HDTenEightyP/NetNews huggingface dataset:
From: badger@phylo.life.uiuc.edu (Jonathan Badger)
Newsgroups: fj.mail-lists.x-window
Subject: Re: Free software and the future of support for Diamond products
Date: 14 Sep 92 07:18:52 GMT
Distribution: fj
Organization: University of Illinois at Urbana

Date: Sun, 13 Sep 1992 17:56:00 GMT
Message-Id: <badger.716406960@phylo>
Newsgroups: comp.unix.sysv386,comp.windows.x,comp.os.linux,comp.unix.bsd,comp.os.mach,comp.sys.ibm.pc.misc,comp.sys.ibm.pc.hardware

steve@nuchat.sccsi.com (Steve Nuchia) writes:

>In <1992Sep12.035549.4743@zeos.com> kgermann@zeos.com (Ken Germann) writes:
>>The solution for the support of X/Windows in the Freeware arena or
>>any other arena would be to design a VESA based driver for these

>The solution, for those of us who care about such things, is to
>not buy undocumented hardware.  Vote with your wallet.
>-- 
>Steve Nuchia      South Coast Computing Services, Inc.      (713) 661-3301

Yes, but most people (at the time of purchase) don't know if the hardware
is going to be documented or not, which makes this sort of voting impossible

Jonathan Badger (an owner of a Dimond Stealth card for six months)
From: nagrwb@vax.ox.ac.uk
Newsgroups: fj.mail-lists.x-window
Subject: help - DEC.5000 / twm / .X11Startup
Date: 10 Sep 92 08:23:08 GMT
Distribution: fj
Organization: Oxford University VAX 6620

Date: 9 Sep 92 09:06:38 GMT
Message-Id: <1992Sep9.100638.8758@vax.oxford.ac.uk>
Newsgroups: comp.unix.ultrix,comp.windows.x

On logging in to a DECStation5000/200 I have sitting at my desk at
the moment I would like to automatically:
  kill the DecWindow Manager
  use twm
  set a few friendly X clients
  start-up epoch (which resides on another host) in an iconified state
  have the DEC Session Manager and DECterm console window iconified

I'm a bit of a novice at this sort of thing so here's my .X11Startup file
  
   # Kill the DecWindow Manager
   kill -9 `ps -ax | grep dxwm | grep -v grep | awk '{ print $1}'` 
   # Use the Tab Window Manager (is nicer anyway no?)
   twm &
   # Start up any other X clients that are desired.
   xsetroot -bitmap ...
   xbiff ... &
   dxclock ... &
   xload ... &
   xterm -iconic -title elm -e elm &
   xterm ... &
   xrsh otherhost /usr/local/bin/epoch ... & 

which does most of the job. However I don't know how to have the session
manager and console iconified automatically. Also the "xrsh ... epoch" exits
immeadiately. suggestions/help welcomed and yes i know i can set everything
up just as i'd like and then xlock when I'm not around but others need access
to the console.

Richard.
-- 
** R.W. Brankin -- Numerical Algorithms Group Ltd. -- nagrwb@vax.ox.ac.uk **
**   suggestions for sig. welcome   --   will need   include<std.discl>   **
From: lindh@uhasun.hartford.edu (Andrew Lindh)
Newsgroups: fj.mail-lists.x-window
Subject: Need X11R5 Support for Sun-2 bwone
Date: 12 Sep 92 19:54:01 GMT
Distribution: fj
Organization: The University of Hartford

Date: 11 Sep 92 23:59:57 GMT
Message-Id: <1992Sep11.235957.21582@sol.ctr.columbia.edu>
Newsgroups: comp.windows.x



X11R5 has support for the Sun-2 multibus bwtwo, but not the bwone.
Is there a patch to do this?


-- 
Andrew Lindh, a student at the University of Hartford -- Computer Science
INTERNET: lindh@uhasun.hartford.edu | NOTE: All views here are MINE!!!
BITNET:   lindh@hartford.bitnet     | Not the school's or those of anyone else!
UUCP:     lindh@uhasun.uucp         | ---- When will I graduate???        N1MTD
From: felix@laas.fr (Francois Felix INGRAND)
Newsgroups: fj.mail-lists.x-window
Subject: Serious leak/bug in XtAppAddWorkProc (X11R4, Ultrix 4.2a, SunOs 4.1.3).
Date: 12 Sep 92 20:34:12 GMT
Distribution: fj
Organization: LAAS-CNRS France

Date: 12 Sep 92 12:56:05 GMT
Message-Id: <FELIX.92Sep12145605@idefix.laas.fr>
Newsgroups: comp.windows.x,comp.windows.x.motif,comp.windows.x.intrinsics


This simple program leaks like hell... We strongly suspect the
XtAppAddWorkProc which is done in the TimeOut function.

