Re: Revisited: Hurd on a cluster computer

2017-05-21 Thread Mark Morgan Lloyd
On 21/05/17 13:45, Justus Winter wrote: Samuel Thibault writes: Though there was some work, a reimplementation if memory serves, of the netmsg servers. The archive should have some infos on that. Yes, by Brent who was the instigator of the original thread that I was belatedly commenting t

Re: Revisited: Hurd on a cluster computer

2017-05-21 Thread Justus Winter
Samuel Thibault writes: > Justus Winter, on dim. 21 mai 2017 15:39:07 +0200, wrote: >> Samuel Thibault writes: >> >> > Mark Morgan Lloyd, on sam. 20 mai 2017 12:18:01 +, wrote: >> >> Finally, what is the Hurd portability situation? Way back I worked on a >> >> microkernel in '386 protected

Re: Revisited: Hurd on a cluster computer

2017-05-21 Thread Samuel Thibault
Justus Winter, on dim. 21 mai 2017 15:39:07 +0200, wrote: > Samuel Thibault writes: > > > Mark Morgan Lloyd, on sam. 20 mai 2017 12:18:01 +, wrote: > >> Finally, what is the Hurd portability situation? Way back I worked on a > >> microkernel in '386 protected mode that used segmentation heavi

Re: Revisited: Hurd on a cluster computer

2017-05-21 Thread Justus Winter
Samuel Thibault writes: > Mark Morgan Lloyd, on sam. 20 mai 2017 12:18:01 +, wrote: >> Finally, what is the Hurd portability situation? Way back I worked on a >> microkernel in '386 protected mode that used segmentation heavily, am I >> correct in assuming that that sort of thing is completel

Re: Revisited: Hurd on a cluster computer

2017-05-20 Thread Samuel Thibault
Mark Morgan Lloyd, on sam. 20 mai 2017 12:18:01 +, wrote: > Finally, what is the Hurd portability situation? Way back I worked on a > microkernel in '386 protected mode that used segmentation heavily, am I > correct in assuming that that sort of thing is completely deprecated in the > interest

Revisited: Hurd on a cluster computer

2017-05-20 Thread Mark Morgan Lloyd
Please excuse my raising my head above the parapet, most of the time I'm a lurker but I prefer the idea of a robustly-partitioned system and I think the industry-wide events of the last week or so reinforce that. >> [Brent said] The payoff is a supercomputer operating system that >> presents an

Re: Hurd on a cluster computer

2016-08-03 Thread Richard Braun
On Tue, Aug 02, 2016 at 03:44:30PM -1000, Brent W. Baccala wrote: > I've got the CMU code from Mach 3 for netmsg. How do you deal with its > copyright? Not sure what you mean. Compare the notice with what we have in GNU Mach. Personally, I strongly recommend starting from scratch. This code is us

Re: Hurd on a cluster computer

2016-08-02 Thread Brent W. Baccala
Well, then I suppose I'll go ahead and get netmsg running on a current Hurd system. It'll have all kinds of problems, of course, but I've never written a Hurd translator, so it seems like a good place to start. I've been trying to get Hurd running on qemu/kvm, but I'm having a lot of problems wit

Re: Hurd on a cluster computer

2016-08-02 Thread Olaf Buddenhagen
Hi, On Tue, Jul 26, 2016 at 01:42:16PM -1000, Brent W. Baccala wrote: > I've been wondering about using Hurd on a cluster computer; [...] > If so, then the first step would be to modify Mach, [...] Pretty much everything you describe has actually been considered in the original des

Re: Hurd on a cluster computer

2016-07-30 Thread Richard Braun
On Fri, Jul 29, 2016 at 07:34:39PM -1000, Brent W. Baccala wrote: > Any recent attempts to get netmsg running on GNU Mach? NORMA? None, recent or otherwise. -- Richard Braun

Re: Hurd on a cluster computer

2016-07-29 Thread Brent W. Baccala
Richard, Thanks for the reference to "single system image"; it helped me much to know what to Google for. I've looked into the network proxy you described. It seems to have taken several forms. First, a Mach server called "netmsg" relayed Mach messages using UDP. The big drawback was the overh

Re: Hurd on a cluster computer

2016-07-27 Thread Richard Braun
On Tue, Jul 26, 2016 at 01:42:16PM -1000, Brent W. Baccala wrote: > Can Hurd work, well, in such an environment? No, it was not designed for this kind of usage, although anything can be done with enough time and work. > First, it's basically Mach that would have to be modified, right? Changes >

Hurd on a cluster computer

2016-07-26 Thread Brent W. Baccala
Hi - I've been wondering about using Hurd on a cluster computer; i.e, a configuration where each node has multiple identical cores and its own memory. For example, an eight node cluster where each node has 8 GB of RAM and eight cores. I stress that the cores are identical, so that processe