[Users] abort error - XY-scale

Thu Sep 6 23:54:46 CEST 2007

Dear Mr Huck,

Thank you for your answer, so, that's the reason why I received that error 
message, simply like that. I was wondering, because it's kind of difficult 
to find a suitable nVidia video card for my notebook in general and I need 
to work with several big seismic data sets, if you know (or someone else in 
the list) a desktop with optimal features for this type of jobs, i.e., there 
are lots and lots of good computers out there but may be people who have 
years and years of experience working with 2-
D and 3-D seismic data sets prefer ones especially, it would be great to 
know which computer could handle this kind of work and get it.

Besides, for OD stablilty (without crashing), which operating sytem would 
you recommend? windows or linux?

With Best Regards,

Gery.

P.S.: I found this surfing on internet, 
http://www.directron.com/aspectx1.html, would it work?

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From: Arnaud Huck <arnaud.huck at dgb-group.com>
To: Gery Herbozo Jimenez <gamejihou at hotmail.com>
CC: users at opendtect.org
Subject: Re: [Users] abort error - XY-scale
Date: Thu, 06 Sep 2007 10:27:19 +0200

Dear Gery,
Unfortunately it seems like you are trying to load 12000 traces within your 
512 Mo of memory, in addition to the operating system, which might already 
take half of this space. Therefore your notebook cannot allocate so much 
memory.

For instance, with a 4ms sampling rate, a 32bit precision (float), and a 6 
seconds trace length, loading your lineset requires 576 Mo per attribute! So 
you can understand quite easily that this is not doable on your notebook.

To overcome this, two solutions are possible (and combining them would be 
optimal):
- Increase the amount of memory on your system. This is one of the few 
upgrades that can be easily performed on a notebook by any user. We would 
recommend 2GB, especially when working with 2D data.
- Upgrade your graphic card to a generation that supports shading. When 
shading is enabled, the textures are allocated within the graphic card's 
memory, and not into the system memory. Nevertheless, graphic cards also 
have various amounts of memory, ranging from 128 to 1024Mo within a single 
generation of GPUs, so care must be taken with respect to this. We recommend 
nvidia graphic cards from generations 6, 7, or 8 (latest), with at least 
256Mo of dedicated memory (320 or 512 is better). Although AMD (previously 
called ATI) GPUs (X1xx and X2xx generations) support shading on the hardware 
side, they did not yet develop Linux drivers to use it.

Concerning the line spacing, there is no option to handle this. This is 
simply because the horizontal spacing is determined by the bin size (survey 
geometry in general), and the amount of zoom (in or out) you apply. The only 
solution to see two lines placed very close to each other at the same time 
would be to load them into two 2D viewers.

Best regards,
Arnaud Huck.

-- dGB Earth Sciences B.V.
-- Nijverheidstraat 11-2, 7511 JM Enschede, The Netherlands
-- mailto: arnaud.huck at dgb-group.com, http://www.dgb-group.com
-- Tel: +31 53 4315155 , Fax: +31 53 4315104

Gery Herbozo Jimenez wrote:
>
>Dear OD users,
>
>I have a problem with an unexpected error message during a 2D data set 
>visualization, I've uploaded 12 seismic lines into a lineset and when try 
>to visualize two of them (approximately, 10 thousand traces each one), it 
>appears in my shell terminal the following message:
>
>terminate called after throwing an instance of 'std::bad_alloc'
>  what():  St9bad_alloc
>Abort
>
>Someone knows if this is a bug or if it's related to the hardware features 
>where OD is running? may be something about OpenGL? I'm running OD under 
>OpenSuse 10.2 (32-bit Linux i586) installed in a notebook with ATI MOBILITY 
>RADEON 9700 video card, Intel(R) Pentium(R) 4 CPU 3.20GHz, 512 RAM. I use 
>OpenDtect V3.0.2d.
>
>Also, someone knows if there is an icon similar to the "Z-scale" but for 
>parallel seismic lines, i.e., how could adjust the space between two 
>seismic lines placed very closed?
>
>Any hint would be very grateful.
>
>With Best Regards,
>
>Gery.
>
>
><html><DIV>&nbsp;</DIV></html>
>
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