HDTenEightyP/NetNews huggingface dataset:
From: olson@anchor.esd.sgi.com (Dave Olson)
Subject: Re: Using a Sun CD on SGI
Organization:  Silicon Graphics, Inc.  Mountain View, CA
Date: Sun, 30 Aug 92 02:01:24 GMT

In <1992Aug29.231911.6341@oracle.pnl.gov> d3a132@pnl.gov (Carl P Baker) writes:

| OK, so I'm 12 kinds of idiot.  Was there a thread discussing the use
| of a Sun cdrom drive to install Irix across a network connection/NFS?
| Could someone point me in the right direction to resolve this?

Chances are good that if you are using it on an SGI system
(physically attached to an SGI system, that is!) to remote
install another SGI, that it will work.

Attached to a Sun is another matter, since the inst CD's are
in EFS format.  A program was posted to this group about
3 or 4 months ago that allowed one to extract EFS files from
the CD (or a disk, for that matter), on a Sun.  It works
sort of like a crude mtools.  Look in the archives; if you
can't find it, I've got a copy.  You need an SGI system somewhere
to borrow header files from, as I recall.
--
Let no one tell me that silence gives consent,  |   Dave Olson
because whoever is silent dissents.             |   Silicon Graphics, Inc.
    Maria Isabel Barreno                        |   olson@sgi.com
Newsgroups: comp.sys.sgi
From: cbas25@vaxa.strath.ac.uk
Subject: Problem with "chdir"
Organization: Strathclyde University VAX Cluster
Date: Mon, 31 Aug 1992 16:16:56 GMT

The following piece of code illustrates an anomaly between
IRIX 4.0.x and earlier versions of IRIX.
With 4.0.0 and  4.0.5  the second and third write
statements always print zero, wheras the second should be -1
and the third should be zero (unless you are in root directory!)
I seem to remember that --chdir--  worked correctly in 3.3.1, but I have
converted both my machines to 4.0.1 and 4.0.5 and so cannot
verify this now. 
Compiled on Personal Iris 4D-20  
C-------------------------------cut here------------------------
      PROGRAM CHANGEDIR

C  To test the fortran subroutine chdir
      I = 999
      write (*,*) I
      I = chdir ('notthere')    !  This directory is not there
      write (*,*) I             !  Should return -1
      call system ('pwd')       !  No change in directory
      I = chdir ('..')          !  Go to parent directory 
      write (*,*) I             !  Should return 0
      call system ('pwd')       !  Should now be parent directory
      stop
      end
C-------------------------------cut here------------------------

Peter Bladon
Department of Pure and Applied Chemistry
University of Strathclyde
Glasgow G1 1XL
Scotland

e-mail  cbas25%vaxa.strath.ac.uk
From: chris@cyber.mim.uni-hannover.de (Christoph Niessen)
Subject: Re: Need help whith QIC-02 on IRIS 3130
Organization: RRZN
X-Newsreader: Tin 1.1 PL4
Date: Thu, 3 Sep 1992 08:04:30 GMT
Newsgroups: comp.sys.sgi
From: wyllie@csri.toronto.edu (Andrew Wyllie)
Subject: setting up a multimedia suite
Organization: DVL, Dept. of Civil Engineering, University of Toronto
Date: 28 Aug 92 13:05:06 GMT


Multimedia on an SGI Indigo.

I am faced with putting together a video editting/computer
animation suite for a small data visualization lab.  We
would like to be able to combine live video (eg., someone
introducing the video or sitting in front of a computer.),
single frame animation (generated by Alias), and the real
time output of some of our in house software.  The idea
is to generate a promotional video for our lab as well
as videos to complement reports.  I will
need video and audio capabilities as well as a method to
generate titles, music, etc.  

Currently, all of our images (except live video) are being
generated on SGI machines.  For our editting suite, I will
more than likely be purchasing a new machine, so I will
basically be starting from scratch.  I'm not sure if going
to a Mac or maybe the Video Toaster would be better than
trying to do everything on a workstation.

