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  • myrs
    Junior Member
    • Feb 2015
    • 1

    #1

    BLASR becoming very slow. What's the cause?

    Hi there, community!

    I am using BLASR to align PB subreads to a reference. Usually this worked pretty well, but now I added some options that were recommended for the use with PBHoney, namely -clipping soft and -noSplitSubreads.

    Suddenly this job has been running for more than 24 hours already, on the same dataset that took only a few hours before.

    Does anyone have a clue whether it is one of the flags that slows it down so significantly? (Otherwise it could also be a problem with the computer or whatever)
    Complete command is below. $file is a .fofn with several .bax.h5 inside.

    Any suggestions highly appreciated!
    Thanks,
    myrs

    Code:
    BLASR $file $REF\
        -sa $INDEX\
        -sam\
        -nproc 8\
        -bestn 1\
        -clipping soft\
        -noSplitSubreads\

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