[IGBF-2945] Run trimmomatic on HPC system using nextflow and Singularity - JIRA UNCC

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Type: Task
Status: Closed (View Workflow)
Priority: Major
Resolution: Done
Affects Version/s: None
Fix Version/s: None
Labels:
None

Story Points:
1.5
Epic Link:
Deploy and maintain infrastructure
Sprint:
Fall 3 2021 Sep 13 - Sep 24

Description

To make our HPC data processing easier and more robust, we are exploring using the nextflow workflow management system in conjunction with Singularity containers.

For this task, develop a nextflow script that runs "trimmomatic" on all fastq files in a directory.

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relates to

IGBF-2909 Determine if and how we can use Nextflow on UNCC HPC cluster

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Ann Loraine added a comment - 15/Sep/21 5:17 PM

From RR:

The command can be found in this script:
/projects/tomato_genome/scripts/rob/trim-phase2.slurm


The command from that script is below:

file=$(sed -n -e "${SLURM_ARRAY_TASK_ID}p"   /projects/tomato_genome/rnaseq/phase2-rnaseq-Sep2021/halffile.txt)

module load trimmomatic

java -jar /apps/pkg/trimmomatic/0.39/Trimmomatic-0.39/trimmomatic-0.39.jar \
PE -summary summary-${file}.txt -validatePairs  /projects/tomato_genome/rnaseq/phase2-rnaseq-Sep2021/${file}_R1_001.fastq.gz \
/projects/tomato_genome/rnaseq/phase2-rnaseq-Sep2021//${file}_R2_001.fastq.gz \
 ${file}-R1_paired.fq  ${file}-R1_unpaired.fq ${file}-R2_paired.fq  ${file}-R2_unpaired.fq \
 ILLUMINACLIP:TruSeq2-PE.fa:2:30:10 LEADING:3 TRAILING:3 SLIDINGWINDOW:4:15 MINLEN:50



For nextflow, we'd have 2 file inputs. 4 file outputs.
But I am hard coding the names file too so that should become an input in nextflow ( /projects/tomato_genome/rnaseq/phase2-rnaseq-Sep2021/halffile.txt).

Rob

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Ann Loraine added a comment - 15/Sep/21 5:17 PM From RR: The command can be found in this script: /projects/tomato_genome/scripts/rob/trim-phase2.slurm The command from that script is below: file=$(sed -n -e "${SLURM_ARRAY_TASK_ID}p" /projects/tomato_genome/rnaseq/phase2-rnaseq-Sep2021/halffile.txt) module load trimmomatic java -jar /apps/pkg/trimmomatic/0.39/Trimmomatic-0.39/trimmomatic-0.39.jar \ PE -summary summary-${file}.txt -validatePairs /projects/tomato_genome/rnaseq/phase2-rnaseq-Sep2021/${file}_R1_001.fastq.gz \ /projects/tomato_genome/rnaseq/phase2-rnaseq-Sep2021 //${file}_R2_001.fastq.gz \ ${file}-R1_paired.fq ${file}-R1_unpaired.fq ${file}-R2_paired.fq ${file}-R2_unpaired.fq \ ILLUMINACLIP:TruSeq2-PE.fa:2:30:10 LEADING:3 TRAILING:3 SLIDINGWINDOW:4:15 MINLEN:50 For nextflow, we'd have 2 file inputs. 4 file outputs. But I am hard coding the names file too so that should become an input in nextflow ( /projects/tomato_genome/rnaseq/phase2-rnaseq-Sep2021/halffile.txt). Rob

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Ann Loraine added a comment - 16/Sep/21 7:03 AM

Trimmomatic documentation: http://www.usadellab.org/cms/?page=trimmomatic

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Ann Loraine added a comment - 16/Sep/21 7:03 AM Trimmomatic documentation: http://www.usadellab.org/cms/?page=trimmomatic

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Ann Loraine added a comment - 16/Sep/21 7:07 AM - edited

[aloraine@str-i1 nextflow]$ module load singularity
[aloraine@str-i1 nextflow]$ singularity pull trimmomatic_v0.39.sif oras://registry.forgemia.inra.fr/gafl/singularity/trimmomatic/trimmomatic:latest
INFO:    Downloading oras image
[aloraine@str-i1 nextflow]$ singularity run-help ./trimmomatic_v0.39.sif
Container for trimmomatic
A flexible read trimming tool for Illumina NGS data
http://www.usadellab.org/cms/?page=trimmomatic