Am I doing something wrong here? or is it just not allowed to register a
WorkProc from a TimeOut function?

Is there any fix for this leak. (I have not tried in X11R5)

Please reply by e-mail as our news feeder is often a week or two behind.

Thanks in advance

/* compile with:
gcc -static -o test-demo test-demo.c -I/usr/local/X11.4/include -I/usr/local/motif-1.1.4/Motif/usr/include -L/usr/local/motif-1.1.4/Motif/usr/lib/ -lXm -L/usr/local/X11.4/lib/ -lXt -lXext -lX11
*/

#include <Xm/Xm.h>
#include <Xm/PushB.h>

Boolean simulator ();

XtAppContext app_context;

int main(int argc, char **argv)
{
     Widget      topLevel, button;
     
     topLevel = XtVaAppInitialize(
				  &app_context,	/* Application context */
				  "Truck-demo",	/* application class name */
				  NULL,0,  /* command line option list */
				  (Cardinal *) & argc, argv,	/* command line args */
				  NULL,	/* for missing app-defaults file */
				  NULL);	/* terminate varargs list */


    button = XtVaCreateManagedWidget("pushme",
        xmPushButtonWidgetClass, topLevel,
        XmNlabelString,  XmStringCreateSimple("Push here to say hello"),
        NULL);

     XtRealizeWidget(topLevel);

     XtAppAddWorkProc(app_context, simulator, NULL);

     XtAppMainLoop(app_context);
}

void re_register_simulator(XtPointer ignore1, XtIntervalId ignore2)
{
     XtAppAddWorkProc(app_context, simulator, NULL);
}

Boolean simulator ()
{
     /* Nothing for now */
     /*Just want to show the leak */

     XtAppAddTimeOut(app_context,10,re_register_simulator, NULL); /* This guy will re register us in 10 ms. */

     return (TRUE); /* This is a work proc : we  deregister it */
}
--
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Francois Felix INGRAND                   "Read my Lisp... No new syntax" (nil)
LAAS/CNRS: felix@laas.fr      "La guerre, qu'on voit danser le long des golfes
ACS Technologies                     clairs, a des reflets d'argent" (Anonyme)
From: oj@miki.pictel.com (Oliver Jones)
Newsgroups: fj.mail-lists.x-window
Subject: Re: Animation
Date: 6 Sep 92 16:39:32 GMT
Distribution: fj
Organization: PictureTel Corporation

Date: Sun, 6 Sep 1992 11:40:11 GMT
Message-Id: <1992Sep6.114011.1382@miki.pictel.com>
Newsgroups: comp.windows.x

In article <1992Sep2.212745.24815@citib.com> flongo@bank.citib.com writes:
>I've animated a small object in a simple X window by using XOR to
>draw and erase the image, however it *flashes* ( jitters ) too much.
>Is there a way to get a smoother transition? 

You might try two things:
(1) draw the small arc into a pixmap, and use XCopyPlane
    to XOR it into your window.
(2) make up a font containing the "frames" of your animation
    as individual characters.  Then use XDrawText to output them.

2 is a lot of programming and font-hacking work, but it will
probably yield good results.
From: snail@lsl.co.uk
Newsgroups: fj.mail-lists.x-window
Subject: Re: Scrollbars (was Re: GUIs Considered Harmful)
Date: 15 Sep 92 21:37:16 GMT
Distribution: fj
Organization: Laser-Scan Ltd., Cambridge

Date: 15 Sep 92 13:37:40 GMT
Message-Id: <1992Sep15.143740.2440@lsl.co.uk>
Newsgroups: comp.windows.x,comp.human-factors

> I rather like the xterm/xman scrollbar behaviour, now that
> I've figured out how to work it -- Clicking/dragging button 2
> does the same thing described above, clicking button 1 pushes
> the line next to the pointer to the top of the screen, and clicking
> button 3 pulls the top line down next to the pointer.  Very handy.
> The bindings are a little weird (I would have swapped the button1/button2
> actions; it seems a bit more intuitive that ``move the thumb here''
> is the primary action and should be bound to the primary button),
> and the entire thumb can scroll off the bottom, but other than that
> it works well.

