[Octave-bug-tracker] [bug #63412] Octave Optim not working with parallel package

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?63412>

                 Summary: Octave Optim not working with parallel package
                 Project: GNU Octave
               Submitter: None
               Submitted: Thu 24 Nov 2022 11:29:43 AM UTC
                Category: Octave Forge Package
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error or Warning
                  Status: None
             Assigned to: None
         Originator Name: Oliver
        Originator Email: savannah-gnu@oss-wald.de
             Open/Closed: Open
                 Release: 6.2.0
         Discussion Lock: Any
        Operating System: Microsoft Windows
           Fixed Release: None
         Planned Release: None


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Follow-up Comments:


-------------------------------------------------------
Date: Thu 24 Nov 2022 11:29:43 AM UTC By: Anonymous
Hello,

I installed the optim and the parallel package to perform a nonlin_curvefit
much faster. Even if for the example below, the parallel optimization is
defintely not needed, I wish to have it for my data and refeinement function.

Using 

options.parallel_local = false;

all works fine and the result is as expected.

For

options.parallel_local = true;

an error occurs:


>> could not save variable.
could not save variable.
could not save variable.
could not save variable.
could not save variable.
could not save variable.
errorerror: octave_base_value::load_binary(): wrong type argument 'cs-list'
>> : octave_base_value::save_binary(): wrong type argument 'cs-list'
error: octave_base_value::save_binary(): wrong type argument 'cs-list'
error: oeerror: octave_base_value::save_binary(): wrong type argument
'cs-list'
ctave_base_value::save_binary(): wrong type argument 'cs-list'rrorerror:
octave_base_value::save_binary(): wrong type argument 'cs-list'

: octave_base_value::save_binary(): wrong type argument 'cs-list'



Here is the full script:

#Theoretical values
a = 5;
b = 4;
c = 3;

#Start values for refinement
m = 1;
n = 1;
o = 1;

#Lower and upper bounds
lb = [0;  0;  0];
ub = [10; 10; 10];

#Noice Level
s = 0.0;

#Load optim package
pkg load optim;

#Load optim package
pkg load parallel;

x=-100:100;
for i = 1:length(x)
  yTemp = a*x(i)^3 + b*x(i)^2 + c*x(i);
  y(i) = s*randn(1)*yTemp+yTemp;
endfor

x = x;
y = y;

options.parallel_local = true;

fun = @ (p, x) p(1)*x.^3 + p(2)*x.^2 + p(3)*x;
paramn = [m; n; o];
[param, f, cvg, outp] = nonlin_curvefit(fun, paramn, x, y, options);

a      = a
b      = b
c      = c
aRes   = param(1)
bRes   = param(2)
cRes   = param(3)

for i = 1:length(x)
  yRes(i) = aRes*x(i)^3 + bRes*x(i)^2 + cRes*x(i);
endfor

plot(x, y, ".k;Data points;", "markersize", 10, x, yRes, "r;Result;",
"LineWidth", 3);







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File Attachments:


-------------------------------------------------------
Date: Thu 24 Nov 2022 11:29:43 AM UTC  Name: Parallel-Test.m  Size: 854B   By:
None

<http://savannah.gnu.org/bugs/download.php?file_id=54003>

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