RE: Re: NUMCPU >1 = IEE331A EXCESSIVE DISABLED SPIN LOOP DETECTED

In 1978, I was working for a service bureau (Datacrown Inc. of Toronto,
Canada) with a 3033 MP and three 168 MP's all running MVS 3.8
(pre-MVS/SE) with no problems. 

 

We were very current on maintenance, so if this is an MVS problem, there
may be PTF's available for this. 

 

 

Wally Mclaughlin 

   

 

From: [email protected] [mailto:[email protected]]
On Behalf Of laddiehanus
Sent: Thursday, May 20, 2010 8:30 AM
To: [email protected]
Subject: [turnkey-mvs] Re: NUMCPU >1 = IEE331A EXCESSIVE DISABLED SPIN
LOOP DETECTED

 

  

IIRC machines of the era when 3.8 was current only had 2 CPU's max. Even
the 3084 which had 4 cpu's had to be partitioned into 2 sides with 2
CPU's each when in 370 mode and SP 1.3 was required. 

I think that 3.8 support of 2 cpu's was buggy (but I am not really not
sure) and that SE or SP was really needed to get multi cpu support to
run well.

The data structures do support 16 look at macros ihalccat and ihapccat
in the source code

Laddie

--- In [email protected]
<mailto:turnkey-mvs%40yahoogroups.com> , Jeff Sumner <jdos2@...> wrote:
>
> With 8 CPU's defined on an 8 core box, I get:
> 
> 
> ipl 148 
> CPU0000: SIGP Initial program reset (07) CPU0001, PARM 00000000: CC 0 
> CPU0000: SIGP Restart (06) CPU0001, PARM 00000000: CC 0 
> CPU0000: SIGP Initial program reset (07) CPU0002, PARM 00000000: CC 0 
> CPU0000: SIGP Restart (06) CPU0002, PARM 00000000: CC 0 
> CPU0000: SIGP Initial program reset (07) CPU0003, PARM 00000000: CC 0 
> CPU0000: SIGP Restart (06) CPU0003, PARM 00000000: CC 0 
> CPU0000: SIGP Initial program reset (07) CPU0004, PARM 00000000: CC 0 
> CPU0000: SIGP Restart (06) CPU0004, PARM 00000000: CC 0 
> CPU0000: SIGP Initial program reset (07) CPU0005, PARM 00000000: CC 0 
> HHCCP011I CPU0000: Disabled wait state 
> PSW=000200FF 80050064
> (and nothing comes up on any of the x3270 sessions)
> 
> Similar things with 4. 
> 
> I can only boot Turnkey with 2.
> 
> 
> 
> On May 19, 2010, at 12:16 PM, Rick Fochtman wrote:
> 
> > --------------------------------<snip>------------------------------
> > So MVS38j *will* use multiple cpus ?
> > -------------------------------<unsnip>-----------------------------
> > Very nicely. 3.8J would use up to 8 CPU's in a CEC.
> > 
> > ---------------------------------<snip>--------------------------
> > Or is that Hercules starting the O.S on the multiple cpus?
> > -----------------------------<unsnip>----------------------------
> > I don't know Hercules well enough to answer that. But on a
single-engine PC, trying to activate a second MVS CPU probably isn't
going to serve any purpose, other than, perhaps, add to confusion
factors.
> > 
> > ------------------------------<snip>--------------------------
> > The turnkey "stock" config has NUMCPU 1, is that because the
multiple CPU feature didn't exist at the time Turnkey was released, or
other reasons ?
> > ------------------------------<unsnip>------------------------
> > MVS has always run on up to at least 8 CPU's, so there may well be
other reasons.
> > 
> > Rick
> >
>