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An existing application can be investigated with respect to meta data usage. Let us assume an example job script for an MPI parallel application myexample.bin.
| Codeblock | ||
|---|---|---|
| ||
#!/bin/bash #SBATCH --nodes=2 #SBATCH --ntasks-per-node=8 #SBATCH --time=01:00:00 #SBATCH --partition=standard96 srun ./myexample.bin |
Once you add the linux command strace to the code start you create two file per MPI task (linux process).
| Codeblock | ||
|---|---|---|
| ||
#!/bin/bash
#SBATCH --nodes=2
#SBATCH --ntasks-per-node=8
#SBATCH --time=01:00:00
#SBATCH --partition=standard96
srun strace -ff -t -o trace -e open,openat ./myexample.bin |
Known issues
For some of the codes we are aware of certain issues:
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