Since Yogipriyo offered a visual solution, here is how you can access SSH without the need of a GUI. Really, it depends on what you are comfortable with; I would personally recommend it. There are plenty of ways to utilize SSH depending on your OS (that is, 'computer A's OS'): Windows: MobaXTerm, Cygwin, and Putty are the popular ones that I've heard about.

The SSH client is a requirement – the SFTP and X11 clients are preferable but optional. Microsoft Windows We have found that the easiest program to use for accessing the JHPCE cluster is MobaXterm as it combines the functionality of all 3 software packages (SSH, SFTP, and X11) in 1 program. The root of macos by 'ssh -Y' commands in xshell or Linux, the GUI displays on mac. I Install the xQuartz, and it's ok to run the root locally.

I like MobaXTerm simply because you can have multiple tabs. Mac: Most have the ability to SSH built in via the X11 terminal. You might need to install XQuartz to enable X11 port forwarding though if this isn't working for you. *Nix: Just get to command line; you probably know that. Once you are there, Vim is a great editor to know. This again is a 'text-based' editor and thus lends itself well to use over SSH. Keep in mind a lot of this is personal opinion, so explore and find what makes you most productive.

Contents • • • • • • • Introduction (formerly know as Allinea DDT) is a powerful commercial parallel debugger with a graphical user interface. It can be used to debug serial, MPI Message Passing Interface, multi-threaded, and CUDA programs, or any combination of the above, written in C, C++, and FORTRAN. —an efficient parallel profiler—is another very useful tool from ARM (formerly Allinea). The following modules are available on Graham: • ddt-cpu, for CPU debugging and profiling; • ddt-gpu, for GPU or mixed CPU/GPU debugging. As this is a GUI application, log in using ssh -Y, and use an like (Windows) or (Mac) to ensure proper X11 tunnelling.

Both DDT and MAP are normally used interactively through their GUI, which is normally accomplished using the salloc command (see below for details). MAP can also be used non-interactively, in which case it can be submitted to the scheduler with the sbatch command. The current license limits the use of DDT/MAP to a maximum of 512 CPU cores across all users at any given time, while DDT-GPU is limited to 8 GPUs. Logical journey of zoombinis download. Usage CPU-only code, no GPUs 1. Allocate the node or nodes on which to do the debugging or profiling. This will open a shell session on the allocated node. Salloc --x11 --time=0-1:00 --mem-per-cpu=4G --ntasks=4 2.

Load the appropriate module, for example module load ddt-cpu 3. Run the ddt or map command. Ddt path/to/code map path/to/code Make sure the MPI Message Passing Interface implementation is the default OpenMPI in the DDT/MAP application window, before pressing the Run button.

Oracle express for mac download. If this is not the case, press the Change button next to the Implementation: string, and select the correct option from the drop-down menu. Also, specify the desired number of cpu cores in this window.

When done, exit the shell to terminate the allocation. IMPORTANT: The current versions of DDT and OpenMPI have a compatibility issue which breaks the important feature of DDT - displaying message queues (available from the 'Tools' drop down menu). There is a workaround: before running DDT, you have to execute the following command: $ export OMPI_MCA_pml=ob1 Be aware that the above workaround can make your MPI Message Passing Interface code run slower, so only use this trick when debugging. Allocate the node or nodes on which to do the debugging or profiling with salloc. This will open a shell session on the allocated node. Salloc --x11 --time=0-1:00 --mem-per-cpu=4G --ntasks=1 --gres=gpu:1 2. Load the appropriate module, for example module load ddt-gpu This may fail with a suggestion to load an older version of OpenMPI first.