Re: package parallel reads init file despite --no-init-file

On 5/12/21 2:44 PM, Jens Wulf via Help-octave wrote:> Hi,
 >
 > when starting Octave using  --no-init-file (for example
 > “octave-6.2.0.bat --no-gui --no-init-file”) and then using the parallel
 > package, the parallel processes do read the init file.
 >
 > Is there a way to prevent this? Should I file a bug?
 >
 > Win10, octave 6.2.0, parallel 4.0.1
 >
 > Best regards,
 >
 > Jens
 >

To my understanding of the parallel package, Octave arguments (argv) are 
not regarded and it seems reasonable to file a bug report.

Please read https://octave.sourceforge.io/support-help.php
Then https://savannah.gnu.org/bugs/?group=octave&func=additem


Some thoughts of mine.

Please link this thread in your bug report
https://lists.gnu.org/archive/html/help-octave/2021-05/msg00029.html

To fix this, the content of "argv" 
https://octave.org/doc/v6.2.0/XREFargv.html should be regarded by the 
parallel package when creating the "Octave-sub-processes" as you describe.

The Octave binary to be called:

https://sourceforge.net/p/octave/parallel/ci/default/tree/src/p-control.h#l196

is set here:

https://sourceforge.net/p/octave/parallel/ci/default/tree/src/p-control.cc#l392


A new "instance" is constructed only given the binary:

https://sourceforge.net/p/octave/parallel/ci/default/tree/src/p-control.cc#l309

and appended with an "--eval" statement to be evaluated within this 
instance:

https://sourceforge.net/p/octave/parallel/ci/default/tree/src/p-control.cc#l67

HTH,
Kai