Canu-Teaching: Difference between revisions

From Research Computing Center Wiki
Jump to navigation Jump to search
No edit summary
No edit summary
Line 9: Line 9:


=== Version ===
=== Version ===
1.6
1.5
   
   
=== Author / Distributor ===
=== Author / Distributor ===
Line 21: Line 21:
=== Running Program ===
=== Running Program ===


The last version of this application is at /usr/local/apps/eb/canu/1.6-foss-2016b
The last version of this application is at /usr/local/apps/eb/canu/1.5-foss-2016b


To use this version, please load the module with
To use this version, please load the module with
<pre class="gscript">
<pre class="gscript">
ml canu/1.6-foss-2016b  
ml canu/1.5-foss-2016b  
</pre>  
</pre>  


Line 42: Line 42:
   
   
cd $SLURM_SUBMIT_DIR<br>
cd $SLURM_SUBMIT_DIR<br>
ml canu/1.6-foss-2016b<br>     
ml canu/1.5-foss-2016b<br>     
canu <u>[options]</u><br>   
canu <u>[options]</u><br>   
</div>
</div>
Line 58: Line 58:
   
   
<pre  class="gcommand">
<pre  class="gcommand">
ml canu/1.6-foss-2016b  
ml canu/1.5-foss-2016b  
canu canu -h
canu canu -h


usage:   canu [-version] [-citation] \
usage: canu [-version] \
              [-correct | -trim | -assemble | -trim-assemble] \
            [-correct | -trim | -assemble | -trim-assemble] \
              [-s <assembly-specifications-file>] \
            [-s <assembly-specifications-file>] \
              -p <assembly-prefix> \
            -p <assembly-prefix> \
              -d <assembly-directory> \
            -d <assembly-directory> \
              genomeSize=<number>[g|m|k] \
            genomeSize=<number>[g|m|k] \
              [other-options] \
            [other-options] \
              [-pacbio-raw |
            [-pacbio-raw | -pacbio-corrected | -nanopore-raw | -nanopore-corrected] *fastq
              -pacbio-corrected |
              -nanopore-raw |
              -nanopore-corrected] file1 file2 ...


example: canu -d run1 -p godzilla genomeSize=1g -nanopore-raw reads/*.fasta.gz
  By default, all three stages (correct, trim, assemble) are computed.
 
   To compute only a single stage, use:
 
   To restrict canu to only a specific stage, use:
     -correct      - generate corrected reads
     -correct      - generate corrected reads
     -trim          - generate trimmed reads
     -trim          - generate trimmed reads
Line 82: Line 77:
     -trim-assemble - generate trimmed reads and then assemble them
     -trim-assemble - generate trimmed reads and then assemble them


   The assembly is computed in the -d <assembly-directory>, with output files named
   The assembly is computed in the (created) -d <assembly-directory>, with most
  using the -p <assembly-prefix>.  This directory is created if needed.  It is not
  files named using the -p <assembly-prefix>.
  possible to run multiple assemblies in the same directory.


   The genome size should be your best guess of the haploid genome size of what is being
   The genome size is your best guess of the genome size of what is being assembled.
   assembled.  It is used primarily to estimate coverage in reads, NOT as the desired
   It is used mostly to compute coverage in reads.  Fractional values are allowed: '4.7m'
  assembly size.  Fractional values are allowed: '4.7m' equals '4700k' equals '4700000'
  is the same as '4700k' and '4700000'


  Some common options:
   A full list of options can be printed with '-options'.  All options
    useGrid=string
  can be supplied in an optional sepc file.
      - Run under grid control (true), locally (false), or set up for grid control
        but don't submit any jobs (remote)
    rawErrorRate=fraction-error
      - The allowed difference in an overlap between two raw uncorrected reads.  For lower
        quality reads, use a higher number.  The defaults are 0.300 for PacBio reads and
        0.500 for Nanopore reads.
    correctedErrorRate=fraction-error
      - The allowed difference in an overlap between two corrected reads.  Assemblies of
        low coverage or data with biological differences will benefit from a slight increase
        in this.  Defaults are 0.045 for PacBio reads and 0.144 for Nanopore reads.
    gridOptions=string
      - Pass string to the command used to submit jobs to the grid.  Can be used to set
        maximum run time limits.  Should NOT be used to set memory limits; Canu will do
        that for you.
    minReadLength=number
      - Ignore reads shorter than 'number' bases long.  Default: 1000.
    minOverlapLength=number
      - Ignore read-to-read overlaps shorter than 'number' bases long.  Default: 500.
   A full list of options can be printed with '-options'.  All options can be supplied in
  an optional sepc file with the -s option.


