20 Aug
2021
20 Aug
'21
1:14 p.m.
On Aug 20, 2021, at 4:07 PM, Guy Sotomayor via cctalk
<cctalk at classiccmp.org> wrote:
There were a couple of other PDP-11 multiprocessors that I know of (and used):
* C.MMP (eventually 16 PDP-11/40e's in an SMP configuration with a
crosspoint switch accessing a large memory). It ran a capability
based OS called Hydra.
* CM* this was a cluster of LSI-11s (as I recall) that were
hierachially interconnected to allow for distributed operation (I
think it was potentially capable of running with 255 nodes). I don't
recall what OS CM* used.
Of course both of the above did not use off the shelf OS's or software.
TTFN - Guy
Did you ever run across an ALGOL-68 compiler for either of these? At one time (while at
the U of Illinois I think, late 1970s, or perhaps a few years later at DEC) I had a set of
DECtapes that contained the run time libraries for that compiler. I think they were in
Bliss, and PDP-10 format DECtapes. I lost them at some point, unfortunately, and I never
had the compiler itself.
Some vague memory says it was an ALGOL-68 subset; most compilers were, ALGOL-68 is a
rather difficult language to compile if you want to support the whole thing.
paul