The current GATK version is 3.7-0
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1. Search using the upper-right search box, e.g. using the error message.
2. Try the latest version of tools.
3. Include tool and Java versions.
4. Tell us whether you are following GATK Best Practices.
5. Include relevant details, e.g. platform, DNA- or RNA-Seq, WES (+capture kit) or WGS (PCR-free or PCR+), paired- or single-end, read length, expected average coverage, somatic data, etc.
6. For tool errors, include the error stacktrace as well as the exact command.
7. For format issues, include the result of running ValidateSamFile for BAMs or ValidateVariants for VCFs.
8. For weird results, include an illustrative example, e.g. attach IGV screenshots according to Article#5484.
9. For a seeming variant that is uncalled, include results of following Article#1235.

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Then follow instructions in Article#1894.

Formatting tip!


Surround blocks of code, error messages and BAM/VCF snippets--especially content with hashes (#)--with lines with three backticks ( ``` ) each to make a code block.
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how to write custom gatherer for GATK walker in qscript

pankajxyzpankajxyz Member Posts: 3

My qscript for GATK printreads walker takes very long time for gather function( BAM gather function) which uses picard mergesamfiles. How can I write custom gather function in qscript to improve the performance.
1. I want to try mutli-threading for picard mergesamfiles ( which is false by default)
2. I also to try simple concatenation of bam files (scattered bam files are already sorted)

Answers

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