[comp.unix.sysv386] SCO ODT on Multiprocessor Systems

harris@miller.cs.uwm.edu (Ken Harris) (05/06/91)

I am running stock ODT on a multiprocessor 486 system.
The X11 stuff seems to be working OK so far. However;
last week I was told that running ODT on a multiprocessor
system was not a good idea. That the software had lots
of problems when the Multiprocessor Extension (MPX) is
installed. Is any one else doing this? Do anyone know 
what awefull things might happen to  me? So far I have been
using this for about a month and have not had anything
unsually happen (ie. no crashes, panics, lockups, cores or
the like).

davidsen@sixhub.UUCP (Wm E. Davidsen Jr) (05/08/91)

In article <11815@uwm.edu> harris@miller.cs.uwm.edu (Ken Harris) writes:
| I am running stock ODT on a multiprocessor 486 system.
| The X11 stuff seems to be working OK so far. However;
| last week I was told that running ODT on a multiprocessor
| system was not a good idea. 

|                                          So far I have been
| using this for about a month and have not had anything
| unsually happen (ie. no crashes, panics, lockups, cores or
| the like).

  I hear this all the time, people who have it are not having problems
(you're only the third, though) and people who don't have it, or who
sell something else, say it's garbage. Sure does run like mad, doesn't
it?

  The nice thing is when you have a big pipeline and every process gets
it's own CPU... like "soelim foo | tbl | eqn | troff | thack | lpr" or
some such, which runs about 4x faster on MPX.
-- 
bill davidsen - davidsen@sixhub.uucp (uunet!crdgw1!sixhub!davidsen)
    sysop *IX BBS and Public Access UNIX
    moderator of comp.binaries.ibm.pc and 80386 mailing list
"Stupidity, like virtue, is its own reward" -me

wul@sco.COM (Wu Liu) (05/09/91)

/--harris@miller.cs.uwm.edu (Ken Harris) said...
| I am running stock ODT on a multiprocessor 486 system.
| The X11 stuff seems to be working OK so far. However;
| last week I was told that running ODT on a multiprocessor
| system was not a good idea. That the software had lots
| of problems when the Multiprocessor Extension (MPX) is
| installed. Is any one else doing this? Do anyone know 
| what awefull things might happen to  me? So far I have been
| using this for about a month and have not had anything
| unsually happen (ie. no crashes, panics, lockups, cores or
| the like).
\--

Depends on which version of Open Desktop and/or MPX you have.  ODT 1.1
with MPX 1.1 was tested together and is known to work (with caveats;
you'll need to refer to the installation or release notes for that
information).  ODT 1.0 and MPX 1.0 had problems; they were developed
and tested independently of each other.  One of those things that in
hindsight should never have happened, but c'est la vie.  That's how
the learning process works, right? :-)

Don't try to mix versions of ODT and MPX, please.  MPX adds various
kernel drivers and such, and therefore assumes that you are installing
on the appropriate software baseline.