Hitachi Compute Blade 2000 User Manual page 1077

In the server blade of a NUMA configuration, the configuration example of the processor
and the memory to the LPAR, which is recommended from the memory access
performance perspective, is shown below.
When the Scheduling mode is the dedicated mode
There are two types for improving the memory access performance:
• When specifying the physical processor number, and
• When configuring the processor group
When configuring a processor group, it is possible to skip specifying the physical
processor number in the LPAR configuration.
Those are the same memory access performance.
When specifying the physical processor number
LPAR1
1way
LPAR2
2way
Dedicated
(Specified processor0)
Physical Socket
0
processor
Core
(Processor
number)
Physical memory
A recommended example when in dedicated mode
(specifying the physical processor number)
Logical processor
Dedicated
(Specified processor2)
1 2 3
small small
Node0 Node1
1026
Memory access
Memory
access cost
Dedicated
(Specified processor3)
Specifies the processor of
the same node as the
allocated memory.
↓
The memory access is
always performed to a
local memory and you can
get the best memory
access.