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[Condor-users] Java max heap memory
- Date: Thu, 12 Jun 2008 17:10:34 +0100
- From: Richard Palmer <richard.d.palmer@xxxxxxxxx>
- Subject: [Condor-users] Java max heap memory
I've installed condor on a few windows desktops with Java, and
am a little baffled by Condor's max heap memory setting. Section
3.13 in the manual talks about explicitly setting the memory
to the largest amount support by Sun's VM, 1906M; however on two
of the desktops the maximum has been somewhere around
1500/1600M. Is there any obvious way to calculate what the
maximum should be set to?.
It may have something to do with them being dual-core
machines, in which case I assume '-Xmx' should be, at the very
most, half the physical memory?.
As an aside, condor_status -java seems to show [mem]/[slots]
physical memory per slot, regardless of the '-Xmx' setting.
Systems Administration Officer / Centre for E-Research
King's College London / Centre for Computing in the Humanities
Tel: 0207 848 1973