LSF Version 7.3 - Administering Platform LSF

Frequently asked questions
210 Administering Platform LSF
Frequently asked questions
Question Does LSF 7 on EGO support upgrade of the master host only?
Answer Ye s
Question Under EGO Service Controller daemon management mode on Windows, does PEM
start sbatchd and res directly or does it ask Windows to start sbatchd and res as
Windows Services?
Answer On Windows, LSF still installs sbatchd and res as Windows services. If EGO Service
Controller daemon control is selected during installation, the Windows service will
be set up as Manual. PEM will start up the sbatchd and res directly, not as Windows
Services.
Question What's the benefit of LSF daemon management through the EGO Service Controller?
Answer EGO Service Controller provides High Availability services to sbatchd and res, and
faster cluster startup than startup with lsadmin and badmin.
Question How does the hostsetup script work in LSF 7?
Answer LSF 7 hostsetup script functions essentially the same as previous versions. It sets
up a host to use the LSF cluster and configures LSF daemons to start automatically.
In LSF 7, running
hostsetup --top=/path --boot="y" will check the EGO
service defination files sbatchd.xml and res.xml. If
res and sbatchd startup is set
to "Automatic", the host rc setting will only start
lim. If set to "Manual", the host rc
setting will start
lim, sbatchd, and res as in previous versions.
Question Is non-shared mixed cluster installation supported, for example, adding UNIX hosts
to a Windows cluster, or adding Windows hosts to a UNIX cluster?
Answer In LSF 7, non-shared installation is supported. For example, to add a UNIX host to
a Windows cluster, set up the Windows cluster first, then run
lsfinstall -s -f
slave.config
. In slave.config, put the Windows hosts in LSF_MASTER_LIST.
After startup, the UNIX host will become an LSF host. Adding a Windows host is
even simpler. Run the Windows installer, enter the current UNIX master host
name. After installation, all daemons will automatically start and the host will join
the cluster.
Question As EGO and LSF share base configuration files, how are other resources handled in
EGO in addition to hosts and slots?
Answer Same as previous releases. LSF 7 mbatchd still communicates with LIM to get
available resources. By default, LSF can schedule jobs to make use of all resources
started in cluster. If EGO-enabled SLA scheduling is configured, LSF only schedules
jobs to use resources on hosts allocated by EGO.
Question How about compatibility for external scripts and resources like elim, melim, esub and
others?
Answer LSF 7 supports full compatibility for these external executables. elim.xxx is started
under LSF_SERVERDIR as usual. By default, LIM is located under
LSF_SERVERDIR.
Question Can Platform LSF MultiCluster share one EGO base?
Answer No, each LSF cluster must run on top of one EGO cluster.