[daip] Re: 31DEC03-AIPS and PCQLinux9

[Eric Greisen]

Dharam Vir Lal writes:
 > > I do not know what PCQ Linux 9 is.
 > 
 > PCQ Linux 9 is called as PC Quest Linux 9 (distributed by PC Quest
 > magazine), which is roughly similar to RedHat Linux 9.

    We do not have this version and so cannot test anything.

 > 
 > > I would need to know much more about what you mean by "slow".  For
 > > example, is IMAGR slow when you run it with DOTV=-1?  Even with DOTV=+1
 > > it spends most of its time not in the TV mode, is it slow only when
 > > displaying/manipulating the image on the TV?
 > 
 > i was running IMAGR with DOTV=1 and similarly while running TVFLG.
 > it was slow only mainly while displaying/manipulating the image on TV.
 >  
 > > Have you tried TV=LOCAL when starting AIPS as well as the internet
 > > version of the TV.  When the TV starts what DISPLAY variable is used?
 > > (That is part of the messages that come out when it starts.)
 > 
 > all through after Linux installation, i have been running by just saying 
 > "aips" (i.e. without TV=LOCAL) option.
 > yes, i just now did run with TV=LOCAL option, it did become a lot faster.
 > it is surprising "unix sockets" option is faster than "internet sockets".
 > 
 > i now re-ran by saying "AIPS" (without TV=LOCAL) and i did not find
 > IMAGR/TVFLG to be terribly slow as i had experienced earlier.

    It sounds as if the problem has healed itself.  I was going to ask
if you had re-installed AIPS under the new OS and which compiler you
had used.  We use GNU 3.2.2 under RedHat 9.  Unless the slowness comes
back I would not worry about things.


 > >XASERVERS: Start message server MSGSRV on urvashi, DISPLAY :0.0
 > -----------------------
 > 
 > UNIXSERVERS: Start graphics server TKSRV1 on urvashi, display :0.0
 > UNIXSERVERS: Start message server MSSRV1 on urvashi, display :0.0

Some machines have had trouble with $DISPLAY = <hostname>:0.0 so I
asked to see if you were using that or the more recent version.  You
are using the recent version now.

Eric Greisen