I'm sure there are people who have had experiences putting
together similar setups.  I would like to hear about how
you have or would tackle this problem.  I would like to
put together the cheapest setup with the best quality.
(I guess that would go without saying).

thanks in advance
andrew





........................................................................
Andrew Wyllie                               wyllie@burst.civ.utoronto.ca
Data Visualization Labs       voice: (416) 978-5969  fax: (416) 978-8906
Dept Of Civil Engineering, University of Toronto, Toronto Ontario Canada
Newsgroups: comp.sys.sgi
From: markm@portal.vpharm.com (Mark Murcko)
Subject: multi-processor R4000 machines
Organization: Vertex Pharmaceuticals Incorporated
Date: Tue, 1 Sep 1992 20:51:52 GMT

Can anyone give the net a sense of when the multi-processor R4000
machines may truly be available, how many processors, what they will
cost, etc.?  Now that the R4000 indigo and Crimson seem well
established it must be getting close ...

/ Mark
From: olson@anchor.esd.sgi.com (Dave Olson)
Newsgroups: comp.sys.sgi
Subject: Re: Two screens on 4.0.5
Date: 3 Sep 92 19:18:02 GMT
Organization: Silicon Graphics, Inc.  Mountain View, CA

In <9209031620.AA02212@nmrpcd.bioch.bioch.ox.ac.uk> mikes@biochemistry.oxford.ac.uk writes:
| Anybody fancy describing how one would go about setting the machine up
| to run two displays at once, one with 4Dwm, one with twm?

Sure, just look at the loop in the /usr/lib/X11/xdm files that
does things on a per screen basis.  I'm almost positive we have
run different window managers on different heads of the Indigo
dual head machine.  You just need to set the DISPLAY variable
appropriately.
--
Let no one tell me that silence gives consent,  |   Dave Olson
because whoever is silent dissents.             |   Silicon Graphics, Inc.
    Maria Isabel Barreno                        |   olson@sgi.com
From: leep@vax.oxford.ac.uk
Newsgroups: comp.sys.sgi
Subject: Texture Questions
Date: 29 Aug 92 22:21:15 GMT
Organization: Oxford University VAX 6620

I am starting to add texturing to several graphics
programs and I have a few general questions:

	1) longimagedata: is the source for this program
available?  The readme in 4Dgifts/examples/vgx/texture
reads as if it should be present in that directory, but
it isn't.  It would be nice if it returned the x,y dimensions
of the image, as well as allowing a "~" or $HOME in the path.

	2) What is the hardware texture image memory size for
a five span vgx system?  (the manual states it is 2.5X less than
ten span, but does not give #'s.)

	3) Is the source for powerflip available as an example of
more advanced texture mapping options?  Or are there other good
examples available via ftp?

	4) I would like to map an image onto an object so that it
stretches as the object deforms, is this possible with texgen, or
do I need to generate the texture coordinates?  (a. powerflip seems
to do a nice job on this, how?)

Peter Lee.
Newsgroups: comp.sys.sgi
From: chuckb@milton.u.washington.edu (Chuck Bass)
Subject: Re: 4.0.5 distribution bottleneck
Organization: University of Washington
Date: Sun, 23 Aug 1992 17:20:52 GMT

That sounds like a great idea but... I don't think that the net
was created for commercial companies to avoid paying for
distribution costs of their newest software.  The way people
complain (no flames please ;-) about wasted bandwidth I can see
the war start when 5000 Indigo user are ftp'ing sgi.com for
50Megs of eoe1 & eoe2.


Chuck Bass
College of Forest Systems Engineering
University of Washington
chuckb@u.washington.edu
Newsgroups: comp.sys.sgi
From: chk@alias.com (C. Harald Koch)
Subject: Incoming UUCP flow control problem?
Organization: Alias Research, Inc., Toronto ON Canada
Date: Tue, 1 Sep 1992 15:25:48 GMT

We have a SGI IRIS-4D/80S running IRIX 4.0.1 with a 6-port serial board.
There are two modems used exclusively for UUCP connected to the on-board
modem ports, and four more modems connected to the 6-port board. All modems
are Telebits; the two UUCP modems and two of the others are TB+; the
remaining two are T2500s.