The thing that keeps me away from Xterms is teh scrollbar. It is horrific. Yuck
> 
> |> [...] and the
> |> buttons at the ends of the scrollbar are in pairs so if you miss and
> |> have to back up, you just move 1/8 inch, not all the way to the other
> |> end of the bar.
> 
> Agreed!  When I first saw a picture of the NeXT UI this was the
> first thing that jumped out at me.  Why didn't anyone else 
> think of that?  It's much more sensible than the Mac/Motif layout,
> and let's not even *mention* the horrifying things OpenLook 
> ``elevators'' do...

Never seen a NeXT, but it does sound like a good idea. But then again the
OpenLook `elevators' are a good idea too. Non proportional scrollbars are
*shite* though. 

> --Joe English
> 
>   joe@trystero.art.com
-- 
snail@lsl.co.uk      

Interviewer: "What's the most satisfying thing about being in
              The Sisters Of Mercy?"
Eldritch:    "When I collapse at the end of it..."
Interviewer: "Do you mean that?"
Eldritch:    "Yeah...."

Vote for Bill Clinton. Vote for Bill Clinton. Vote for Bill Clinton.
From: chris@wg.estec.esa.nl (Milquetoast)
Newsgroups: fj.mail-lists.x-window
Subject: Server modifications to minimise network traffic
Date: 11 Sep 92 00:03:16 GMT
Distribution: fj
Organization: WG/Estec, Noordwijk, The Netherlands

Date: 10 Sep 92 12:35:51 GMT
Message-Id: <1992Sep10.123551.5489@wg.estec.nl>
Newsgroups: comp.windows.x


I have a few questions about X network utilisation. These may be a bit
naive, but please bear with me - this is an area of X that I've not really
looked into before. I'm looking for pointers to books and on-line documents,
as much as answers.

The scenario we have is a closed network with a number of X terminals or
workstations used as X terminals, with custom applications being run on a
number of fileservers. We need to be able to minimise network traffic. One
way that has been suggested of doing this is to build the bitmaps into the
server and then use calls to the server to update the screen, rather than
having to transmit the bitmaps. There would only need to be a limited number
of bitmaps and there are no restrictions on the amount of memory and cpu
power we could use. So, my questions:

1)	Is this technically possible?
2)	Is it desirable?
3)	Is there any documentation or books that would point me in the right
direction, or do I have to go straight to the source?
3)	Are there other ways of minimising network traffic that we should also
investigate?

Any help will be appreciated.


Thanks,


Chris
------------------------------------------------------------------------------
Chris Rouch                                              chris@wg.estec.esa.nl
Serco Space Ltd                                            Tel: +31 1719 84672
ESTEC, The Netherlands                                     Fax: +31 1719 84192
------------------------------------------------------------------------------
Insect posse will be crushed
 





Keywords:
From: cyclone@netcom.com (Bill Sheppard)
Newsgroups: fj.mail-lists.x-window
Subject: Where does SIGUSR1 come from?
Date: 8 Sep 92 20:13:43 GMT
Distribution: fj
Organization: Netcom - Online Communication Services  (408 241-9760 guest)

Date: 8 Sep 92 16:21:02 GMT
Message-Id: <#trn==m.cyclone@netcom.com>
Newsgroups: comp.windows.x

I recently compiled xfishtank from export...one of the command line options is
'-s' for secure mode toggle.  When started in this mode the fishtank covers
all windows rather than being a background.  According to the source code the
window will go to the background upon receiving SIGUSR1.  What event will
cause SIGUSR1?  I assume it is some sort of mouse or keyboard action, but
there is no other reference to it in the source code except as part of the
signal handler.

Thanks,

Bill Sheppard
From: raistlin@uni-paderborn.de (Markus Koch)
Newsgroups: fj.mail-lists.x-window
Subject: Solaris and Motif
Date: 15 Sep 92 10:11:53 GMT
Distribution: fj
Organization: Uni Paderborn FB 17 Informatik GERMANY

Date: Tue, 15 Sep 1992 09:18:46 GMT
Message-Id: <RAISTLIN.92Sep15101846@tritta.uni-paderborn.de>
Newsgroups: comp.windows.x

Hello !

