Hello I'm running SLSQP algorithm from Scipy on Ubuntu 12.04 and Python 3.3. The algorithm doesn't converge unless the starting point is really close to the solution. I tried it on Windows and it works perfectly, it converges easily and doesn't take too much iterations. On Ubuntu I either get the message "Inequality constraints incompatible", and sometimes I even get the message "Optimization terminated succesfully", but the values are not correct. Has anyone experienced the same thing? I have no clue to what's going on. Also I tried it with Python 2.7 on Ubuntu and still doesn't work, but on Windows it does. Thank you very much, I'm desperate. GSJ
On Mon, Jul 6, 2015 at 4:35 PM, Giselle Sosa Jones <giselle1701@gmail.com> wrote:
Hello
I'm running SLSQP algorithm from Scipy on Ubuntu 12.04 and Python 3.3. The algorithm doesn't converge unless the starting point is really close to the solution. I tried it on Windows and it works perfectly, it converges easily and doesn't take too much iterations. On Ubuntu I either get the message "Inequality constraints incompatible", and sometimes I even get the message "Optimization terminated succesfully", but the values are not correct. Has anyone experienced the same thing? I have no clue to what's going on. Also I tried it with Python 2.7 on Ubuntu and still doesn't work, but on Windows it does.
Thank you very much, I'm desperate.
That is strange. Is the problem small enough that you can post it somewhere so we can try it out? Also, where did you get your windows scipy? There may be compiler/library differences. I assume 64 bit versions on both? Chuck
It has a lot of code and functions, so it would be hard to post it. But in terms of amount of variables it's small (16 variables and 16 constraints). I got the Windows version from this website called Unofficial Windows Binaries for Python, and indeed I believe it's a compilation problem. Actually it's 32 bits, but it works fine on Windows, even with bigger problems. GSJ 2015-07-06 16:15 GMT-04:30 Charles R Harris <charlesr.harris@gmail.com>:
On Mon, Jul 6, 2015 at 4:35 PM, Giselle Sosa Jones <giselle1701@gmail.com> wrote:
Hello
I'm running SLSQP algorithm from Scipy on Ubuntu 12.04 and Python 3.3. The algorithm doesn't converge unless the starting point is really close to the solution. I tried it on Windows and it works perfectly, it converges easily and doesn't take too much iterations. On Ubuntu I either get the message "Inequality constraints incompatible", and sometimes I even get the message "Optimization terminated succesfully", but the values are not correct. Has anyone experienced the same thing? I have no clue to what's going on. Also I tried it with Python 2.7 on Ubuntu and still doesn't work, but on Windows it does.
Thank you very much, I'm desperate.
That is strange. Is the problem small enough that you can post it somewhere so we can try it out? Also, where did you get your windows scipy? There may be compiler/library differences. I assume 64 bit versions on both?
Chuck
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-- Lic. Giselle Sosa Jones Departamento de Cómputo Científico y Estadística Universidad Simón Bolívar Caracas, Venezuela +58-212-9063398
Which versions of Scipy are you using (scipy.__version__)? The default version on Ubuntu 12.04 is probably fairly old and you might be better of with a newer one. Jens. man. 6. jul. 2015 kl. 15.49 skrev Giselle Sosa Jones <giselle1701@gmail.com
:
It has a lot of code and functions, so it would be hard to post it. But in terms of amount of variables it's small (16 variables and 16 constraints). I got the Windows version from this website called Unofficial Windows Binaries for Python, and indeed I believe it's a compilation problem. Actually it's 32 bits, but it works fine on Windows, even with bigger problems.
GSJ
2015-07-06 16:15 GMT-04:30 Charles R Harris <charlesr.harris@gmail.com>:
On Mon, Jul 6, 2015 at 4:35 PM, Giselle Sosa Jones <giselle1701@gmail.com
wrote:
Hello
I'm running SLSQP algorithm from Scipy on Ubuntu 12.04 and Python 3.3. The algorithm doesn't converge unless the starting point is really close to the solution. I tried it on Windows and it works perfectly, it converges easily and doesn't take too much iterations. On Ubuntu I either get the message "Inequality constraints incompatible", and sometimes I even get the message "Optimization terminated succesfully", but the values are not correct. Has anyone experienced the same thing? I have no clue to what's going on. Also I tried it with Python 2.7 on Ubuntu and still doesn't work, but on Windows it does.
Thank you very much, I'm desperate.
That is strange. Is the problem small enough that you can post it somewhere so we can try it out? Also, where did you get your windows scipy? There may be compiler/library differences. I assume 64 bit versions on both?
Chuck
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-- Lic. Giselle Sosa Jones Departamento de Cómputo Científico y Estadística Universidad Simón Bolívar Caracas, Venezuela +58-212-9063398 _______________________________________________ SciPy-Dev mailing list SciPy-Dev@scipy.org http://mail.scipy.org/mailman/listinfo/scipy-dev
No, I actually have 0.15 which is the newest one (except for 0.16 which is still beta). Also Numpy is 1.9 which is the newest one too. 2015-07-06 16:40 GMT-04:30 Jens Nielsen <jenshnielsen@gmail.com>:
Which versions of Scipy are you using (scipy.__version__)? The default version on Ubuntu 12.04 is probably fairly old and you might be better of with a newer one.
Jens.
man. 6. jul. 2015 kl. 15.49 skrev Giselle Sosa Jones < giselle1701@gmail.com>:
It has a lot of code and functions, so it would be hard to post it. But in terms of amount of variables it's small (16 variables and 16 constraints). I got the Windows version from this website called Unofficial Windows Binaries for Python, and indeed I believe it's a compilation problem. Actually it's 32 bits, but it works fine on Windows, even with bigger problems.
GSJ
2015-07-06 16:15 GMT-04:30 Charles R Harris <charlesr.harris@gmail.com>:
On Mon, Jul 6, 2015 at 4:35 PM, Giselle Sosa Jones < giselle1701@gmail.com> wrote:
Hello
I'm running SLSQP algorithm from Scipy on Ubuntu 12.04 and Python 3.3. The algorithm doesn't converge unless the starting point is really close to the solution. I tried it on Windows and it works perfectly, it converges easily and doesn't take too much iterations. On Ubuntu I either get the message "Inequality constraints incompatible", and sometimes I even get the message "Optimization terminated succesfully", but the values are not correct. Has anyone experienced the same thing? I have no clue to what's going on. Also I tried it with Python 2.7 on Ubuntu and still doesn't work, but on Windows it does.
Thank you very much, I'm desperate.
That is strange. Is the problem small enough that you can post it somewhere so we can try it out? Also, where did you get your windows scipy? There may be compiler/library differences. I assume 64 bit versions on both?
Chuck
_______________________________________________ SciPy-Dev mailing list SciPy-Dev@scipy.org http://mail.scipy.org/mailman/listinfo/scipy-dev
-- Lic. Giselle Sosa Jones Departamento de Cómputo Científico y Estadística Universidad Simón Bolívar Caracas, Venezuela +58-212-9063398 _______________________________________________ SciPy-Dev mailing list SciPy-Dev@scipy.org http://mail.scipy.org/mailman/listinfo/scipy-dev
_______________________________________________ SciPy-Dev mailing list SciPy-Dev@scipy.org http://mail.scipy.org/mailman/listinfo/scipy-dev
-- Lic. Giselle Sosa Jones Departamento de Cómputo Científico y Estadística Universidad Simón Bolívar Caracas, Venezuela +58-212-9063398
participants (3)
-
Charles R Harris -
Giselle Sosa Jones -
Jens Nielsen