1. A method for efficiently allocating register file entries included in a register file to a thread group, the method comprising: receiving, from the thread group, an allocation request to allocate a plurality of register file entries included in the register file to the thread group; determining a required number of mapping table entries included in a register file mapping table (RFMT) based on the request, wherein each mapping table entry included in the RFMT is associated with a different plurality of register file entries included in the register file; parsing the RFMT to locate a quantity of available mapping table entries in the RFMT equal to the required number of mapping table entries; and for each available mapping table entry in the quantity of available mapping table entries, associating with a register file pointer an address that corresponds to a first register file entry in the plurality of register file entries associated with the available mapping table entry.