[daip] Re: new problem with AIPS task

[computer support]

>Date: Tue, 30 Oct 2001 08:24:13 -0700
>From: Eric Greisen <egreisen at cv3.cv.nrao.edu>
>To: computer support <help at astro.ucla.edu>, daip at primate.aoc.NRAO.EDU
>
>computer support writes:
> > One user now reports that the task PBCOR suddenly no longer works correctly
> > (although I can't think of anything that has changed in our AIPS installation
> > that would affect that).  Basically, it says that it completed successfully,
> > but the data it writes are identical to the input, no matter what parameters
> > are chosen.  This has been seen on different user areas by different users on
> > different data sets.
> > 
> > Do you have any idea what might be causing that?  (Another subtle compilation
> > optimization problem maybe?  We did change our compilers since it last worked.)
> > The PBCOR patch (<ftp://aips.nrao.edu/pub/aips/31DEC00/patches.html#004>) was
> > applied, so it's not that.  Maybe you've seen that happen before...
> > 
>
>It does sound just like the bug the patch was designed to fix.  So are
>you sure?

Absolutely.

>What compiler are you using - and remind me what aips version and architecture?

31DEC00 under SunOS 5.6 (AIPS platform "SUL").  I recently upgraded 
our compilers to: Sun WorkShop 6 update 2 FORTRAN 77 5.3 2001/05/15.

>Eric

In general, is there a need to recompile when the system libraries 
get changed?  (That's the only difference I can think of.)  Thanks.

Philippe