[Kst] [Bug 116461] getdata borks when the first field in the format file isn't (ASCII) alphabetically the first field.

Barth Netterfield netterfield at astro.utoronto.ca
Wed Nov 16 05:55:48 CET 2005


On November 15, 2005 07:10 pm, George Staikos wrote:
> > This generally works pretty well in terms of assuring concurency across
> > the dirfile.  This issue is, however, the biggest down side of dirfiles.
>
>   And anything else that writes non-atomically or non-transactionally.

Heh.... Rock and hard place... the old boomerang format was flat fields.  When 
we tried to use them for BLAST we couldn't read a field fast enought to even 
keep up because you have to read everything to read anything....  The BICEP 
experiment is using flat fields - with 100 detectors + aux fields - so to 
read 1 field is >100x slower for them than for a dirfile.  Of course they 
don't have problems with concurency :-)

What we are using now seems to more or less work, though I am not completely 
happy with our current solution, as I'm not sure that there is any promise 
from the OS that it will work (is there?).  

cbn


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