Version: 0.39
Package installation using Miniconda3-4.7.12
All packages are in /opt/miniconda/bin & are in PATH
Default runscript: trimmomatic

Usage:
    trimmomatic_v0.39.sif --help
    or:
    singularity exec trimmomatic_v0.39.sif trimmomatic --help
[aloraine@str-i1 nextflow]$ singularity exec trimmomatic_v0.39.sif trimmomatic --help
INFO:    Converting SIF file to temporary sandbox...
Usage: 
       PE [-version] [-threads <threads>] [-phred33|-phred64] [-trimlog <trimLogFile>] [-summary <statsSummaryFile>] [-quiet] [-validatePairs] [-basein <inputBase> | <inputFile1> <inputFile2>] [-baseout <outputBase> | <outputFile1P> <outputFile1U> <outputFile2P> <outputFile2U>] <trimmer1>...
   or: 
       SE [-version] [-threads <threads>] [-phred33|-phred64] [-trimlog <trimLogFile>] [-summary <statsSummaryFile>] [-quiet] <inputFile> <outputFile> <trimmer1>...
   or: 
       -version
INFO:    Cleaning up image...

Above worked fine on a head node, but failed due to a network error of some time when run from an Andromeda partition interactive session.

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Ann Loraine added a comment - 16/Sep/21 7:07 AM - edited [aloraine@str-i1 nextflow]$ module load singularity [aloraine@str-i1 nextflow]$ singularity pull trimmomatic_v0.39.sif oras: //registry.forgemia.inra.fr/gafl/singularity/trimmomatic/trimmomatic:latest INFO: Downloading oras image [aloraine@str-i1 nextflow]$ singularity run-help ./trimmomatic_v0.39.sif Container for trimmomatic A flexible read trimming tool for Illumina NGS data http: //www.usadellab.org/cms/?page=trimmomatic Version: 0.39 Package installation using Miniconda3-4.7.12 All packages are in /opt/miniconda/bin & are in PATH Default runscript: trimmomatic Usage: trimmomatic_v0.39.sif --help or: singularity exec trimmomatic_v0.39.sif trimmomatic --help [aloraine@str-i1 nextflow]$ singularity exec trimmomatic_v0.39.sif trimmomatic --help INFO: Converting SIF file to temporary sandbox... Usage: PE [-version] [-threads <threads>] [-phred33|-phred64] [-trimlog <trimLogFile>] [-summary <statsSummaryFile>] [-quiet] [-validatePairs] [-basein <inputBase> | <inputFile1> <inputFile2>] [-baseout <outputBase> | <outputFile1P> <outputFile1U> <outputFile2P> <outputFile2U>] <trimmer1>... or: SE [-version] [-threads <threads>] [-phred33|-phred64] [-trimlog <trimLogFile>] [-summary <statsSummaryFile>] [-quiet] <inputFile> <outputFile> <trimmer1>... or: -version INFO: Cleaning up image... Above worked fine on a head node, but failed due to a network error of some time when run from an Andromeda partition interactive session.

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Ann Loraine added a comment - 16/Sep/21 7:44 AM

Asked about error pulling Singularity container onto a cluster node. Reply:

"Compute nodes do not have internet access, so Singularity pulls can only occur on the head nodes. So in this case, you'll want to pull the image on the head node into your account so that it's available on the compute nodes."

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Ann Loraine added a comment - 16/Sep/21 7:44 AM Asked about error pulling Singularity container onto a cluster node. Reply: "Compute nodes do not have internet access, so Singularity pulls can only occur on the head nodes. So in this case, you'll want to pull the image on the head node into your account so that it's available on the compute nodes."

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Ann Loraine added a comment - 16/Sep/21 8:05 AM

Running with singularity container on a cluster node;

nextflow run trim.nf -with-singularity trimmomatic_v0.39.sif

The first time I did this, I got an error about the work directory not being found, possibly because the container had not "mounting" the local file system. Adding the following line to "nextflow.config" fixed the problem:

singularity.autoMounts = true

Can I add this configuration to the nextflow script itself?

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Ann Loraine added a comment - 16/Sep/21 8:05 AM Running with singularity container on a cluster node; nextflow run trim.nf -with-singularity trimmomatic_v0.39.sif The first time I did this, I got an error about the work directory not being found, possibly because the container had not "mounting" the local file system. Adding the following line to "nextflow.config" fixed the problem: singularity.autoMounts = true Can I add this configuration to the nextflow script itself?

