Methods of processing core selection for applications on manycore processors

A method to manage a multi-processor system with one or more multiple-core coprocessors, comprising:

• intercepting coprocessor offload infrastructure application program interface (API) calls;
• scheduling user processes to run on one of the coprocessors;
• selecting cores for the group of threads such that the number of selected cores previously used by the thread group is maximized by:
• selecting allocated cores assigned to at least one earlier active phase of the thread group but not assigned to other thread groups.
• if more cores are needed, selecting cores that are free and not currently assigned to any thread group;
• and
• if still more cores are needed, selecting cores that are free but have already been assigned to other thread groups;
• scheduling offloads within user processes to run on one of the coprocessors;
• and
• binding threads of offloads to predetermined cores within one of the coprocessors by selecting and allocating cores to an offload, and obtaining an affinity setting from a user.