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Re: [HTCondor-users] system calls on vanilla universe

On 8/19/2013 1:51 PM, Antonis Sergis wrote:
dear all,

does anybody know how system calls from an executable are handled on
the nodes of a vanilla universe? System calls in the standard
universe are performed remotely on the administration machine
however, i could not find anything regarding the vanilla universe



Hi Antonis -

In the standard universe, system calls are intercepted via a library linked into the job via the condor_compile tool, and are then performed remotely upon the submit machine.

In the vanilla universe, no libraries are linked into the job binary and thus no system calls are intercepted. Thus system calls for an executable submitted into the vanilla universe are handled directly by libc and/or the kernel on the execute machine (aka worker node).