# CAM-CHEM ## Links - [Musica Tutorial](https://github.com/dan800/musica_tutorial) - **If you need help** message Alex Coleman <medacola@leeds.ac.uk> on Teams ## Using queue reservation For this tutorial a queue reservation has been made specifically for the training accounts provided. This should provide reserved compute (16 nodes) for running jobs during the tutorial. ### Usage To use the reserved compute you will need to provide additional arguments to your job submission file. You are also unable to use the `-l nodes=4` argument to request nodes but you can use `-pe ib 160` for the equivalent effect. #### Example job script ``` # specify reservation ID #$ -ar 22 # specify feps-cpu project #$ -P feps-cpu # request 4 nodes #$ -pe ib 160 # request memory for each core #$ -l h_vmem=4.8G # specify some time (defaulted to 1h here) #$ -l h_rt=1:00:00 # run some code ./hello_world ``` The key arguments here are: - `#$ -ar 22` - this requests you use the advanced reservation ID 22 - `#$ -P feps-cpu` - this requests using the specific `feps-cpu` queue where the reservation has been made - `#$ -pe ib 160` - this requests using 4 nodes (160 cores over infiniband) ### Extra links - [Leeds HPC documentation](https://arcdocs.leeds.ac.uk/welcome.html)