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The current KASI cloud system supports three possible cases of a cluster: case 1) cluster without any preparation of MPI-related setups, case 2) cluster with preparation of MPI-related setups, which are also needed for using GNU parallel on multiple nodes, as well as NFS network-shared volume, and case 3) cluster with preparation of MPI-related setups, but without the NFS network-shared volume. In the case 1, you still can access the cluster nodes with ssh. Therefore, using GNU parallel is possible in this case. However, there is no network-sharef filesystem in this cluster. If you like to use Gluster network-shared filesystem with the cluster, it is possible to have the filesystem following the guide Using Gluster network filesystems. In the case 2, MPI-related configurations are automatically handled, and the NFS network-shared volume is also provided with your chosen configuration. The case 3 is the same as the case 2 except for the absence of the NFS network-shared volume. However, you can setup the Gluster network-shared filesystem following the guide Using Gluster network filesystems. As explained in the following step 1, these three different cases can be configured as your cluster by choosing three different kinds of cluster templates.
Step 1. Choose a cluster template: case 1) KASI-Cluster-Basic, case 2) KASI-OpenMPI-Cluster or KASI-OpenMPI-Cluster-Slurm, and case 3) KASI-OpenMPI-Cluster-Simple
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or KASI-OpenMPI-Cluster-Slurm-Simple
As presented in the following figure, multiple options are available for the cluster. If you need Slurm in your cluster, choose KASI-OpenMPI-Cluster-Slurm or KASI-OpenMPI-Cluster-Slurm-Simple template in Project → Cluster Infra → KASI Cluster Templates. If you simply need an MPI(or GNU parallel)-enabled cluster, choose KASI-OpenMPI-Cluster or KASI-OpenMPI-Cluster-Simple. If you need a cluster for the case 1 explaine the above Step 0, choose the KASI-Cluster-Basic template.
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