Creation of logical APIC ID with cluster ID and intra-cluster ID

A system comprising:

• a first processor package including a first cluster of processors and first logical interrupt identification number creation logic to:
• receive a first group of physical processor identification numbers each directed to one of the processors of the first cluster;
• and
• create a first group of logical processor identification numbers each directed to one of the processors of the first cluster, and wherein the logical processor identification numbers each include a processor cluster identification number formed to include a group of bits from a corresponding one of the first group of physical processor identification numbers shifted in position, and an intra-cluster identification number each formed in response to values of others of the bits of the corresponding one of the first group of physical processor identification numbers;
• and
• a second processor package including a second cluster of processors and second logical interrupt identification number creation logic to:
• receive a second group of physical processor identification numbers each directed to one of the processors of the second cluster;
• and
• create a second group of logical processor identification numbers each directed to one of the processors of the second cluster, and wherein the logical processor identification numbers each include a processor cluster identification number formed to include a group of bits from a corresponding one of the second group of physical processor identification numbers shifted in position, and an intra-cluster identification number each formed in response to values of others of the bits of the corresponding one of the second group of physical processor identification numbers.