MPI Class

• 'MPI at RNL' User Guide
• Lab Guide for MPI Class
• MPI sample code, sendRcv.c
• Info on Slurm: RNL; official.

VTune Class

• Lab guide: intro to VTune
• Makefile
• mult-sync.c
• mult-redux.c
• mult-good.c

OpenMP class

• Lab guide for intro to OpenMP
• omp-1.c
• omp-2.c

Remote access to the PCs at RNL

First login to the cluster machine at RNL (where XXXXX is your Fenix id):

$ ssh istXXXXX@cluster.rnl.tecnico.ulisboa.pt

Now you can access any of the lab machines (where Y is the lab number, 1 through 7; ZZ is the PC number, 1 through 10 - some labs have more)

$ ssh labYpZZ

You may not be able to use your AFS disk. Instead use your area in the cluster:

$ cd $CLUSTER_HOME

Also, use the following sequence of commands to generate and install the public keys, and thus avert the need for password:

$ cd $CLUSTER_HOME
$ mkdir .ssh
$ chmod og-rwx .ssh
$ cd .ssh
$ test -f id_ed25519 -a -f id_ed25519.pub || ssh-keygen -t ed25519 -f ./id_ed25519 -N ""
$ cat id_ed25519.pub >> authorized_keys
$ chmod og-rwx authorized_keys

In order to set the X display so that you can open windows from the lab machine to your display, you should use:

$ ssh -Y -J istXXXXXX@cluster.rnl.tecnico.ulisboa.pt istXXXXXX@labYpZZ