From Array Suite Wiki
Default value = SGE
Set this to the type of grid engine. Acceptable values are:
- LSF2: same as LSF but use KB as memory unit (LSF usually assumes MB)
- SGE2: same as SGE but not using qacct to check job status
- SGE3: same as SGE but cluster skip writing mem_free
- SGE4: same as SGE but not using qacct to check job status; also add line "#$ -S /bin/bash" in qsub script to force the shell to use bash.