Date: Fri, 21 Jun 1996 19:50:57 -0700 (PDT) From: "James E. [Jed] Donnelley" <jed@webstart.com> To: davidg@Root.COM Cc: smp@freebsd.org, jed@llnl.gov Subject: Re: SMP version? Message-ID: <199606220250.TAA18003@aimnet.com>
index | next in thread | raw e-mail
At 05:38 PM 6/21/96 -0700, you wrote: >>I am looking for a symmetric multiprocessing version >>of Unix that I can get sources to. Do you know if there >>is such a version of FreeBSD (or Linux? ;-) available? >> >>Sorry for the "out of the blue" message. My application >>is a Scalable Coherent Interface (SCI) shared memory >>multiprocessor research project based on some unique >>optical networking technology at Lawrence Livermore >>National Laboratory. > > We (the FreeBSD project) are just starting our work on SMP support. We >have a working single-kernel-lock implementation and if the sources aren't >available for it now, they will be in a week or two. It's my understanding >that similar progress has been made in Linux, but I'm not associated with >that effort so I don't know its status. > If you're interested, I can put you in touch with the people working on >it...in fact, you can send email to smp@freebsd.org to contact the appropriate >people. > Good luck on your project. Do you (either of you) happen to know if there is a facility in this system (FreeBSD for an SMP) for a single shared memory "multiprocess." That is for multiprocessing on a single shared memory image (with separate register sets)? Is there a defined Posix interface to such memory sharing (beyond the mechanism that I have seen in System V)? Any documentation that you could point us at on this topic would be appreciated. I am trying to estimate the cost of using FreeBSD to support such shared memory multiprocessing on an Intel/SCI based shared memory multiprocessor. We need to have the ability to run a single "job" using shared memory on multiple processes to make the effort worthwhile. Assuming this sort of work would make sense, is there a community that we could collaborate with and potentially contribute code to? Thanks for any reply. --Jed http://www.webstart.com/cc/jed-signature.htmlhelp
Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199606220250.TAA18003>