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IDL 8.2 IDL_IDLBridge & abortion [message #88793]

Thu, 19 June 2014 15:37

Garsmat72
Messages: 3
Registered: June 2014

Junior Member

Hello folks,

I'm programming with IDL 8.2 and I have an issue with IDL_IDLBridge.
I use some IDL bridges to compute on large pictures.
In the code used by those bridges, the program executes a large loop. At some point in this loop, all the children stop with the abort command (status = 4). There aren't any type problem, I tested the function in the main IDL process but it doesn't create any problem.

Does anyone have an idea what's happening in the children processes?

Cheers,

Mathieu

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Re: IDL 8.2 IDL_IDLBridge & abortion [message #88796 is a reply to message #88793]

Fri, 20 June 2014 10:32

Bill Nel
Messages: 31
Registered: October 2010

Member

Have you turned on logging (using Obj_New("IDL_IDLBridge", output=logfilename)?

The child process might print an error message there. And you can write debugging output, as well.

On Thursday, June 19, 2014 6:37:05 PM UTC-4, Garsmat72 wrote:
> Hello folks,
>
>
>
> I'm programming with IDL 8.2 and I have an issue with IDL_IDLBridge.
>
> I use some IDL bridges to compute on large pictures.
>
> In the code used by those bridges, the program executes a large loop. At some point in this loop, all the children stop with the abort command (status = 4). There aren't any type problem, I tested the function in the main IDL process but it doesn't create any problem.
>
>
>
> Does anyone have an idea what's happening in the children processes?
>
>
>
> Cheers,
>
>
>
> Mathieu

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Re: IDL 8.2 IDL_IDLBridge & abortion [message #88822 is a reply to message #88793]

Tue, 24 June 2014 03:37

Garsmat72
Messages: 3
Registered: June 2014

Junior Member

Hello Rigby,

thanks for your help, the log wasn't helpful at all...
In fact, if you create IDL_IDLBridge object in a function/procedure, executes some computations in asynchronous mode ( /NOWAIT) and ends the function, the garbage collector will destroy the IDL_IDLBridges; which will cause the abortion of the computations in the newly created processes.

Cheers,

Mathieu

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Re: IDL 8.2 IDL_IDLBridge & abortion [message #88823 is a reply to message #88793]

Tue, 24 June 2014 03:38

Garsmat72
Messages: 3
Registered: June 2014

Junior Member

Hi all,

I solved this issue.
As soon as the main IDL process leaves the function/procedure where the bridges were created, they are destroyed, which causes an abortion in the bridges. One of the possible solutions is to save the IDL_IDLBridge objects in a system variable before the main IDL process leaves the function.

Mathieu

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