Path: bga.com!news.sprintlink.net!demon!uknet!lyra.csx.cam.ac.uk! pipex!swrinde!hopper.acm.org!ACM.ORG!IAN_VOGT From: ian_v...@ACM.ORG Newsgroups: comp.os.linux.development Subject: Symmetric Multiprocessing for Linux? Date: 25 May 1994 14:07:27 GMT Organization: ACM Network Services Lines: 9 Message-ID: <2rvm2v$ctp@hopper.acm.org> Reply-To: ian_v...@ACM.ORG NNTP-Posting-Host: acm.org Are there plans afoot to extend Linux to support symmetric multi-processing (a la Mach?) I am a newcomer to Linux (and relatively new to *nix). My main interest is in finding a good operating system for high-reliability applications using multiple processors (e.g. Master-Standby). Thank you, Ian
Path: bga.com!news.sprintlink.net!rtp.vnet.net!ankh.iia.org! babbage.ece.uc.edu!news.kei.com!hookup!swrinde!ihnp4.ucsd.edu!sdcc12! cs!imcclogh From: imccl...@cs.ucsd.edu (Ian McCloghrie) Newsgroups: comp.os.linux.development Subject: Re: Symmetric Multiprocessing for Linux? Message-ID: <68328@sdcc12.ucsd.edu> Date: 26 May 94 23:34:50 GMT References: <2rvm2v$ctp@hopper.acm.org> Sender: n...@sdcc12.ucsd.edu Reply-To: i...@ucsd.edu Lines: 17 Nntp-Posting-Host: tartarus.ucsd.edu ian_v...@ACM.ORG writes: >Are there plans afoot to extend Linux to support symmetric >multi-processing (a la Mach?) I sincerely doubt it, since as far as I know, Linux only runs on 386-architecutre PCs and some Amigas (I know virtually nothing about the Amiga port). It's difficult to find these systems with the necessary hardware for SMP (like having more than one processor). If you want SMP like Mach does it, why not just use Mach? -- ____ \bi/ Ian McCloghrie | FLUG: FurryMUCK Linux User's Group \/ email: i...@ucsd.edu | Card Carrying Member, UCSD Secret Islandia Club GCS (!)d-(--) p c++ l++(+++) u+ e-(soon) m+ s+/+ n+(-) h- f+ !g w+ t+ r y*
Path: bga.com!news.sprintlink.net!rtp.vnet.net!news1.digex.net!uunet! MathWorks.Com!solaris.cc.vt.edu!vtaix.cc.vt.edu!tdunbar From: tdun...@vtaix.cc.vt.edu (Thomas Dunbar) Newsgroups: comp.os.linux.development Subject: Re: Symmetric Multiprocessing for Linux? Date: 27 May 1994 12:14:16 GMT Organization: Virginia Tech, Blacksburg, VA Lines: 23 Message-ID: <2s4o6o$mek@solaris.cc.vt.edu> References: <2rvm2v$ctp@hopper.acm.org> <68328@sdcc12.ucsd.edu> NNTP-Posting-Host: vtaix.cc.vt.edu NNTP-Posting-User: tdunbar imccl...@cs.ucsd.edu (Ian McCloghrie) writes: >ian_v...@ACM.ORG writes: > >>Are there plans afoot to extend Linux to support symmetric >>multi-processing (a la Mach?) > >I sincerely doubt it, since as far as I know, Linux only runs on >386-architecutre PCs and some Amigas (I know virtually nothing about >the Amiga port). It's difficult to find these systems with the >necessary hardware for SMP (like having more than one processor). no, it's not difficult at all to find them..for example, in many of the pc mags, ALR has been running an ad about it's 4-100mhz pentiums box ($22,000) being cheaper than Compaqs (>$30000). and there are several other SMP intel (386/486/pentium) boxes available. the problem is the cost is beyond Linux developers' budgets. ...i venture a guess that if ALR, Compaq, etc. were to donate a SMP box to Linus, there would be a Linux-SMP before long.
