[daip] Re: Large experiments, VBGLU, etc.

[R. Craig Walker]

Jim,

Was this triggered by my test meeting report?

Jon has been testing the long-unused ability to process large observations
with multiple pass processing to make sure we have a way to handle a small
number of such projects that may come through here for which we do not
have enough tape drives.  We have very little realistic prospect of
getting more than 14 playbacks so this gives us a way to handle a few big
globals and RDVs.  And it may give an alternative that will allow foreign
stations to abandon the tapes that are starting not to work very well,
causing us considerable pain on correlation.  We certainly don't want to
subject smaller projects to this sort of thing while we have an
alternative.

Cheers,

Craig


> Hi all,
>
> On the VLBA, why are we correlating projects (if we are) with
> 13 disk stations, for our 11 disk playbacks.  This makes life
> miserable for the users.  Shouldn't we be recording only 11
> stations on disk in that case, as I thought we had planned,
> and a couple stations on tape?
>
> Making a large number of users use VBGLU is not conducive
> to making the VLBA more user friendly.  For 20-station
> RDVs, the geodetic folks can buy us playbacks if they want
> to get all 20 stations.  If we can get to 14-station support for
> HSA, I'd rather spend another $100K keeping St. Croix from
> collapsing than spend it on playbacks, and I bet the RDV people
> sure would like to have SC as well.
>
> I'm copying this to daip because of the work that has been done
> on VBGLU and VBMRG recently.
>
> Jim
>


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    R. Craig Walker            Array Operations Center
    cwalker at nrao.edu           National Radio Astronomy Observatory
    Phone  505 835 7247        P. O. Box O
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