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MEGAN on Biowulf & Helix

MEGAN is a MEtaGenome ANalyzer. It can read Blast output. Normally this program would be run on your own desktop, but MEGAN is a memory hog, and some desktop systems may not have enough memory to handle a large dataset.

MEGAN was developed by D. H. Huson et al at U. Tübingen. MEGAN website

MEGAN is a graphical (GUI) program. It can be run either on Helix or Biowulf, after making an Xwindows connection to the appropriate system.

On Helix

Sample session:

helix% module load MEGAN

helix% MEGAN

On Biowulf

Allocate an interactive node and run MEGAN there. Sample session requesting an allocation of 10 GB of RAM:

[susanc@biowulf ~]$ sinteractive --mem=10g
salloc.exe: Granted job allocation 143361

[susanc@cn0124 ~]$ module load MEGAN

[susanc@cn0124 ~]$ MEGAN
[...]

[susanc@cn0124 ~]$ exit
exit
srun: error: cn0124: task 0: Exited with exit code 130
                                                      salloc.exe: Relinquishing job allocation 143361
[susanc@biowulf ~]$

Documentation

MEGAN documentation at the U. Tübingen site