Welcome to NVIDIA Parabricks v4.7.0

bammetrics

Accelerated GATK4 CollectWGSMetrics.

This tool applies an accelerated version of the GATK CollectWGSMetrics for assessing coverage and quality of an aligned whole-genome BAM file. This includes metrics such as the fraction of reads that pass the base and mapping quality filters, and the coverage levels (read-depth) across the genome. These act as an overall quality check for the user, allowing assessment of how well a sequencing run has performed.

See the bammetrics Reference section for a detailed listing of all available options.

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# This command assumes all the inputs are in the current working directory and all the outputs go to the same place. docker run --rm --gpus all --volume $(pwd):/workdir --volume $(pwd):/outputdir \ --workdir /workdir \ nvcr.io/nvidia/clara/clara-parabricks:4.7.0-1 \ pbrun bammetrics \ --ref /workdir/${REFERENCE_FILE} \ --bam /workdir/${INPUT_BAM} \ --out-metrics-file /outputdir/${METRICS_FILE}

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.

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$ gatk CollectWgsMetrics \ -R <INPUT_DIR>/${REFERENCE_FILE} \ -I <INPUT_DIR>/${INPUT_BAM} \ -O <OUTPUT_DIR>/${METRICS_FILE}

Run bammetrics on a BAM file to generate a metrics file.


Type

Name

Required?

Description

I/O --ref REF Yes Path to the reference file.
I/O --bam BAM Yes Path to the BAM file.
I/O --interval-file INTERVAL_FILE No Path to an interval file in one of these formats: Picard-style (.interval_list or .picard), GATK-style (.list or .intervals), or BED file (.bed). This option can be used multiple times.
I/O --out-metrics-file OUT_METRICS_FILE Yes Output Metrics File.
Tool --minimum-base-quality MINIMUM_BASE_QUALITY No Minimum base quality for a base to contribute coverage. (default: 20)
Tool --minimum-mapping-quality MINIMUM_MAPPING_QUALITY No Minimum mapping quality for a read to contribute coverage. (default: 20)
Tool --count-unpaired No If specified, count unpaired reads and paired reads with one end unmapped.
Tool --coverage-cap COVERAGE_CAP No Treat positions with coverage exceeding this value as if they had coverage at this value (but calculate the difference for PCT_EXC_CAPPED). (default: 250)
Tool -L INTERVAL, --interval INTERVAL No Interval within which to collect metrics from the BAM/CRAM file. All intervals will have a padding of 0 to get read records, and overlapping intervals will be combined. Interval files should be passed using the --interval-file option. This option can be used multiple times (e.g. "-L chr1 -L chr2:10000 -L chr3:20000+ -L chr4:10000-20000").
Performance --num-threads NUM_THREADS No Number of threads to run. (default: 12)
Runtime --verbose No Enable verbose output.
Runtime --x3 No Show full command line arguments.
Runtime --logfile LOGFILE No Path to the log file. If not specified, messages will only be written to the standard error output.
Runtime --tmp-dir TMP_DIR No Full path to the directory where temporary files will be stored. (default: .)
Runtime --with-petagene-dir WITH_PETAGENE_DIR No 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. Optionally set the PetaLinkMode environment variable that is used to further configure PetaLink, notably setting it to "+write" to enable outputting compressed BAM and .fastq files.
Runtime --keep-tmp No Do not delete the directory storing temporary files after completion.
Runtime --no-seccomp-override No Do not override seccomp options for docker.
Runtime --version No View compatible software versions.
Runtime --preserve-file-symlinks No Override default behavior to keep file symlinks intact and not resolve the symlink.
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