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Ann Loraine added a comment - 16/Sep/21 9:41 AM - edited

Running:

#!/usr/bin/env nextflow

params.saveMode = 'copy'
params.filePattern = "/projects/tomato_genome/rnaseq/phase2-rnaseq-Sep2021/*_{R1,R2}_001.fastq.gz"
params.resultsDir = 'results/trimmomatic'

Channel
    .fromFilePairs( params.filePattern )
    .ifEmpty { error "Cannot find any reads matching: ${params.filePattern}" }
    .set { read_pairs_ch }
    
process trim {
    time '2h'
    publishDir params.resultsDir, mode: params.saveMode
    
    input:
    tuple val(prefix), file(reads) from read_pairs_ch

    output:
    stdout result

    script:

    fq_1_paired = prefix + '_R1.paired.fastq'
    fq_1_unpaired = prefix + '_R1.unpaired.fastq'
    fq_2_paired = prefix + '_R2.paired.fastq'
    fq_2_unpaired = prefix + '_R2.unpaired.fastq'
	  
    """
    trimmomatic \
    PE -phred33 \
    ${reads[0]} \
    ${reads[1]} \
    $fq_1_paired \
    $fq_1_unpaired \
    $fq_2_paired \
    $fq_2_unpaired \
    ILLUMINACLIP:TruSeq2-PE.fa:2:30:10 LEADING:3 TRAILING:3 SLIDINGWINDOW:4:15 MINLEN:50
    printf 'processed sample $prefix with trimmomatic version '
    trimmomatic -version
    """
}

result.view()

So far it appears to be working OK. But even though a few jobs have finished, there's no "results" directory visible. Not sure why not.

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Ann Loraine added a comment - 16/Sep/21 9:41 AM - edited Running: #!/usr/bin/env nextflow params.saveMode = 'copy' params.filePattern = "/projects/tomato_genome/rnaseq/phase2-rnaseq-Sep2021/*_{R1,R2}_001.fastq.gz" params.resultsDir = 'results/trimmomatic' Channel .fromFilePairs( params.filePattern ) .ifEmpty { error "Cannot find any reads matching: ${params.filePattern}" } .set { read_pairs_ch } process trim { time '2h' publishDir params.resultsDir, mode: params.saveMode input: tuple val(prefix), file(reads) from read_pairs_ch output: stdout result script: fq_1_paired = prefix + '_R1.paired.fastq' fq_1_unpaired = prefix + '_R1.unpaired.fastq' fq_2_paired = prefix + '_R2.paired.fastq' fq_2_unpaired = prefix + '_R2.unpaired.fastq' """ trimmomatic \ PE -phred33 \ ${reads[0]} \ ${reads[1]} \ $fq_1_paired \ $fq_1_unpaired \ $fq_2_paired \ $fq_2_unpaired \ ILLUMINACLIP:TruSeq2-PE.fa:2:30:10 LEADING:3 TRAILING:3 SLIDINGWINDOW:4:15 MINLEN:50 printf 'processed sample $prefix with trimmomatic version ' trimmomatic -version """ } result.view() So far it appears to be working OK. But even though a few jobs have finished, there's no "results" directory visible. Not sure why not.

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Ann Loraine added a comment - 16/Sep/21 12:43 PM

Answer to above: Files created need to be tracked in the output

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Ann Loraine added a comment - 16/Sep/21 12:43 PM Answer to above: Files created need to be tracked in the output

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Ann Loraine added a comment - 17/Sep/21 4:17 AM

This was useful:

https://gencore.bio.nyu.edu/three-useful-nextflow-patterns-every-computational-biologist-should-know/

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Ann Loraine added a comment - 17/Sep/21 4:17 AM This was useful: https://gencore.bio.nyu.edu/three-useful-nextflow-patterns-every-computational-biologist-should-know/

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Ann Loraine added a comment - 17/Sep/21 3:41 PM

Final version of script read to be merged into team repository:

https://bitbucket.org/hotpollen/rna-seq/src/master/src/trimmomatic.nf

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Ann Loraine added a comment - 17/Sep/21 3:41 PM Final version of script read to be merged into team repository: https://bitbucket.org/hotpollen/rna-seq/src/master/src/trimmomatic.nf

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Assignee:

Ann Loraine

Reporter:

Ann Loraine

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Dates

Created:

15/Sep/21 5:16 PM

Updated:

20/Sep/21 5:51 PM

Resolved:

17/Sep/21 3:41 PM