out of memory error when annotating somatic variants with VEP

[JakubLiu]

Description
When the somatic_variant_annotation step is being done (with the ngs_mapping and somatic_variant_calling), the error slurmstepd: error: Detected 1 oom_kill event in StepId=16877737.batch. Some of the step tasks have been OOM Killed. occurs.

• the ngs_mapping step has been done with bwa
• the somatic_variant_calling step has been done with mutect2

To Reproduce
Assuming that the step directories are created, go to <project_name>/somatic_variant_annotation/ and run sbatch pipeline_job.sh

Additional context
Increasing the memory in pipeline_job.sh from the default 6G to (for example) 16G seems to fix this issue #SBATCH --mem=16G .