Provided by: opa-fastfabric_10. bug



       Permits  the  generation of configuration files for FastFabric or resource managers from a
       topology xml file.

       When using a topology spreadsheet and opaxlattopology to design and prepare for deployment
       verification  of  a  fabric, opa2rm may be used to generate resource manager configuration
       from  the  planned  cluster  design.  Using  this  approach  will  allow   the   resulting
       configuration  files  to  be  complete, even if some nodes in the fabric have not yet been
       installed or made operational.  Alternatively,  opareport  -o  topology  can  be  used  to
       generate a topology XML file for input to opa2rm. In this case, only the currently present
       nodes will be included.

       When working with SLURM, the opa2rm -o slurm option should typically be used. This  option
       will  generate  a SLURM configuration file that lists the hosts directly connected to each
       switch in a syntax that can be used by SLURM's topology/tree plugin. It also  generates  a
       single  "fake"  switch  shown as connecting all the other switches together. This approach
       allows for SLURM job placement to be improved while avoiding undo overhead in SLURM.  This
       option also allows for topologies that are not a pure fat-tree.

       When  the  configuration  is  a  pure  fat  tree or oversubscribed fat tree, the opa2rm -o
       slurmfull option may be used to generate the full description of the fabric, including all
       intermediate and core switches in the fat tree topology. This option may permit better job
       placement optimization than the output from the opa2rm -o slurm option. However for larger
       fabrics, it may also increase the overhead within SLURM.


       opa2rm   [-v]   [-q]   -o   output  [-g|-u|-t]  [-F   point]  [-p   prefix]  [-s   suffix]



                 Produces full help text.


                 Specifies verbose output.


                 Disables progress reports.

       -o/--output output

                 Specifies the output type:

                 slurm     SLURM tree nodes. Supports a variety of topologies.

                 slurmful  SLURM fat tree nodes and ISLs. Only supports pure trees.

                 hosts     FastFabric hosts file omitting this host


                 Specifies the output switch GUIDs instead of names.


                 Changes spaces in switch names to underscores.


                 Truncates switch names at first space.

                 This will treat large Director switches as a single, big switch.

                 If -g, -u or -t are not specified, the switch name's  suffix,  after  the  first
                 space,  will  be  placed at the start of the name. For example, 'core5 Leaf 101'
                 becomes 'Leaf101_core5'.

       -F/--focus point

                 Specifies the focus area for output. Limits the scope of output  to  links  that
                 match any of the given focus points.

       -p/--prefix prefix

                 Specifies the prefix to prepend to all FI hostnames.

       -s/--suffix suffix

                 Specifies the suffix to append to all FI hostnames.


                 Specifies the topology_input file to use. '-' may be used to specify stdin.

Point Syntax


                 value is node description (node name).


                 value1 is node description (node name); value2 is port number.


                 value is glob pattern for node description (node name).


                 value1 is glob pattern for node description (node name); value2 is port number.


                 value is node type (SW or FI).


                 value1 is node type (SW or FI); value2 is port number.


                 value is string for rate (25g, 50g, 75g, 100g).


                 value is MTU size (2048, 4096, 8192, 10240); omits switch mgmt port 0.


                 value is glob pattern for cable label.


                 value is glob pattern for cable length.


                 value is glob pattern for cable details.


                 value is glob pattern for link details.


                 value is glob pattern for port details to value.


       opa2rm -o slurm topology.xml

       opa2rm -o slurm -p 'opa-' topology.xml

       opa2rm -o slurm -s '-opa' topology.xml

       opa2rm -o slurm -F 'nodepat:compute*' -F 'nodepat:opacore1 *'

       opa2rm -o nodes -F 'nodedetpat:compute*' topology.xml

       opa2rm -o hosts topology.xml