[daip] Extremely slow TV based tasks

[Poonam Chandra]

Dear Eric,
	In continuation to my previous message, I started running AIPS in
local UNIX domain. It certainly made TV related jobs faster but stll it is
little slower than what it used to be normally. I am not running any other
job on my PC. Something strange I noticed is the following: With local
UNIX domain, when I am running SPFLG, the task is faster for first few
minutes and then it again slows down. It happened multiple times. I am
quite confused as it has not  happened earlier.
Regards
Poonam.
...................................................................
Poonam Chandra(Research Scholar)     Off# A-272,Theo. Astrophysics
TIFR,Homi Bhabha Road,Mumbai-400 005 Ph# 022-22804545 extn(2380)
...................................................................

On Tue, 16 Nov 2004, Poonam Chandra wrote:

> > Poonam Chandra writes:
> >  > Dear AIPS help-desk
> >  > 	I have recently installed AIPS software on my linux machine
> >  > (Pentium IV). I am using Fedora Core 2 and I installed AIPS using
> >  > gcc-3.2.3. Everything is working fine. But the major problem is that all
> >  > TV based tasks like IMAGR, TVFIDD, TVWIN, SPFLG etc. are extremely slow.
> >  > The TV looks least sensitive to the mouse and large time lag is there. It
> >  > is giving me lots of problem in running TV based tasks. Can you please let
> >  > me know what is the problem?
>
> Dear Eric,
>
> >
> > Without knowing a lot more about your setup, I cannot tell for sure.
> >
> > 1. If you are computing on machine A and run XAS on A, but display on
> >    machine B on your desk, this will be slow unavoidably.  Solution,
> >    run XAS on machine B.
>
> Computing and XAS both are running on one single machine.
>
> >
> > 2. If you are all on one machine, and using Inet TVs, then perhaps
> >    your operating system is having to ask some remote machine to
> >    provide name service every time instead of caching that name
> >    service locally.  Best solution - fix the OS.  Another choice, use
> >    Unix sockets:
> >         aips tv=local
> >    See AIPS CookBook chapter 2, or man aips, or help aips for all the
> >    options.
>
> No Eric, I am not using any remote machine. Everything is on my machine
> only.
> >
> > 3. What is the $DISPLAY variable?  Perhaps you can send me all the
> >    messages that come out when you start aips (and its TVs, servers,
> >    etc.)
>
> Below is the message that comes out when I start aips
> ______________
> [aips at EINSTEIN ~]$ aips
>
> You have a choice of 5 printers.  These are:
>
>     No. [ type  ] Description
> -------------------------------------------------------------
>      1. [     PS] Computer Center Printer
>      2. [     PS] Theory Astrophysics
>      3. [     PS] Theo. Astro- Laser Printer
>      4. [     PS] Computer Center Printer
>      5. [     PS] Theory Astrophysics
> -------------------------------------------------------------
>
> START_AIPS: Enter your choice, or the word QUIT [default is 1]:
> START_AIPS: Your initial AIPS printer is the Computer Center Printer
> START_AIPS:  - system name lp2, AIPS type PS
>
> START_AIPS: User data area assignments:
>   (Using private file /home/aips/.dadevs)
>    Disk 1 (1) is /home/aips/AIPS/DATA/EINSTEIN_1
>    Disk 2 (2) is /home/aips/AIPS/DATA/EINSTEIN_2
>    Disk 3 (3) is /home/aips/AIPS/DATA/EINSTEIN_3
>    Disk 4 (4) is /data/aips/AIPS_DATA/EINSTEIN_7/EINSTEIN_4
>    Disk 5 (5) is /data/aips/AIPS_DATA/EINSTEIN_8/EINSTEIN_5
>    Disk 6 (6) is /data/aips/AIPS_DATA/EINSTEIN_9/EINSTEIN_6
>
> Tape assignments:
>    Tape 1 is 4 mm DAT DRIVE DDS3 on EINSTEIN
>    Tape 2 is REMOTE
>    Tape 3 is REMOTE
>
> START_AIPS: I am GUESSING you are at a workstation called einstein
> START_AIPS: Starting TV servers on einstein asynchronously
> START_AIPS:  - with Internet Sockets...
> START_AIPS: Starting TPMON daemons on EINSTEIN asynchronously...
> Starting up 31DEC04 AIPS with normal priority
> Begin the one true AIPS number 1 (release of 31DEC04) at priority =   0
> XASERVERS: Start TV LOCK daemon TVSERV on einstein
> XASERVERS: Start XAS on einstein, DISPLAY :0
> AIPS 1: ZDCHIN: NO NETSP ENTRY FOR DA04
> AIPS 1: THIS MEANS THE TIMDEST LIMIT IS SET TO VALUE IN SP FILE OR 14.0
> AIPS 1: ZDCHIN: NO NETSP ENTRY FOR DA05
> AIPS 1: ZDCHIN: NO NETSP ENTRY FOR DA06
> TVSERVER: Starting AIPS TV locking, Inet domain
> AIPS 1: You are assigned TV device/server   1
> AIPS 1: You are assigned graphics device/server   1
> XASERVERS: Start graphics server TEKSRV on einstein, DISPLAY :0
> 1AIPS 1: Enter user ID number
> XAS: ** TrueColor FOUND!!!
> XAS: ***  Using shared memory option for speed ***
> ?1XAS: Using screen width height 1014 668, max grey level 255
> 0STARTPMON: [EINSTEIN] Starting TPMON1 with output SUPPRESSED
> STARTPMON: [EINSTEIN] Starting TPMON2 with output SUPPRESSED
> 6
> AIPS 1:                          31DEC04 AIPS:
> AIPS 1:      Copyright (C) 1995-2004 Associated Universities, Inc.
> AIPS 1:            AIPS comes with ABSOLUTELY NO WARRANTY;
> AIPS 1:                 for details, type HELP GNUGPL
> AIPS 1: This is free software, and you are welcome to redistribute it
> AIPS 1: under certain conditions; type EXPLAIN GNUGPL for details.
> AIPS 1: Previous session command-line history recovered.
> AIPS 1: TAB-key completions enabled, type HELP READLINE for details.
> AIPS 1: Recovered POPS environment from last exit
> >XASERVERS: Start message server MSGSRV on einstein, DISPLAY :0
> ____
> I hope this info is helpful.
> Regards
> Poonam
> >
> > Eric Greisen
> >
>