Calculate Socket and Core Numbers
2.
If hyperthreading is enabled, calculate the number of the second virtual
processor.
a.
Calculate the number of the first virtual processor by using the number or
the calculation from Step 1.
For example: 2 x 15 +2 = 32
b.
To calculate the total number of first virtual processors in the system,
multiply the number of sockets by 15.
For example, in an 8 socket system: 8 x 15 = 120
c.
Add the number of the first virtual processor to the total number of first
virtual processors in the system.
For example: 120 + 32 = 152
3.
To obtain the core number, divide the first virtual processor number by 15.
■
The quotient is the socket number.
■
The remainder is the core number.
For example 32 / 15 = 2 with a remainder of 2. Virtual processor 32 runs on socket 2, core 2.
Note -
To calculate the remainder using a calculator:
1. Divide the core number by the number of processors per core. This produces a whole
number and a decimal. For example:
32 / 15 = 2.133333333333333
2. The whole number is the socket. Subtract it from the total. For example:
2.133333333333333 - 2 = .133333333333333
3. Multiply the decimal by 15 to find the remainder, which is the core number on this socket.
For example:
.133333333333333 X 15 = 2.
Core 32 is processor 2, core 2.
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