We have several PEP UUCP links to various local and LD sites. We have a
couple of V.32 links also, using the T2500s.

The modems are all connected with "proper" cables; the two on-board ports
use the standard flow-control cable described in the owners manual, and the
CDSIO modems use a cable described to me by the TAC (pins 1 and 6
disconnected). I'm using the ttyf device for all modems. The modems are all
configured to use RTS/CTS full duplex handshaking, by the fix-telebit script.

Problem:

I've been seeing lousy throughput on all incoming UUCP connections, much
worse than would be expected from even a busy 4D/80. (My 8MHz 68000 based
Amiga can keep up with a TB+; I'd expect a 16MHz R2000 to have no problems).
Throughputs have been 100-250 cps incoming, v.s. 1300+ outgoing on the PEP
links; 100+ incoming v.s. 850+ outgoing on the V.32 links.

I decided to turn UUCP debugging on, to see what's going on. I discovered
the following: incoming UUCP data is being trashed and/or dropped on a
regular basis. I'll see a normal incoming packet stream, and then something
like ..., 1, 2, 3, 4, 6. Packet 4 is usually trashed, and packet 5 is
missing altogether. A UUCP retry always fixes this, but the error eventually
happens again. On large file transfers, the remote UUCP usually decides it's
seen too many errors and hangs up.

This looks suspiciously like a flow-control problem. It goes away altogether
at 2400bps. It's worse on the on-board ports than it is on the 6-port board.

I've also tried the same configuration files and cables on a 4D/35S running
4.0.5A. There were 0 errors in the transmission of a 940K file, and the
throughput was 1401 cps.

Help! I can't guess why this would be happening; to the best of my
knowledge, everything is hooked up and configured correctly. Any suggestions
from Out There would be greatly appreciated!

--
"You are at wit's end.      | C. Harald Koch  Alias Research, Inc. Toronto, ON
Passages lead off in all    | chk@alias.com                (work-related mail)
directions..."  -related by | chk@gpu.utcs.utoronto.ca     (permanent address)
    Bryan Manske, 13-Aug-92 | VE3TLA@VE3OY.#SCON.ON.CA.NA            (AMPRNet)
Newsgroups: comp.sys.sgi
From: viebahn@Maschinenbau (Harro v. Viebahn)
Subject: SGI graphics board for Harris Nighthawk ?
Date: Wed, 26 Aug 1992 14:26:05 GMT
Distribution: comp
Organization: TH-Darmstadt

To whom it may concern !

We will probably buy a Harris Nighthawk VME-system (88100). Since we need a lot of graphics power
we are looking for a powerful graphics board for the Nighthawk, preferably Silicon Graphics. GL and\
PHIGS+ libraries should be available for the board. 

Thanks !
-------------------------------------------------------------------------------
Harro von Viebahn
Technical University of Darmstadt
Department for Flightmechanics and Control
Petersenstrasse 30
D-6100 Darmstadt
Germany
Tel.:  06151/166569
email: viebahn@sgi1.fmr.maschinenbau.th-darmstadt.de
-------------------------------------------------------------------------------
From: merkel@jhunix.hcf.jhu.edu (Frederick C Merkel)
Newsgroups: comp.sys.sgi
Subject: Detecting Vertical Retrace on Indigo
Keywords: vertical retrace
Date: 27 Aug 92 19:49:17 GMT
Distribution: comp.sys.sgi
Organization: Department of Psychology, Johns Hopkins University, Baltimore


We are doing some visual motion perception experiments, and need to be
able to determine precisely when the monitor is in vertical retrace.  

Presumably, we could use gsync() to synchronize the displays in single-
buffered mode, but this still does not show when the machine is in retrace,
and gsync() seems to occaisionally miss a retrace or two.  Is there any simple
way to detect when the vertical retrace occurs?

Thanks in advance.

