[galaxy-dev] How are jobs managed on single machine?

Hello, I cannot seem to find the details on how jobs are managed when Galaxy is run on a standalone server. Are jobs managed in a queue of some sort? Does Galaxy determine resources available in some way and moderate jobs that are run? As a specific example, we have a 40 core machine with 1TB of memory. If 10 users each submit 10 jobs each, say for a bowtie job that has been set to use 8 cores, will Galaxy sort this all out and only run jobs to fill the 40 cores? Are there settings to control this behavior without installing an external job manager like SGE? Thanks, Jim