The CoC provides an instructional HPC cluster called deepthought. SSH access to deepthought is provided through it's head node, named deepthought-login.cc.gatech.edu.. You must log into the head node with your Georgia Tech user name and password. The head node has limited compute and memory capacity therefore compiling and running jobs should be done on compute nodes instead. Jobs can be submitted using the sbatch command on deepthought from the cluster head node.
Once logged into deepthought-login, you can compile programs on compute nodes using the interactive feature of the qsub/salloc command and subsequently submit jobs to the compute nodes through the various Torque and Slurm queues. Submitting a job with the qsub/sbatch command is the only way to run programs on the compute nodes; you cannot log into nodes that are not currently allocated to a job you own.
For information on running compute jobs on the deepthought cluster, see How to Run Jobs on the Instructional HPC Clusters. Note: Since deepthought-login is shared by many users, please do not attempt to run resource-intensive programs on the head node, even for compiling/testing/debugging. You should submit your job to the appropriate Torque or Slurm queue.