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* Parameter passing from JDL -> ( WMS -> ) CREAM -> BLAH -> LRMS |
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** Mechanism |
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Described best in http://grid.pd.infn.it/cream/field.php?n=Main.ForwardOfRequirementsToTheBatchSystem |
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The bug http://savannah.cern.ch/bugs/?42288 can be circumvented by setting cerequirements |
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explicitly. |
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*** Set cerequirements in JDL |
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** By means of a 'hook' |
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- BLAH translates requirements to environment variables; the inequivalencies < and <= |
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are treated in the same way by appending _Max to the variable name; same with > and >= |
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which get _Min. |
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- environment variables are passed to pbs_local_submit_attributes.sh, if it exists |
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in $GLITE_LOCATION/bin. |
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- this script must decide what to do with the requirements; stdout is going |
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to the pbs submit script. |
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** Example |
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In SA3 an example script was created and tested; see https://savannah.cern.ch/task/?9461 |
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- the environments are treated like this: |
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memmin="$GlueHostMainMemoryRAMSize_Min" |
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if [ -z "$memmin" ]; then |
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memmin="$GlueHostMainMemoryRAMSize" |
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fi |
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if [ "$memmin" -gt 0 ]; then |
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echo "#PBS -l mem=${memmin}mb" |
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fi |
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** Issues |
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