Dell PowerEdge 1655MC - Manual (Page 31)

Optimal BIOS settings for HPC with Dell PowerEdge 12 th generation servers
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Appendix B – Dell Deployment Toolkit to modify BIOS options
from the command line
The Dell Deployment Toolkit (DTK) is a component of Dell’s OpenManage suite of products for systems
management. StackIQ Rocks+ includes DTK utilities like syscfg, and this utility is automatically
installed on cluster nodes as part of the Dell roll.
With syscfg, BIOS options can be read and set directly from the Linux command line, simplifying
cluster management. This was especially useful for a study of this nature, where syscfg based
commands were scripted and run in parallel on all servers. The commands used to toggle the BIOS
options described in this white paper are provided below. Note this is not a complete list of syscfg
options but a handy reference. Refer to this
link for more details on DTK and syscfg.
Table 8. DTK syscfg options for changing BIOS settings
BIOS OPTION VIEW current setting CHANGE the value*
System Profile –-SysProfile ./syscfg –-SysProfile=PerfPerWattOptimizedDapc
|PerfPerWattOptimizedOs
|PerfOptimized
|DenseCfgOptimized
|Custom
CPU Power
Management –-ProcPwrPerf ./syscfg –-ProcPwrPerf=SysDbpm
|MaxPerf | OsDbpm
Memory Frequency --MemFrequency ./syscfg -- MemFrequency =MaxPerf
|MaxReliability
|1600MHz
|1333MHz
|1067MHz
|800MHz
Turbo Boost --turbomode ./syscfg --turbomode=Enabled|Disabled
C States --cstates ./syscfg --cstates=Enabled|Disabled
C1E --cpuc1e ./syscfg --cpuc1e=Enabled|Disabled
Monitor/ Mwait --MonitorMwait ./syscfg –-MonitorMwait=Enabled|Disabled
Logical Processor --logicproc ./syscfg –-logicproc=Enabled|Disabled
Node Interleaving --nodeinterleave ./syscfg –-nodeinterleave=Enabled|Disabled
*Note that any change to BIOS settings needs a system reboot for the change to take effect and for syscfg to
report the new value
.