On Wed, 3 Dec 2008 14:18:37 +0200 Micha Feigin <[EMAIL PROTECTED]> wrote:
> On Wed, 3 Dec 2008 12:40:45 +0200 > Johann Spies <[EMAIL PROTECTED]> wrote: > > > On Tue, Dec 02, 2008 at 04:53:45PM +1100, Alex Samad wrote: > > > > > I believe there is software out there that will do that, I read about > > > some recently, but can't find reference to it now :( > > > > Have a look at http://gridengine.sunsource.net/ > > > > Thanks, looks like a glorified pbs mostly but may be of some help. I was > hoping to somehow abuse numa and processor queues to make the cluster look as > a single numa computer but that seems to require hardware support (multi > processor numa system and not several systems combined into one numa). > > The solutions I found so far: > 1. Hardware - Buy a very expensive multi opetron system (not an option at > this time) >2. ssi (single system image) cluster, seems to be what I want, > it's just not clear to me at the moment if there is anything that can > properly migrate threads http://en.wikipedia.org/wiki/Single-system_image Looks like current options are LinuxPMI ( continues that dropped openmosix project) Kerrighed (web page says that they are planning to allow thread migration in november) Mosix 2 (commercial) Looks like all of them support comunication through pipes, doesn't seem like any of them support thread migration yet, would love to hear otherwise. > 3. Batch/Grid systems > > Your reference seems to fall into the third category. > > The problem with this is that you either need to use mpi or cluster openmp > (which I haven't managed to get working on non-opetron systems) or to run > several unconnected jobs in parallel. > > I prefered number 2 but as I said, it doesn't seem to handle multi threaded > and shared memory programs, most of them not even as a whole (i.e once you > have threads the whole job will not migrate). > > I want to get more threads for matlab. The solution is matlab > distributed computing (which costs about 4000$, not cheap also), and agian, > mostly allows managing several jobs in parallel on a cluster but not a > massively parallel job > > I will read a bit more into these as the machines are supposed to arrive > tomorrow finally (4 quad core machines). Will try to give a followup if anyone > is interested. > > > Regards > > Johann > > > > > > -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]