Test-Pod-Coverage-1.10 ... OK Successfully installed Test-Pod-Coverage-1.10 --> Working on IO::Capture Fetching http://www.cpan.org/authors/id/R/RE/REYNOLDS/IO-Capture-0.05.tar.gz ... OK Configuring IO-Capture-0.04 ... OK Building and testing IO-Capture-0.05 ... OK Successfully installed IO-Capture-0.05 Building and testing Config-Trivial-0.81 ... OK Successfully installed Config-Trivial-0.81 4 distributions installed4 distributions installed (my_project)[netid@i0n1 ~]$