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Java, SWIG, Memory leak?

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Philip Wattenbarger

Java, SWIG, Memory leak?

Firstly… great job thanks so much! The libraries are fantastic.

I pulled and built on Ubuntu the boost, quantlib and swig components.

I rebuilt boost and quantlib with sessions enabled and then built the swig java component.

I ran a unit test within java evaluating a simple European option and it appears to not be releasing the memory.

I even tried to call delete and set the java object to null to force the memory clean up.

Has anyone had this occur and or am I missing something obvious.

Thanks

Philip Wattenbarger
[hidden email]

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Luigi Ballabio

Re: Java, SWIG, Memory leak?

I'm not familiar with Java, but maybe you have to force garbage collection?

Luigi

On Mon, Mar 4, 2013 at 4:23 PM, Philip Wattenbarger
<[hidden email]> wrote:

> Firstly… great job thanks so much! The libraries are fantastic.
>
>
>
> I pulled and built on Ubuntu the boost, quantlib and swig components.
>
> I rebuilt boost and quantlib with sessions enabled and then built the swig
> java component.
>
>
>
> I ran a unit test within java evaluating a simple European option and it
> appears to not be releasing the memory.
>
> I even tried to call delete and set the java object to null to force the
> memory clean up.
>
>
>
> Has anyone had this occur and or am I missing something obvious.
>
>
>
> Thanks
>
>
>
> Philip Wattenbarger
> philip_wattenbarger_at_microsoft_warm_mail.com
>
> ------------------------------------------------------------------------------
> Everyone hates slow websites. So do we.
> Make your web apps faster with AppDynamics
> Download AppDynamics Lite for free today:
> http://p.sf.net/sfu/appdyn_d2d_feb
> _______________________________________________
> QuantLib-users mailing list
> [hidden email]
> https://lists.sourceforge.net/lists/listinfo/quantlib-users
>

Billy Ng-5

SWIG: FittedBondDiscountCurve::FittingMethod Conversion?

In reply to this post by Philip Wattenbarger

Hi,

Any example/clue in translating the Class FittedBondDiscountCurve::FittingMethod to java using SWIG (ql/termstructures/yield/fittedbonddiscountcurve.hpp)?

And thus, the subsequent Nonlinear Fitting Methods Derived Classes such as CubicBSplinesFitting (ql/termstructures/yield/nonlinearfittingmethods.hpp)?

My issue is that either staement in my i-File does not work

using QuantLib::FittedBondDiscountCurve::FittingMethod;

using QuantLib::FittingMethod;

Billy

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tackle endpoint security challenges, access the full report.
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Luigi Ballabio

Re: SWIG: FittedBondDiscountCurve::FittingMethod Conversion?

Billy,
using QuantLib::FittedBondDiscountCurve::FittingMethod;
seems correct. What do you mean by "doesn't work"? What error do you get?

Luigi

On Fri, Mar 8, 2013 at 9:05 AM, Billy Ng <[hidden email]> wrote:

> Hi,
>
> Any example/clue in translating the Class
> FittedBondDiscountCurve::FittingMethod to java using SWIG
> (ql/termstructures/yield/fittedbonddiscountcurve.hpp)?
> And thus, the subsequent Nonlinear Fitting Methods Derived Classes such as
> CubicBSplinesFitting (ql/termstructures/yield/nonlinearfittingmethods.hpp)?
>
> My issue is that either staement in my i-File does not work
> using QuantLib::FittedBondDiscountCurve::FittingMethod;
> using QuantLib::FittingMethod;
>
> Billy
>
> ------------------------------------------------------------------------------
> Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester
> Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the
> endpoint security space. For insight on selecting the right partner to
> tackle endpoint security challenges, access the full report.
> http://p.sf.net/sfu/symantec-dev2dev
> _______________________________________________
> QuantLib-users mailing list
> [hidden email]
> https://lists.sourceforge.net/lists/listinfo/quantlib-users
>

Billy Ng-5

Re: SWIG: FittedBondDiscountCurve::FittingMethod Conversion?

