A simplex optimizer for the rest of us (who may not know PDL).

Changes for 2.001 - 2024-04-20T22:02:43-07:00

• bugfix: add workers as a valid option
• add parallel worker test

A simplex optimizer for the rest of us (who may not know PDL).

Changes for 2.0 - 2024-04-20T21:33:12-07:00

• Add support for parallel Simplex and ParticleSwarm workers
• Catch SIGINT to provide the best values so far, and then return as if the simulation finished (without crashing).
• ParticleSwarm: Pre-seed "best" values if initialGuess is provided
• Simplex: move tolerance to simplex opts
• bugfix: Only clamp or round variables if the variables are enabled
• bugfix: Fix an undef dereference of best_minima

Sah schemas related to Comparer

Changes for 0.002 - 2024-03-07

• Rename module/dist Sah-Schema{s,Bundle}-Comparer.

Im working on a script to test using a jump server to reach remote devices.

I'm able to connect to the jump server using Net::SSH::Expect, however, I'm not sure how to then ssh to a remote device (network element).

Is there a way to create that ssh to the remote device inside the jump server's connection?

submitted by /u/jtzako
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First things first, I am a data engineer but have little experience in Perl. I've been able to make some easy updates to scripts in the past but this one is a bit tougher.

I have been asked to update a Perl cgi web app that someone wrote ages ago that is used to view and manipulate text files. Currently it is hosted on server (X) and manipulates the files on that same server. However, we have to have backups/mirrors of the data on a dev server and another prod sever (Y). I.e., if I push the button to move the file to a different folder, it should do that on all three servers instead of just X. I added code to do this, referencing the additional servers with their UNC names, but I just get an error "No such file or directory" (which is not true). Googling has suggested that there may be an issue with permissions, but I can bring up the Y and DEV servers from a windows file explorer using the same path so I don't think that is necessarily the issue.

Example: Here we are trying to copy the file with a letter appended a given number of times. It works fine on the X server, its when trying to make it also work on the Y and DEV servers I get an error.

our $DIR_X = "\\\\serverX\\folder\\subfolder" ; our $DIR_Y = "\\\\serverY\\folder\\subfolder"; our $DIR_DEV = "\\\\serverDEV\\folder\\subfolder"; . . . }elsif ($query->param('action') eq 'split' && $query->param('fileNum') ne "") { my $fileNum $query->param('fileNum'); my $fileX=$DIR_X . "\\" . $fileNum . ".txt"; my $fileY $DIR_Y . "\\" . $fileNum . ".txt"; my $fileDEV = $DIR_DEV . "\\" . $fileNum . ".txt"; my $splitNbr = $query->param('splitNbr'); my @letters1("a".. "z"); for (my $i = 0; $i < $splitNbr; $i++) { my $FileNew_X = $DIR_X . "\\" $fileNum. $letters[$i]=.txt"; my $FileNew_Y = $DIR_Y . "\\" $fileNum. $letters[$i]=.txt"; my $FileNew_DEV = $DIR_DEV . "\\" $fileNum. $letters[$i]=.txt"; copy($fileX, $FileNew_X) or die "WARNING: copy failed: $!\n"; ---->>>>>ERROR AT NEXT LINE copy($fileY, $FileNew_Y) or die "WARNING: copy failed: $!\n"; copy($fileDEV, $FileNew_DEV) or die "WARNING: copy failed: $!\n"; } 

submitted by /u/QueenScorp
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I stumbled upon this really nice page from Ruby, describing the language from the perspective of other common programming languages:

ruby-lang.org/en/documentation…

The page is written in a friendly tone, inviting programmers familiar with other programming languages to Ruby. No programming language is being viewed as inferior, quite the contrary: all mentioned languages are praised and even defended from haters, for example:

• "Perl is awesome. Perl’s docs are awesome. The Perl community is … awesome. For those Perlers who long for elegant OO features built-in from the beginning, Ruby may be for you."
• "Happily, it turns out that Ruby and C have a healthy symbiotic relationship. And, of course, Ruby itself is written in C."
• "Java is mature. It’s tested. And it’s fast (contrary to what the anti-Java crowd may still claim)."
• "Python is another very nice general purpose programming language."

I believe Perl could greatly benefit from having a similar page. With its friendly philosophy and TMTOWTDI, it seems natural to invite programmers from other languages, with an approach of "Don't be afraid to keep programming the way you are used to, if it works in Perl, there are no limits enforced".

Since Perl is now not a common choice for new code or for learning, it makes a lot of sense to bring over people from other languages. Especially in an age where strict conventions seem to be praised, I can see Perl becoming a source of some fresh air.

submitted by /u/Lenticularis39
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