NVIDIA Parabricks v4.3.0
NVIDIA Parabricks v4.3.0


Run a GPU-accelerated version of GATK’s CollectMultipleMetrics.

This tool applies an accelerated version of the GATK CollectMultipleMetrics for assessing BAM file metrics such as alignment success, quality score distributions, GC bias, and sequencing artifacts. This functions as a ‘meta-metrics’ tool that can run any combination of the available metrics tools in GATK to perform an overall assessment of how well a sequencing run has been performed. The available metrics tools (PROGRAMs) can be found in the reference section below.


# This command assumes all the inputs are in INPUT_DIR and all the outputs go to OUTPUT_DIR. docker run --rm --gpus all --volume INPUT_DIR:/workdir --volume OUTPUT_DIR:/outputdir \ --workdir /workdir \ nvcr.io/nvidia/clara/clara-parabricks:4.3.0-1 \ pbrun collectmultiplemetrics \ --ref /workdir/${REFERENCE_FILE} \ --bam /workdir/${INPUT_BAM} \ --out-qc-metrics-dir /outputdir/${OUTPUT_DIR}\ --gen-all-metrics

The command below is the GATK4 counterpart of the Parabricks command above. The output from this command will be identical to the output from the above command.


$ gatk CollectMultipleMetrics \ --REFERENCE_SEQUENCE <INPUT_DIR>/${REFERENCE_FILE} \ -I <INPUT_DIR>/${INPUT_BAM} \ -O <OUTPUT_DIR>/${OUTPUT_DIR} \ --PROGRAM CollectAlignmentSummaryMetrics \ --PROGRAM CollectInsertSizeMetrics \ --PROGRAM QualityScoreDistribution \ --PROGRAM MeanQualityByCycle \ --PROGRAM CollectBaseDistributionByCycle \ --PROGRAM CollectGcBiasMetrics \ --PROGRAM CollectSequencingArtifactMetrics \ --PROGRAM CollectQualityYieldMetrics

Run collectmultiplemetrics on a BAM file to generate files for multiple classes of metrics.

Input/Output file options

--ref REF

Path to the reference file. (default: None)

Option is required.

--bam BAM

Path to the BAM file. (default: None)

Option is required.

--out-qc-metrics-dir OUT_QC_METRICS_DIR

Output Directory to store results of each analysis.

(default: None)

Option is required.

Tool Options:


Generate QC for every analysis. (default: None)


Generate QC for alignment summary metric. (default: None)


Generate QC for quality score distribution metric. (default: None)


Generate QC for insert size metric. (default: None)


Generate QC for mean quality by cycle metric. (default: None)


Generate QC for base distribution by cycle metric. (default: None)


Prefix name used to generate detail and summary files for gc bias metric. (default: None)


Generate QC for sequencing artifact metric. (default: None)


Generate QC for quality yield metric. (default: None)

Performance Options:

--bam-decompressor-threads BAM_DECOMPRESSOR_THREADS

Number of threads for BAM decompression. (default: 3)

Common options:

--logfile LOGFILE

Path to the log file. If not specified, messages will only be written to the standard error output. (default: None)

--tmp-dir TMP_DIR

Full path to the directory where temporary files will be stored.

--with-petagene-dir WITH_PETAGENE_DIR

Full path to the PetaGene installation directory. By default, this should have been installed at /opt/petagene. Use of this option also requires that the PetaLink library has been preloaded by setting the LD_PRELOAD environment variable. Optionally set the PETASUITE_REFPATH and PGCLOUD_CREDPATH environment variables that are used for data and credentials (default: None)


Do not delete the directory storing temporary files after completion.


Do not override seccomp options for docker (default: None).


View compatible software versions.

GPU options:

--num-gpus NUM_GPUS

Number of GPUs to use for a run. GPUs 0..(NUM_GPUS-1) will be used.

© Copyright 2024, Nvidia. Last updated on Mar 19, 2024.