Re: MDC1 Tests

[Alex Sim <ASim@lbl.gov>]

Yes, I'm starting with 2000 now...
--Alex

David M. Malon wrote:
> 
> >
> >  These files are 600 MB!!!
> >  couldn't even stage two at a time...
> >  I started with 800 MB limit...
> >  I may have to increase it to 1500...
> >  what do you think?
> >  --Alex
> >
> >  Number of files already cached: 0
> >  Will start thread to stage file psc079_01_46evts_dst.xdf.STAR.DB with
> >  DBID 11
> >   and size 616136704 bytes.
> >  Stage request for file with FID 11 passed to thread.
> >  Thread 8 will transfer file psc079_01_46evts_dst.xdf.STAR.DB
> >   of size 616136704 bytes.
> >  Multinode is Disabled.
> >  Not enough space to stage file with FID 114.
> >
> >  --
> >  Alex Sim
> 
>    There was a proposal to use 2 GB as a cache size (see Arie's note),
>    and I think this is a good starting point (I pointed out the problem
>    with the 650+MB files in a reply).  This may turn out to be too large
>    for some of the queries, though, since some of the files are quite small,
>    and some queries requiring 75+ files will be able to cache everything.
> 
>    To David Zimmerman:  Are the queries that specify glb_trk_tot<10 likely
>    to return events in small files?  (I suspect that there may be a
>    significant correlation between small numbers of tracks and small events,
>    and this may in turn (here's the leap) yield files that are more likely
>    than most to be small.)
> 
>    David Malon

-- 
Alex Sim                        
MS 50B-3238                      http://sim.lbl.gov
DM, NERSC, LBNL                        ASim@lbl.gov
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