Job distribution within a grid environment

A system for job distribution within a grid environment, comprising:

• a submission cluster for distributing jobs to at least one of a plurality of execution clusters, wherein each execution cluster comprises one or more execution hosts, and wherein the submission cluster comprises logic executable by a processor unit to:
• determine resource attributes corresponding to each execution host of the execution clusters;
• group, for each execution cluster, execution hosts based on the resource attributes of the respective execution hosts;
• define, for each grouping of execution hosts, a mega-host for the respective execution cluster, the mega-host for a respective execution cluster defining resource attributes based on the resource attributes of the respective grouped execution hosts;
• determine resource requirements for the jobs;
• and
• identify candidate mega-hosts for the jobs based on the resource attributes of the respective mega-hosts and the resource requirements of the jobs.

A computer program product for job distribution within a grid environment, the computer program product comprising:

• a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising computer readable program code configured to:
• determine resource attributes corresponding to each execution host of the execution clusters;
• group, for each execution cluster, execution hosts based on the resource attributes of the respective execution hosts;
• define, for each grouping of execution hosts, a mega-host for the respective execution cluster, the mega-host for a respective execution cluster defining resource attributes based on the resource attributes of the respective grouped execution hosts;
• determine resource requirements for the jobs;
• and
• identify candidate mega-hosts for the jobs based on the resource attributes of the respective mega-hosts and the resource requirements of the jobs.