Re: [HTCondor-users] HTCondor vs diskless exec nodes

[Todd L Miller <tlmiller@xxxxxxxxxxx>]

> Right now, condor seems to handle the available memory as if the virtual 
> disk doesn't even exist, probably because the system/OS does the same.

> Available memory should at least be at 92GB instead of 96GB while idle.

	At a very crude level, you can set RESERVED_MEMORY in the startd 
configuration so that HTCondor ignores some amount of the system's RAM. 
This will prevent HTCondor from allocating more RAM to jobs than is 
actually available.  (For instance, if the system needs 4 GB for its own 
purposes and is dedicating 48 to "disk" space, you could set 
RESERVED_MEMORY to 52 GB.  Or you could set MEMORY to 44 GB.)

	That won't help with jobs going over their allocated disk space, 
but that's another topic I'll leave for another poster.

- ToddM