process {

    publishDir = { "${params.outdir}/${task.process.tokenize(':')[-1].tokenize('_')[0].toLowerCase()}" }

    withName: 'MERYL.*' {
        ext.args = 'k=21'
    }

    withName: 'GENOMESCOPE2' {
        ext.args = '-k 21 -p 1'
    }

}