🚀 go-pugleaf

Manned Orbiting Laboratory Declassified: Inside a US Military Space Station
https://www.space.com/34661-manned-orbiting-laboratory-declassified-photos.html

There was a special three-processor (triplex) 360/67 done for MOL
program. Standard 360/67 multiprocessor "channel director" had
configuration switches that could reconfigure memory, processors, i/o
channels, etc for various reasons (including removing failed components
from configurations). The channel director configuration switches were
visible by software in the "control register" values. The MOL triplex
360/67 channel director was enhanced so that software could change the
switch settings by changing the values in the control registers.

360/67 functional characteristics. 360/67 was originally designed to
have up to four processors (although all production multiprocessors only
was for 2-processors, except for the one built for MOL) and
multiprocessor configuration had unique 360 features, like all
processors could address all channels. Pg 31-33 shows control register
values (for up to four processor configuration)
http://bitsavers.org/pdf/ibm/360/funcChar/A27-2719-0_360-67_funcChar.pdf

image of 360/67 "blue card" (inside also gives control register layout
for up to four processor configuration)
http://www.garlic.com/~lynn/folds.jpg

trivia ... at the science center, I had gotten the "blue card" from one
of the inventors of GML (i.e. invented at the science center in 1969,
GML chosen because they are the first letters of the inventors last
name).

science center posts
http://www.garlic.com/~lynn/subtopic.html#545tech
GML posts
http://www.garlic.com/~lynn/submain.html#sgml
Multiprocessor (&/or compare-and-swap) posts
http://www.garlic.com/~lynn/subtopic.html#smp


-- 
virtualization experience starting Jan1968, online at home since Mar1970