Newsgroups: comp.os.linux.development Path: nntp.gmd.de!xlink.net!howland.reston.ans.net!EU.net!Germany.EU.net! netmbx.de!zib-berlin.de!unidui!rrz.uni-koeln.de!rs1.uni-koeln.de!teralon! easix!bigcomm.gun.de!ado From: a...@bigcomm.gun.de (Christoph Adomeit) Subject: Re: Symmetric Multiprocessing for Linux? Message-ID: <1994Jun2.005332.480@bigcomm.gun.de> Organization: Private Date: Thu, 2 Jun 1994 00:53:32 GMT References: <2rvm2v$ctp@hopper.acm.org> <68328@sdcc12.ucsd.edu> <2s4o6o$mek@solaris.cc.vt.edu> Lines: 18 tdun...@vtaix.cc.vt.edu (Thomas Dunbar) writes: >the problem is the cost is beyond Linux developers' budgets. ...i >venture a guess that if ALR, Compaq, etc. were to donate a SMP box to >Linus, there would be a Linux-SMP before long. You won't need those big companies for that. I think if every Linux User would give 0.10 $ this would be enough:-) However, if money is the problem, I think a short ask for this in c.o.l.a. would bring much more than the needed amount easily. Ciao Christoph -- ------------------------------------------------------------------------------- bigcomm-linux-box: free linux-files at first call. bbs login "guest" nuucp login "nuucp" no password. Data: +49 211 3985258 request ~/filelist/allfiles.gz -------------------------------------------------------------------------------
Newsgroups: comp.os.linux.development Path: nntp.gmd.de!Germany.EU.net!EU.net!uknet!cf-cm!cybaswan!iiitac From: iii...@uk.ac.swan.pyr (Alan Cox) Subject: Re: Symmetric Multiprocessing for Linux? Message-ID: <1994Jun7.194217.549@uk.ac.swan.pyr> Organization: Swansea University College References: <68328@sdcc12.ucsd.edu> <2s4o6o$mek@solaris.cc.vt.edu> <1994Jun2.005332.480@bigcomm.gun.de> Date: Tue, 7 Jun 1994 19:42:17 GMT Lines: 26 In article <1994Jun2.005332....@bigcomm.gun.de> a...@bigcomm.gun.de (Christoph Adomeit) writes: >tdun...@vtaix.cc.vt.edu (Thomas Dunbar) writes: > >>the problem is the cost is beyond Linux developers' budgets. ...i >>venture a guess that if ALR, Compaq, etc. were to donate a SMP box to >>Linus, there would be a Linux-SMP before long. > >You won't need those big companies for that. I think if every Linux User >would give 0.10 $ this would be enough:-) >However, if money is the problem, I think a short ask for this in c.o.l.a. >would bring much more than the needed amount easily. I've been looking into this in detail with respect to making the net code a MACH multithreaded server as part of the linux-mach stuff. Most things are OK - some of the fs stuff needs a few more semaphores and spinlocks. The memory manager needs to do some pretty flash stuff and that I think is the only sticking point. Its probably only a two-three month project for someone prepared to trash the filesystems a few times until they get the spinlocks right and providing they have all the hardware. Alan
Path: nntp.gmd.de!Germany.EU.net!EU.net!uunet!bronze.coil.com! bronze.coil.com!not-for-mail From: br...@bronze.coil.com (Brad Block) Newsgroups: comp.os.linux.development Subject: Linux and symmetrical multiprocessing Date: 13 Jun 1994 12:53:59 -0400 Organization: Central Ohio Internet Link (614-538-8294 login: guest) Lines: 22 Message-ID: <2ti2v7$o73@bronze.coil.com> NNTP-Posting-Host: localhost.coil.com Okay, again: Has anyone seen or heard anything that would hint that Linux will be able to take advantage of SMP (symmetrical multiproccesing) in future kernel releases? Or, has anyone seen such a patch, driver, etc, for Linux or another similair OS (BSD...)? Or, would anyone like to try to help me write a driver to take advantage of SMP motherboards and the new specially adapted Pentiums that are easily multiprocessed? - Thanks! -- ----|Brad Block|---- ----|Sysoop: Wave 2 BBS|---- AKA: MaKi 614\766-1258 br...@bronze.coil.com -- ----|Brad Block|---- ----|Sysoop: Wave 2 BBS|---- AKA: MaKi 614\766-1258 br...@bronze.coil.com
Newsgroups: comp.os.linux.development Path: nntp.gmd.de!Germany.EU.net!EU.net!uknet!cf-cm!cybaswan!iiitac From: iii...@uk.ac.swan.pyr (Alan Cox) Subject: Re: Linux and symmetrical multiprocessing Message-ID: <1994Jun14.100234.5078@uk.ac.swan.pyr> Organization: Swansea University College References: <2ti2v7$o73@bronze.coil.com> Date: Tue, 14 Jun 1994 10:02:34 GMT Lines: 15 In article <2ti2v7$...@bronze.coil.com> br...@bronze.coil.com (Brad Block) writes: >Has anyone seen or heard anything that would hint that Linux will be able >to take advantage of SMP (symmetrical multiproccesing) in future kernel >releases? Or, has anyone seen such a patch, driver, etc, for Linux or >another similair OS (BSD...)? Or, would anyone like to try to help me >write a driver to take advantage of SMP motherboards and the new >specially adapted Pentiums that are easily multiprocessed? > Get me a 3+ CPU SMP motherboard and the low level programming docs for the SMP and I have an entire computer society who'll happily do the rest if they get to keep the board. Alan