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Bowtie2 short read mapper



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Usage example

Here is a simple test case for the runtime environment.

Download the example job here.

The job description file bowtie2.xrsl:

Corresponding execution script

Here the actual run consists of two steps: 1. Indexing the reference genome (bowtie-build), 2. Running the mapping task (bowtie),  The exitcode from bowtie is used as the exit code for the script, this way ARC knows whether the job has succeeded or failed.

Interface definition

The runtime environment sets the following environment variables:

  • BOWTIE_DIR points to the BOWTIE base directory
  • PATH is set so that the $BOWTIE_DIR is included in the path
  • BOWTIEDB is set to a suitable temporary directory for unpacking the datasets
  • BOWTIE_NUM_CPUS is set to the number of allocated CPUs for this job. Remember to use bowtie2 -p BOWTIE_NUM_CPUS ... when running.

System administrator guide for installing the RE

Bowtie2 executables

Pre-compiled Bowtie2 executables can be downloaded from the Bowtie home page

Sample runtime environment for SLURM.

Modify the scripts as needed and save the main script in your ARC runtime directory as APPS/BIO/BOWTIE-2.0.0.

Contact information

Contact if you have any Bowtie pecific questions.

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