Dear mothur maintainers,
The make.contigs command such as
seems to fail to produce the group file when the number of pairs of fastq.gz files in the file file is lower than the number of processors, as given by the processor parameter. All is fine when I’m using decompressed fastq files or when I’m using fewer processors than there are pairs to process. This happens with mothur version 1.37.4, binary Linux version downloaded from GitHub and tested on RHEL 6 and Debian 8.
Let me know if you need any other information,