HI Ed,
here's some feedback to the new release. Thank you for your tireless
efforts!
I experience errors in previously working code, at least in 2.074 and 2.075.
$r and $i are piddles, as are $empty_lines and $vlines. These lines (67
#!perl
use PDL;
use PDL::NiceSlice;
use 5.10.0;
use strict;
sub foo {
my $r=shift; #piddle
my $i=shift; #piddle
my $empty_lines=(whichND ($r(0,,0,0,0,0,0,0;-)==0));
unless ($empty_lines->isempty) {
$empty_lines=$empty_lines(0,;-) if $empty_lines->nelem;
my $vlines=$$p{y}-1-$empty_lines;
$r(,$empty_lines,).=$r(,$vlines,); # syntax error
$i(,$empty_lines,).=-$i(,$vlines,); # syntax error
}
}
syntax error at /home/ingo/perl/test_errors.pl line 17, near "$r("
syntax error at /home/ingo/perl/test_errors.pl line 18, near "$i("
Could that be a PDL::NiceSlice issue?
Also, max (and probably min) are piddles now, (tested in 2.074), which
breaks some code. They used to returen perl scalars.
On 2/19/22 10:22, Ed . wrote:
Dear PDL folks,
PDL 2.075 has just been released. Notable changes since 2.064:
* threading now called broadcasting (compat aliases created)
* fix when readdata functions return error (#356)
* RedoDimsCode can now use $SIZE(other_index) (#386)
* can now unify Code and BadCode into Code, and use PDL_IF_BAD() or
#ifdef PDL_BAD_CODE
* add macros PDL_IF_GENTYPE_{REAL,INTEGER,UNSIGNED}(iftrue,iffalse)
in Code
* fixes to PDL::NiceSlice including performance bug by
monkey-patching Text::Balanced::extract_multiple
* Minuit and Slatec 64-bit safe
* bifuncs like Ops::plus no longer need explicit swap parameter
Future plans, in something like intended order:
* fix more open GitHub issues
* make PDL::LinearAlgebra work right with “native complex” (several
of the above issues were related to enabling this)
* “loop fusion” techniques to maximise locality of computation,
minimising data’s trips through the “straw” between CPU and main RAM
* finish the independent C interface for making PDL usable from e.g.
Python
* use OpenCL or other means to also utilise GPUs if available
The IRC channel (#pdl on irc.perl.org) is a great virtual place to
come and ask questions, or just watch the GitHub messages flow by.
As usual, please give the new PDL a try and report problems.
Best regards,
Ed
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