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Reduce core usage in hello-config #469

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merged 2 commits into from
Nov 20, 2024
Merged

Reduce core usage in hello-config #469

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03c751f
Reduce core usage in hello-config
pinin4fjords Nov 20, 2024
d29873b
Merge branch 'master' into reduce-cores
robsyme Nov 20, 2024
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7 changes: 3 additions & 4 deletions docs/hello_nextflow/06_hello_config.md
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Original file line number Diff line number Diff line change
Expand Up @@ -742,7 +742,7 @@ The syntax looks like this when it's by itself in a process block:
```groovy title="Syntax"
process {
withName: 'GATK_JOINTGENOTYPING' {
cpus = 8
cpus = 4
}
}
```
Expand All @@ -756,7 +756,7 @@ process {
memory = 2.GB
// allocations for a specific process
withName: 'GATK_JOINTGENOTYPING' {
cpus = 8
cpus = 4
}
}
```
Expand All @@ -774,8 +774,7 @@ nextflow run main.nf -profile my_laptop -with-report report-config-2.html

Once again, you probably won't notice a substantial difference in runtime, because this is such a small workload and the tools spend more time in ancillary tasks than in performing the 'real' work.

However, the second report shows that our resource utilization is more balanced now, and the runtime of the `GATK_JOINTGENOTYPING` process has been cut in half.
We probably didn't need to go all the way to 8 CPUs, but since there's only one call to that process, it's not a huge drain.
However, the second report shows that our resource utilization is more balanced now.

<!-- **TODO: screenshots?** -->

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