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- Newsgroups: comp.os.linux
- Path: sparky!uunet!pipex!warwick!sunserver1.aston.ac.uk!uhura!evansmp
- From: evansmp@uhura.aston.ac.uk (Mark Evans)
- Subject: Re: Distributed computing under Linux?
- Message-ID: <1992Nov13.092351.28665@aston.ac.uk>
- Sender: usenet@aston.ac.uk (Usenet administrator)
- Nntp-Posting-Host: uhura
- Organization: Aston University
- References: <1992Nov13.002947.10579@samba.oit.unc.edu>
- Date: Fri, 13 Nov 1992 09:23:51 GMT
- Lines: 79
-
- Bill.Saunders@launchpad.unc.edu (Bill Saunders) writes:
- : Hello all,
- : I'm wondering if anyone has thought of trying to get a
- : multiprocessing system working under Linux? Last night I was
- : trying to compile something while talking on the modem. I only
- : have a 386-40mhz machine and the constant disk access was making
- What speed modem were you using?
- : things go slowly. I thought about speeding things up by setting
- : up a network in my home with just a 386 motherboard and a hard
- : drive and ethernet card. Then using X and Linux I would be able
- : to transfer the source over to the second machine and compile it
- : there without a speed loss.
-
- If you want to be able to access files on another machine NFS might be better.
-
- : Then I thought about going to the minimal. What if all
- : I had was the 386 and memory and ethernet card? It wouldn't speed
- : up disk access(in fact it would slow it down-across the ethernet),
- : but I could run another program over there and basically not
-
- Untill mmap(2) is finished you cannot do this, as you need to have
- executables on a local disk (minix/extfs) to be able to run them currently
- under linux.
-
- : slow down my machine. Could this be done? Does X running on the
- : remote machine need a video card? A pretty inexpensive system
-
- The X server needs to be running on a machine with a display, the X clients
- can be running on anything which can connect to the server.
-
- : with just a 386mb,4meg RAM, and a ethernet card coud be made. Probably
- : less than $400 bucks. Would this be practical? Is it cheaper to
- : get a 486-33mhz or two or three 386-40's?
-
- Stick a 20M hd on these then you can run some X clients on them, if that
- is what you are thinking.
-
- : Then my brain had a massive surge of thought, what if
- : someone rewrote the kernel and made it distributed? Networks
- : are getting faster and faster. FDDI(fiber optics) can push 100Mb
- : compared to 10Mb(not sure of units but sure of values) on
- : ethernet. This would be a complicated job but it has been done.
- : It would be easier to write a set of routines to do remote
- : procedure calls. The benefit of rewriting the kernel would be
- : that less memory would be required on the remote(slave) computers.
-
- They have already been written, check out the sunrpc.
-
- : If we use X or remote procedure calls then the whole Linux kernel
- : needs to be running on the remote machine.
-
- That is because neither really support the concept of a slave system
- only of clients (slave processes)
-
- Both X and RPC support loosely coupled distributed systems.
- I don't see where you get the idea of less memory.
-
- : AnywayS, the main question is - is it possible to hook up
- : a 386 Mb, 4Meg RAM, a remote booting ethernet card and run Linux
- : and X on it?????
-
- If your question is can you run a 'diskless workstation' using linux
- the answer is not yet (there are still problems to be sorted out
- with executables)
-
- What you could do is take mother board and HD, take the display and
- keyboard bits out of linux (use com 1 as the console).
- You then simply have a 386 (or 486) unix box (most of your cost savings
- are in not having a monitor or a display) you can then do just about
- anything you like, except run an X server on this machine.
-
- For an X client you need something running a transport protocal (e.g.
- TCP/IP) which the X server understands and a network connection to
- the machine running the X server.
- --
- -------------------------------------------------------------------------
- Mark Evans |evansmp@uhura.aston.ac.uk
- +(44) 21 565 1979 (Home) |evansmp@cs.aston.ac.uk
- +(44) 21 359 6531 x4039 (Office) |
-