Large Interactive Sessions on hippu

Hippu does not have any job management system installed. Thus, simply giving the command

fluent 3ddp

will launch an interactive 3-dimensional double precision Fluent session. Similarly, giving the command

gambit -id mycase

will start an interactive Gambit session.

Large Interactive Sessions on murska

Serial interactive runs can be directly submitted to the job-management system (LSF) on murska using the command

bsub -n 1 -W 00:20 -M 1048576 -Ip srun fluent 3ddp

In the example above an interactive serial session lasting 20 minutes and consuming in maximum 1 Gb of memory launching the three-dimensional double precision solver of Fluent is sent to the queue.
Parallel interactive sessions - for instance in order to pre-process parallel runs - can be submitted by

bsub -n 4 -W 00:20 -M 1048576 -Ip fluent -t4 -pib -slurm -mpi=hp 3ddp

The example above allocates 4 processors for 20 minutes with 1 Gb of memory and launches a four processor (make sure that the value given after the -t option this is the same as for the -n option of the bsub-command!) three-dimensional double precision run of Fluent. As by default the much slower Ethernet is used as the inter-process communication channel, one should explicitly take the Infiniband hardware into use by adding the option -pib. The switch -slurm is necessary to tell Fluent that it is run under the SLURM resource management system.