Does anybody have experience with porting Motif-1.1.3 
to a Sparc Station with Solaris ???

Thanx in advance
Markus
			     `""
			    (o o)
************************oOO**(_)**OOo****************************
* \\  /  *							*
*  \\/   *  InterNet : raistlin@uni-paderborn.de		*
*  /\\   *  Computer helfen uns Probleme zu loesen, die wir	*
* /  \\  *  vorher nicht hatten.				*
*****************************************************************
From: rorschak@daimi.aau.dk (Jesper Lauridsen)
Newsgroups: fj.mail-lists.x-window
Subject: Re: GUIs Considered Harmful
Date: 8 Sep 92 19:07:23 GMT
Distribution: fj
Organization: Exile Government of Bramming

Date: 8 Sep 92 15:43:59 GMT
Message-Id: <1992Sep8.154359.20187@daimi.aau.dk>
Newsgroups: comp.windows.x,comp.windows.misc

ematias@dgp.toronto.edu (Edgar Matias) writes:

[keyboard vs mouse]

>That's true, of course, and only a fool would argue that one device is
>more important than the other. 

If you had to choose between a computer with a keyboard and no mouse
and one with a mouse but no keyboard which one would you choose?
Unless your needs were very special you would get the one with the
keyboard. A mouse is a nice devise for some things, but a keyboard
is essential.
-- 
No News is Bad News
From: Peter_Imants_Buttuls@mts.ucs.ualberta.ca
Newsgroups: fj.mail-lists.x-window
Subject: Problem with Xlib
Date: 15 Sep 92 16:28:16 GMT
Distribution: fj
Organization: Workstation Div., Supermicro Systems Group, Sony Corporation

Date: Tue, 15 Sep 92 09:43:52 MDT
Message-Id: <3228745@mts.ucs.ualberta.ca>

I'm suddenly into XLIB programming. I'm getting a simple 
graph out, but I would like to control the size of the window
by a statement like *Xlib*Geometry: 300x300+0+0 in my
.Xdefaults file . I would like this to override the WIDTH and
HEIGHT values I supply in the XCreateSimpleWindow call, but this
is not happening when I print out the values of width, height
returned by XGetGeometry. Instead the values returned are what
I specify in my XCreateSimpleWindow call. What do I need to do
to have the window size specified in the .Xdefaults file
override that in the program.  I don't think there is a
mistake in my .Xdefaults file, the name of the application is
Xlib as specified in a call to XSetStandardProperties. I'm 
using Openwindows 3. THANKS.
 
Peter Buttuls, University of Alberta, Edmonton, Canada 
e-mail:(userpib@mts.ucs.ualberta.ca)
From: sinan@Mtesol.boeing.com (Sinan Karasu)
Newsgroups: fj.mail-lists.x-window
Subject: Re: Compile X11 under Solaris 2.0
Date: 8 Sep 92 22:24:52 GMT
Distribution: fj
Organization: Workstation Div., Supermicro Systems Group, Sony Corporation

Date: Tue, 8 Sep 92 13:07:14 PDT
Message-Id: <9209082007.AA08505@mtesol>


 In article <1992Sep7.115001.20556@cas.org>, lwv26@cas.org (Larry W. Virden) writes:
 ( About X11R4 stuff being included in OpenWindows 3)
> 1. imake and xmkmf comes with OpenWindows 3.0 at least.  
> 2. The xterm that is there is the std X11R4 xterm as far as I can tell.  It
> isn't an OpenLook one at least - unfortunately.
           ^^^^^^^^
 There is crttool available free which is an xview based xterm that actually does vt2xx 
emulation very nicely!.
> 3. The Athena widget libraries, extentions, etc. are all there.  As for 
> 'missing' stuff, I cannot imagine what of any major importance is missing,
> from the core X11 R4 tapes.  Twm is even there!

Thanx, that was my point...