%{
using QuantLib::InterpolatedDiscountCurve;
using QuantLib::FittedBondDiscountCurve;
using QuantLib::BondHelper;
using QuantLib::FittedBondDiscountCurve::FittingMethod;
%}

The error is .\quantlib_wrapper.cpp(5282) : error C2885: 'QuantLib::FittedBondDiscountCurve::FittingMethod': not a valid using-declaration at non-class scope

I add both the FittedBondDiscountCurve and FittingMethod definitions in discountcurve.i, using
%define export_fitted_bond_discount_curve(Name,FittingMethod) to generate different fitting mothods

Billy

-----Original Message-----
From: Luigi Ballabio [mailto:[hidden email]]
Sent: Friday, March 08, 2013 4:22 PM
To: Billy Ng
Cc: QuantLib QuantLib; [hidden email]
Subject: Re: [Quantlib-users] SWIG: FittedBondDiscountCurve::FittingMethod Conversion?

Billy,
using QuantLib::FittedBondDiscountCurve::FittingMethod;
seems correct. What do you mean by "doesn't work"? What error do you get?

Luigi

On Fri, Mar 8, 2013 at 9:05 AM, Billy Ng <[hidden email]> wrote:

Luigi Ballabio

Re: SWIG: FittedBondDiscountCurve::FittingMethod Conversion?

Oh, I see. My bad. You can't use "using" for getting at an inner
class, it only strips away namespaces. You'll just have to use

using QuantLib::FittedBondDiscountCurve;

and then refer to FittingMethod in full as
FittedBondDiscountCurve::FittingMethod.

Otherwise, you can use a typedef instead of a using declaration, as in:

typedef QuantLib::FittedBondDiscountCurve::FittingMethod FittingMethod;

which will then let you use the short name.

Luigi

On Fri, Mar 8, 2013 at 9:35 AM, Billy Ng <[hidden email]> wrote:

> %{
> using QuantLib::InterpolatedDiscountCurve;
> using QuantLib::FittedBondDiscountCurve;
> using QuantLib::BondHelper;
> using QuantLib::FittedBondDiscountCurve::FittingMethod;
> %}
>
> The error is .\quantlib_wrapper.cpp(5282) : error C2885: 'QuantLib::FittedBondDiscountCurve::FittingMethod': not a valid using-declaration at non-class scope
>
> I add both the FittedBondDiscountCurve and FittingMethod definitions in discountcurve.i, using
> %define export_fitted_bond_discount_curve(Name,FittingMethod) to generate different fitting mothods
>
> Billy
>
> -----Original Message-----
> From: Luigi Ballabio [mailto:[hidden email]]
> Sent: Friday, March 08, 2013 4:22 PM
> To: Billy Ng
> Cc: QuantLib QuantLib; [hidden email]
> Subject: Re: [Quantlib-users] SWIG: FittedBondDiscountCurve::FittingMethod Conversion?
>
>
> Billy,
> using QuantLib::FittedBondDiscountCurve::FittingMethod;
> seems correct. What do you mean by "doesn't work"? What error do you get?
>
> Luigi
>
> On Fri, Mar 8, 2013 at 9:05 AM, Billy Ng <[hidden email]> wrote:
>> Hi,
>>
>> Any example/clue in translating the Class
>> FittedBondDiscountCurve::FittingMethod to java using SWIG
>> (ql/termstructures/yield/fittedbonddiscountcurve.hpp)?
>> And thus, the subsequent Nonlinear Fitting Methods Derived Classes such as
>> CubicBSplinesFitting (ql/termstructures/yield/nonlinearfittingmethods.hpp)?
>>
>> My issue is that either staement in my i-File does not work
>> using QuantLib::FittedBondDiscountCurve::FittingMethod;
>> using QuantLib::FittingMethod;
>>
>> Billy
>>
>> ------------------------------------------------------------------------------
>> Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester
>> Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the
>> endpoint security space. For insight on selecting the right partner to
>> tackle endpoint security challenges, access the full report.
>> http://p.sf.net/sfu/symantec-dev2dev
>> _______________________________________________
>> QuantLib-users mailing list
>> [hidden email]
>> https://lists.sourceforge.net/lists/listinfo/quantlib-users
>>