ParaStation5 Administrator's Guide
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This only comes into play, if the user does not define a sorting strategy explicitely via
PSI_NODES_SORT
. Be aware of the fact that using a batch-system like PBS or LSF *will* set the
strategy explicitely, namely to NONE.
overbook { true | yes | 1 | false | no | 0 }
If the argument is one of
yes
,
true
or
1
, all nodes may be overbooked by the user using the
PSI_OVERBOOK
environment variable.
If the argument is one of
no
,
false
or
0
, ParaStation will deny overbooking of the nodes, even if
PSI_OVERBOOK
is set.
It might be useful to prohibit the start of processes on a frontend machine since usually this machine
is reserved for interactive work done by the users. When the execution of processes is forbidden on a
distinct node, parallel task might be started from this node anyhow.
The default is to allow all nodes to run processes of parallel tasks.
processes
maxprocs
Define the maximum number of processes per node.
This parameter can be set during runtime via the set
maxproc
directive within the ParaStation
administration and management tool psiadmin(1).
pinProcs { true | yes | 1 | false | no | 0 }
Enables or disables process pinning for compute tasks. If enabled, tasks will be pinned down to
particular CPU-slots. The mapping between those CPU-slots and physical CPUs and cores is made
using a mapping list. See CPUmap below.
The pinProcs parameter can be set during runtime via the set
pinprocs
directive within the
ParaStation administration and management tool psiadmin(1).
bindMem { true | yes | 1 | false | no | 0 }
This parameter must be set to true if nodes providing non-Uniform memory access (NUMA) should
use 'local' memory for the tasks.
This parameter can be set during runtime via the set
bindmem
directive within the ParaStation
administration and management tool psiadmin(1).
CPUmap { map }
Set the map used to assign CPU-slots to physical cores to
map
.
Map
is a quoted string containing a
space-separated permutation of the number 0 to
Ncore
-1. Here
Ncore
is the number of physical cores
available on this node. The number of cores within a distinct node may be determined via list hw. The
first number in
map
is the number of the physical core the first CPU-slot will be mapped to, and so on.
This parameter can be set during runtime via the set
bindmem
directive within the ParaStation
administration and management tool psiadmin(1).
supplGrps { true | yes | 1 | false | no | 0 }
This parameter must be set to true if processes spawned by ParaStation should belong to all groups
defined for this user. Otherwise, they will only belong to the primary group.
This parameter can be set during runtime via the set
supplementaryGroups
directive within the
ParaStation administration and management tool psiadmin(1).
Summary of Contents for ParaStation5
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