Sinan
From: barmar@think.com (Barry Margolin)
Newsgroups: fj.mail-lists.parallel
Subject: Re: sgi/sun shared memory machines question
Date: 14 Sep 92 12:31:35 GMT
Distribution: fj

In article <1992Sep11.121830.17069@hubcap.clemson.edu> zilla@nj.nec.com (John Lewis) writes:
>Someone told me that the SGI multiprocessor machines cannot run
>different unix processes on different processors; they can only
>run a single (but possibly parallelized) process at a given time.
>The reason was said to be that the machines do not implement
>any mechanism for simultaneous writes.
>
>Is this correct?  If so, how are simultaneous writes from
>different threads of a parallelized process prevented?

I don't know whether it's true or not.  But if it is, prevention of
simultaneous writes within a process can be prevented using a semaphore in
shared memory.  The write() routine would check this, and delay until the
semaphore is cleared.

>Is the new sun multiprocessor (4/690?) similar?

No, it's exactly opposite.  A process can only be on one processor at a
time, so each processor runs a different process.

Prevention of simultaneous writes is accomplished by only allowing one
processor to be in the kernel at a time.  Upcoming releases of the OS
removes this restriction, and uses locks around specific critical regions
of the kernel rather than the entire kernel.
-- 
Barry Margolin
System Manager, Thinking Machines Corp.

barmar@think.com          {uunet,harvard}!think!barmar
From: gerkos@reis56.alleg.edu (Stacey Gerko)
Newsgroups: fj.mail-lists.parallel
Subject: (none)
Date: 10 Sep 92 12:53:56 GMT
Distribution: fj

I am doing a project utilizing Linda.  I will be taking the genes from an  
individual and take out the"garbage" DNA using a pattern matching  
algorithm.  I will then compare the known cystic fibrosis sequence with  
the sequence of the individual.

If you can provide any articles on Linda, cystic fibrosis, pattern  
matching algorithms, or the Human Genome Project, I will greatly  
appreciate it.

Please send response to:
gerkos@alleg.edu

thanks,
stacy gerko
allegheny college
From: kue@bau20.cad-bau.uni-hannover.de (Friedhelm Kueck)
Newsgroups: fj.mail-lists.parallel
Subject: PVM on SCO-Unix
Date: 7 Sep 92 17:23:51 GMT
Distribution: fj

Hello dear comp.parallel-readers!

We in our Institute at the University of Hannover try to build up a PVM-
Machine in an heterogenous environment of unix-workstations. We also have
a 386-PC under SCO-Unix integrated in our network. But here we have problems
to start the pvmd. Has anyone made experiences with the pvmd under SCO-Unix?

I would be glad to read something in my mailbox or in the newsgroup!

bye
F.Kueck
--
________________________________________________________________________________
    Institut fuer Stroemungsmechanik und Elektronisches Rechnen im Bauwesen
                           Universitaet Hannover
           Friedhelm Kueck                       kue@hp1.erib.uni-hannover.de
From: kaminsky-david@CS.YALE.EDU (David Kaminsky)
Newsgroups: fj.mail-lists.parallel
Subject: Re: Parallel Programming Platform
Date: 11 Sep 92 12:19:17 GMT
Distribution: fj

I'd just like to note (as is noted in Cap's paper) that the
performance data for "Linda" given in the <Parform> paper are actually
data for POSYBL (a public domain version of Linda).

As a result, these times almost certainly do not reflect the
performance achievable with optimized implementations of Linda like those
developed by Yale and SCA.

	Also in the paper:

"The bottleneck of LINDA in a distributed environment
is the concept of tuple space, especially the necessary
scanning operations to find tuples of certain format".

	Much of the Linda tuple matching is done at compile
time (see Nick Carriero's Thesis, Yale University).  "Scanning"
is not necessary.  In addition, modern network Linda systems
distribute tuple space eliminating the bottleneck.

David
From: mln@sunkj.larc.nasa.gov (Michael L Nelson)
Newsgroups: fj.mail-lists.parallel
Subject: Re: Synchonizing watches
Date: 4 Sep 92 17:42:40 GMT
Distribution: fj

I must be missing something here, because this looks quite simple.

-A & B already know this procedure.

A: says "Bing" to B
   B responds with "Bing" to A

this is ABBA time - the total delay

A:
1. says "Bong"
2. waits, say N minutes (N > ABBA) 
3. says "Bong" again

B already knows what N is, and can then determine
What AB is (Bong2 - Bong1 - N)

B tells A what AB time is.

