comp.lang.idl-pvwave archive: archive » Re: writing large 3D data file fails

Home » Public Forums » archive » Re: writing large 3D data file fails

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: writing large 3D data file fails [message #68247 is a reply to message #68245]

Thu, 08 October 2009 01:32

Nigel Wade
Messages: 286
Registered: March 1998

Senior Member

On Thu, 08 Oct 2009 01:10:09 -0700, Dorthe Wildenschild wrote:

> On Oct 7, 9:05 am, David Fanning <n...@dfanning.com> wrote:
>> Dorthe Wildenschild writes:
>>> I have a fltarr of 4008x4008x865 voxels that I'm trying to write to a
>>> file using
>>
>>> GET_LUN, lun
>>> OPENW, lun, '/nfs/blahblah.dat'
>>> WRITEU, lun, volume
>>> CLOSE, lun
>>> FREE_LUN, lun
>>
>>> this normally works like a charm for writing a simple binary data
>>> file, but for this large dataset, I can't get it to work? The file
>>> that get's written is way too small (about 3.5 GB - if I write it as
>>> a netDCF it is =A821 GB, which is more like the right size)
>>
>>> Any ideas what goes wrong here?
>>
>> My guess would be a 32-bit operating system. :-)
>>
>> Cheers,
>>
>> David
>>
>> --
>> David Fanning, Ph.D.
>> Coyote's Guide to IDL Programming (www.dfanning.com) Sepore ma de ni
>> thui. ("Perhaps thou speakest truth.")- Hide quoted text -
>>
>> - Show quoted text -
>
>
> can't be, the system is 64 bit, Linux - with 64 GB of memory, so should
> be OK (and it is, I don't get any errors)

What is the NFS server filesystem/OS and NFS version? (the /nfs sort of
implies it's NFS mounted). I've never tried read/write multi-GB files
over NFS, but there could be issues there.

--
Nigel Wade

Report message to a moderator

[Message index]

		Re: writing large 3D data file fails By: penteado on Thu, 08 October 2009 07:26
		Re: writing large 3D data file fails By: Nigel Wade on Thu, 08 October 2009 04:32
		Re: writing large 3D data file fails By: dorthe on Thu, 08 October 2009 02:13
		Re: writing large 3D data file fails By: Nigel Wade on Thu, 08 October 2009 01:32
		Re: writing large 3D data file fails By: dorthe on Thu, 08 October 2009 01:10
		Re: writing large 3D data file fails By: JohnSmith on Wed, 07 October 2009 11:01
		Re: writing large 3D data file fails By: David Fanning on Wed, 07 October 2009 09:05
		Re: writing large 3D data file fails By: dorthe on Tue, 13 October 2009 02:58

Previous Topic:	Re: Browse for Cloud-Free MODIS Images
Next Topic:	Re: is there a 3D equivalent of CONTOUR?

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Oct 11 20:22:14 PDT 2025

Total time taken to generate the page: 2.16031 seconds