Fred Merkel
Vision Laboratory
Department of Psychology
Johns Hopkins University
From: jimh@surreal.asd.sgi.com (Jim Helman)
Newsgroups: comp.sys.sgi
Subject: Re: How to control animation frame rates?
Date: 28 Aug 92 17:45:25 GMT
Organization: Home for Degenerate Physicists


   How can one measure animation frame rate on an Indigo Entry?
   I want to maintain a certain rate, but the complexity of each 
   scene may vary. 

A major goal of IRIS Performer (SGI's new toolkit for real-time
graphics and visual simulation) is to provide fixed frame rates
for scenes of varying complexity.  Performer can tell you how
close each frame is to going over the specified frame time so
you can adjust the scene complexity.  Alternately, if the
application provides different models (levels-of-detail),
Performer can switch in simpler models automatically based on
range, object pixel size and "graphics stress".

   What function returns the time most accurately?

Performer provides a time function which uses fast (25-33Mhz)
freerunning counters found on most machines.  Otherwise, you
could turn on the fast clock ("ftimer -f on") to get time of day
to within approx 1ms (or 400us if you crank up FASTHZ in the
kernel).  The down side of ftimer is that the kernel will need
to service clock interrupts much more often.

Also, if you need rock solid fixed frame rates, a multiprocessor
is best because it keeps daemons, networking and such out of
your hair.

rgds,

-jim helman

jimh@surreal.asd.sgi.com
415/390-1151
Newsgroups: comp.sys.sgi
From: vjs@rhyolite.wpd.sgi.com (Vernon Schryver)
Subject: Re: Help with an indigo configuration
Organization: Silicon Graphics, Inc.  Mountain View, CA
Date: Mon, 31 Aug 1992 18:32:42 GMT

In article <32285@adm.brl.mil>, leonardz@testarossa.cs.uoguelph.ca (Len Zaifman) writes:
>  ....
> 3)	What modem works well with slip?? I need the highest speed possible
> 	that works over a phone line as I won't be able to afford a leased line.
> 	What speed works reliably oveer the phone line?

Get a good v.32bis/v.42/v.42bis modem.  There are good and less good
vendors and models.  I like the Digicom 9624LE+ but not the Scout+.
I think the Intel 14.4EX is broken.  The Telebit T3000 is ok, but has
high latency for SLIP.  The ZyXEL is in between.  You can pay $230
for a less good modem and $350 for a very good modem; at least if
you by in quantity or if you shop by mail.  Well, you can also pay more.

With a good modem, you get from 1600 to 3600 Bytes/sec, depending on
how compressible is the data you send.  That is about 800 times slower
than ethernet, so the unwary are sometimes very unhappy.  Those of us
who remember 110 baud, 10 Byte/sec modems are happier.


Vernon Schryver,  vjs@sgi.com
From: cheekin@flash.swl.spec.ptg.sony.co.jp (Tang Chee Kin)
Newsgroups: comp.sys.sgi
Subject: sysadmin
Date: 1 Sep 1992 04:34:47 -0500
Organization: UTexas Mail-to-News Gateway
NNTP-Posting-Host: cs.utexas.edu


  hi.. I got files under dir /debug which keeps increasing and I could not
  clear it off. Anyone knows what are those files for ? Those files have
  filenames of just 5 digit numbers and they are big(>100k).
  I need some tips to handle this clearing of the /debug dir ?
  Thanks in advance.

*******************************************************************************
*									      *
* Tang Chee Kin								      *
* SONY Precision Engineering Centre, Software R&D Laboratory 		      *
* Blk 12, The Mendel, #03-04 Science Park Drive, Singapore 0511		      *
* Tel : (065) 7765858		Fax : (065) 7795657			      *
* E-Mail : cheekin@swl.spec.ptg.sony.co.jp				      *
*									      *
*******************************************************************************

Newsgroups: comp.sys.sgi
From: alan@hal.larc.nasa.gov (alan dare)
Subject: cvbuild problem in Workshop
Originator: alan@hal.larc.nasa.gov
Organization: NASA Langley Research Center, Hampton, VA  USA
Date: Wed, 2 Sep 1992 18:52:50 GMT


I having a problem with cvbuild under workshop. It will not correctly
interpret my makefile. In our application we wanted to keep the
object and source separate from each other in a directory structure
as shown below:

			<topdir>
			   |
			  / \
		   	obj  src

The makefile has served us well during initial development, but
I was dissapoinited that workshop is not handling it correctly. A sample
is shown below compiling a.c, b.c, c.c and creating an executable a.out.

