[Users] abort error - XY-scale

Thu Sep 6 10:27:19 CEST 2007

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.
>
>
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