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Re: Faking X Display for IDL Bridge [message #72429 is a reply to message #72428]

Mon, 13 September 2010 07:39

jeffnettles4870
Messages: 111
Registered: October 2006

Senior Member

On Sep 13, 10:30 am, Haje Korth <hajeko...@gmail.com> wrote:
> Hi,
> I just had this great idea of forking IDL jobs on my 16-CPU server
> using the IDL to IDL Bridge. The code runs great from the command line
> but using a UNIX cron job I get the error message "IDL_IDLBridge:
> Unable to establish X Connection." To late did I understand the the
> help that reads:
>
> "Warning: On UNIX systems, the IDL_IDLBridge requires that the DISPLAY
> environment variable be set to a valid X Windows display. If no
> display is available, execution of the IDL_IDLBridge will halt, with
> error messages that include:IDL_IDLBridge: Unable to establish X
> Connection."
>
> The requirement for an X display seems silly, as my code does not
> display anything. Is there a way to fake the existence of an X window?
> Or did I just wasted my time coding this feature?
>
> Haje

I'm not a linux expert by any means, so forgive me if this is stupid,
but couldn't you just set the display env't variable anyway whether
you use it or not? It does seem silly that you have to set it whether
or not you use it, but is there any harm in just setting it?

On another note, how difficult was it to code up the IDL_IDLBridge
forking? I've thought about this myself but haven't really dived into
doing it other than a few (failed) half-hearted stabs.

Jeff

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[Message index]

		Re: Faking X Display for IDL Bridge By: Haje Korth on Tue, 14 September 2010 07:18
		Re: Faking X Display for IDL Bridge By: wita on Tue, 14 September 2010 00:35
		Re: Faking X Display for IDL Bridge By: Haje Korth on Mon, 13 September 2010 10:52
		Re: Faking X Display for IDL Bridge By: Foldy Lajos on Mon, 13 September 2010 08:29
		Re: Faking X Display for IDL Bridge By: Haje Korth on Mon, 13 September 2010 08:13
		Re: Faking X Display for IDL Bridge By: Haje Korth on Mon, 13 September 2010 08:06
		Re: Faking X Display for IDL Bridge By: Foldy Lajos on Mon, 13 September 2010 08:05
		Re: Faking X Display for IDL Bridge By: jeffnettles4870 on Mon, 13 September 2010 07:39

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