trouble starting pvm:urgent
Robert G. Brown
rgb at phy.duke.edu
Wed May 8 02:03:52 PDT 2002
On Wed, 8 May 2002, Andrew Shewmaker wrote:
> A user can run multiple separate pvms as of pvm 3.4.4 The VMID can either be
> set in the hostfile or with the PVM_VMID environment variable. I really like
> this feature.
Halleleuja! About time! This will save endless grief (not to mention
enabling more than one PVM task per node on a cluster). And it is even
in RH 7.3 all ready to run, hot damn!
> >From my pvmd man page:
> id=VMID A new feature in PVM 3.4.4 is the concept of a "Virtual Machine ID".
> You can now set the VMID to an arbitrary string and this will distin
> guish and allow multiple virtual machines to run on the same set of
> hosts under the same userid. (This feature was originally introduced
> by SGI in their commercial PVM product, and has now been generalized
> for the public PVM system.) This feature seems to be something that
> people often want, and the PVM_VMID is the cleanest way to provide
> this functionality, rather than overloading the SHAREDTMP compiler
> flag and other internals. By default, all hosts which are added to
> the virtual machine will inherit the same VMID. If hosts are added
> to the virtual machine which are running older versions of PVM (prior
> to 3.4.4), then the VMID will be ignored for those hosts, and hence
> these machines can only be added to one virtual machine for the given
> user. The VMID need not be consistent on every host in a virtual
> machine (although this is not necessarily advisable).
Robert G. Brown http://www.phy.duke.edu/~rgb/
Duke University Dept. of Physics, Box 90305
Durham, N.C. 27708-0305
Phone: 1-919-660-2567 Fax: 919-660-2525 email:rgb at phy.duke.edu
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