OBJDIR = ../obj
R=$(@F:o=c)

OBJ_FILES = $(OBJDIR)/a.o\
	$(OBJDIR)/b.o\
	$(OBJDIR)/c.o

$(OBJDIR)/a.out:  $(OBJ_FILES) 
	cc -o $@ $(OBJ_FILES) 

$(OBJ_FILES) : $$R
	cc -c $(OPT)  $R -o $@ 


cvbuild gives the following error:
	Couldn't parse makefile
	Reason: cvbuild: Error:File "makefile", line 11
	cvbuild:Error:Unrecognized character "$"

Line 11 is "$(OBJ_FILES) : $$R". I would like to know if there is a way 
around it in Workshop or a modification to the makefile that would give 
us the same functionality and allow Workshop to interpret it correctly?

Thanks to any and all.
-- 

*********************************************************************
Alan Dare                     |  Internet : alan@hal.larc.nasa.gov
NASA Langley Research Center  |
From: gaumondp@ERE.UMontreal.CA (Gaumond Pierre)
Newsgroups: comp.sys.sgi
Subject: Problems with signal handling.
Keywords: signal
Date: 30 Aug 92 21:01:56 GMT
Organization: Universite de Montreal

I am on a 4D380 SGI machine under IRIX 4.0.1.

I am using a function to catch "bus error" and "segmentation fault". I call 
signal(2) once with SIGBUS and once with SIGSEGV. The same function is used to 
catch both signals.

I receive the good signal when the function is entered but, with SIGSEGV, the 
code is not one of those expected (if I refer to the manual). The numeric value 
is "4", corresponding to EINTR (interrupted system call).

[manual lines]
               Condition                        Signal      Code

               ...
               Invalid virtual address          SIGSEGV     EFAULT
               Read-only address                SIGSEGV     EACCESS
               Read beyond mapped object        SIGSEGV     ENXIO

Also, EACCESS (with two S) does not exist. EACCES is defined as "permission
denied" in "/usr/include/sys/errno.h".

[file lines]
...
#define	EINTR	4	/* Interrupted system call		*/
...
#define	ENXIO	6	/* No such device or address		*/
...
#define	EACCES	13	/* Permission denied			*/
#define	EFAULT	14	/* Bad address				*/

I would like to know what to expect ...

I would like to have a better description of the "bus error" and "segmentation
fault" errors. When do they occur? Are the 3 types of segemntation fault
possible on my machine?

Does it exist a function (in C) that can tell me if a pointer is valid or not?

Thanks for any information.

-- 
Pierre Gaumond.        gaumondp@ERE.UMontreal.CA
Services Informatiques, Universite de Montreal. 
C.P. 6128, Succursale "A", Montreal,            
Quebec, Canada.   H3C 3J7                       
Newsgroups: comp.sys.sgi
From: merritt@climate.NoSubdomain.NoDomain (John H. Merritt)
Subject: Re: 8mm and dd (a suggestion)
Organization: Climate and Radiation Branch
Date: Mon, 31 Aug 1992 21:20:11 GMT

In article <1992Aug31.192332.26751@nsisrv.gsfc.nasa.gov>, merritt@climate.NoSubdomain.NoDomain (John H. Merritt) writes:
|> In article <715275893@anthrax.cs.duke.edu>, jwt@duke.cs.duke.edu (Jeffrey W. Tannehill) writes:
[...]
|> |> with the BSD dump and restore commands.  However, whenever I try the dd
|> |> command to write I get:
|> |> 
|> |> > dd if=/etc/motd of=/dev/tape
[...]

|> I have noticed that if the input file has an odd number of bytes and
|> you output to the variable block device,  that the entire file will
[...]

