Subject: Re: [nmr_sparky] hello....slow spectra refreshing
From: Mandar T. Naik
Date: Oct 18, 2006

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Hi PP,
Something from the Sparky manual which might make the difference:

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Converting Bruker processed spectra to UCSF format

If you process your data with Brukers XWinNMR or UXNMR software you can
convert it to UCSF format using the program bruk2ucsf supplied with Sparky.
This program has not been tested much. Bruker processed data can also be read
directly by Sparky. Both the Bruker and UCSF file formats store the data
matrix in blocks so that the whole file does not need to be brought into
memory. The Bruker blocks are typically large (1Mb) while the UCSF blocks are
small (32Kb). Because Sparky is designed to use the small blocks, you might
run out of memory if you have many Bruker spectra loaded simultaneously. In
this case you should convert the Bruker files to UCSF format with bruk2ucsf.

To convert Bruker processed data 1/pdata/1/2rr to UCSF format use:

% bruk2ucsf 1/pdata/1/2rr noesy150.ucsf

###########

Try the data conversion and let us know,
regards
-mandar

On Wednesday 18 October 2006 15:09, pp_muscimol wrote:
hello....Im starting using sparky and its very slow (really slow)
refreshing the spectra window when you do any manipilations such as
zooming.

I read the 2 dimension files (2rr) as I do in NMRview or Auremol using
same PC (windowsXP-SP2). The graphic card is decent Nvidia 6800 GT.

Comparing sparky spectra manipulations seems to take forever compared
with other above programs.

There is anything that you recommended or that I should have done in
order to have good refreshing rates?

Thanks in advance:
PP