Configuring CPU and Memory Resources (osc-setcoremem)
The osc-setcoremem tool is supported on all SuperCluster systems that run SuperCluster 1.x
software with the July 2015 quarterly update, and SuperCluster 2.x software.
Use these topics to change CPU and memory allocations for domains using the CPU/Memory
tool called osc-setcoremem.
Description Links
Learn about the CPU/Memory tool. “osc-setcoremem Overview” on page 171
“Minimum and Maximum Resources (Dedicated
Domains)” on page 173
Find out if SuperCluster resources can be modified using the
CPU/Memory tool.
“Supported Domain Configurations” on page 174
Plan CPU and memory allocations. “Plan CPU and Memory Allocations” on page 175
Identify domain configurations.
“Display the Current Domain Configuration (osc-
setcoremem)” on page 178
“Display the Current Domain Configuration (ldm)” on page 180
“Access osc-setcoremem Log Files” on page 196
“View the SP Configuration” on page 199
Configure domain CPU and memory resources at the socket or
core level.
“Change CPU/Memory Allocations (Socket
Granularity)” on page 182
“Change CPU/Memory Allocations (Core
Granularity)” on page 186
Configure domain CPU and memory resources so that some
resources are parked.
“Park Cores and Memory” on page 190
Access information about previous executions of osc-
setcoremem.
“Access osc-setcoremem Log Files” on page 196
“View the SP Configuration” on page 199
Revert to or remove a previous CPU/memory configuration. “Revert to a Previous CPU/Memory Configuration” on page 201
“Remove a CPU/Memory Configuration” on page 202
osc-setcoremem Overview
SuperCluster compute server CPU and memory resources are initially allocated during
installation as defined by your configuration. CPU sockets are assigned to domains in the same
proportion as IB HCAs. Memory is assigned in the same proportions.
The osc-setcoremem tool enables you to migrate CPU cores and memory resources between
dedicated domains, and from dedicated domains to CPU and memory repositories for the use of
IO domains.
Maintaining the System 171
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