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[Condor-users] Use different machine ressources at different times


We want to use a few multi-core machines with condor.
Due to their owners demand we can only use a certain number of cores
during the day, but all machine resources during the night.
So we would need a way to dynamically restrict resource usage of condor
depending on the time.

E.g. The machine has 6 CPU cores and 8 GB of RAM.
During the day: Use only 4 CPU cores and 4 GB of RAM
During the night: Use all 6 CPU cores and 8 GB of RAM

Is there a way to implement this in condor?

I found a way of generally limiting the resources used, but no way to
change this dynamically.
Using SLOT_TYPE_1 = cpus=4,disk=100%,swap=100%,mem=80%

We would really like to use this machines as much as we could.
Any help would be greatly appreciated.

Best regards from Vienna,
DI Hermann Fuchs
Christian Doppler Laboratory for Medical Radiation Research for Radiation Oncology
Department of Radiation Oncology
Medical University Vienna
Währinger Gürtel 18-20
A-1090 Wien

Tel.  + 43 / 1 / 40 400 7271
Mail. hermann.fuchs@xxxxxxxxxxxxxxxx