So what!  What I meant to include was my suggestion for doing I/O to
the 8mm.  Pipe 'tar' into 'dd' for output and visa-versa for input.

tar cBf - whatever | dd of=/dev/nr8mm bs=10k     --- for output

dd if=/dev/nr8mm bs=10k | tar xvBf -             --- for input

This works because tar fills the buffer (10k sized) by padding when
there is not enough data in the file and so 'dd' always writes complete
blocks.  Your backups are working this way.

You should use tar or another program that pads to fill buffers.
-- 
        \___   \______   \__  \__  \___   \__
        \___  \________  \__  \__  \____  \__
        \___  \__   \__  \__  \__  \_____ \__
        \___  \__   \__  \_______  \__ \__\__   merritt@climate.gsfc.nasa.gov
\___    \___  \__   \__  \_______  \__  \____   
\___    \___  \__   \__  \__  \__  \__   \___   "Yesterday I knew nothing,
 \_________   \_______   \__  \__  \__    \__    Today I know that."
  \______      \_____    \__  \__  \__     \_
From: mberger@relay.nswc.navy.mil
Newsgroups: comp.sys.sgi
Subject: PUPDRAW OVERDRAW menus
Date: 25 Aug 92 19:31:29 GMT

My application displays several GL windows that are controlled by popup
menus (and sub-menus of varying size).  The popup menus are displayed in
the PUDRAW or OVERDRAW bit-planes using noborder(), winopen() and
prefposition(opx, opx + sizex, opy, opy + sizey).  Sub-menus are displayed
using winposition().  In 3.X I ignored the redraws caused by popup menus and
everything was fine (I ignore the REDRAWs because each window takes about 5
sec. to display).  In 4.0.1 when I go to sub-menus I get random colors where
the original menu/window was located.

Is there a way to clear the NORMALDRAW bit-planes so I can see through them,
or can I open a window that only has PUPDRAW bit-planes?  It seems that
someone would have run into this problem, is this a mixed GL, X application?

--- Mike mberger@relay.nswc.navy.mil
From: cheekin@flash.swl.spec.ptg.sony.co.jp (Tang Chee Kin)
Newsgroups: comp.sys.sgi
Subject: mailbox
Date: 26 Aug 1992 02:34:56 -0500
Organization: UTexas Mail-to-News Gateway
NNTP-Posting-Host: cs.utexas.edu


  Hi.. My colleague is interested in the animation of the mailbox on the
  sgi. Anyone knows where u can get the readily available src code.
  thanks.


*******************************************************************************
*									      *
* Tang Chee Kin								      *
* SONY Precision Engineering Centre, Software R&D Laboratory 		      *
* Blk 12, The Mendel, #03-04 Science Park Drive, Singapore 0511		      *
* Tel : (065) 7765858		Fax : (065) 7795657			      *
* E-Mail : cheekin@swl.spec.ptg.sony.co.jp				      *
*									      *
*******************************************************************************

Newsgroups: comp.sys.sgi
From: randy@caesar.iaf.uiowa.edu (randy frank)
Subject: Seiko ColorPoint Professional
Date: Tue, 25 Aug 1992 21:19:18 GMT
Distribution: usa
Organization: University of Iowa, Image Analysis Facility

Hello,
	Does anyone know if future IRIX releases will support
the Seiko ColorPoint Professional (300DPI 24Bit Dye Sublimation)
printer in system software in the future?  I was hoping for
support in imgprint or the SGI postscript printing package
(which I cannot remember the name of).  I have a demo model
here and was able to get it to print usinng the Seiko 8bit
driver using a raw data mode (-o"-u -t") but it required that
I manually scale the images externally (forced printing at 300DPI).
	One key factor (due to its current lack of PostScript
support) for our purchase would be that IRIX would support the
printer (or I could buy an SGI supportted addon product that
would).
	Thanks,
--
rjf.
Randy Frank, Engineer                       |  (319) 335-6712       
University of Iowa, Image Analysis Facility |  73 EMRB              
randy@tessa.iaf.uiowa.edu                   |  Iowa City, IA 52242