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(Created page with "= Introduction = [https://www.arm.com/products/development-tools/hpc-tools/cross-platform/forge/ddt Allinea's DDT] (now called ARM DDT after Allinea was acquired by ARM) is a...") |
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This software is available on Graham as two separate modules - allinea-cpu (for CPU debugging and profiling) and allinea-gpu (for GPU or mixed CPU/GPU debugging). As this is a GUI application, one has to login to Graham using "-Y" or "-X" ssh switch, for proper X tunelling. For Windows terminals, we recommend using a free program [https://mobaxterm.mobatek.net/download-home-edition.html MobaXterm (Home Edition)] which has everything you need to run DDT - SSH client and X Windows client (also SFTP, VNC and many other services). For Mac you need to install a free X WIndows client [https://www.xquartz.org/ XQuartz]. | This software is available on Graham as two separate modules - allinea-cpu (for CPU debugging and profiling) and allinea-gpu (for GPU or mixed CPU/GPU debugging). As this is a GUI application, one has to login to Graham using "-Y" or "-X" ssh switch, for proper X tunelling. For Windows terminals, we recommend using a free program [https://mobaxterm.mobatek.net/download-home-edition.html MobaXterm (Home Edition)] which has everything you need to run DDT - SSH client and X Windows client (also SFTP, VNC and many other services). For Mac you need to install a free X WIndows client [https://www.xquartz.org/ XQuartz]. | ||
Both DDT and MAP are normally used interactively through their GUI, which on Graham is accomplished via "salloc" command (see below for the details). MAP can also be used non-interactively in a batch mode, in which case it can be submitted to the scheduler via sbatch command. | |||
The current license limits the CPU DDT/MAP use to maximum 512 cpu cores across all users at any given time. For GPU DDT the limit is 8 GPUs. | |||
= Usage = | |||
== CPU-only (non-CUDA) code == | == CPU-only (non-CUDA) code == | ||
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module load allinea-cpu | module load allinea-cpu | ||
The above command | The above command will likely fail with a suggestion to load another (older) version of OpenMPI first. If that happens, you should reload the OpenMPI module with the suggested command, and then load the allinea-cpu module: | ||
module load openmpi/2.0.2 | module load openmpi/2.0.2 | ||
module load allinea-cpu | module load allinea-cpu | ||
You can then run the ddt or map command as | You can then run the ddt or map command as: | ||
ddt path/to/code | ddt path/to/code | ||
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module load cuda | module load cuda | ||
You can then run the ddt command as | You can then run the ddt command as: | ||
ddt path/to/code | ddt path/to/code | ||
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When done, exit the shell (this will terminate the allocation). | When done, exit the shell (this will terminate the allocation). | ||
= Known issues = | |||
=== MPI === | === MPI === | ||