software:specfem
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software:specfem [2018/03/05 15:04] wphase |
software:specfem [2018/03/05 16:06] (current) wphase |
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| - | ==== Running multiple SPECFEM3D_GLOBE jobs in parallel ==== | + | ==== Running SEM simulations in parallel ==== |
| + | |||
| + | Some instructions to use custom scripts enabling parallel SEM simulations on the HPC cluster | ||
| + | |||
| + | === Preparing the input files === | ||
| - | To launch batch of SEM simulations: | ||
| First, create an event list "Events.txt" with 3 collumns: | First, create an event list "Events.txt" with 3 collumns: | ||
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| * 3nd column: path to ''STATION'' file for this event (can be the same for all events) | * 3nd column: path to ''STATION'' file for this event (can be the same for all events) | ||
| - | Then you must setup a ''Par_file'' as described above (be careful to use a version of ''Par_file'' that is compatible with your SEM version) | + | Then you must setup a ''Par_file'' (be careful to use a version of ''Par_file'' that is compatible with your SEM version) |
| + | |||
| + | Finally, you must setup hostfiles named ''nodelistN'' files where N=0,...,Np-1 (Np, the number of parallel SEM simulations). These files must specify host names and number of slots per node. Here is an example: | ||
| + | <code> | ||
| + | $ cat nodelist0 | ||
| + | hpc-n443 slots=8 | ||
| + | hpc-n444 slots=8 | ||
| + | hpc-n445 slots=8 | ||
| + | </code> | ||
| + | (see ''/b/home/eost/zac/jobs/specfem/parallelSEM/nodelist0'') | ||
| + | |||
| + | === Running the simulations in parallel === | ||
| - | The SPECFEM runs will be handled using 3 scripts: | + | Parallel SEM simulations are handled using 3 scripts: |
| - | * ''parallelSEM.sh'': is the main script | + | * ''parallelSEM.sh'': is the main script, that compiles the code and run the simulations |
| * ''run_gpu_nodelist.sh'' is the script used to run the mesher and solver | * ''run_gpu_nodelist.sh'' is the script used to run the mesher and solver | ||
| * ''sleep.slurm'' is a script to reserve the GPU nodes | * ''sleep.slurm'' is a script to reserve the GPU nodes | ||
| All these scripts are available in ''/b/home/eost/zac/jobs/specfem/parallelSEM'' | All these scripts are available in ''/b/home/eost/zac/jobs/specfem/parallelSEM'' | ||
| - | Before running it, make sure the input parameters in ''parallelSEM.sh'' are consistent with the input parameters stated above (see ''INPUT PARAMS'' in the main script). Then run: | + | Before running your job, make sure that the input parameters in ''parallelSEM.sh'' are consistent with the input parameters stated above (see ''INPUT PARAMS'' in the main script). Specifically: |
| + | * ''SPECFEMDIR'': path to SPECFEM3D_GLOBE directory | ||
| + | * ''Par_file'': path to the Par_file used in simulations | ||
| + | * ''Nparallel'': Number of SEM simulations in parallel (make sure enough GPUs are available) | ||
| + | * ''event_list'': List of events with the format given above | ||
| + | |||
| + | Then run your simulations: | ||
| <code> | <code> | ||
| ./parallelSEM.sh | ./parallelSEM.sh | ||
software/specfem.1520258685.txt.gz · Last modified: 2018/03/05 15:04 by wphase
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