A says "Bang" and waits AB time before zeroing
the watch

When B hears "Bang", B immediately zero's the watch

synchronized

Michael Nelson
From: bernardl@cs.Stanford.EDU (Bernard Lee)
Newsgroups: fj.mail-lists.parallel
Subject: Re: Fujitsu Unvells Ultra High Speed Supercomputer
Date: 14 Sep 92 12:31:29 GMT
Distribution: fj

|> Clifford Chen <cliffc@fujitsu.fai.com> writes:
[Text Deleted]

Most of us probably won't mind reading a concise technical
summary but I would view this as a marketing post.  Perhaps 
the moderator should make a point to emphasize the basic 
rules for commercial activies on Internet.  

[The position of this moderator, and most of the other moderators of technical
 groups, is that news releases which indicate availablility of products is
 acceptable news for the group. I do not allow blatant advertising---indeed,
 I not too gently steer it offline. Fuijitsu is a major player, so the release
 is news.
=========================== MODERATOR ==============================
Steve Stevenson                            fpst@hubcap.clemson.edu
Administrative address                     steve@hubcap.clemson.edu
Department of Computer Science,            comp.parallel
Clemson University, Clemson, SC 29634-1906 (803)656-5880.mabell
From: bogstad@imhfhp16.epfl.ch
Newsgroups: fj.mail-lists.parallel
Subject: Wanted: Red-black point relaxation solver on par. machine
Date: 10 Sep 92 12:55:19 GMT
Distribution: fj

Hi 
I'm looking for an efficient red-black point relaxation (also known
as checkerboard pattern) algorithm for solving systems of equations
iteratively on a parallel machine. I'm running on a SIMD type machine.

Any ideas would be welcome...

Mark Chr. Bogstad
email: bogstad@dme.epfl.ch
From: bart@cs.wisc.edu (Bart Miller)
Newsgroups: fj.mail-lists.parallel
Subject: CORRECTION! IPS tools info
Date: 11 Sep 92 12:18:47 GMT
Distribution: fj

In the previous post, I incorrectly specified where you could get further
info on the IPS tools.

The CORRECT host name is: grilled.cs.wisc.edu.

Sorry for the confusion.
From: gvw@epcc.edinburgh.ac.uk
Newsgroups: fj.mail-lists.parallel
Subject: Glossary of Parallel Computing Terms
Date: 14 Sep 92 12:31:22 GMT
Distribution: fj

The second version of a glossary of parallel computing terms is now
available by anonymous ftp from:

	ftp.epcc.ed.ac.uk:pub/personal/gvw/glossary.ps.Z.uu

This is a partial, preliminary release of material which will eventually
appear as a textbook, to be titled "Practical Parallel Programming".  It
may be reproduced and circulated freely so long as the notice on the
title page is included.  My thanks to Richard Enbody, Eugene Miya, David
Skillicorn, and others for their comments and suggestions; further
comments and suggestions for additions would be very welcome. 

 ========================================================================
  Gregory V. Wilson                    ||  For in much wisdom is much
  Technical Coordinator                ||  grief; and he that increaseth
  Edinburgh Parallel Computing Centre  ||  knowledge, increaseth sorrow.
  gvw@epcc.edinburgh.ac.uk             ||               - Ecclesiastes
 ========================================================================
From: ramadan@cs.widener.edu (Mazin Ramadan)
Newsgroups: fj.mail-lists.parallel
Subject: Search for Distributed algorithms for Minimum spanning trees
Date: 15 Sep 92 12:59:33 GMT
Distribution: fj

Dear friends
	Hello there!
	I am looking for Distributed Minimum Spanning trees
algorithms.  It will be of great help if you could send me information
on papers or ftp sites (if any) from where I can get more information
on this topic.
Thanks

=================================================================
" Dreams are not meant to come true
	They are meant to be achieved. "

ramadan@cs.widener.edu
From: zilla@nj.nec.com (John Lewis)
Newsgroups: fj.mail-lists.parallel
Subject: sgi/sun shared memory machines question
Date: 11 Sep 92 12:19:47 GMT
Distribution: fj

Someone told me that the SGI multiprocessor machines cannot run
different unix processes on different processors; they can only
run a single (but possibly parallelized) process at a given time.
The reason was said to be that the machines do not implement
any mechanism for simultaneous writes.

Is this correct?  If so, how are simultaneous writes from
different threads of a parallelized process prevented?

Is the new sun multiprocessor (4/690?) similar?