LSF Version 7.3 - Release Notes for Platform LSF

Index Measures Units Determined by
ncores number of cores per physical processor cores LIM
nthreads number of threads per processor core threads LIM
How environment variables determine elim hosts
If you use the default keyword for any external resource in lsf.cluster.cluster_name,
all elim executables in LSF_SERVERDIR run on all hosts in the cluster. You can control the
hosts on which your elim executables run by using the environment variables
LSF_MASTER, LSF_RESOURCES, and ELIM_ABORT_VALUE. These environment
variables provide a way to ensure that elim executables run only when they are programmed
to report the values for resources expected on a host.
•
LSF_MASTER—You can program your elim to check the value of the LSF_MASTER
environment variable. The value is Y on the master host and N on all other hosts. An
elim executable can use this parameter to check the host on which the elim is currently
running.
•
LSF_RESOURCES—When the LIM starts an MELIM on a host, the LIM checks the
resource mapping defined in the ResourceMap section of
lsf.cluster.cluster_name. Based on the mapping (default, all, or a host list), the
LIM sets LSF_RESOURCES to the list of resources expected on the host. Use
LSF_RESOURCES in a checking header to verify that an elim is programmed to collect
values for at least one of the resources listed in LSF_RESOURCES.
•
ELIM_ABORT_VALUE—An elim should exit with ELIM_ABORT_VALUE if the
elim is not programmed to collect values for at least one of the resources listed in
LSF_RESOURCES. The MELIM does not restart an elim that exits with
ELIM_ABORT_VALUE.
Enhanced resource requirement parsing (BETA)
Platform LSF Version 7 Update 3 improves the performance and rigor of resource requirement
select string syntax. The enhancement is available for BETA evaluation only. Contact
[e-mail] for more information.
Strict resource requirement syntax is enabled by configuration parameter
(LSF_STRICT_RESREQ=Y in lsf.conf). This enhancement only affects select[] resource
requirement strings. The enhancement does not affect other resource requirement sections
(rusage[], order[], span[], same[]).
Command and parameter syntax
Syntax for Platform LSF commands and parameters has been clarified.
Syntax rules
bold
Type the text exactly as shown.
user logoff
italics
The argument is a variable, which must be replaced with a real value you provide.
Release Notes for Platform LSF
10 Release Notes for Platform LSF