   Reads can be either FASTA or FASTQ format, uncompressed, or compressed with gz, bz2 or xz.
   Reads can be either FASTA or FASTQ format, uncompressed, or compressed
  Reads are specified by the technology they were generated with:
  with gz, bz2 or xz. Reads are specified by the technology they were
  generated with:
     -pacbio-raw        <files>
     -pacbio-raw        <files>
     -pacbio-corrected  <files>
     -pacbio-corrected  <files>

Revision as of 12:41, 10 August 2018

Category

Bioinformatics

Program On

Teaching

Version

1.5

Author / Distributor

canu

Description

"Canu is a fork of the Celera Assembler, designed for high-noise single-molecule sequencing (such as the PacBio RS II or Oxford Nanopore MinION). Canu is a hierarchical assembly pipeline which runs in four steps: Detect overlaps in high-noise sequences using MHAP Generate corrected sequence consensus Trim corrected sequences Assemble trimmed corrected sequences" More details are at canu

Running Program

The last version of this application is at /usr/local/apps/eb/canu/1.5-foss-2016b

To use this version, please load the module with 

ml canu/1.5-foss-2016b

Here is an example of a shell script, sub.sh, to run on the batch queue:

#!/bin/bash
#SBATCH --job-name=j_canu
#SBATCH --partition=batch
#SBATCH --mail-type=ALL
#SBATCH --mail-user=username@uga.edu
#SBATCH --ntasks=1
#SBATCH --mem=10gb
#SBATCH --time=08:00:00
#SBATCH --output=canu.%j.out

cd $SLURM_SUBMIT_DIR
ml canu/1.5-foss-2016b
canu [options]

In the real submission script, at least all the above underlined values need to be reviewed or to be replaced by the proper values.

Please refer to Running_Jobs_on_the_teaching_cluster, Run X window Jobs and Run interactive Jobs for more details of running jobs at Teaching cluster.


Here is an example of job submission command: 

sbatch ./sub.sh

Documentation

ml canu/1.5-foss-2016b 
canu canu -h

usage: canu [-version] \
            [-correct | -trim | -assemble | -trim-assemble] \
            [-s <assembly-specifications-file>] \
             -p <assembly-prefix> \
             -d <assembly-directory> \
             genomeSize=<number>[g|m|k] \
            [other-options] \
            [-pacbio-raw | -pacbio-corrected | -nanopore-raw | -nanopore-corrected] *fastq

  By default, all three stages (correct, trim, assemble) are computed.
  To compute only a single stage, use:
    -correct       - generate corrected reads
    -trim          - generate trimmed reads
    -assemble      - generate an assembly
    -trim-assemble - generate trimmed reads and then assemble them

  The assembly is computed in the (created) -d <assembly-directory>, with most
  files named using the -p <assembly-prefix>.

  The genome size is your best guess of the genome size of what is being assembled.
  It is used mostly to compute coverage in reads.  Fractional values are allowed: '4.7m'
  is the same as '4700k' and '4700000'

  A full list of options can be printed with '-options'.  All options
  can be supplied in an optional sepc file.

  Reads can be either FASTA or FASTQ format, uncompressed, or compressed
  with gz, bz2 or xz.  Reads are specified by the technology they were
  generated with:
    -pacbio-raw         <files>
    -pacbio-corrected   <files>
    -nanopore-raw       <files>
    -nanopore-corrected <files>

Complete documentation at http://canu.readthedocs.org/en/latest/

Back to Top

Installation

Source code is obtained from canu

System

64-bit Linux

Retrieved from "https://wiki.gacrc.uga.edu/index.php?title=Canu-Teaching&oldid=13125"